October 2023 - Linux-stable-mirror

FAILED: patch "[PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 41a506ef71eb38d94fe133f565c87c3e06ccc072 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023080735-masculine-twister-ba16@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: 41a506ef71eb ("powerpc/ftrace: Create a dummy stackframe to fix stack unwind") a5f04d1f2724 ("powerpc/ftrace: Regroup PPC64 specific operations in ftrace_mprofile.S") 228216716cb5 ("powerpc/ftrace: Refactor ftrace_{regs_}caller") 9bdb2eec3dde ("powerpc/ftrace: Don't use lmw/stmw in ftrace_regs_caller()") 76b372814b08 ("powerpc/ftrace: Style cleanup in ftrace_mprofile.S") fc75f8733798 ("powerpc/ftrace: Have arch_ftrace_get_regs() return NULL unless FL_SAVE_REGS is set") 34d8dac807f0 ("powerpc/ftrace: Also save r1 in ftrace_caller()") 4ee83a2cfbc4 ("powerpc/ftrace: Remove ftrace_32.S") 41315494beed ("powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32") 830213786c49 ("powerpc/ftrace: directly call of function graph tracer by ftrace caller") 0c81ed5ed438 ("powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller") 40b035efe288 ("powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS") c75388a8ceff ("powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") d95bf254be5f ("powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") 7bdb478c1d15 ("powerpc/ftrace: Simplify PPC32's return_to_handler()") 7875bc9b07cd ("powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32") c545b9f040f3 ("powerpc/inst: Define ppc_inst_t") aebd1fb45c62 ("powerpc: flexible GPR range save/restore macros") 7dfbfb87c243 ("powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32") c93d4f6ecf4b ("powerpc/ftrace: Add module_trampoline_target() for PPC32") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 41a506ef71eb38d94fe133f565c87c3e06ccc072 Mon Sep 17 00:00:00 2001 From: Naveen N Rao <naveen(a)kernel.org> Date: Wed, 21 Jun 2023 10:43:49 +0530 Subject: [PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind With ppc64 -mprofile-kernel and ppc32 -pg, profiling instructions to call into ftrace are emitted right at function entry. The instruction sequence used is minimal to reduce overhead. Crucially, a stackframe is not created for the function being traced. This breaks stack unwinding since the function being traced does not have a stackframe for itself. As such, it never shows up in the backtrace: /sys/kernel/debug/tracing # echo 1 > /proc/sys/kernel/stack_tracer_enabled /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 4144 32 ftrace_call+0x4/0x44 1) 4112 432 get_page_from_freelist+0x26c/0x1ad0 2) 3680 496 __alloc_pages+0x290/0x1280 3) 3184 336 __folio_alloc+0x34/0x90 4) 2848 176 vma_alloc_folio+0xd8/0x540 5) 2672 272 __handle_mm_fault+0x700/0x1cc0 6) 2400 208 handle_mm_fault+0xf0/0x3f0 7) 2192 80 ___do_page_fault+0x3e4/0xbe0 8) 2112 160 do_page_fault+0x30/0xc0 9) 1952 256 data_access_common_virt+0x210/0x220 10) 1696 400 0xc00000000f16b100 11) 1296 384 load_elf_binary+0x804/0x1b80 12) 912 208 bprm_execve+0x2d8/0x7e0 13) 704 64 do_execveat_common+0x1d0/0x2f0 14) 640 160 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 Fix this by having ftrace create a dummy stackframe for the function being traced. With this, backtraces now capture the function being traced: /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 3888 32 _raw_spin_trylock+0x8/0x70 1) 3856 576 get_page_from_freelist+0x26c/0x1ad0 2) 3280 64 __alloc_pages+0x290/0x1280 3) 3216 336 __folio_alloc+0x34/0x90 4) 2880 176 vma_alloc_folio+0xd8/0x540 5) 2704 416 __handle_mm_fault+0x700/0x1cc0 6) 2288 96 handle_mm_fault+0xf0/0x3f0 7) 2192 48 ___do_page_fault+0x3e4/0xbe0 8) 2144 192 do_page_fault+0x30/0xc0 9) 1952 608 data_access_common_virt+0x210/0x220 10) 1344 16 0xc0000000334bbb50 11) 1328 416 load_elf_binary+0x804/0x1b80 12) 912 64 bprm_execve+0x2d8/0x7e0 13) 848 176 do_execveat_common+0x1d0/0x2f0 14) 672 192 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 This results in two additional stores in the ftrace entry code, but produces reliable backtraces. Fixes: 153086644fd1 ("powerpc/ftrace: Add support for -mprofile-kernel ftrace ABI") Cc: stable(a)vger.kernel.org Signed-off-by: Naveen N Rao <naveen(a)kernel.org> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20230621051349.759567-1-naveen@kernel.org diff --git a/arch/powerpc/kernel/trace/ftrace_mprofile.S b/arch/powerpc/kernel/trace/ftrace_mprofile.S index ffb1db386849..1f7d86de1538 100644 --- a/arch/powerpc/kernel/trace/ftrace_mprofile.S +++ b/arch/powerpc/kernel/trace/ftrace_mprofile.S @@ -33,6 +33,9 @@ * and then arrange for the ftrace function to be called. */ .macro ftrace_regs_entry allregs + /* Create a minimal stack frame for representing B */ + PPC_STLU r1, -STACK_FRAME_MIN_SIZE(r1) + /* Create our stack frame + pt_regs */ PPC_STLU r1,-SWITCH_FRAME_SIZE(r1) @@ -42,7 +45,7 @@ #ifdef CONFIG_PPC64 /* Save the original return address in A's stack frame */ - std r0, LRSAVE+SWITCH_FRAME_SIZE(r1) + std r0, LRSAVE+SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE(r1) /* Ok to continue? */ lbz r3, PACA_FTRACE_ENABLED(r13) cmpdi r3, 0 @@ -77,6 +80,8 @@ mflr r7 /* Save it as pt_regs->nip */ PPC_STL r7, _NIP(r1) + /* Also save it in B's stackframe header for proper unwind */ + PPC_STL r7, LRSAVE+SWITCH_FRAME_SIZE(r1) /* Save the read LR in pt_regs->link */ PPC_STL r0, _LINK(r1) @@ -142,7 +147,7 @@ #endif /* Pop our stack frame */ - addi r1, r1, SWITCH_FRAME_SIZE + addi r1, r1, SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE #ifdef CONFIG_LIVEPATCH_64 /* Based on the cmpd above, if the NIP was altered handle livepatch */

2 years

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FAILED: patch "[PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 41a506ef71eb38d94fe133f565c87c3e06ccc072 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023080737-guileless-magazine-d8dc@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: 41a506ef71eb ("powerpc/ftrace: Create a dummy stackframe to fix stack unwind") a5f04d1f2724 ("powerpc/ftrace: Regroup PPC64 specific operations in ftrace_mprofile.S") 228216716cb5 ("powerpc/ftrace: Refactor ftrace_{regs_}caller") 9bdb2eec3dde ("powerpc/ftrace: Don't use lmw/stmw in ftrace_regs_caller()") 76b372814b08 ("powerpc/ftrace: Style cleanup in ftrace_mprofile.S") fc75f8733798 ("powerpc/ftrace: Have arch_ftrace_get_regs() return NULL unless FL_SAVE_REGS is set") 34d8dac807f0 ("powerpc/ftrace: Also save r1 in ftrace_caller()") 4ee83a2cfbc4 ("powerpc/ftrace: Remove ftrace_32.S") 41315494beed ("powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32") 830213786c49 ("powerpc/ftrace: directly call of function graph tracer by ftrace caller") 0c81ed5ed438 ("powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller") 40b035efe288 ("powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS") c75388a8ceff ("powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") d95bf254be5f ("powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") 7bdb478c1d15 ("powerpc/ftrace: Simplify PPC32's return_to_handler()") 7875bc9b07cd ("powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32") c545b9f040f3 ("powerpc/inst: Define ppc_inst_t") aebd1fb45c62 ("powerpc: flexible GPR range save/restore macros") 7dfbfb87c243 ("powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32") c93d4f6ecf4b ("powerpc/ftrace: Add module_trampoline_target() for PPC32") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 41a506ef71eb38d94fe133f565c87c3e06ccc072 Mon Sep 17 00:00:00 2001 From: Naveen N Rao <naveen(a)kernel.org> Date: Wed, 21 Jun 2023 10:43:49 +0530 Subject: [PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind With ppc64 -mprofile-kernel and ppc32 -pg, profiling instructions to call into ftrace are emitted right at function entry. The instruction sequence used is minimal to reduce overhead. Crucially, a stackframe is not created for the function being traced. This breaks stack unwinding since the function being traced does not have a stackframe for itself. As such, it never shows up in the backtrace: /sys/kernel/debug/tracing # echo 1 > /proc/sys/kernel/stack_tracer_enabled /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 4144 32 ftrace_call+0x4/0x44 1) 4112 432 get_page_from_freelist+0x26c/0x1ad0 2) 3680 496 __alloc_pages+0x290/0x1280 3) 3184 336 __folio_alloc+0x34/0x90 4) 2848 176 vma_alloc_folio+0xd8/0x540 5) 2672 272 __handle_mm_fault+0x700/0x1cc0 6) 2400 208 handle_mm_fault+0xf0/0x3f0 7) 2192 80 ___do_page_fault+0x3e4/0xbe0 8) 2112 160 do_page_fault+0x30/0xc0 9) 1952 256 data_access_common_virt+0x210/0x220 10) 1696 400 0xc00000000f16b100 11) 1296 384 load_elf_binary+0x804/0x1b80 12) 912 208 bprm_execve+0x2d8/0x7e0 13) 704 64 do_execveat_common+0x1d0/0x2f0 14) 640 160 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 Fix this by having ftrace create a dummy stackframe for the function being traced. With this, backtraces now capture the function being traced: /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 3888 32 _raw_spin_trylock+0x8/0x70 1) 3856 576 get_page_from_freelist+0x26c/0x1ad0 2) 3280 64 __alloc_pages+0x290/0x1280 3) 3216 336 __folio_alloc+0x34/0x90 4) 2880 176 vma_alloc_folio+0xd8/0x540 5) 2704 416 __handle_mm_fault+0x700/0x1cc0 6) 2288 96 handle_mm_fault+0xf0/0x3f0 7) 2192 48 ___do_page_fault+0x3e4/0xbe0 8) 2144 192 do_page_fault+0x30/0xc0 9) 1952 608 data_access_common_virt+0x210/0x220 10) 1344 16 0xc0000000334bbb50 11) 1328 416 load_elf_binary+0x804/0x1b80 12) 912 64 bprm_execve+0x2d8/0x7e0 13) 848 176 do_execveat_common+0x1d0/0x2f0 14) 672 192 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 This results in two additional stores in the ftrace entry code, but produces reliable backtraces. Fixes: 153086644fd1 ("powerpc/ftrace: Add support for -mprofile-kernel ftrace ABI") Cc: stable(a)vger.kernel.org Signed-off-by: Naveen N Rao <naveen(a)kernel.org> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20230621051349.759567-1-naveen@kernel.org diff --git a/arch/powerpc/kernel/trace/ftrace_mprofile.S b/arch/powerpc/kernel/trace/ftrace_mprofile.S index ffb1db386849..1f7d86de1538 100644 --- a/arch/powerpc/kernel/trace/ftrace_mprofile.S +++ b/arch/powerpc/kernel/trace/ftrace_mprofile.S @@ -33,6 +33,9 @@ * and then arrange for the ftrace function to be called. */ .macro ftrace_regs_entry allregs + /* Create a minimal stack frame for representing B */ + PPC_STLU r1, -STACK_FRAME_MIN_SIZE(r1) + /* Create our stack frame + pt_regs */ PPC_STLU r1,-SWITCH_FRAME_SIZE(r1) @@ -42,7 +45,7 @@ #ifdef CONFIG_PPC64 /* Save the original return address in A's stack frame */ - std r0, LRSAVE+SWITCH_FRAME_SIZE(r1) + std r0, LRSAVE+SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE(r1) /* Ok to continue? */ lbz r3, PACA_FTRACE_ENABLED(r13) cmpdi r3, 0 @@ -77,6 +80,8 @@ mflr r7 /* Save it as pt_regs->nip */ PPC_STL r7, _NIP(r1) + /* Also save it in B's stackframe header for proper unwind */ + PPC_STL r7, LRSAVE+SWITCH_FRAME_SIZE(r1) /* Save the read LR in pt_regs->link */ PPC_STL r0, _LINK(r1) @@ -142,7 +147,7 @@ #endif /* Pop our stack frame */ - addi r1, r1, SWITCH_FRAME_SIZE + addi r1, r1, SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE #ifdef CONFIG_LIVEPATCH_64 /* Based on the cmpd above, if the NIP was altered handle livepatch */

2 years

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FAILED: patch "[PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x 41a506ef71eb38d94fe133f565c87c3e06ccc072 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023080739-bonehead-overexert-ce34@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^.. Possible dependencies: 41a506ef71eb ("powerpc/ftrace: Create a dummy stackframe to fix stack unwind") a5f04d1f2724 ("powerpc/ftrace: Regroup PPC64 specific operations in ftrace_mprofile.S") 228216716cb5 ("powerpc/ftrace: Refactor ftrace_{regs_}caller") 9bdb2eec3dde ("powerpc/ftrace: Don't use lmw/stmw in ftrace_regs_caller()") 76b372814b08 ("powerpc/ftrace: Style cleanup in ftrace_mprofile.S") fc75f8733798 ("powerpc/ftrace: Have arch_ftrace_get_regs() return NULL unless FL_SAVE_REGS is set") 34d8dac807f0 ("powerpc/ftrace: Also save r1 in ftrace_caller()") 4ee83a2cfbc4 ("powerpc/ftrace: Remove ftrace_32.S") 41315494beed ("powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32") 830213786c49 ("powerpc/ftrace: directly call of function graph tracer by ftrace caller") 0c81ed5ed438 ("powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller") 40b035efe288 ("powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS") c75388a8ceff ("powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") d95bf254be5f ("powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") 7bdb478c1d15 ("powerpc/ftrace: Simplify PPC32's return_to_handler()") 7875bc9b07cd ("powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32") c545b9f040f3 ("powerpc/inst: Define ppc_inst_t") aebd1fb45c62 ("powerpc: flexible GPR range save/restore macros") 7dfbfb87c243 ("powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32") c93d4f6ecf4b ("powerpc/ftrace: Add module_trampoline_target() for PPC32") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 41a506ef71eb38d94fe133f565c87c3e06ccc072 Mon Sep 17 00:00:00 2001 From: Naveen N Rao <naveen(a)kernel.org> Date: Wed, 21 Jun 2023 10:43:49 +0530 Subject: [PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind With ppc64 -mprofile-kernel and ppc32 -pg, profiling instructions to call into ftrace are emitted right at function entry. The instruction sequence used is minimal to reduce overhead. Crucially, a stackframe is not created for the function being traced. This breaks stack unwinding since the function being traced does not have a stackframe for itself. As such, it never shows up in the backtrace: /sys/kernel/debug/tracing # echo 1 > /proc/sys/kernel/stack_tracer_enabled /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 4144 32 ftrace_call+0x4/0x44 1) 4112 432 get_page_from_freelist+0x26c/0x1ad0 2) 3680 496 __alloc_pages+0x290/0x1280 3) 3184 336 __folio_alloc+0x34/0x90 4) 2848 176 vma_alloc_folio+0xd8/0x540 5) 2672 272 __handle_mm_fault+0x700/0x1cc0 6) 2400 208 handle_mm_fault+0xf0/0x3f0 7) 2192 80 ___do_page_fault+0x3e4/0xbe0 8) 2112 160 do_page_fault+0x30/0xc0 9) 1952 256 data_access_common_virt+0x210/0x220 10) 1696 400 0xc00000000f16b100 11) 1296 384 load_elf_binary+0x804/0x1b80 12) 912 208 bprm_execve+0x2d8/0x7e0 13) 704 64 do_execveat_common+0x1d0/0x2f0 14) 640 160 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 Fix this by having ftrace create a dummy stackframe for the function being traced. With this, backtraces now capture the function being traced: /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 3888 32 _raw_spin_trylock+0x8/0x70 1) 3856 576 get_page_from_freelist+0x26c/0x1ad0 2) 3280 64 __alloc_pages+0x290/0x1280 3) 3216 336 __folio_alloc+0x34/0x90 4) 2880 176 vma_alloc_folio+0xd8/0x540 5) 2704 416 __handle_mm_fault+0x700/0x1cc0 6) 2288 96 handle_mm_fault+0xf0/0x3f0 7) 2192 48 ___do_page_fault+0x3e4/0xbe0 8) 2144 192 do_page_fault+0x30/0xc0 9) 1952 608 data_access_common_virt+0x210/0x220 10) 1344 16 0xc0000000334bbb50 11) 1328 416 load_elf_binary+0x804/0x1b80 12) 912 64 bprm_execve+0x2d8/0x7e0 13) 848 176 do_execveat_common+0x1d0/0x2f0 14) 672 192 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 This results in two additional stores in the ftrace entry code, but produces reliable backtraces. Fixes: 153086644fd1 ("powerpc/ftrace: Add support for -mprofile-kernel ftrace ABI") Cc: stable(a)vger.kernel.org Signed-off-by: Naveen N Rao <naveen(a)kernel.org> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20230621051349.759567-1-naveen@kernel.org diff --git a/arch/powerpc/kernel/trace/ftrace_mprofile.S b/arch/powerpc/kernel/trace/ftrace_mprofile.S index ffb1db386849..1f7d86de1538 100644 --- a/arch/powerpc/kernel/trace/ftrace_mprofile.S +++ b/arch/powerpc/kernel/trace/ftrace_mprofile.S @@ -33,6 +33,9 @@ * and then arrange for the ftrace function to be called. */ .macro ftrace_regs_entry allregs + /* Create a minimal stack frame for representing B */ + PPC_STLU r1, -STACK_FRAME_MIN_SIZE(r1) + /* Create our stack frame + pt_regs */ PPC_STLU r1,-SWITCH_FRAME_SIZE(r1) @@ -42,7 +45,7 @@ #ifdef CONFIG_PPC64 /* Save the original return address in A's stack frame */ - std r0, LRSAVE+SWITCH_FRAME_SIZE(r1) + std r0, LRSAVE+SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE(r1) /* Ok to continue? */ lbz r3, PACA_FTRACE_ENABLED(r13) cmpdi r3, 0 @@ -77,6 +80,8 @@ mflr r7 /* Save it as pt_regs->nip */ PPC_STL r7, _NIP(r1) + /* Also save it in B's stackframe header for proper unwind */ + PPC_STL r7, LRSAVE+SWITCH_FRAME_SIZE(r1) /* Save the read LR in pt_regs->link */ PPC_STL r0, _LINK(r1) @@ -142,7 +147,7 @@ #endif /* Pop our stack frame */ - addi r1, r1, SWITCH_FRAME_SIZE + addi r1, r1, SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE #ifdef CONFIG_LIVEPATCH_64 /* Based on the cmpd above, if the NIP was altered handle livepatch */

2 years

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FAILED: patch "[PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.14.y git checkout FETCH_HEAD git cherry-pick -x 41a506ef71eb38d94fe133f565c87c3e06ccc072 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023080741-polka-twice-b0df@gregkh' --subject-prefix 'PATCH 4.14.y' HEAD^.. Possible dependencies: 41a506ef71eb ("powerpc/ftrace: Create a dummy stackframe to fix stack unwind") a5f04d1f2724 ("powerpc/ftrace: Regroup PPC64 specific operations in ftrace_mprofile.S") 228216716cb5 ("powerpc/ftrace: Refactor ftrace_{regs_}caller") 9bdb2eec3dde ("powerpc/ftrace: Don't use lmw/stmw in ftrace_regs_caller()") 76b372814b08 ("powerpc/ftrace: Style cleanup in ftrace_mprofile.S") fc75f8733798 ("powerpc/ftrace: Have arch_ftrace_get_regs() return NULL unless FL_SAVE_REGS is set") 34d8dac807f0 ("powerpc/ftrace: Also save r1 in ftrace_caller()") 4ee83a2cfbc4 ("powerpc/ftrace: Remove ftrace_32.S") 41315494beed ("powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32") 830213786c49 ("powerpc/ftrace: directly call of function graph tracer by ftrace caller") 0c81ed5ed438 ("powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller") 40b035efe288 ("powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS") c75388a8ceff ("powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") d95bf254be5f ("powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS") 7bdb478c1d15 ("powerpc/ftrace: Simplify PPC32's return_to_handler()") 7875bc9b07cd ("powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32") c545b9f040f3 ("powerpc/inst: Define ppc_inst_t") aebd1fb45c62 ("powerpc: flexible GPR range save/restore macros") 7dfbfb87c243 ("powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32") c93d4f6ecf4b ("powerpc/ftrace: Add module_trampoline_target() for PPC32") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 41a506ef71eb38d94fe133f565c87c3e06ccc072 Mon Sep 17 00:00:00 2001 From: Naveen N Rao <naveen(a)kernel.org> Date: Wed, 21 Jun 2023 10:43:49 +0530 Subject: [PATCH] powerpc/ftrace: Create a dummy stackframe to fix stack unwind With ppc64 -mprofile-kernel and ppc32 -pg, profiling instructions to call into ftrace are emitted right at function entry. The instruction sequence used is minimal to reduce overhead. Crucially, a stackframe is not created for the function being traced. This breaks stack unwinding since the function being traced does not have a stackframe for itself. As such, it never shows up in the backtrace: /sys/kernel/debug/tracing # echo 1 > /proc/sys/kernel/stack_tracer_enabled /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 4144 32 ftrace_call+0x4/0x44 1) 4112 432 get_page_from_freelist+0x26c/0x1ad0 2) 3680 496 __alloc_pages+0x290/0x1280 3) 3184 336 __folio_alloc+0x34/0x90 4) 2848 176 vma_alloc_folio+0xd8/0x540 5) 2672 272 __handle_mm_fault+0x700/0x1cc0 6) 2400 208 handle_mm_fault+0xf0/0x3f0 7) 2192 80 ___do_page_fault+0x3e4/0xbe0 8) 2112 160 do_page_fault+0x30/0xc0 9) 1952 256 data_access_common_virt+0x210/0x220 10) 1696 400 0xc00000000f16b100 11) 1296 384 load_elf_binary+0x804/0x1b80 12) 912 208 bprm_execve+0x2d8/0x7e0 13) 704 64 do_execveat_common+0x1d0/0x2f0 14) 640 160 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 Fix this by having ftrace create a dummy stackframe for the function being traced. With this, backtraces now capture the function being traced: /sys/kernel/debug/tracing # cat stack_trace Depth Size Location (17 entries) ----- ---- -------- 0) 3888 32 _raw_spin_trylock+0x8/0x70 1) 3856 576 get_page_from_freelist+0x26c/0x1ad0 2) 3280 64 __alloc_pages+0x290/0x1280 3) 3216 336 __folio_alloc+0x34/0x90 4) 2880 176 vma_alloc_folio+0xd8/0x540 5) 2704 416 __handle_mm_fault+0x700/0x1cc0 6) 2288 96 handle_mm_fault+0xf0/0x3f0 7) 2192 48 ___do_page_fault+0x3e4/0xbe0 8) 2144 192 do_page_fault+0x30/0xc0 9) 1952 608 data_access_common_virt+0x210/0x220 10) 1344 16 0xc0000000334bbb50 11) 1328 416 load_elf_binary+0x804/0x1b80 12) 912 64 bprm_execve+0x2d8/0x7e0 13) 848 176 do_execveat_common+0x1d0/0x2f0 14) 672 192 sys_execve+0x54/0x70 15) 480 64 system_call_exception+0x138/0x350 16) 416 416 system_call_common+0x160/0x2c4 This results in two additional stores in the ftrace entry code, but produces reliable backtraces. Fixes: 153086644fd1 ("powerpc/ftrace: Add support for -mprofile-kernel ftrace ABI") Cc: stable(a)vger.kernel.org Signed-off-by: Naveen N Rao <naveen(a)kernel.org> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20230621051349.759567-1-naveen@kernel.org diff --git a/arch/powerpc/kernel/trace/ftrace_mprofile.S b/arch/powerpc/kernel/trace/ftrace_mprofile.S index ffb1db386849..1f7d86de1538 100644 --- a/arch/powerpc/kernel/trace/ftrace_mprofile.S +++ b/arch/powerpc/kernel/trace/ftrace_mprofile.S @@ -33,6 +33,9 @@ * and then arrange for the ftrace function to be called. */ .macro ftrace_regs_entry allregs + /* Create a minimal stack frame for representing B */ + PPC_STLU r1, -STACK_FRAME_MIN_SIZE(r1) + /* Create our stack frame + pt_regs */ PPC_STLU r1,-SWITCH_FRAME_SIZE(r1) @@ -42,7 +45,7 @@ #ifdef CONFIG_PPC64 /* Save the original return address in A's stack frame */ - std r0, LRSAVE+SWITCH_FRAME_SIZE(r1) + std r0, LRSAVE+SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE(r1) /* Ok to continue? */ lbz r3, PACA_FTRACE_ENABLED(r13) cmpdi r3, 0 @@ -77,6 +80,8 @@ mflr r7 /* Save it as pt_regs->nip */ PPC_STL r7, _NIP(r1) + /* Also save it in B's stackframe header for proper unwind */ + PPC_STL r7, LRSAVE+SWITCH_FRAME_SIZE(r1) /* Save the read LR in pt_regs->link */ PPC_STL r0, _LINK(r1) @@ -142,7 +147,7 @@ #endif /* Pop our stack frame */ - addi r1, r1, SWITCH_FRAME_SIZE + addi r1, r1, SWITCH_FRAME_SIZE+STACK_FRAME_MIN_SIZE #ifdef CONFIG_LIVEPATCH_64 /* Based on the cmpd above, if the NIP was altered handle livepatch */

2 years

2
2
0 0

[PATCH v5] block: add check that partition length needs to be aligned with block size

by Min Li

Before calling add partition or resize partition, there is no check on whether the length is aligned with the logical block size. If the logical block size of the disk is larger than 512 bytes, then the partition size maybe not the multiple of the logical block size, and when the last sector is read, bio_truncate() will adjust the bio size, resulting in an IO error if the size of the read command is smaller than the logical block size.If integrity data is supported, this will also result in a null pointer dereference when calling bio_integrity_free. Cc: stable(a)vger.kernel.org Signed-off-by: Min Li <min15.li(a)samsung.com> Reviewed-by: Damien Le Moal <dlemoal(a)kernel.org> Reviewed-by: Chaitanya Kulkarni <kch(a)nvidia.com> --- Changes from v1: - Add a space after /* and before */. - Move length alignment check before the "start = p.start >> SECTOR_SHIFT" - Move check for p.start being aligned together with this length alignment check. Changes from v2: - Add the assignment on the first line and merge the two lines into one. Changes from v3: - Change the blksz to unsigned int. - Add check if p.start and p.length are negative. Changes from v4: - Remove the local variable blksz and use bdev_logical_block_size(bdev) directly. --- block/ioctl.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/block/ioctl.c b/block/ioctl.c index 3be11941fb2d..0e8723c1a807 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -18,7 +18,7 @@ static int blkpg_do_ioctl(struct block_device *bdev, { struct gendisk *disk = bdev->bd_disk; struct blkpg_partition p; - long long start, length; + sector_t start, length; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -33,14 +33,17 @@ static int blkpg_do_ioctl(struct block_device *bdev, if (op == BLKPG_DEL_PARTITION) return bdev_del_partition(disk, p.pno); + if (p.start < 0 || p.length <= 0 || p.start + p.length < 0) + return -EINVAL; + /* Check that the partition is aligned to the block size */ + if (!IS_ALIGNED(p.start | p.length, bdev_logical_block_size(bdev))) + return -EINVAL; + start = p.start >> SECTOR_SHIFT; length = p.length >> SECTOR_SHIFT; switch (op) { case BLKPG_ADD_PARTITION: - /* check if partition is aligned to blocksize */ - if (p.start & (bdev_logical_block_size(bdev) - 1)) - return -EINVAL; return bdev_add_partition(disk, p.pno, start, length); case BLKPG_RESIZE_PARTITION: return bdev_resize_partition(disk, p.pno, start, length); -- 2.34.1

2 years

4
4
0 0

[RESEND PATCH] Revert "fuse: Apply flags2 only when userspace set the FUSE_INIT_EXT"

by André Draszik

From: André Draszik <andre.draszik(a)linaro.org> This reverts commit 3066ff93476c35679cb07a97cce37d9bb07632ff. This patch breaks all existing userspace by requiring updates as mentioned in the commit message, which is not allowed. Revert to restore compatibility with existing userspace implementations. Cc: Bernd Schubert <bschubert(a)ddn.com> Cc: Miklos Szeredi <mszeredi(a)redhat.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: André Draszik <andre.draszik(a)linaro.org> --- resend because of missing people in Cc --- fs/fuse/inode.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 549358ffea8b..0b966b0e0962 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1132,10 +1132,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args, process_init_limits(fc, arg); if (arg->minor >= 6) { - u64 flags = arg->flags; - - if (flags & FUSE_INIT_EXT) - flags |= (u64) arg->flags2 << 32; + u64 flags = arg->flags | (u64) arg->flags2 << 32; ra_pages = arg->max_readahead / PAGE_SIZE; if (flags & FUSE_ASYNC_READ) -- 2.40.1

2 years

10
29
0 0

[REGRESSION]: nouveau: Asynchronous wait on fence

by Owen T. Heisler

#regzbot introduced: d386a4b54607cf6f76e23815c2c9a3abc1d66882 #regzbot link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/180 ## Problem 1. Connect external display to DVI port on dock and run X with both displays in use. 2. Wait hours or days. 3. Suddenly the secondary Nvidia-connected display turns off and X stops responding to keyboard/mouse input. In *some* cases it is possible to switch to a virtual TTY with Ctrl+Alt+Fn and log in there. In any case, shutdown/reboot after this happens is *usually* not successful (forced power-off is required). This started happening after the upgrade to Debian bullseye, and the problem remains with Debian bookworm. ## Reproducing Unfortunately I have not found a way to reliably reproduce this bug. An affected kernel version will crash infrequently, perhaps monthly with "regular workstation use". With the more recent v6.1 kernels the crash seems to occur more frequently, perhaps within two days, if the out-of-tree acpi-call module (Debian's [acpi-call-dkms](https://packages.debian.org/acpi-call-dkms) package) is installed. For the logs below that are from tainted kernels, that out-of-tree module is why. The latest crash with the same `Asynchronous wait on fence` error occured on Debian stock linux-image-6.1.0-13-amd64 v6.1.55-1 with /proc/sys/kernel/tainted == 0. I have failed to trigger this crash by using 3D acceleration, [Piglit](https://piglit.freedesktop.org/) tests, or other stress tests. ## Errors Common log errors (see more log data [below](#user-content-logs)): - `Asynchronous wait on fence nouveau:systemd-logind` - `RIP: 0010:gf119_head_state+0xdd/0x110 [nouveau]` - `nouveau 0000:01:00.0: timer: stalled at ffffffffffffffff` (or `tmr: stalled at ffffffffffffffff`) - `Fixing recursive fault but reboot is needed!` ## Kernel versions At least mainline, v6.1, v5.15, v5.10, v5.4, and v4.19 series all seem to be affected by this bug. Here are the results of testing various specific revisions: - v6.1.51 bad - v5.15.130 bad - v5.14-rc6-2-g6eaa1f3c59a7 good - v5.10.194 bad - v5.4.256 bad - v4.19.294 bad - v4.19.289 bad - v4.19.255 bad - v4.19.234-18-gd60f27d6ff8a bad - v4.19.232 bad - v4.19.205-27-gd386a4b54607 bad - v4.19.205-26-ga78f93b9bba1 good - v4.19.205 good - v4.19.200 good - v4.19.180 good The `git bisect` result from this: ``` d386a4b54607cf6f76e23815c2c9a3abc1d66882 is the first bad commit ``` ## Kernel configuration and compilation Various minimal kernel configs have not exhibited the bug, so I am testing with a Debian stock config as follows. This applies to all tests. - Start with the stock config from Debian `linux-image-4.19.0-18-amd64_4.19.208-1` at <https://gitlab.freedesktop.org/drm/nouveau/uploads/9c0a82bc8a80b368c2cc38d2…> - make olddefconfig - make clean - scripts/config --disable DEBUG_INFO \ --set-str LOCALVERSION -$mylocalversion \ --enable LOCALVERSION_AUTO \ --set-str SYSTEM_TRUSTED_KEYS '' - make -j$(nproc --all) bindeb-pkg ## Kernel boot parameters The `nouveau.config=NvClkMode=15` parameter is in use for all tests. Omitting this parameter does not seem to change the behavior. ## Hardware - ThinkPad W530 - Dock with Nvidia-connected DVI ports - Secondary display connected via DVI - Nvidia Optimus GPU switching system $ lspci | grep -i vga 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107GLM [Quadro K2000M] (rev a1) ## Logs Here is some log data I have been able to capture. dmesg output from Debian bullseye with current nouveau-next commit 9622bcb7c72b230d64b7f7d2f9505e17214f3597. The `Asynchronous wait on fence` happened approximately when the display turned off. The traces happened later, triggered by running xrandr: ``` [ 0.000000] Linux version 5.19.0-rc6-00126-g9622bcb7c72b (user@hostname) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #23 SMP PREEMPT_DYNAMIC Thu Sep 15 19:52:44 CDT 2022 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.19.0-rc6-00126-g9622bcb7c72b root=/dev/sda1 ro quiet intel_iommu=on,igfx_off l1tf=full,force mds=full,nosmt mitigations=auto,nosmt nosmt=force nouveau.config=NvClkMode=15 log_buf_len=1M [ 0.025823] Kernel command line: BOOT_IMAGE=/vmlinuz-5.19.0-rc6-00126-g9622bcb7c72b root=/dev/sda1 ro quiet intel_iommu=on,igfx_off l1tf=full,force mds=full,nosmt mitigations=auto,nosmt nosmt=force nouveau.config=NvClkMode=15 log_buf_len=1M [ 0.216222] pci 0000:00:02.0: vgaarb: setting as boot VGA device [ 0.216222] pci 0000:00:02.0: vgaarb: bridge control possible [ 0.216222] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 0.216222] pci 0000:01:00.0: vgaarb: bridge control possible [ 0.216222] pci 0000:01:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none [ 0.216222] vgaarb: loaded [ 0.439878] efifb: framebuffer at 0xe0000000, using 1216k, total 1216k [ 0.439991] Console: switching to colour frame buffer device 80x30 [ 0.440316] fb0: EFI VGA frame buffer device [ 22.341905] nvidiafb 0000:01:00.0: enabling device (0000 -> 0003) [ 22.341968] nvidiafb: Device ID: 10de0ffb [ 22.341970] nvidiafb: unknown NV_ARCH [ 22.387290] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client [ 22.593132] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG_.VID_ handle [ 22.596697] nouveau 0000:01:00.0: NVIDIA GK107 (0e73b0a2) [ 22.616630] nouveau 0000:01:00.0: bios: version 80.07.31.00.18 [ 22.766409] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input10 [ 22.766428] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input11 [ 22.766443] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input12 [ 22.766458] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input13 [ 22.766473] input: HDA NVidia HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input14 [ 22.766487] input: HDA NVidia HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15 [ 22.864239] i915 0000:00:02.0: vgaarb: deactivate vga console [ 22.864733] nouveau 0000:01:00.0: fb: 2048 MiB DDR3 [ 22.948131] vga_switcheroo: enabled [ 22.948150] nouveau 0000:01:00.0: DRM: VRAM: 2048 MiB [ 22.948153] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB [ 22.948155] nouveau 0000:01:00.0: DRM: TMDS table version 2.0 [ 22.948157] nouveau 0000:01:00.0: DRM: DCB version 4.0 [ 22.948159] nouveau 0000:01:00.0: DRM: DCB outp 00: 01800f23 00010034 [ 22.948161] nouveau 0000:01:00.0: DRM: DCB outp 01: 02811f00 00000000 [ 22.948162] nouveau 0000:01:00.0: DRM: DCB outp 02: 02822fa6 0f420010 [ 22.948164] nouveau 0000:01:00.0: DRM: DCB outp 03: 02822f62 00020010 [ 22.948165] nouveau 0000:01:00.0: DRM: DCB outp 04: 04833fb6 0f220010 [ 22.948166] nouveau 0000:01:00.0: DRM: DCB outp 05: 04833f72 00020010 [ 22.948168] nouveau 0000:01:00.0: DRM: DCB outp 06: 08844fc6 0f220010 [ 22.948169] nouveau 0000:01:00.0: DRM: DCB outp 07: 08844f82 00020010 [ 22.948171] nouveau 0000:01:00.0: DRM: DCB conn 00: 00000040 [ 22.948172] nouveau 0000:01:00.0: DRM: DCB conn 01: 00000100 [ 22.948173] nouveau 0000:01:00.0: DRM: DCB conn 02: 00010246 [ 22.948174] nouveau 0000:01:00.0: DRM: DCB conn 03: 00020346 [ 22.948175] nouveau 0000:01:00.0: DRM: DCB conn 04: 01000446 [ 22.949194] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies [ 23.008402] snd_hda_intel 0000:01:00.1: bound 0000:01:00.0 (ops nv50_audio_component_bind_ops [nouveau]) [ 23.220786] nouveau 0000:01:00.0: DRM: allocated 1920x1080 fb: 0xa0000, bo 000000009aeb49bb [ 23.997620] Console: switching to colour frame buffer device 240x67 [ 24.015709] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device [ 24.032487] nouveau 0000:01:00.0: [drm] fb1: nouveaudrmfb frame buffer device [ 24.041590] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0 [21256.700873] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem [21256.700881] nouveau 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none [44642.971045] Asynchronous wait on fence nouveau:systemd-logind[1162]:2a6c4 timed out (hint:submit_notify [i915]) [44725.091268] ------------[ cut here ]------------ [44725.091271] WARNING: CPU: 4 PID: 189933 at drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c:78 gf119_head_state+0xdd/0x110 [nouveau] [44725.091350] Modules linked in: ufs(E) qnx4(E) hfsplus(E) hfs(E) minix(E) ntfs(E) msdos(E) jfs(E) xfs(E) uas(E) usb_storage(E) acpi_call(OE) ctr(E) ccm(E) tun(E) binfmt_misc(E) btusb(E) btrtl(E) btbcm(E) btintel(E) bluetooth(E) jitterentropy_rng(E) sha512_generic(E) drbg(E) uvcvideo(E) ansi_cprng(E) videobuf2_vmalloc(E) videobuf2_memops(E) videobuf2_v4l2(E) videobuf2_common(E) ecdh_generic(E) ecc(E) videodev(E) mc(E) intel_rapl_msr(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) snd_ctl_led(E) coretemp(E) snd_hda_codec_realtek(E) kvm_intel(E) nls_ascii(E) snd_hda_codec_generic(E) nls_cp437(E) kvm(E) irqbypass(E) vfat(E) pktcdvd(E) fat(E) rapl(E) intel_cstate(E) iwldvm(E) mac80211(E) wmi_bmof(E) libarc4(E) mei_wdt(E) mei_hdcp(E) iwlwifi(E) joydev(E) evdev(E) intel_uncore(E) i915(E) snd_hda_codec_hdmi(E) nouveau(E) efi_pstore(E) iTCO_wdt(E) drm_ttm_helper(E) mxm_wmi(E) drm_buddy(E) intel_pmc_bxt(E) iTCO_vendor_support(E) at24(E) pcspkr(E) serio_raw(E) sg(E) watchdog(E) [44725.091393] snd_hda_intel(E) snd_intel_dspcfg(E) cfg80211(E) drm_display_helper(E) snd_hda_codec(E) jmb38x_ms(E) snd_hwdep(E) drm_kms_helper(E) memstick(E) thinkpad_acpi(E) snd_hda_core(E) syscopyarea(E) ac(E) nvidiafb(E) nvram(E) ledtrig_audio(E) platform_profile(E) snd_pcm(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) vgastate(E) wmi(E) fb_ddc(E) rfkill(E) snd_timer(E) battery(E) cec(E) mei_me(E) snd(E) soundcore(E) ttm(E) video(E) mei(E) i2c_algo_bit(E) button(E) nft_ct(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) nf_tables(E) nfnetlink(E) firewire_sbp2(E) drm(E) fuse(E) configfs(E) efivarfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) btrfs(E) blake2b_generic(E) xor(E) raid6_pq(E) zstd_compress(E) libcrc32c(E) crc32c_generic(E) dm_crypt(E) dm_mod(E) hid_generic(E) usbhid(E) hid(E) sd_mod(E) t10_pi(E) crc64_rocksoft_generic(E) crc64_rocksoft(E) crc_t10dif(E) sr_mod(E) crct10dif_generic(E) cdrom(E) crc64(E) crct10dif_pclmul(E) [44725.091439] crct10dif_common(E) crc32_pclmul(E) crc32c_intel(E) ghash_clmulni_intel(E) ahci(E) libahci(E) aesni_intel(E) libaes(E) crypto_simd(E) psmouse(E) xhci_pci(E) firewire_ohci(E) xhci_hcd(E) sdhci_pci(E) cqhci(E) libata(E) sdhci(E) cryptd(E) i2c_i801(E) scsi_mod(E) i2c_smbus(E) scsi_common(E) lpc_ich(E) ehci_pci(E) ehci_hcd(E) firewire_core(E) mmc_core(E) crc_itu_t(E) e1000e(E) usbcore(E) ptp(E) usb_common(E) pps_core(E) [44725.091460] CPU: 4 PID: 189933 Comm: kworker/4:1 Tainted: G OE 5.19.0-rc6-00126-g9622bcb7c72b #23 [44725.091463] Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 [44725.091464] Workqueue: events drm_mode_rmfb_work_fn [drm] [44725.091499] RIP: 0010:gf119_head_state+0xdd/0x110 [nouveau] [44725.091560] Code: 8d bb 04 04 64 00 89 45 10 49 03 7c 24 78 e8 5a 34 c7 dd c1 e8 06 89 c2 83 e2 0f 83 fa 05 74 28 77 0f a8 0d 74 19 c6 45 14 12 <0f> 0b 5b 5d 41 5c c3 83 fa 06 75 f0 5b c6 45 14 1e 5d 41 5c c3 5b [44725.091562] RSP: 0018:ffffabcf4c2bf978 EFLAGS: 00010006 [44725.091564] RAX: 0000000003ffffff RBX: 0000000000000000 RCX: 0000000000000028 [44725.091565] RDX: 000000000000000f RSI: ffff94d1779f8748 RDI: ffffabcf42640404 [44725.091566] RBP: ffff94d1779f8748 R08: ffff94d1779f8720 R09: ffffabcf4c2bfb80 [44725.091567] R10: ffff94d17790b000 R11: 0000000000000004 R12: ffff94d1778ee800 [44725.091568] R13: 0000000000000028 R14: ffffabcf4c2bfa20 R15: 0000000000000000 [44725.091569] FS: 0000000000000000(0000) GS:ffff94d85df00000(0000) knlGS:0000000000000000 [44725.091571] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [44725.091572] CR2: 00007f1e77b99430 CR3: 000000013564a003 CR4: 00000000001706e0 [44725.091573] Call Trace: [44725.091576] <TASK> [44725.091578] nvkm_head_mthd_scanoutpos+0x74/0xf0 [nouveau] [44725.091637] nvkm_ioctl+0xd7/0x170 [nouveau] [44725.091675] nvif_object_mthd+0x161/0x200 [nouveau] [44725.091711] nouveau_display_scanoutpos+0x91/0x150 [nouveau] [44725.091769] ? nouveau_display_vblank_disable+0x20/0x20 [nouveau] [44725.091825] drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x147/0x350 [drm] [44725.091854] drm_get_last_vbltimestamp+0xaa/0xc0 [drm] [44725.091879] drm_update_vblank_count+0x88/0x3c0 [drm] [44725.091905] drm_vblank_enable+0x14b/0x180 [drm] [44725.091930] drm_vblank_get+0x95/0xe0 [drm] [44725.091955] nv50_disp_atomic_commit_tail+0x3a0/0x860 [nouveau] [44725.092015] ? wait_for_completion_interruptible+0x20/0x40 [44725.092020] nv50_disp_atomic_commit+0x17d/0x1a0 [nouveau] [44725.092078] drm_atomic_commit+0x94/0xc0 [drm] [44725.092103] ? drm_plane_get_damage_clips.cold+0x1c/0x1c [drm] [44725.092130] drm_framebuffer_remove+0x451/0x4f0 [drm] [44725.092155] drm_mode_rmfb_work_fn+0x73/0x90 [drm] [44725.092178] process_one_work+0x1e5/0x3b0 [44725.092182] ? rescuer_thread+0x390/0x390 [44725.092185] worker_thread+0x50/0x3a0 [44725.092188] ? rescuer_thread+0x390/0x390 [44725.092190] kthread+0xd8/0x100 [44725.092193] ? kthread_complete_and_exit+0x20/0x20 [44725.092195] ret_from_fork+0x22/0x30 [44725.092199] </TASK> [44725.092200] ---[ end trace 0000000000000000 ]--- [44725.092233] ------------[ cut here ]------------ [44725.092234] WARNING: CPU: 4 PID: 189933 at drivers/gpu/drm/nouveau/nvkm/engine/disp/headgf119.c:78 gf119_head_state+0xdd/0x110 [nouveau] [44725.092294] Modules linked in: ufs(E) qnx4(E) hfsplus(E) hfs(E) minix(E) ntfs(E) msdos(E) jfs(E) xfs(E) uas(E) usb_storage(E) acpi_call(OE) ctr(E) ccm(E) tun(E) binfmt_misc(E) btusb(E) btrtl(E) btbcm(E) btintel(E) bluetooth(E) jitterentropy_rng(E) sha512_generic(E) drbg(E) uvcvideo(E) ansi_cprng(E) videobuf2_vmalloc(E) videobuf2_memops(E) videobuf2_v4l2(E) videobuf2_common(E) ecdh_generic(E) ecc(E) videodev(E) mc(E) intel_rapl_msr(E) intel_rapl_common(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) snd_ctl_led(E) coretemp(E) snd_hda_codec_realtek(E) kvm_intel(E) nls_ascii(E) snd_hda_codec_generic(E) nls_cp437(E) kvm(E) irqbypass(E) vfat(E) pktcdvd(E) fat(E) rapl(E) intel_cstate(E) iwldvm(E) mac80211(E) wmi_bmof(E) libarc4(E) mei_wdt(E) mei_hdcp(E) iwlwifi(E) joydev(E) evdev(E) intel_uncore(E) i915(E) snd_hda_codec_hdmi(E) nouveau(E) efi_pstore(E) iTCO_wdt(E) drm_ttm_helper(E) mxm_wmi(E) drm_buddy(E) intel_pmc_bxt(E) iTCO_vendor_support(E) at24(E) pcspkr(E) serio_raw(E) sg(E) watchdog(E) [44725.092333] snd_hda_intel(E) snd_intel_dspcfg(E) cfg80211(E) drm_display_helper(E) snd_hda_codec(E) jmb38x_ms(E) snd_hwdep(E) drm_kms_helper(E) memstick(E) thinkpad_acpi(E) snd_hda_core(E) syscopyarea(E) ac(E) nvidiafb(E) nvram(E) ledtrig_audio(E) platform_profile(E) snd_pcm(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) vgastate(E) wmi(E) fb_ddc(E) rfkill(E) snd_timer(E) battery(E) cec(E) mei_me(E) snd(E) soundcore(E) ttm(E) video(E) mei(E) i2c_algo_bit(E) button(E) nft_ct(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) nf_tables(E) nfnetlink(E) firewire_sbp2(E) drm(E) fuse(E) configfs(E) efivarfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) btrfs(E) blake2b_generic(E) xor(E) raid6_pq(E) zstd_compress(E) libcrc32c(E) crc32c_generic(E) dm_crypt(E) dm_mod(E) hid_generic(E) usbhid(E) hid(E) sd_mod(E) t10_pi(E) crc64_rocksoft_generic(E) crc64_rocksoft(E) crc_t10dif(E) sr_mod(E) crct10dif_generic(E) cdrom(E) crc64(E) crct10dif_pclmul(E) [44725.092372] crct10dif_common(E) crc32_pclmul(E) crc32c_intel(E) ghash_clmulni_intel(E) ahci(E) libahci(E) aesni_intel(E) libaes(E) crypto_simd(E) psmouse(E) xhci_pci(E) firewire_ohci(E) xhci_hcd(E) sdhci_pci(E) cqhci(E) libata(E) sdhci(E) cryptd(E) i2c_i801(E) scsi_mod(E) i2c_smbus(E) scsi_common(E) lpc_ich(E) ehci_pci(E) ehci_hcd(E) firewire_core(E) mmc_core(E) crc_itu_t(E) e1000e(E) usbcore(E) ptp(E) usb_common(E) pps_core(E) [44725.092389] CPU: 4 PID: 189933 Comm: kworker/4:1 Tainted: G W OE 5.19.0-rc6-00126-g9622bcb7c72b #23 [44725.092391] Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 [44725.092392] Workqueue: events drm_mode_rmfb_work_fn [drm] [44725.092418] RIP: 0010:gf119_head_state+0xdd/0x110 [nouveau] [44725.092476] Code: 8d bb 04 04 64 00 89 45 10 49 03 7c 24 78 e8 5a 34 c7 dd c1 e8 06 89 c2 83 e2 0f 83 fa 05 74 28 77 0f a8 0d 74 19 c6 45 14 12 <0f> 0b 5b 5d 41 5c c3 83 fa 06 75 f0 5b c6 45 14 1e 5d 41 5c c3 5b [44725.092478] RSP: 0018:ffffabcf4c2bf9b0 EFLAGS: 00010006 [44725.092480] RAX: 0000000003ffffff RBX: 0000000000000000 RCX: 0000000000000028 [44725.092481] RDX: 000000000000000f RSI: ffff94d1779f8748 RDI: ffffabcf42640404 [44725.092482] RBP: ffff94d1779f8748 R08: ffff94d1779f8720 R09: ffffabcf4c2bfbb8 [44725.092483] R10: ffff94d17790b000 R11: 000000000000065e R12: ffff94d1778ee800 [44725.092484] R13: 0000000000000028 R14: ffffabcf4c2bfa58 R15: 0000000000000000 [44725.092485] FS: 0000000000000000(0000) GS:ffff94d85df00000(0000) knlGS:0000000000000000 [44725.092487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [44725.092488] CR2: 00007f1e77b99430 CR3: 000000013564a003 CR4: 00000000001706e0 [44725.092489] Call Trace: [44725.092490] <TASK> [44725.092491] nvkm_head_mthd_scanoutpos+0x74/0xf0 [nouveau] [44725.092549] nvkm_ioctl+0xd7/0x170 [nouveau] [44725.092586] ? nvif_object_unmap_handle+0x1f/0x80 [nouveau] [44725.092621] nvif_object_mthd+0x161/0x200 [nouveau] [44725.092656] nouveau_display_scanoutpos+0x91/0x150 [nouveau] [44725.092713] ? nouveau_display_vblank_disable+0x20/0x20 [nouveau] [44725.092769] drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x147/0x350 [drm] [44725.092798] drm_get_last_vbltimestamp+0xaa/0xc0 [drm] [44725.092824] drm_update_vblank_count+0x88/0x3c0 [drm] [44725.092849] ? nv50_dmac_kick+0xdb/0x140 [nouveau] [44725.092906] drm_crtc_accurate_vblank_count+0x3e/0xc0 [drm] [44725.092932] nv50_disp_atomic_commit_tail+0x6ee/0x860 [nouveau] [44725.092990] ? wait_for_completion_interruptible+0x20/0x40 [44725.092993] nv50_disp_atomic_commit+0x17d/0x1a0 [nouveau] [44725.093049] drm_atomic_commit+0x94/0xc0 [drm] [44725.093073] ? drm_plane_get_damage_clips.cold+0x1c/0x1c [drm] [44725.093101] drm_framebuffer_remove+0x451/0x4f0 [drm] [44725.093125] drm_mode_rmfb_work_fn+0x73/0x90 [drm] [44725.093149] process_one_work+0x1e5/0x3b0 [44725.093152] ? rescuer_thread+0x390/0x390 [44725.093155] worker_thread+0x50/0x3a0 [44725.093157] ? rescuer_thread+0x390/0x390 [44725.093160] kthread+0xd8/0x100 [44725.093162] ? kthread_complete_and_exit+0x20/0x20 [44725.093164] ret_from_fork+0x22/0x30 [44725.093167] </TASK> [44725.093168] ---[ end trace 0000000000000000 ]--- ``` Console output from Debian bullseye with nouveau-next commit 9622bcb7c72b230d64b7f7d2f9505e17214f3597: https://gitlab.freedesktop.org/drm/nouveau/uploads/0a29daa571548849b3b85183… dmesg output from Debian bullseye with nouveau-next commit 9622bcb7c72b230d64b7f7d2f9505e17214f3597 and `nouveau.config=NvClkMode=15` parameter removed. The system successfully rebooted in this particular case: ``` [ 0.000000] Linux version 5.19.0-rc6-00126-g9622bcb7c72b (user@hostname) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #14 SMP PREEMPT_DYNAMIC Mon Aug 15 15:13:55 CDT 2022 [ 0.216855] pci 0000:00:02.0: vgaarb: setting as boot VGA device [ 0.216855] pci 0000:00:02.0: vgaarb: bridge control possible [ 0.216855] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 0.216855] pci 0000:01:00.0: vgaarb: bridge control possible [ 0.216855] pci 0000:01:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none [ 0.216855] vgaarb: loaded [ 0.437932] efifb: framebuffer at 0xe0000000, using 1216k, total 1216k [ 0.438046] Console: switching to colour frame buffer device 80x30 [ 0.438258] fb0: EFI VGA frame buffer device [ 7.279534] nvidiafb 0000:01:00.0: enabling device (0000 -> 0003) [ 7.279577] nvidiafb: Device ID: 10de0ffb [ 7.279579] nvidiafb: unknown NV_ARCH [ 7.281545] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client [ 7.530883] i915 0000:00:02.0: vgaarb: deactivate vga console [ 7.629436] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG_.VID_ handle [ 7.629486] nouveau 0000:01:00.0: NVIDIA GK107 (0e73b0a2) [ 7.631926] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input10 [ 7.632587] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input11 [ 7.632628] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input12 [ 7.635341] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input13 [ 7.635395] input: HDA NVidia HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input14 [ 7.635427] input: HDA NVidia HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15 [ 7.650038] nouveau 0000:01:00.0: bios: version 80.07.31.00.18 [ 7.876402] nouveau 0000:01:00.0: fb: 2048 MiB DDR3 [ 7.951336] vga_switcheroo: enabled [ 7.951355] nouveau 0000:01:00.0: DRM: VRAM: 2048 MiB [ 7.951356] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB [ 7.951360] nouveau 0000:01:00.0: DRM: TMDS table version 2.0 [ 7.951361] nouveau 0000:01:00.0: DRM: DCB version 4.0 [ 7.951363] nouveau 0000:01:00.0: DRM: DCB outp 00: 01800f23 00010034 [ 7.951364] nouveau 0000:01:00.0: DRM: DCB outp 01: 02811f00 00000000 [ 7.951366] nouveau 0000:01:00.0: DRM: DCB outp 02: 02822fa6 0f420010 [ 7.951367] nouveau 0000:01:00.0: DRM: DCB outp 03: 02822f62 00020010 [ 7.951368] nouveau 0000:01:00.0: DRM: DCB outp 04: 04833fb6 0f220010 [ 7.951369] nouveau 0000:01:00.0: DRM: DCB outp 05: 04833f72 00020010 [ 7.951370] nouveau 0000:01:00.0: DRM: DCB outp 06: 08844fc6 0f220010 [ 7.951371] nouveau 0000:01:00.0: DRM: DCB outp 07: 08844f82 00020010 [ 7.951373] nouveau 0000:01:00.0: DRM: DCB conn 00: 00000040 [ 7.951374] nouveau 0000:01:00.0: DRM: DCB conn 01: 00000100 [ 7.951375] nouveau 0000:01:00.0: DRM: DCB conn 02: 00010246 [ 7.951376] nouveau 0000:01:00.0: DRM: DCB conn 03: 00020346 [ 7.951377] nouveau 0000:01:00.0: DRM: DCB conn 04: 01000446 [ 7.953098] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies [ 8.012492] snd_hda_intel 0000:01:00.1: bound 0000:01:00.0 (ops nv50_audio_component_bind_ops [nouveau]) [ 8.242713] nouveau 0000:01:00.0: DRM: allocated 1920x1080 fb: 0xa0000, bo 00000000e60224d3 [ 8.792644] Console: switching to colour frame buffer device 240x67 [ 8.813027] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device [ 8.813303] nouveau 0000:01:00.0: [drm] fb1: nouveaudrmfb frame buffer device [ 8.840267] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1 [ 672.057091] Asynchronous wait on fence nouveau:systemd-logind[1082]:25e48 timed out (hint:submit_notify [i915]) ``` System log output from Debian bullseye with 5.10.40-1~bpo10+1 kernel: ``` Aug 10 23:24:58 myhost kernel: Asynchronous wait on fence nouveau:systemd-logind[1138]:35d41a timed out (hint:submit_notify [i915]) Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 0 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 0 PID: 2082 Comm: Xorg Not tainted 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff958 EFLAGS: 00010282 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e218a00 RDI: ffff913e9e218a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b290 Aug 10 23:24:59 myhost kernel: R10: 0000000001983260 R11: ffffa41e00cff760 R12: ffff913781fac000 Aug 10 23:24:59 myhost kernel: R13: 0000000000000000 R14: 0000000000000001 R15: 000000003faaffff Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e200000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 00007f86540c6000 CR3: 0000000147210006 CR4: 00000000001706f0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_power+0x6f/0xe0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0x45/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_modeset_unlock+0x16/0x40 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bcc70 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bcc70 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000563c51d62c00 Aug 10 23:24:59 myhost kernel: R10: 00007f4603086b80 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bcc70 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad09e ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 0 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 0 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff9a0 EFLAGS: 00010286 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e218a00 RDI: ffff913e9e218a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b2c1 Aug 10 23:24:59 myhost kernel: R10: 0000000001986110 R11: ffffa41e00cff7a8 R12: ffff913783e2c420 Aug 10 23:24:59 myhost kernel: R13: ffff913781fac000 R14: 0000000000000011 R15: 0000000000000008 Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e200000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 00007f86540c6000 CR3: 0000000147210006 CR4: 00000000001706f0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0x45/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_modeset_unlock+0x16/0x40 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bcc70 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bcc70 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000563c51d62c00 Aug 10 23:24:59 myhost kernel: R10: 00007f4603086b80 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bcc70 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad09f ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 0 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 0 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff958 EFLAGS: 00010282 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e218a00 RDI: ffff913e9e218a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b2f1 Aug 10 23:24:59 myhost kernel: R10: 0000000001988fc0 R11: ffffa41e00cff760 R12: ffff913781fac000 Aug 10 23:24:59 myhost kernel: R13: 0000000000000001 R14: 0000000000000001 R15: 000000003faaffff Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e200000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 00007f86540c6000 CR3: 0000000147210006 CR4: 00000000001706f0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_power+0x6f/0xe0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0xaa/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_modeset_unlock+0x16/0x40 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bcc70 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bcc70 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000563c51d62c00 Aug 10 23:24:59 myhost kernel: R10: 00007f4603086b80 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bcc70 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad0a0 ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 0 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 0 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff9a0 EFLAGS: 00010286 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e218a00 RDI: ffff913e9e218a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b322 Aug 10 23:24:59 myhost kernel: R10: 000000000198be28 R11: ffffa41e00cff7a8 R12: ffff913783e2c420 Aug 10 23:24:59 myhost kernel: R13: ffff913781fac000 R14: 0000000000000011 R15: 0000000000000008 Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e200000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 00007f86540c6000 CR3: 0000000147210006 CR4: 00000000001706f0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0xaa/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_modeset_unlock+0x16/0x40 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bcc28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bcc70 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bcc70 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000563c51d62c00 Aug 10 23:24:59 myhost kernel: R10: 00007f4603086b80 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bcc70 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad0a1 ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 6 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 6 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff958 EFLAGS: 00010282 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e398a00 RDI: ffff913e9e398a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b3b2 Aug 10 23:24:59 myhost kernel: R10: 0000000001994610 R11: ffffa41e00cff760 R12: ffff913781fac000 Aug 10 23:24:59 myhost kernel: R13: 0000000000000000 R14: 0000000000000001 R15: 000000003faaffff Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e380000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 000055e0461c3048 CR3: 0000000147210005 CR4: 00000000001706e0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_power+0x6f/0xe0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0x45/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bca38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bca80 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bca80 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000000000000000 Aug 10 23:24:59 myhost kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bca80 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad0a2 ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 6 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 6 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff9a0 EFLAGS: 00010286 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e398a00 RDI: ffff913e9e398a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b3e2 Aug 10 23:24:59 myhost kernel: R10: 00000000019971e8 R11: ffffa41e00cff7a8 R12: ffff913783e2c420 Aug 10 23:24:59 myhost kernel: R13: ffff913781fac000 R14: 0000000000000011 R15: 0000000000000008 Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e380000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 000055e0461c3048 CR3: 0000000147210005 CR4: 00000000001706e0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0x45/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bca38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bca80 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bca80 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000000000000000 Aug 10 23:24:59 myhost kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bca80 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad0a3 ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 6 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 6 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff958 EFLAGS: 00010282 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e398a00 RDI: ffff913e9e398a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b411 Aug 10 23:24:59 myhost kernel: R10: 0000000001999f68 R11: ffffa41e00cff760 R12: ffff913781fac000 Aug 10 23:24:59 myhost kernel: R13: 0000000000000001 R14: 0000000000000001 R15: 000000003faaffff Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e380000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 000055e0461c3048 CR3: 0000000147210005 CR4: 00000000001706e0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_power+0x6f/0xe0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0xaa/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bca38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bca80 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bca80 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000000000000000 Aug 10 23:24:59 myhost kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bca80 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad0a4 ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff Aug 10 23:24:59 myhost kernel: ------------[ cut here ]------------ Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: timeout Aug 10 23:24:59 myhost kernel: WARNING: CPU: 6 PID: 2082 at drivers/gpu/drm/nouveau/nvkm/engine/disp/dacnv50.c:62 nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Modules linked in: cpuid isofs udf ufs qnx4 hfsplus hfs minix msdos jfs xfs nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ctr ccm bridge stp llc tun binfmt_misc btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 jitterentropy_rng videobuf2_common drbg videodev ansi_cprng ecdh_generic mc ecc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp nls_ascii snd_hda_codec_generic kvm_intel iwldvm nls_cp437 vfat pktcdvd mei_wdt mei_hdcp fat snd_hda_codec_hdmi mac80211 kvm libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel irqbypass soundwire_generic_allocation nouveau rapl intel_cstate iwlwifi i915 snd_soc_core mxm_wmi evdev snd_compress joydev pcspkr ttm serio_raw intel_uncore soundwire_cadence efi_pstore wmi_bmof snd_hda_codec drm_kms_helper at24 iTCO_wdt cfg80211 mei_me sg intel_pmc_bxt snd_hda_core iTCO_vendor_support watchdog snd_hwdep Aug 10 23:24:59 myhost kernel: soundwire_bus jmb38x_ms thinkpad_acpi snd_pcm memstick nvram cec snd_timer ledtrig_audio mei i2c_algo_bit snd soundcore ac rfkill button nf_tables firewire_sbp2 parport_pc ppdev nfnetlink lp drm parport fuse configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic algif_skcipher af_alg dm_crypt dm_mod sd_mod sr_mod t10_pi cdrom crc_t10dif crct10dif_generic hid_generic usbhid hid mmc_block crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel libata libaes crypto_simd cryptd psmouse glue_helper scsi_mod i2c_i801 i2c_smbus lpc_ich sdhci_pci cqhci firewire_ohci xhci_pci sdhci xhci_hcd firewire_core mmc_core crc_itu_t ehci_pci ehci_hcd e1000e usbcore ptp pps_core usb_common wmi battery video Aug 10 23:24:59 myhost kernel: CPU: 6 PID: 2082 Comm: Xorg Tainted: G W 5.10.0-0.bpo.7-amd64 #1 Debian 5.10.40-1~bpo10+1 Aug 10 23:24:59 myhost kernel: Hardware name: LENOVO 243857U/243857U, BIOS G5ETB6WW (2.76 ) 09/09/2019 Aug 10 23:24:59 myhost kernel: RIP: 0010:nv50_dac_power_wait+0x98/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: Code: 8b 40 10 48 8b 78 10 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 6a fe 4e ce 48 89 da 48 c7 c7 f1 eb 3f c1 48 89 c6 e8 43 21 74 ce <0f> 0b eb b6 e8 2f 5a 77 ce 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f Aug 10 23:24:59 myhost kernel: RSP: 0018:ffffa41e00cff9a0 EFLAGS: 00010286 Aug 10 23:24:59 myhost kernel: RAX: 0000000000000000 RBX: ffff913780ee96f0 RCX: 0000000000000027 Aug 10 23:24:59 myhost kernel: RDX: 0000000000000027 RSI: ffff913e9e398a00 RDI: ffff913e9e398a08 Aug 10 23:24:59 myhost kernel: RBP: 000000000061a804 R08: 0000000000000000 R09: c00000010001b441 Aug 10 23:24:59 myhost kernel: R10: 000000000199cd80 R11: ffffa41e00cff7a8 R12: ffff913783e2c420 Aug 10 23:24:59 myhost kernel: R13: ffff913781fac000 R14: 0000000000000011 R15: 0000000000000008 Aug 10 23:24:59 myhost kernel: FS: 00007f4602b51a40(0000) GS:ffff913e9e380000(0000) knlGS:0000000000000000 Aug 10 23:24:59 myhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 10 23:24:59 myhost kernel: CR2: 000055e0461c3048 CR3: 0000000147210005 CR4: 00000000001706e0 Aug 10 23:24:59 myhost kernel: Call Trace: Aug 10 23:24:59 myhost kernel: nv50_dac_sense+0xaa/0xd0 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_disp_root_mthd_+0x31c/0x630 [nouveau] Aug 10 23:24:59 myhost kernel: nvkm_ioctl+0xd8/0x170 [nouveau] Aug 10 23:24:59 myhost kernel: nvif_object_mthd+0x108/0x130 [nouveau] Aug 10 23:24:59 myhost kernel: nv50_dac_detect+0x8a/0xc0 [nouveau] Aug 10 23:24:59 myhost kernel: nouveau_connector_detect+0x413/0x530 [nouveau] Aug 10 23:24:59 myhost kernel: drm_helper_probe_detect+0x80/0xa0 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: drm_helper_probe_single_connector_modes+0x637/0x800 [drm_kms_helper] Aug 10 23:24:59 myhost kernel: ? drm_atomic_get_property+0xed/0x630 [drm] Aug 10 23:24:59 myhost kernel: drm_mode_getconnector+0x334/0x420 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl_kernel+0xac/0xf0 [drm] Aug 10 23:24:59 myhost kernel: drm_ioctl+0x211/0x3c0 [drm] Aug 10 23:24:59 myhost kernel: ? drm_connector_property_set_ioctl+0x60/0x60 [drm] Aug 10 23:24:59 myhost kernel: nouveau_drm_ioctl+0x57/0xb0 [nouveau] Aug 10 23:24:59 myhost kernel: __x64_sys_ioctl+0x84/0xc0 Aug 10 23:24:59 myhost kernel: do_syscall_64+0x33/0x80 Aug 10 23:24:59 myhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 Aug 10 23:24:59 myhost kernel: RIP: 0033:0x7f4602fbccc7 Aug 10 23:24:59 myhost kernel: Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 Aug 10 23:24:59 myhost kernel: RSP: 002b:00007ffc3b0bca38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 10 23:24:59 myhost kernel: RAX: ffffffffffffffda RBX: 00007ffc3b0bca80 RCX: 00007f4602fbccc7 Aug 10 23:24:59 myhost kernel: RDX: 00007ffc3b0bca80 RSI: 00000000c05064a7 RDI: 000000000000000d Aug 10 23:24:59 myhost kernel: RBP: 00000000c05064a7 R08: 0000000000000007 R09: 0000000000000000 Aug 10 23:24:59 myhost kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 Aug 10 23:24:59 myhost kernel: R13: 000000000000000d R14: 00007ffc3b0bca80 R15: 0000563c512532f0 Aug 10 23:24:59 myhost kernel: ---[ end trace 1b4c78946a3ad0a5 ]--- Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000a: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000b: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff Aug 10 23:24:59 myhost kernel: nouveau 0000:01:00.0: i2c: aux 000c: begin idle timeout ffffffff ``` dmesg output from Debian bullseye with kernel v4.14.290 (commit b641242202ed8c52030f7b6d8cf15886d3c4fc82): ``` [313595.548625] BUG: unable to handle kernel paging request at ffff8b56fa939ffc [313595.548685] IP: evo_wait+0x56/0x120 [nouveau] [313595.615166] RIP: evo_wait+0x56/0x120 [nouveau] RSP: ffffa1dd03b97a38 ``` Thanks for your help.

2 years

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[PATCH 0/4] cpufreq: Add basic cpufreq scaling for Qualcomm MSM8909

by Stephan Gerhold

Add the necessary definitions to the qcom-cpufreq-nvmem driver to support basic cpufreq scaling on the Qualcomm MSM8909 SoC. In practice the necessary power domains vary depending on the actual PMIC the SoC was combined with. With PM8909 the VDD_APC power domain is shared with VDD_CX so the RPM firmware handles all voltage adjustments, while with PM8916 and PM660 Linux is responsible to do adaptive voltage scaling of a dedicated CPU regulator using CPR. Signed-off-by: Stephan Gerhold <stephan.gerhold(a)kernkonzept.com> --- Stephan Gerhold (4): cpufreq: qcom-nvmem: Enable virtual power domain devices cpufreq: dt: platdev: Add MSM8909 to blocklist dt-bindings: cpufreq: qcom-nvmem: Document MSM8909 cpufreq: qcom-nvmem: Add MSM8909 .../bindings/cpufreq/qcom-cpufreq-nvmem.yaml | 1 + drivers/cpufreq/cpufreq-dt-platdev.c | 1 + drivers/cpufreq/qcom-cpufreq-nvmem.c | 47 +++++++++++++++++++++- 3 files changed, 48 insertions(+), 1 deletion(-) --- base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d change-id: 20230906-msm8909-cpufreq-dff238de9ff3 Best regards, -- Stephan Gerhold <stephan.gerhold(a)kernkonzept.com> Kernkonzept GmbH at Dresden, Germany, HRB 31129, CEO Dr.-Ing. Michael Hohmuth

2 years

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[PATCH] arm64: dts: qcom: sc8280xp-crd: fix eDP phy compatible

by Johan Hovold

The sc8280xp Display Port PHYs can be used in either DP or eDP mode and this is configured using the devicetree compatible string which defaults to DP mode in the SoC dtsi. Override the default compatible string for the CRD eDP PHY node so that the eDP settings are used. Fixes: 4a883a8d80b5 ("arm64: dts: qcom: sc8280xp-crd: Enable EDP") Cc: stable(a)vger.kernel.org # 6.3 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> --- arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts index 772953dc428e..31a2a2d27f4e 100644 --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts @@ -458,6 +458,8 @@ mdss0_dp3_out: endpoint { }; &mdss0_dp3_phy { + compatible = "qcom,sc8280xp-edp-phy"; + vdda-phy-supply = <&vreg_l6b>; vdda-pll-supply = <&vreg_l3b>; -- 2.41.0

2 years

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FAILED: patch "[PATCH] tracing/kprobes: Return EADDRNOTAVAIL when func matches" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.14.y git checkout FETCH_HEAD git cherry-pick -x b022f0c7e404887a7c5229788fc99eff9f9a80d5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023102140-tartly-democrat-140d@gregkh' --subject-prefix 'PATCH 4.14.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From b022f0c7e404887a7c5229788fc99eff9f9a80d5 Mon Sep 17 00:00:00 2001 From: Francis Laniel <flaniel(a)linux.microsoft.com> Date: Fri, 20 Oct 2023 13:42:49 +0300 Subject: [PATCH] tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols When a kprobe is attached to a function that's name is not unique (is static and shares the name with other functions in the kernel), the kprobe is attached to the first function it finds. This is a bug as the function that it is attaching to is not necessarily the one that the user wants to attach to. Instead of blindly picking a function to attach to what is ambiguous, error with EADDRNOTAVAIL to let the user know that this function is not unique, and that the user must use another unique function with an address offset to get to the function they want to attach to. Link: https://lore.kernel.org/all/20231020104250.9537-2-flaniel@linux.microsoft.c… Cc: stable(a)vger.kernel.org Fixes: 413d37d1eb69 ("tracing: Add kprobe-based event tracer") Suggested-by: Masami Hiramatsu <mhiramat(a)kernel.org> Signed-off-by: Francis Laniel <flaniel(a)linux.microsoft.com> Link: https://lore.kernel.org/lkml/20230819101105.b0c104ae4494a7d1f2eea742@kernel… Acked-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 3d7a180a8427..a8fef6ab0872 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -705,6 +705,25 @@ static struct notifier_block trace_kprobe_module_nb = { .priority = 1 /* Invoked after kprobe module callback */ }; +static int count_symbols(void *data, unsigned long unused) +{ + unsigned int *count = data; + + (*count)++; + + return 0; +} + +static unsigned int number_of_same_symbols(char *func_name) +{ + unsigned int count; + + count = 0; + kallsyms_on_each_match_symbol(count_symbols, func_name, &count); + + return count; +} + static int __trace_kprobe_create(int argc, const char *argv[]) { /* @@ -836,6 +855,31 @@ static int __trace_kprobe_create(int argc, const char *argv[]) } } + if (symbol && !strchr(symbol, ':')) { + unsigned int count; + + count = number_of_same_symbols(symbol); + if (count > 1) { + /* + * Users should use ADDR to remove the ambiguity of + * using KSYM only. + */ + trace_probe_log_err(0, NON_UNIQ_SYMBOL); + ret = -EADDRNOTAVAIL; + + goto error; + } else if (count == 0) { + /* + * We can return ENOENT earlier than when register the + * kprobe. + */ + trace_probe_log_err(0, BAD_PROBE_ADDR); + ret = -ENOENT; + + goto error; + } + } + trace_probe_log_set_index(0); if (event) { ret = traceprobe_parse_event_name(&event, &group, gbuf, @@ -1695,6 +1739,7 @@ static int unregister_kprobe_event(struct trace_kprobe *tk) } #ifdef CONFIG_PERF_EVENTS + /* create a trace_kprobe, but don't add it to global lists */ struct trace_event_call * create_local_trace_kprobe(char *func, void *addr, unsigned long offs, @@ -1705,6 +1750,24 @@ create_local_trace_kprobe(char *func, void *addr, unsigned long offs, int ret; char *event; + if (func) { + unsigned int count; + + count = number_of_same_symbols(func); + if (count > 1) + /* + * Users should use addr to remove the ambiguity of + * using func only. + */ + return ERR_PTR(-EADDRNOTAVAIL); + else if (count == 0) + /* + * We can return ENOENT earlier than when register the + * kprobe. + */ + return ERR_PTR(-ENOENT); + } + /* * local trace_kprobes are not added to dyn_event, so they are never * searched in find_trace_kprobe(). Therefore, there is no concern of diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h index 02b432ae7513..850d9ecb6765 100644 --- a/kernel/trace/trace_probe.h +++ b/kernel/trace/trace_probe.h @@ -450,6 +450,7 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call, C(BAD_MAXACT, "Invalid maxactive number"), \ C(MAXACT_TOO_BIG, "Maxactive is too big"), \ C(BAD_PROBE_ADDR, "Invalid probed address or symbol"), \ + C(NON_UNIQ_SYMBOL, "The symbol is not unique"), \ C(BAD_RETPROBE, "Retprobe address must be an function entry"), \ C(NO_TRACEPOINT, "Tracepoint is not found"), \ C(BAD_ADDR_SUFFIX, "Invalid probed address suffix"), \

2 years

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Linux-stable-mirror October 2023