On Wed, Nov 7, 2018, at 9:10 AM, Linaro QA wrote:

Summary

kernel: 4.20.0-rc1 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: d881de30d29ee4d14a475b81e523e9335f81ab9f git describe: next-20181107 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe-sanity/build/next-20181107

Regressions (compared to build next-20181105)

i386: ltp-quickhit-tests: * fsync01

* test src: git://github.com/linux-test-project/ltp.git

Investigating:

[ 48.027162] BUG: unable to handle kernel NULL pointer dereference at 0000028a [ 48.034530] *pde = 00000000 [ 48.037416] Oops: 0000 [#20] SMP [ 48.040648] CPU: 0 PID: 2970 Comm: fsync01 Tainted: G D W 4.20.0-rc1-next-20181107 #1 [ 48.049593] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 48.057073] EIP: locks_remove_flock+0x60/0xb0 [ 48.061430] Code: 10 e8 b4 d3 ff ff 8b 43 14 83 4d 80 40 8b 70 58 85 f6 74 46 8d 8d 58 ff ff ff ba 07 00 00 00 89 d8 ff d6 8b 45 d8 85 c0 74 0f <8b> 50 04 85 d2 74 08 8d 85 58 ff ff ff ff d2 8b 45 f0 65 33 05 14 [ 48.080165] EAX: 00000286 EBX: f51f4dc0 ECX: 00000000 EDX: 00000000 [ 48.086425] ESI: 00000000 EDI: f5395f28 EBP: eb905f14 ESP: eb905e6c [ 48.092681] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 48.099457] CR0: 80050033 CR2: 0000028a CR3: 3269b000 CR4: 003406d0 [ 48.105713] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 48.111971] DR6: fffe0ff0 DR7: 00000400 [ 48.115803] Call Trace: [ 48.118250] ? pipe_write+0x294/0x430 [ 48.121915] ? loop_set_status64+0x70/0x70 [ 48.126013] ? __audit_syscall_entry+0xb2/0xf0 [ 48.130460] ? ktime_get_coarse_real_ts64+0x4d/0xd0 [ 48.135338] ? trace_hardirqs_on+0x43/0xe0 [ 48.139437] ? __audit_syscall_entry+0xb2/0xf0 [ 48.143875] locks_remove_file+0x3e/0x1e0 [ 48.147886] __fput+0xc2/0x1f0 [ 48.150937] ____fput+0xd/0x10 [ 48.153987] task_work_run+0x7f/0xb0 [ 48.157558] exit_to_usermode_loop+0x9d/0xa0 [ 48.161822] do_fast_syscall_32+0x257/0x2a0 [ 48.165999] entry_SYSENTER_32+0x70/0xc8 [ 48.169917] EIP: 0xb7f5e991 [ 48.172706] Code: 8b 98 60 cd ff ff 85 d2 89 c8 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 1c 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 [ 48.191444] EAX: 00000000 EBX: 00000006 ECX: 00004c02 EDX: bf936d84 [ 48.197700] ESI: 00000007 EDI: bf936e10 EBP: bf936eb8 ESP: bf936cf0 [ 48.203958] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246 [ 48.210735] Modules linked in: x86_pkg_temp_thermal fuse [ 48.216047] CR2: 000000000000028a [ 48.219358] ---[ end trace 30875d5239ac019f ]--- [ 48.219359] BUG: unable to handle kernel NULL pointer dereference at 0000028a [ 48.219360] *pde = 00000000 [ 48.223978] EIP: locks_remove_flock+0x60/0xb0 [ 48.231102] Oops: 0000 [#21] SMP [ 48.233977] Code: 10 e8 b4 d3 ff ff 8b 43 14 83 4d 80 40 8b 70 58 85 f6 74 46 8d 8d 58 ff ff ff ba 07 00 00 00 89 d8 ff d6 8b 45 d8 85 c0 74 0f <8b> 50 04 85 d2 74 08 8d 85 58 ff ff ff ff d2 8b 45 f0 65 33 05 14 [ 48.233979] EAX: 00000286 EBX: f501c140 ECX: 00000000 EDX: ffffffff [ 48.238330] CPU: 2 PID: 1951 Comm: systemd-udevd Tainted: G D W 4.20.0-rc1-next-20181107 #1 [ 48.241553] ESI: 00000000 EDI: f53978c8 EBP: f37dff14 ESP: c4daf49c [ 48.241554] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 48.260287] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 48.260290] EIP: locks_remove_flock+0x60/0xb0 [ 48.266547] CR0: 80050033 CR2: 0000028a CR3: 3269b000 CR4: 003406d0 [ 48.266549] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 48.276020] Code: 10 e8 b4 d3 ff ff 8b 43 14 83 4d 80 40 8b 70 58 85 f6 74 46 8d 8d 58 ff ff ff ba 07 00 00 00 89 d8 ff d6 8b 45 d8 85 c0 74 0f <8b> 50 04 85 d2 74 08 8d 85 58 ff ff ff ff d2 8b 45 f0 65 33 05 14 [ 48.282275] DR6: fffe0ff0 DR7: 00000400 [ 48.335999] EAX: 00000286 EBX: f2706a00 ECX: 00000000 EDX: 00000000 [ 48.342267] ESI: 00000000 EDI: f5395f28 EBP: f3461f14 ESP: f3461e6c ge[tegid01 1 48.348531] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 48.356701] CR0: 80050033 CR2: 0000028a CR3: 35ad5000 CR4: 003406d0 [ 48.362958] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 48.369216] DR6: fffe0ff0 DR7: 00000400 [ 48.373048] Call Trace: [ 48.375493] ? free_pages.part.112+0x2d/0x30 [ 48.379765] ? free_pages+0x11/0x20 [ 48.383249] ? arch_tlb_finish_mmu+0x39/0x110 [ 48.387609] ? __audit_syscall_entry+0xb2/0xf0 [ 48.392053] ? ktime_get_coarse_real_ts64+0x4d/0xd0 [ 48.396923] ? trace_hardirqs_on+0x43/0xe0 [ 48.401016] ? __audit_syscall_entry+0xb2/0xf0 [ 48.405460] locks_remove_file+0x3e/0x1e0 [ 48.409466] __fput+0xc2/0x1f0 [ 48.412525] ____fput+0xd/0x10 [ 48.415583] task_work_run+0x7f/0xb0 [ 48.419192] exit_to_usermode_loop+0x9d/0xa0 [ 48.423460] do_fast_syscall_32+0x257/0x2a0 [ 48.427637] entry_SYSENTER_32+0x70/0xc8 [ 48.431553] EIP: 0xb7f2a991 [ 48.434346] Code: 8b 98 60 cd ff ff 85 d2 89 c8 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 1c 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 [ 48.453081] EAX: 00000000 EBX: 00000011 ECX: b7e667d8 EDX: 01127718 [ 48.459338] ESI: b7e85000 EDI: 00000002 EBP: b7c7649c ESP: bf906480 [ 48.465597] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246 [ 48.472374] Modules linked in: x86_pkg_temp_thermal fuse [ 48.477684] CR2: 000000000000028a [ 48.480998] ---[ end trace 30875d5239ac01a0 ]--- [ 48.485615] EIP: locks_remove_flock+0x60/0xb0 [ 48.489967] Code: 10 e8 b4 d3 ff ff 8b 43 14 83 4d 80 40 8b 70 58 85 f6 74 46 8d 8d 58 ff ff ff ba 07 00 00 00 89 d8 ff d6 8b 45 d8 85 c0 74 0f <8b> 50 04 85 d2 74 08 8d 85 58 ff ff ff ff d2 8b 45 f0 65 33 05 14 [ 48.508712] EAX: 00000286 EBX: f501c140 ECX: 00000000 EDX: ffffffff [ 48.514970] ESI: 00000000 EDI: f53978c8 EBP: f37dff14 ESP: c4daf49c [ 48.521226] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 48.528002] CR0: 80050033 CR2: 0000028a CR3: 35ad5000 CR4: 003406d0 [ 48.534259] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 48.540518] DR6: fffe0ff0 DR7: 00000400 [ 48.544348] BUG: sleeping function called from invalid context at /srv/oe/build/tmp-rpb-glibc/work-shared/intel-core2-32/kernel-source/include/linux/percpu-rwsem.h:34 [ 48.559186] in_atomic(): 0, irqs_disabled(): 1, pid: 1951, name: systemd-udevd [ 48.566404] INFO: lockdep is turned off. [ 48.570320] irq event stamp: 15986 [ 48.573717] hardirqs last enabled at (15985): [<c3c017fc>] trace_hardirqs_on_thunk+0xc/0x10 [ 48.582163] hardirqs last disabled at (15986): [<c479bd0a>] __schedule+0xaa/0xa40 [ 48.589638] softirqs last enabled at (15976): [<c47a66a5>] __do_softirq+0x2c5/0x3d3 [ 48.597371] softirqs last disabled at (15969): [<c3c1e3a5>] call_on_stack+0x45/0x50 [ 48.605022] CPU: 2 PID: 1951 Comm: systemd-udevd Tainted: G D W 4.20.0-rc1-next-20181107 #1 [ 48.614485] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 48.621956] Call Trace: [ 48.624399] dump_stack+0x66/0x96 [ 48.627712] ___might_sleep+0x13e/0x230 [ 48.631550] __might_sleep+0x33/0x80 [ 48.635150] exit_signals+0x2a/0x220 [ 48.638726] do_exit+0x8e/0xb40 [ 48.641872] ? exit_to_usermode_loop+0x9d/0xa0 [ 48.646319] rewind_stack_do_exit+0x11/0x13 [ 48.650504] EIP: 0xb7f2a991 [ 48.653292] Code: 8b 98 60 cd ff ff 85 d2 89 c8 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 1c 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 [ 48.672030] EAX: 00000000 EBX: 00000011 ECX: b7e667d8 EDX: 01127718 [ 48.678286] ESI: b7e85000 EDI: 00000002 EBP: b7c7649c ESP: bf906480 [ 48.684545] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246 TPASS : getegi[ 48.691592] BUG: unable to handle kernel paging request at 0016024a [ 48.699041] *pde = 00000000 [ 48.701920] Oops: 0000 [#22] SMP d [returned 0 ge 48.705155] CPU: 2 PID: 1951 Comm: systemd-udevd Tainted: G D W 4.20.0-rc1-next-20181107 #1 [ 48.716011] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 48.723482] EIP: locks_remove_flock+0x60/0xb0 [ 48.727833] Code: 10 e8 b4 d3 ff ff 8b 43 14 83 4d 80 40 8b 70 58 85 f6 74 46 8d 8d 58 ff ff ff ba 07 00 00 00 89 d8 ff d6 8b 45 d8 85 c0 74 0f <8b> 50 04 85 d2 74 08 8d 85 58 ff ff ff ff d2 8b 45 f0 65 33 05 14 [ 48.746569] EAX: 00160246 EBX: f27063c0 ECX: 00000000 EDX: 000001df [ 48.752828] ESI: 00000000 EDI: f5395f28 EBP: f3461efc ESP: f3461e54 te[uid01 1 TP 48.759118] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 48.767282] CR0: 80050033 CR2: 0016024a CR3: 04dab000 CR4: 003406d0 [ 48.773539] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 48.779798] DR6: fffe0ff0 DR7: 00000400 [ 48.783626] Call Trace: [ 48.786072] ? __slab_free+0x1ff/0x3b0 [ 48.789827] locks_remove_file+0x3e/0x1e0 [ 48.793838] __fput+0xc2/0x1f0 [ 48.796895] ____fput+0xd/0x10 [ 48.799946] task_work_run+0x7f/0xb0 [ 48.803517] do_exit+0x2d0/0xb40 [ 48.806741] ? exit_to_usermode_loop+0x9d/0xa0 [ 48.811188] rewind_stack_do_exit+0x11/0x13 [ 48.815372] EIP: 0xb7f2a991 [ 48.818195] Code: Bad RIP value. [ 48.821421] EAX: 00000000 EBX: 00000011 ECX: b7e667d8 EDX: 01127718 [ 48.827678] ESI: b7e85000 EDI: 00000002 EBP: b7c7649c ESP: bf906480 [ 48.833934] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246 [ 48.840714] Modules linked in: x86_pkg_temp_thermal fuse [ 48.846025] CR2: 000000000016024a [ 48.849336] ---[ end trace 30875d5239ac01a1 ]--- [ 48.853945] EIP: locks_remove_flock+0x60/0xb0 [ 48.858296] Code: 10 e8 b4 d3 ff ff 8b 43 14 83 4d 80 40 8b 70 58 85 f6 74 46 8d 8d 58 ff ff ff ba 07 00 00 00 89 d8 ff d6 8b 45 d8 85 c0 74 0f <8b> 50 04 85 d2 74 08 8d 85 58 ff ff ff ff d2 8b 45 f0 65 33 05 14 [ 48.877032] EAX: 00000286 EBX: f501c140 ECX: 00000000 EDX: ffffffff [ 48.883289] ESI: 00000000 EDI: f53978c8 EBP: f37dff14 ESP: c4daf49c [ 48.889549] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 48.896333] CR0: 80050033 CR2: b7f2a987 CR3: 04dab000 CR4: 003406d0 [ 48.902589] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 48.908846] DR6: fffe0ff0 DR7: 00000400 [ 48.912677] Fixing recursive fault but reboot is needed!