Regressions noticed on the Qualcomm Dragonboard 845c device while booting the Linux next tags from next-20250616..next-20250620 the following kernel oops noticed and boot failed.
Regressions found on Thundercomm Dragonboard 845c (DT) - Boot
Regression Analysis: - New regression? Yes - Reproducibility? Yes
First seen on the next-20250616 Good: next-20250613 Bad: next-20250616
Boot regression: Qualcomm Dragonboard 845c Internal error Oops at ufs_qcom_setup_clocks
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Boot log [ 6.446825] ufshcd-qcom 1d84000.ufshc: ufshcd_populate_vreg: Unable to find vccq2-supply regulator, assuming enabled [ 6.448070] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 6.448080] Mem abort info: [ 6.448086] ESR = 0x0000000096000006 [ 6.448093] EC = 0x25: DABT (current EL), IL = 32 bits [ 6.448101] SET = 0, FnV = 0 [ 6.448107] EA = 0, S1PTW = 0 [ 6.448113] FSC = 0x06: level 2 translation fault [ 6.448120] Data abort info: [ 6.448125] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 6.448132] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 6.448139] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 6.448146] user pgtable: 4k pages, 48-bit VAs, pgdp=000000010447b000 [ 6.448154] [0000000000000000] pgd=080000010447d403, p4d=080000010447d403, pud=080000010447e403, pmd=0000000000000000 [ 6.448186] Internal error: Oops: 0000000096000006 [#1] SMP [ 6.448193] Modules linked in: qcom_q6v5_mss(+) ufs_qcom(+) cfg80211(+) coresight_stm stm_core phy_qcom_qmp_pcie rfkill qcom_wdt lmh(+) icc_osm_l3 qrtr slim_qcom_ngd_ctrl slimbus pdr_interface qcom_pdr_msg icc_bwmon qcom_q6v5_pas(+) llcc_qcom qcom_pil_info display_connector qcom_q6v5 qcom_sysmon drm_kms_helper qcom_common qcom_glink_smem mdt_loader qmi_helpers drm backlight socinfo rmtfs_mem [ 6.448278] CPU: 6 UID: 0 PID: 385 Comm: (udev-worker) Not tainted 6.16.0-rc2-next-20250620 #1 PREEMPT [ 6.448288] Hardware name: Thundercomm Dragonboard 845c (DT) [ 6.448292] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.448299] pc : ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom [ 6.448317] lr : ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448332] sp : ffff800081213640 [ 6.448335] x29: ffff800081213640 x28: 0000000000000001 x27: ffff00008b633270 [ 6.448347] x26: ffff00008b6332a0 x25: ffff00008b632870 x24: 0000000000000000 [ 6.448359] x23: ffff00008b633280 x22: ffff00008b6332a0 x21: 0000000000000000 [ 6.448369] x20: ffffd7eabf84d618 x19: ffff00008b632870 x18: 0000000000000000 [ 6.448380] x17: 5453595342555300 x16: 305f666d745f6973 x15: 0000000000000100 [ 6.448391] x14: ffffffffffffffff x13: 0000000000000030 x12: 0101010101010101 [ 6.448402] x11: ffff00008188ea18 x10: 0000000000000000 x9 : ffffd7eabd9c3c28 [ 6.448413] x8 : ffff8000812134b8 x7 : fefefefefefefefe x6 : 0000000000000001 [ 6.448423] x5 : ffffffffffffffc8 x4 : 00000000c0000000 x3 : ffffd7eab32aa058 [ 6.448433] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00008b632870 [ 6.448444] Call trace: [ 6.448449] ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom (P) [ 6.448466] ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448477] ufshcd_init (drivers/ufs/core/ufshcd.c:9468 drivers/ufs/core/ufshcd.c:10636) [ 6.448485] ufshcd_pltfrm_init (drivers/ufs/host/ufshcd-pltfrm.c:504) [ 6.448495] ufs_qcom_probe+0x28/0x68 ufs_qcom [ 6.448508] platform_probe (drivers/base/platform.c:1404) [ 6.448519] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:657) [ 6.448526] __driver_probe_device (drivers/base/dd.c:799) [ 6.448532] driver_probe_device (drivers/base/dd.c:829) [ 6.448539] __driver_attach (drivers/base/dd.c:1216) [ 6.448545] bus_for_each_dev (drivers/base/bus.c:370) [ 6.448556] driver_attach (drivers/base/dd.c:1234) [ 6.448567] bus_add_driver (drivers/base/bus.c:678) [ 6.448577] driver_register (drivers/base/driver.c:249) [ 6.448584] __platform_driver_register (drivers/base/platform.c:868) [ 6.448592] ufs_qcom_pltform_init+0x28/0xff8 ufs_qcom [ 6.448605] do_one_initcall (init/main.c:1274) [ 6.448615] do_init_module (kernel/module/main.c:3041) [ 6.448626] load_module (kernel/module/main.c:3511) [ 6.448635] init_module_from_file (kernel/module/main.c:3704) [ 6.448644] __arm64_sys_finit_module (kernel/module/main.c:3715 kernel/module/main.c:3741 kernel/module/main.c:3725 kernel/module/main.c:3725) [ 6.448653] invoke_syscall (arch/arm64/include/asm/current.h:19 arch/arm64/kernel/syscall.c:54) [ 6.448661] el0_svc_common.constprop.0 (include/linux/thread_info.h:135 (discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2)) [ 6.448668] do_el0_svc (arch/arm64/kernel/syscall.c:152) [ 6.448674] el0_svc (arch/arm64/include/asm/irqflags.h:82 (discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator 1) arch/arm64/include/asm/irqflags.h:136 (discriminator 1) arch/arm64/kernel/entry-common.c:165 (discriminator 1) arch/arm64/kernel/entry-common.c:178 (discriminator 1) arch/arm64/kernel/entry-common.c:768 (discriminator 1)) [ 6.448685] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:787) [ 6.448694] el0t_64_sync (arch/arm64/kernel/entry.S:600) [ 6.448705] Code: a90157f3 aa0003f3 f90013f6 f9405c15 (f94002b6) All code ======== 0: a90157f3 stp x19, x21, [sp, #16] 4: aa0003f3 mov x19, x0 8: f90013f6 str x22, [sp, #32] c: f9405c15 ldr x21, [x0, #184] 10:* f94002b6 ldr x22, [x21] <-- trapping instruction
Code starting with the faulting instruction =========================================== 0: f94002b6 ldr x22, [x21] [ 6.448710] ---[ end trace 0000000000000000 ]---
## Source * Kernel version: 6.16.0-rc2-next-20250620 * Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git * Git sha: 2c923c845768a0f0e34b8161d70bc96525385782 * Git describe: next-20250620 * Project details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250620/ * Architectures: arm64 Dragonboard 845c * Toolchains: gcc-13 * Kconfigs: defconfig+lkfttestconfigs
## Build arm64 * Test log: https://qa-reports.linaro.org/api/testruns/28811906/log_file/ * Test Lava log: https://lkft.validation.linaro.org/scheduler/job/8323501#L5646 * Test Lava log 2: https://lkft.validation.linaro.org/scheduler/job/8323351#L5682 * Test details: https://regressions.linaro.org/lkft/linux-next-master/next-20250620/boot/gcc... * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN... * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
-- Linaro LKFT https://lkft.linaro.org
On 6/21/2025 1:40 PM, Naresh Kamboju wrote:
Regressions noticed on the Qualcomm Dragonboard 845c device while booting the Linux next tags from next-20250616..next-20250620 the following kernel oops noticed and boot failed.
Regressions found on Thundercomm Dragonboard 845c (DT)
- Boot
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
First seen on the next-20250616 Good: next-20250613 Bad: next-20250616
Boot regression: Qualcomm Dragonboard 845c Internal error Oops at ufs_qcom_setup_clocks
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Hi Naresh,
Thanks for testing and reporting this issue. Can you please test with the attached fix and let me know if it helps.
Regards, Nitin
## Boot log [ 6.446825] ufshcd-qcom 1d84000.ufshc: ufshcd_populate_vreg: Unable to find vccq2-supply regulator, assuming enabled [ 6.448070] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 6.448080] Mem abort info: [ 6.448086] ESR = 0x0000000096000006 [ 6.448093] EC = 0x25: DABT (current EL), IL = 32 bits [ 6.448101] SET = 0, FnV = 0 [ 6.448107] EA = 0, S1PTW = 0 [ 6.448113] FSC = 0x06: level 2 translation fault [ 6.448120] Data abort info: [ 6.448125] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 6.448132] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 6.448139] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 6.448146] user pgtable: 4k pages, 48-bit VAs, pgdp=000000010447b000 [ 6.448154] [0000000000000000] pgd=080000010447d403, p4d=080000010447d403, pud=080000010447e403, pmd=0000000000000000 [ 6.448186] Internal error: Oops: 0000000096000006 [#1] SMP [ 6.448193] Modules linked in: qcom_q6v5_mss(+) ufs_qcom(+) cfg80211(+) coresight_stm stm_core phy_qcom_qmp_pcie rfkill qcom_wdt lmh(+) icc_osm_l3 qrtr slim_qcom_ngd_ctrl slimbus pdr_interface qcom_pdr_msg icc_bwmon qcom_q6v5_pas(+) llcc_qcom qcom_pil_info display_connector qcom_q6v5 qcom_sysmon drm_kms_helper qcom_common qcom_glink_smem mdt_loader qmi_helpers drm backlight socinfo rmtfs_mem [ 6.448278] CPU: 6 UID: 0 PID: 385 Comm: (udev-worker) Not tainted 6.16.0-rc2-next-20250620 #1 PREEMPT [ 6.448288] Hardware name: Thundercomm Dragonboard 845c (DT) [ 6.448292] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.448299] pc : ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom [ 6.448317] lr : ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448332] sp : ffff800081213640 [ 6.448335] x29: ffff800081213640 x28: 0000000000000001 x27: ffff00008b633270 [ 6.448347] x26: ffff00008b6332a0 x25: ffff00008b632870 x24: 0000000000000000 [ 6.448359] x23: ffff00008b633280 x22: ffff00008b6332a0 x21: 0000000000000000 [ 6.448369] x20: ffffd7eabf84d618 x19: ffff00008b632870 x18: 0000000000000000 [ 6.448380] x17: 5453595342555300 x16: 305f666d745f6973 x15: 0000000000000100 [ 6.448391] x14: ffffffffffffffff x13: 0000000000000030 x12: 0101010101010101 [ 6.448402] x11: ffff00008188ea18 x10: 0000000000000000 x9 : ffffd7eabd9c3c28 [ 6.448413] x8 : ffff8000812134b8 x7 : fefefefefefefefe x6 : 0000000000000001 [ 6.448423] x5 : ffffffffffffffc8 x4 : 00000000c0000000 x3 : ffffd7eab32aa058 [ 6.448433] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00008b632870 [ 6.448444] Call trace: [ 6.448449] ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom (P) [ 6.448466] ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448477] ufshcd_init (drivers/ufs/core/ufshcd.c:9468 drivers/ufs/core/ufshcd.c:10636) [ 6.448485] ufshcd_pltfrm_init (drivers/ufs/host/ufshcd-pltfrm.c:504) [ 6.448495] ufs_qcom_probe+0x28/0x68 ufs_qcom [ 6.448508] platform_probe (drivers/base/platform.c:1404) [ 6.448519] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:657) [ 6.448526] __driver_probe_device (drivers/base/dd.c:799) [ 6.448532] driver_probe_device (drivers/base/dd.c:829) [ 6.448539] __driver_attach (drivers/base/dd.c:1216) [ 6.448545] bus_for_each_dev (drivers/base/bus.c:370) [ 6.448556] driver_attach (drivers/base/dd.c:1234) [ 6.448567] bus_add_driver (drivers/base/bus.c:678) [ 6.448577] driver_register (drivers/base/driver.c:249) [ 6.448584] __platform_driver_register (drivers/base/platform.c:868) [ 6.448592] ufs_qcom_pltform_init+0x28/0xff8 ufs_qcom [ 6.448605] do_one_initcall (init/main.c:1274) [ 6.448615] do_init_module (kernel/module/main.c:3041) [ 6.448626] load_module (kernel/module/main.c:3511) [ 6.448635] init_module_from_file (kernel/module/main.c:3704) [ 6.448644] __arm64_sys_finit_module (kernel/module/main.c:3715 kernel/module/main.c:3741 kernel/module/main.c:3725 kernel/module/main.c:3725) [ 6.448653] invoke_syscall (arch/arm64/include/asm/current.h:19 arch/arm64/kernel/syscall.c:54) [ 6.448661] el0_svc_common.constprop.0 (include/linux/thread_info.h:135 (discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2)) [ 6.448668] do_el0_svc (arch/arm64/kernel/syscall.c:152) [ 6.448674] el0_svc (arch/arm64/include/asm/irqflags.h:82 (discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator
- arch/arm64/include/asm/irqflags.h:136 (discriminator 1)
arch/arm64/kernel/entry-common.c:165 (discriminator 1) arch/arm64/kernel/entry-common.c:178 (discriminator 1) arch/arm64/kernel/entry-common.c:768 (discriminator 1)) [ 6.448685] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:787) [ 6.448694] el0t_64_sync (arch/arm64/kernel/entry.S:600) [ 6.448705] Code: a90157f3 aa0003f3 f90013f6 f9405c15 (f94002b6) All code ======== 0: a90157f3 stp x19, x21, [sp, #16] 4: aa0003f3 mov x19, x0 8: f90013f6 str x22, [sp, #32] c: f9405c15 ldr x21, [x0, #184] 10:* f94002b6 ldr x22, [x21] <-- trapping instruction
Code starting with the faulting instruction
0: f94002b6 ldr x22, [x21][ 6.448710] ---[ end trace 0000000000000000 ]---
## Source
- Kernel version: 6.16.0-rc2-next-20250620
- Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
- Git sha: 2c923c845768a0f0e34b8161d70bc96525385782
- Git describe: next-20250620
- Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250620/
- Architectures: arm64 Dragonboard 845c
- Toolchains: gcc-13
- Kconfigs: defconfig+lkfttestconfigs
## Build arm64
- Test log: https://qa-reports.linaro.org/api/testruns/28811906/log_file/
- Test Lava log: https://lkft.validation.linaro.org/scheduler/job/8323501#L5646
- Test Lava log 2:
https://lkft.validation.linaro.org/scheduler/job/8323351#L5682
- Test details:
https://regressions.linaro.org/lkft/linux-next-master/next-20250620/boot/gcc...
- Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
- Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
-- Linaro LKFT https://lkft.linaro.org
On Sat, 21 Jun 2025 at 22:45, Nitin Rawat quic_nitirawa@quicinc.com wrote:
On 6/21/2025 1:40 PM, Naresh Kamboju wrote:
Regressions noticed on the Qualcomm Dragonboard 845c device while booting the Linux next tags from next-20250616..next-20250620 the following kernel oops noticed and boot failed.
Regressions found on Thundercomm Dragonboard 845c (DT)
- Boot
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
First seen on the next-20250616 Good: next-20250613 Bad: next-20250616
Boot regression: Qualcomm Dragonboard 845c Internal error Oops at ufs_qcom_setup_clocks
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Hi Naresh,
Thanks for testing and reporting this issue. Can you please test with the attached fix and let me know if it helps.
The attached patch applied on top of the Linux next and boot test pass and also LTP smoke runs smooth.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org Tested-by: Linux Kernel Functional Testing lkft@linaro.org
Boot test pass LAVA test jobs runs links, - https://lkft.validation.linaro.org/scheduler/job/8324919#L5075 - https://lkft.validation.linaro.org/scheduler/job/8324918#L5105 - https://lkft.validation.linaro.org/scheduler/job/8324917#L5120
- Naresh
Regards, Nitin
## Boot log [ 6.446825] ufshcd-qcom 1d84000.ufshc: ufshcd_populate_vreg: Unable to find vccq2-supply regulator, assuming enabled [ 6.448070] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 6.448080] Mem abort info: [ 6.448086] ESR = 0x0000000096000006 [ 6.448093] EC = 0x25: DABT (current EL), IL = 32 bits [ 6.448101] SET = 0, FnV = 0 [ 6.448107] EA = 0, S1PTW = 0 [ 6.448113] FSC = 0x06: level 2 translation fault [ 6.448120] Data abort info: [ 6.448125] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 6.448132] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 6.448139] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 6.448146] user pgtable: 4k pages, 48-bit VAs, pgdp=000000010447b000 [ 6.448154] [0000000000000000] pgd=080000010447d403, p4d=080000010447d403, pud=080000010447e403, pmd=0000000000000000 [ 6.448186] Internal error: Oops: 0000000096000006 [#1] SMP [ 6.448193] Modules linked in: qcom_q6v5_mss(+) ufs_qcom(+) cfg80211(+) coresight_stm stm_core phy_qcom_qmp_pcie rfkill qcom_wdt lmh(+) icc_osm_l3 qrtr slim_qcom_ngd_ctrl slimbus pdr_interface qcom_pdr_msg icc_bwmon qcom_q6v5_pas(+) llcc_qcom qcom_pil_info display_connector qcom_q6v5 qcom_sysmon drm_kms_helper qcom_common qcom_glink_smem mdt_loader qmi_helpers drm backlight socinfo rmtfs_mem [ 6.448278] CPU: 6 UID: 0 PID: 385 Comm: (udev-worker) Not tainted 6.16.0-rc2-next-20250620 #1 PREEMPT [ 6.448288] Hardware name: Thundercomm Dragonboard 845c (DT) [ 6.448292] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.448299] pc : ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom [ 6.448317] lr : ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448332] sp : ffff800081213640 [ 6.448335] x29: ffff800081213640 x28: 0000000000000001 x27: ffff00008b633270 [ 6.448347] x26: ffff00008b6332a0 x25: ffff00008b632870 x24: 0000000000000000 [ 6.448359] x23: ffff00008b633280 x22: ffff00008b6332a0 x21: 0000000000000000 [ 6.448369] x20: ffffd7eabf84d618 x19: ffff00008b632870 x18: 0000000000000000 [ 6.448380] x17: 5453595342555300 x16: 305f666d745f6973 x15: 0000000000000100 [ 6.448391] x14: ffffffffffffffff x13: 0000000000000030 x12: 0101010101010101 [ 6.448402] x11: ffff00008188ea18 x10: 0000000000000000 x9 : ffffd7eabd9c3c28 [ 6.448413] x8 : ffff8000812134b8 x7 : fefefefefefefefe x6 : 0000000000000001 [ 6.448423] x5 : ffffffffffffffc8 x4 : 00000000c0000000 x3 : ffffd7eab32aa058 [ 6.448433] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00008b632870 [ 6.448444] Call trace: [ 6.448449] ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom (P) [ 6.448466] ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448477] ufshcd_init (drivers/ufs/core/ufshcd.c:9468 drivers/ufs/core/ufshcd.c:10636) [ 6.448485] ufshcd_pltfrm_init (drivers/ufs/host/ufshcd-pltfrm.c:504) [ 6.448495] ufs_qcom_probe+0x28/0x68 ufs_qcom [ 6.448508] platform_probe (drivers/base/platform.c:1404) [ 6.448519] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:657) [ 6.448526] __driver_probe_device (drivers/base/dd.c:799) [ 6.448532] driver_probe_device (drivers/base/dd.c:829) [ 6.448539] __driver_attach (drivers/base/dd.c:1216) [ 6.448545] bus_for_each_dev (drivers/base/bus.c:370) [ 6.448556] driver_attach (drivers/base/dd.c:1234) [ 6.448567] bus_add_driver (drivers/base/bus.c:678) [ 6.448577] driver_register (drivers/base/driver.c:249) [ 6.448584] __platform_driver_register (drivers/base/platform.c:868) [ 6.448592] ufs_qcom_pltform_init+0x28/0xff8 ufs_qcom [ 6.448605] do_one_initcall (init/main.c:1274) [ 6.448615] do_init_module (kernel/module/main.c:3041) [ 6.448626] load_module (kernel/module/main.c:3511) [ 6.448635] init_module_from_file (kernel/module/main.c:3704) [ 6.448644] __arm64_sys_finit_module (kernel/module/main.c:3715 kernel/module/main.c:3741 kernel/module/main.c:3725 kernel/module/main.c:3725) [ 6.448653] invoke_syscall (arch/arm64/include/asm/current.h:19 arch/arm64/kernel/syscall.c:54) [ 6.448661] el0_svc_common.constprop.0 (include/linux/thread_info.h:135 (discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2)) [ 6.448668] do_el0_svc (arch/arm64/kernel/syscall.c:152) [ 6.448674] el0_svc (arch/arm64/include/asm/irqflags.h:82 (discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator
- arch/arm64/include/asm/irqflags.h:136 (discriminator 1)
arch/arm64/kernel/entry-common.c:165 (discriminator 1) arch/arm64/kernel/entry-common.c:178 (discriminator 1) arch/arm64/kernel/entry-common.c:768 (discriminator 1)) [ 6.448685] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:787) [ 6.448694] el0t_64_sync (arch/arm64/kernel/entry.S:600) [ 6.448705] Code: a90157f3 aa0003f3 f90013f6 f9405c15 (f94002b6) All code ======== 0: a90157f3 stp x19, x21, [sp, #16] 4: aa0003f3 mov x19, x0 8: f90013f6 str x22, [sp, #32] c: f9405c15 ldr x21, [x0, #184] 10:* f94002b6 ldr x22, [x21] <-- trapping instruction
Code starting with the faulting instruction
0: f94002b6 ldr x22, [x21][ 6.448710] ---[ end trace 0000000000000000 ]---
## Source
- Kernel version: 6.16.0-rc2-next-20250620
- Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
- Git sha: 2c923c845768a0f0e34b8161d70bc96525385782
- Git describe: next-20250620
- Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250620/
- Architectures: arm64 Dragonboard 845c
- Toolchains: gcc-13
- Kconfigs: defconfig+lkfttestconfigs
## Build arm64
- Test log: https://qa-reports.linaro.org/api/testruns/28811906/log_file/
- Test Lava log: https://lkft.validation.linaro.org/scheduler/job/8323501#L5646
- Test Lava log 2:
https://lkft.validation.linaro.org/scheduler/job/8323351#L5682
- Test details:
https://regressions.linaro.org/lkft/linux-next-master/next-20250620/boot/gcc...
- Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
- Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
-- Linaro LKFT https://lkft.linaro.org
On 6/22/2025 2:22 PM, Naresh Kamboju wrote:
On Sat, 21 Jun 2025 at 22:45, Nitin Rawat quic_nitirawa@quicinc.com wrote:
On 6/21/2025 1:40 PM, Naresh Kamboju wrote:
Regressions noticed on the Qualcomm Dragonboard 845c device while booting the Linux next tags from next-20250616..next-20250620 the following kernel oops noticed and boot failed.
Regressions found on Thundercomm Dragonboard 845c (DT)
- Boot
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
First seen on the next-20250616 Good: next-20250613 Bad: next-20250616
Boot regression: Qualcomm Dragonboard 845c Internal error Oops at ufs_qcom_setup_clocks
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Hi Naresh,
Thanks for testing and reporting this issue. Can you please test with the attached fix and let me know if it helps.
The attached patch applied on top of the Linux next and boot test pass and also LTP smoke runs smooth.
Thank you, Naresh, for testing the fix. I have sent the patch for review.
Thanks, Nitin
Reported-by: Linux Kernel Functional Testing lkft@linaro.org Tested-by: Linux Kernel Functional Testing lkft@linaro.org
Boot test pass LAVA test jobs runs links,
https://lkft.validation.linaro.org/scheduler/job/8324919#L5075
https://lkft.validation.linaro.org/scheduler/job/8324918#L5105
Naresh
Regards, Nitin
## Boot log [ 6.446825] ufshcd-qcom 1d84000.ufshc: ufshcd_populate_vreg: Unable to find vccq2-supply regulator, assuming enabled [ 6.448070] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 6.448080] Mem abort info: [ 6.448086] ESR = 0x0000000096000006 [ 6.448093] EC = 0x25: DABT (current EL), IL = 32 bits [ 6.448101] SET = 0, FnV = 0 [ 6.448107] EA = 0, S1PTW = 0 [ 6.448113] FSC = 0x06: level 2 translation fault [ 6.448120] Data abort info: [ 6.448125] ISV = 0, ISS = 0x00000006, ISS2 = 0x00000000 [ 6.448132] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 6.448139] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 6.448146] user pgtable: 4k pages, 48-bit VAs, pgdp=000000010447b000 [ 6.448154] [0000000000000000] pgd=080000010447d403, p4d=080000010447d403, pud=080000010447e403, pmd=0000000000000000 [ 6.448186] Internal error: Oops: 0000000096000006 [#1] SMP [ 6.448193] Modules linked in: qcom_q6v5_mss(+) ufs_qcom(+) cfg80211(+) coresight_stm stm_core phy_qcom_qmp_pcie rfkill qcom_wdt lmh(+) icc_osm_l3 qrtr slim_qcom_ngd_ctrl slimbus pdr_interface qcom_pdr_msg icc_bwmon qcom_q6v5_pas(+) llcc_qcom qcom_pil_info display_connector qcom_q6v5 qcom_sysmon drm_kms_helper qcom_common qcom_glink_smem mdt_loader qmi_helpers drm backlight socinfo rmtfs_mem [ 6.448278] CPU: 6 UID: 0 PID: 385 Comm: (udev-worker) Not tainted 6.16.0-rc2-next-20250620 #1 PREEMPT [ 6.448288] Hardware name: Thundercomm Dragonboard 845c (DT) [ 6.448292] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 6.448299] pc : ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom [ 6.448317] lr : ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448332] sp : ffff800081213640 [ 6.448335] x29: ffff800081213640 x28: 0000000000000001 x27: ffff00008b633270 [ 6.448347] x26: ffff00008b6332a0 x25: ffff00008b632870 x24: 0000000000000000 [ 6.448359] x23: ffff00008b633280 x22: ffff00008b6332a0 x21: 0000000000000000 [ 6.448369] x20: ffffd7eabf84d618 x19: ffff00008b632870 x18: 0000000000000000 [ 6.448380] x17: 5453595342555300 x16: 305f666d745f6973 x15: 0000000000000100 [ 6.448391] x14: ffffffffffffffff x13: 0000000000000030 x12: 0101010101010101 [ 6.448402] x11: ffff00008188ea18 x10: 0000000000000000 x9 : ffffd7eabd9c3c28 [ 6.448413] x8 : ffff8000812134b8 x7 : fefefefefefefefe x6 : 0000000000000001 [ 6.448423] x5 : ffffffffffffffc8 x4 : 00000000c0000000 x3 : ffffd7eab32aa058 [ 6.448433] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff00008b632870 [ 6.448444] Call trace: [ 6.448449] ufs_qcom_setup_clocks+0x28/0x148 ufs_qcom (P) [ 6.448466] ufshcd_setup_clocks (drivers/ufs/core/ufshcd-priv.h:142 drivers/ufs/core/ufshcd.c:9290) [ 6.448477] ufshcd_init (drivers/ufs/core/ufshcd.c:9468 drivers/ufs/core/ufshcd.c:10636) [ 6.448485] ufshcd_pltfrm_init (drivers/ufs/host/ufshcd-pltfrm.c:504) [ 6.448495] ufs_qcom_probe+0x28/0x68 ufs_qcom [ 6.448508] platform_probe (drivers/base/platform.c:1404) [ 6.448519] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:657) [ 6.448526] __driver_probe_device (drivers/base/dd.c:799) [ 6.448532] driver_probe_device (drivers/base/dd.c:829) [ 6.448539] __driver_attach (drivers/base/dd.c:1216) [ 6.448545] bus_for_each_dev (drivers/base/bus.c:370) [ 6.448556] driver_attach (drivers/base/dd.c:1234) [ 6.448567] bus_add_driver (drivers/base/bus.c:678) [ 6.448577] driver_register (drivers/base/driver.c:249) [ 6.448584] __platform_driver_register (drivers/base/platform.c:868) [ 6.448592] ufs_qcom_pltform_init+0x28/0xff8 ufs_qcom [ 6.448605] do_one_initcall (init/main.c:1274) [ 6.448615] do_init_module (kernel/module/main.c:3041) [ 6.448626] load_module (kernel/module/main.c:3511) [ 6.448635] init_module_from_file (kernel/module/main.c:3704) [ 6.448644] __arm64_sys_finit_module (kernel/module/main.c:3715 kernel/module/main.c:3741 kernel/module/main.c:3725 kernel/module/main.c:3725) [ 6.448653] invoke_syscall (arch/arm64/include/asm/current.h:19 arch/arm64/kernel/syscall.c:54) [ 6.448661] el0_svc_common.constprop.0 (include/linux/thread_info.h:135 (discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2)) [ 6.448668] do_el0_svc (arch/arm64/kernel/syscall.c:152) [ 6.448674] el0_svc (arch/arm64/include/asm/irqflags.h:82 (discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator
- arch/arm64/include/asm/irqflags.h:136 (discriminator 1)
arch/arm64/kernel/entry-common.c:165 (discriminator 1) arch/arm64/kernel/entry-common.c:178 (discriminator 1) arch/arm64/kernel/entry-common.c:768 (discriminator 1)) [ 6.448685] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:787) [ 6.448694] el0t_64_sync (arch/arm64/kernel/entry.S:600) [ 6.448705] Code: a90157f3 aa0003f3 f90013f6 f9405c15 (f94002b6) All code ======== 0: a90157f3 stp x19, x21, [sp, #16] 4: aa0003f3 mov x19, x0 8: f90013f6 str x22, [sp, #32] c: f9405c15 ldr x21, [x0, #184] 10:* f94002b6 ldr x22, [x21] <-- trapping instruction
Code starting with the faulting instruction
0: f94002b6 ldr x22, [x21][ 6.448710] ---[ end trace 0000000000000000 ]---
## Source
- Kernel version: 6.16.0-rc2-next-20250620
- Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
- Git sha: 2c923c845768a0f0e34b8161d70bc96525385782
- Git describe: next-20250620
- Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250620/
- Architectures: arm64 Dragonboard 845c
- Toolchains: gcc-13
- Kconfigs: defconfig+lkfttestconfigs
## Build arm64
- Test log: https://qa-reports.linaro.org/api/testruns/28811906/log_file/
- Test Lava log: https://lkft.validation.linaro.org/scheduler/job/8323501#L5646
- Test Lava log 2:
https://lkft.validation.linaro.org/scheduler/job/8323351#L5682
- Test details:
https://regressions.linaro.org/lkft/linux-next-master/next-20250620/boot/gcc...
- Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
- Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2yj4otvwBRT4UktLTyKEN...
-- Linaro LKFT https://lkft.linaro.org
-
Naresh Kamboju -
Nitin Rawat