next-20250804 Unable to handle kernel execute from non-executable memory at virtual address idem_hash
While booting and testing selftest cgroups and filesystem testing on arm64 dragonboard-410c the following kernel warnings / errors noticed and system halted and did not recover with selftests Kconfig enabled running the kernel Linux next tag next-20250804.
Regression Analysis: - New regression? Yes - Reproducibility? Re-validation is in progress
First seen on the next-20250804 Good: next-20250801 Bad: next-20250804
Test regression: next-20250804 Unable to handle kernel execute from non-executable memory at virtual address idem_hash Test regression: next-20250804 refcount_t: addition on 0; use-after-free refcount_warn_saturate
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Test crash log [ 9.811341] Unable to handle kernel NULL pointer dereference at virtual address 000000000000002e [ 9.811444] Mem abort info: [ 9.821150] ESR = 0x0000000096000004 [ 9.833499] SET = 0, FnV = 0 [ 9.833566] EA = 0, S1PTW = 0 [ 9.835511] FSC = 0x04: level 0 translation fault [ 9.838901] Data abort info: [ 9.843788] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 9.846565] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 9.851938] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 9.853510] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: registered as rtc0 [ 9.856992] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000856f8000 [ 9.862446] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: setting system clock to 1970-01-01T00:00:31 UTC (31) [ 9.868789] [000000000000002e] pgd=0000000000000000, p4d=0000000000000000 [ 9.875459] Internal error: Oops: 0000000096000004 [#1] SMP [ 9.889547] input: pm8941_pwrkey as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:pwrkey/input/input1 [ 9.891545] Modules linked in: qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon(+) qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 9.912286] input: pm8941_resin as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:resin/input/input2 [ 9.941186] CPU: 2 UID: 0 PID: 221 Comm: (udev-worker) Not tainted 6.16.0-next-20250804 #1 PREEMPT [ 9.941200] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 9.941206] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 9.941215] pc : dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) [ 9.941233] lr : core_clks_enable+0x54/0x148 venus_core [ 10.004266] sp : ffff8000842b35f0 [ 10.004273] x29: ffff8000842b35f0 x28: ffff8000842b3ba0 x27: ffff0000047be938 [ 10.004289] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80007b350ba0 [ 10.004303] x23: ffff00000ba380c8 x22: ffff00000ba38080 x21: 0000000000000000 [ 10.004316] x20: 0000000000000000 x19: ffffffffffffffee x18: 00000000ffffffff [ 10.004330] x17: 0000000000000000 x16: 1fffe000017541a1 x15: ffff8000842b3560 [ 10.004344] x14: 0000000000000000 x13: 007473696c5f7974 x12: 696e696666615f65 [ 10.004358] x11: 00000000000000c0 x10: 0000000000000020 x9 : ffff80007b33f2bc [ 10.004371] x8 : ffffffffffffffde x7 : ffff0000044a4800 x6 : 0000000000000000 [ 10.004384] x5 : 0000000000000002 x4 : 00000000c0000000 x3 : 0000000000000001 [ 10.004397] x2 : 0000000000000002 x1 : ffffffffffffffde x0 : ffffffffffffffee [ 10.004412] Call trace: [ 10.004417] dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) (P) [ 10.004435] core_clks_enable+0x54/0x148 venus_core [ 10.004504] core_power_v1+0x78/0x90 venus_core [ 10.004560] venus_runtime_resume+0x6c/0x98 venus_core [ 10.004616] pm_generic_runtime_resume (/builds/linux/drivers/base/power/generic_ops.c:47) [ 10.004630] __genpd_runtime_resume (/builds/linux/drivers/pmdomain/core.c:1203) [ 10.004645] genpd_runtime_resume (/builds/linux/drivers/pmdomain/core.c:1329) [ 10.004656] __rpm_callback (/builds/linux/drivers/base/power/runtime.c:406) [ 10.004668] rpm_callback (/builds/linux/drivers/base/power/runtime.c:460) [ 10.004680] rpm_resume (/builds/linux/drivers/base/power/runtime.c:934) [ 10.004692] __pm_runtime_resume (/builds/linux/drivers/base/power/runtime.c:1192) [ 10.004704] venus_probe+0x2d8/0x588 venus_core [ 10.004761] platform_probe (/builds/linux/drivers/base/platform.c:1408 (discriminator 1)) [ 10.004776] really_probe (/builds/linux/drivers/base/dd.c:581 /builds/linux/drivers/base/dd.c:659) [ 10.004788] __driver_probe_device (/builds/linux/drivers/base/dd.c:801) [ 10.004800] driver_probe_device (/builds/linux/drivers/base/dd.c:831) [ 10.004812] __driver_attach (/builds/linux/drivers/base/dd.c:1218 /builds/linux/drivers/base/dd.c:1157) [ 10.004824] bus_for_each_dev (/builds/linux/drivers/base/bus.c:370) [ 10.004835] driver_attach (/builds/linux/drivers/base/dd.c:1236) [ 10.004847] bus_add_driver (/builds/linux/drivers/base/bus.c:678) [ 10.004859] driver_register (/builds/linux/drivers/base/driver.c:249) [ 10.004871] __platform_driver_register (/builds/linux/drivers/base/platform.c:868) [ 10.004885] qcom_venus_driver_init+0x28/0xfb8 venus_core [ 10.004942] do_one_initcall (/builds/linux/init/main.c:1269) [ 10.004954] do_init_module (/builds/linux/kernel/module/main.c:3039) [ 10.004967] load_module (/builds/linux/kernel/module/main.c:3509) [ 10.004979] init_module_from_file (/builds/linux/kernel/module/main.c:3702) [ 10.004991] __arm64_sys_finit_module (/builds/linux/kernel/module/main.c:3713 /builds/linux/kernel/module/main.c:3739 /builds/linux/kernel/module/main.c:3723 /builds/linux/kernel/module/main.c:3723) [ 10.005004] invoke_syscall (/builds/linux/arch/arm64/include/asm/current.h:19 /builds/linux/arch/arm64/kernel/syscall.c:54) [ 10.005014] el0_svc_common.constprop.0 (/builds/linux/arch/arm64/kernel/syscall.c:139) [ 10.005023] do_el0_svc (/builds/linux/arch/arm64/kernel/syscall.c:152) [ 10.005032] el0_svc (/builds/linux/arch/arm64/include/asm/irqflags.h:82 (discriminator 1) /builds/linux/arch/arm64/include/asm/irqflags.h:123 (discriminator 1) /builds/linux/arch/arm64/include/asm/irqflags.h:136 (discriminator 1) /builds/linux/arch/arm64/kernel/entry-common.c:169 (discriminator 1) /builds/linux/arch/arm64/kernel/entry-common.c:182 (discriminator 1) /builds/linux/arch/arm64/kernel/entry-common.c:880 (discriminator 1)) [ 10.005045] el0t_64_sync_handler (/builds/linux/arch/arm64/kernel/entry-common.c:899) [ 10.005058] el0t_64_sync (/builds/linux/arch/arm64/kernel/entry.S:596) [ 10.005073] Code: 910003fd f9000bf3 91004013 aa1303e0 (f9402821) All code ======== 0: 910003fd mov x29, sp 4: f9000bf3 str x19, [sp, #16] 8: 91004013 add x19, x0, #0x10 c: aa1303e0 mov x0, x19 10:* f9402821 ldr x1, [x1, #80] <-- trapping instruction
Code starting with the faulting instruction =========================================== 0: f9402821 ldr x1, [x1, #80] [ 10.005082] ---[ end trace 0000000000000000 ]--- [ 10.089433] systemd-journald[147]: Time jumped backwards, rotating.
## Test cgroup crash log selftests: cgroup: test_cpu ok 1 test_cpucg_subtree_control ok 2 test_cpucg_stats ok 3 test_cpucg_nice not ok 4 test_cpucg_weight_overprovisioned not ok 5 test_cpucg_weight_underprovisioned ok 6 test_cpucg_nested_weight_overprovisioned [ 60.273474] Unable to handle kernel execute from non-executable memory at virtual address ffff800082f89d50 [ 60.273547] Mem abort info: [ 60.282111] ESR = 0x000000008600000e [ 60.284730] EC = 0x21: IABT (current EL), IL = 32 bits [ 60.288616] SET = 0, FnV = 0 [ 60.294041] EA = 0, S1PTW = 0 [ 60.296880] FSC = 0x0e: level 2 permission fault [ 60.299953] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000082485000 [ 60.304828] [ffff800082f89d50] pgd=0000000000000000, p4d=100000008300c003, pud=100000008300d003, pmd=0068000082e00701 [ 60.311682] Internal error: Oops: 000000008600000e [#2] SMP [ 60.322146] Modules linked in: pm8916_wdt qcom_wcnss_pil snd_soc_lpass_apq8016 snd_soc_msm8916_analog snd_soc_lpass_cpu snd_soc_apq8016_sbc snd_soc_msm8916_digital snd_soc_lpass_platform snd_soc_qcom_common coresight_cpu_debug snd_soc_core coresight_tmc coresight_replicator snd_compress coresight_funnel snd_pcm_dmaengine coresight_stm stm_core coresight_cti coresight_tpiu snd_pcm coresight snd_timer qrtr msm snd adv7511 qcom_camss qcom_q6v5_mss soundcore qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 60.394361] CPU: 3 UID: 0 PID: 252 Comm: kworker/u16:7 Tainted: G D 6.16.0-next-20250804 #1 PREEMPT [ 60.416518] Tainted: [D]=DIE [ 60.427172] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 60.430139] Workqueue: 0x0 (async) [ 60.436813] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 60.440027] pc : idem_hash+0x58/0x800 [ 60.446967] lr : idem_hash+0x58/0x800 [ 60.450785] sp : ffff8000842b3dd0 [ 60.454429] x29: ffff8000842b3dd0 x28: 0000000000000000 x27: 0000000000000000 [ 60.457737] x26: 0000000000000000 x25: ffff000010127880 x24: ffff000010127840 [ 60.464856] x23: ffff8000828cf000 x22: 61c8864680b583eb x21: ffff000003418c28 [ 60.471973] x20: ffff0000044a4800 x19: ffff0000044a4800 x18: 0000000000000000 [ 60.479090] x17: ffff7fffbd4dd000 x16: ffff800080018000 x15: 0000000000000000 [ 60.486208] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 60.493327] x11: 00000000000000c0 x10: 0000000000000b50 x9 : ffff80008163543c [ 60.500444] x8 : ffff8000842b3bd8 x7 : 0000000000000001 x6 : ffff8000828ab000 [ 60.507563] x5 : ffff0000044a4800 x4 : ffff8000828ab3e0 x3 : 0000000000000000 [ 60.514680] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000044a4800 [ 60.521800] Call trace: [ 60.528909] idem_hash+0x58/0x800 (P) [ 60.531168] worker_thread (/builds/linux/kernel/workqueue.c:3353) [ 60.534987] kthread (/builds/linux/kernel/kthread.c:463) [ 60.538631] ret_from_fork (/builds/linux/arch/arm64/kernel/entry.S:861) [ 60.542023] Code: 00000000 00000000 00000000 00000000 (842b3d70) All code ======== ... 10: 842b3d70 .inst 0x842b3d70 ; undefined
Code starting with the faulting instruction =========================================== 0: 842b3d70 .inst 0x842b3d70 ; undefined [ 60.545587] ---[ end trace 0000000000000000 ]--- [ 60.561661] note: kworker/u16:7[252] exited with preempt_count 1 ok 7 test_cpucg_nested_weight_underprovisioned # not ok 2 selftests: cgroup: test_cpu TIMEOUT 45 seconds
## Test filesystems crash log selftests: filesystems: file_stressor TAP version 13 1..1 Starting 1 tests from 1 test cases. RUN file_stressor.slab_typesafe_by_rcu ... [ 316.785677] ------------[ cut here ]------------ [ 316.785733] refcount_t: addition on 0; use-after-free. [ 316.789429] WARNING: lib/refcount.c:25 at refcount_warn_saturate+0x120/0x148, CPU#0: 5/88 [ 316.794336] Modules linked in: pm8916_wdt qcom_wcnss_pil snd_soc_lpass_apq8016 snd_soc_msm8916_analog snd_soc_lpass_cpu snd_soc_apq8016_sbc snd_soc_msm8916_digital snd_soc_lpass_platform snd_soc_qcom_common coresight_cpu_debug snd_soc_core coresight_tmc coresight_replicator snd_compress coresight_funnel snd_pcm_dmaengine coresight_stm stm_core coresight_cti coresight_tpiu snd_pcm coresight snd_timer qrtr msm snd adv7511 qcom_camss qcom_q6v5_mss soundcore qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 316.870196] CPU: 0 UID: 0 PID: 88 Comm: kworker/u16:5 Tainted: G D 6.16.0-next-20250804 #1 PREEMPT [ 316.892345] Tainted: [D]=DIE [ 316.903000] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 316.905873] Workqueue: events_unbound idle_cull_fn [ 316.912553] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 316.917156] pc : refcount_warn_saturate (/builds/linux/lib/refcount.c:25 (discriminator 1)) [ 316.924010] lr : refcount_warn_saturate (/builds/linux/lib/refcount.c:25 (discriminator 1)) [ 316.928870] sp : ffff8000839dbd10 [ 316.933727] x29: ffff8000839dbd10 x28: 0000000000000000 x27: 0000000000000000 [ 316.937208] x26: ffff000003418c28 x25: 0000000000000000 x24: ffff000003418c78 [ 316.944327] x23: 00000000000124f8 x22: ffff8000828a8000 x21: ffff8000839dbd38 [ 316.951444] x20: ffff8000828cf108 x19: ffff000003418c00 x18: 0000000000000006 [ 316.958563] x17: 0000000000000000 x16: 0000000000000000 x15: 0765076507720766 [ 316.965680] x14: 072d077207650774 x13: 0765076507720766 x12: 072d077207650774 [ 316.972799] x11: 0720072007200720 x10: ffff800082931cc0 x9 : ffff8000801ce594 [ 316.979918] x8 : 00000000ffffefff x7 : ffff800082931cc0 x6 : 80000000fffff000 [ 316.987035] x5 : 0000000000000566 x4 : 0000000000000000 x3 : 0000000000000027 [ 316.994153] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000059e0000 [ 317.001272] Call trace: [ 317.008380] refcount_warn_saturate (/builds/linux/lib/refcount.c:25 (discriminator 1)) (P) [ 317.010642] set_worker_dying (/builds/linux/include/linux/refcount.h:289 /builds/linux/include/linux/refcount.h:366 /builds/linux/include/linux/refcount.h:383 /builds/linux/include/linux/sched/task.h:116 /builds/linux/kernel/workqueue.c:2895) [ 317.015500] idle_cull_fn (/builds/linux/kernel/workqueue.c:962 /builds/linux/kernel/workqueue.c:2961) [ 317.019666] process_one_work (/builds/linux/kernel/workqueue.c:3241) [ 317.023225] worker_thread (/builds/linux/kernel/workqueue.c:3313 (discriminator 2) /builds/linux/kernel/workqueue.c:3400 (discriminator 2)) [ 317.027217] kthread (/builds/linux/kernel/kthread.c:463) [ 317.030862] ret_from_fork (/builds/linux/arch/arm64/kernel/entry.S:861) [ 317.034249] ---[ end trace 0000000000000000 ]--- [ 317.047081] ------------[ cut here ]------------ [ 317.047142] refcount_t: saturated; leaking memory. [ 317.051602] WARNING: lib/refcount.c:22 at refcount_warn_saturate+0x74/0x148, CPU#0: 5/88 [ 317.055397] Modules linked in: pm8916_wdt qcom_wcnss_pil snd_soc_lpass_apq8016 snd_soc_msm8916_analog snd_soc_lpass_cpu snd_soc_apq8016_sbc snd_soc_msm8916_digital snd_soc_lpass_platform snd_soc_qcom_common coresight_cpu_debug snd_soc_core coresight_tmc coresight_replicator snd_compress coresight_funnel snd_pcm_dmaengine coresight_stm stm_core coresight_cti coresight_tpiu snd_pcm coresight snd_timer qrtr msm snd adv7511 qcom_camss qcom_q6v5_mss soundcore qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 317.131166] CPU: 0 UID: 0 PID: 88 Comm: kworker/u16:5 Tainted: G D W 6.16.0-next-20250804 #1 PREEMPT [ 317.153317] Tainted: [D]=DIE, [W]=WARN [ 317.163972] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 317.167536] Workqueue: events_unbound idle_cull_fn [ 317.174392] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 317.178993] pc : refcount_warn_saturate (/builds/linux/lib/refcount.c:22 (discriminator 1)) [ 317.185848] lr : refcount_warn_saturate (/builds/linux/lib/refcount.c:22 (discriminator 1)) [ 317.190708] sp : ffff8000839dbcd0 [ 317.195478] x29: ffff8000839dbcd0 x28: 0000000000000000 x27: 0000000000000000 [ 317.198871] x26: ffff000003418c28 x25: 0000000000000000 x24: ffff000003418c78 [ 317.205990] x23: dead000000000122 x22: dead000000000100 x21: ffff8000839dbd38 [ 317.213109] x20: ffff0000044a4828 x19: ffff0000044a4800 x18: 0000000000000000 [ 317.220226] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 317.227345] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 317.234463] x11: 00000000000000c0 x10: 0000000000000b50 x9 : ffff80008163543c [ 317.241581] x8 : ffff8000839db9e8 x7 : 0000000000000001 x6 : 0000000000000001 [ 317.248699] x5 : ffff8000828ab000 x4 : ffff8000828ab3e0 x3 : 0000000000000000 [ 317.255817] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000059e0000 [ 317.262936] Call trace: [ 317.270045] refcount_warn_saturate (/builds/linux/lib/refcount.c:22 (discriminator 1)) (P) [ 317.272306] kthread_stop (/builds/linux/include/linux/refcount.h:291 /builds/linux/include/linux/refcount.h:366 /builds/linux/include/linux/refcount.h:383 /builds/linux/include/linux/sched/task.h:116 /builds/linux/kernel/kthread.c:784) [ 317.277163] kthread_stop_put (/builds/linux/include/linux/sched/task.h:130 /builds/linux/kernel/kthread.c:812) [ 317.280897] idle_cull_fn (/builds/linux/kernel/workqueue.c:2859 /builds/linux/kernel/workqueue.c:2980) [ 317.284541] process_one_work (/builds/linux/kernel/workqueue.c:3241) [ 317.288361] worker_thread (/builds/linux/kernel/workqueue.c:3313 (discriminator 2) /builds/linux/kernel/workqueue.c:3400 (discriminator 2)) [ 317.292353] kthread (/builds/linux/kernel/kthread.c:463) [ 317.295999] ret_from_fork (/builds/linux/arch/arm64/kernel/entry.S:861) [ 317.299386] ---[ end trace 0000000000000000 ]--- [ 317.303294] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 317.307630] Mem abort info: [ 317.316403] ESR = 0x0000000096000004 [ 317.318879] EC = 0x25: DABT (current EL), IL = 32 bits [ 317.322723] SET = 0, FnV = 0 [ 317.328194] EA = 0, S1PTW = 0 [ 317.331025] FSC = 0x04: level 0 translation fault [ 317.334121] Data abort info: [ 317.338933] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 317.342061] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 317.347364] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 317.352515] user pgtable: 4k pages, 48-bit VAs, pgdp=000000008a592000 [ 317.357892] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ 317.364247] Internal error: Oops: 0000000096000004 [#3] SMP [ 317.370923] Modules linked in: pm8916_wdt qcom_wcnss_pil snd_soc_lpass_apq8016 snd_soc_msm8916_analog snd_soc_lpass_cpu snd_soc_apq8016_sbc snd_soc_msm8916_digital snd_soc_lpass_platform snd_soc_qcom_common coresight_cpu_debug snd_soc_core coresight_tmc coresight_replicator snd_compress coresight_funnel snd_pcm_dmaengine coresight_stm stm_core coresight_cti coresight_tpiu snd_pcm coresight snd_timer qrtr msm snd adv7511 qcom_camss qcom_q6v5_mss soundcore qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 317.443145] CPU: 0 UID: 0 PID: 88 Comm: kworker/u16:5 Tainted: G D W 6.16.0-next-20250804 #1 PREEMPT [ 317.465294] Tainted: [D]=DIE, [W]=WARN [ 317.475949] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 317.479516] Workqueue: events_unbound idle_cull_fn [ 317.486370] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 317.490972] pc : kthread_stop (/builds/linux/arch/arm64/include/asm/atomic_ll_sc.h:203 (discriminator 2) /builds/linux/arch/arm64/include/asm/atomic.h:65 (discriminator 2) /builds/linux/include/linux/atomic/atomic-arch-fallback.h:3798 (discriminator 2) /builds/linux/include/linux/atomic/atomic-long.h:1069 (discriminator 2) /builds/linux/include/asm-generic/bitops/atomic.h:18 (discriminator 2) /builds/linux/include/asm-generic/bitops/instrumented-atomic.h:29 (discriminator 2) /builds/linux/kernel/kthread.c:786 (discriminator 2)) [ 317.497825] lr : kthread_stop (/builds/linux/include/linux/refcount.h:291 /builds/linux/include/linux/refcount.h:366 /builds/linux/include/linux/refcount.h:383 /builds/linux/include/linux/sched/task.h:116 /builds/linux/kernel/kthread.c:784) [ 317.501989] sp : ffff8000839dbce0 [ 317.505981] x29: ffff8000839dbce0 x28: 0000000000000000 x27: 0000000000000000 [ 317.509288] x26: ffff000003418c28 x25: 0000000000000000 x24: ffff000003418c78 [ 317.516405] x23: dead000000000122 x22: dead000000000100 x21: 0000000000000000 [ 317.523526] x20: ffff0000044a4828 x19: ffff0000044a4800 x18: 0000000000000000 [ 317.530642] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 317.537762] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 317.544879] x11: 00000000000000c0 x10: 0000000000000b50 x9 : ffff80008163543c [ 317.551996] x8 : ffff8000839db9e8 x7 : 0000000000000001 x6 : 0000000000000001 [ 317.559116] x5 : ffff8000828ab000 x4 : ffff8000828ab3e0 x3 : 0000000000000000 [ 317.566232] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 000000000020804c [ 317.573353] Call trace: [ 317.580461] kthread_stop (/builds/linux/arch/arm64/include/asm/atomic_ll_sc.h:203 (discriminator 2) /builds/linux/arch/arm64/include/asm/atomic.h:65 (discriminator 2) /builds/linux/include/linux/atomic/atomic-arch-fallback.h:3798 (discriminator 2) /builds/linux/include/linux/atomic/atomic-long.h:1069 (discriminator 2) /builds/linux/include/asm-generic/bitops/atomic.h:18 (discriminator 2) /builds/linux/include/asm-generic/bitops/instrumented-atomic.h:29 (discriminator 2) /builds/linux/kernel/kthread.c:786 (discriminator 2)) (P) [ 317.582720] kthread_stop_put (/builds/linux/include/linux/sched/task.h:130 /builds/linux/kernel/kthread.c:812) [ 317.586884] idle_cull_fn (/builds/linux/kernel/workqueue.c:2859 /builds/linux/kernel/workqueue.c:2980) [ 317.590531] process_one_work (/builds/linux/kernel/workqueue.c:3241) [ 317.594351] worker_thread (/builds/linux/kernel/workqueue.c:3313 (discriminator 2) /builds/linux/kernel/workqueue.c:3400 (discriminator 2)) [ 317.598345] kthread (/builds/linux/kernel/kthread.c:463) [ 317.601988] ret_from_fork (/builds/linux/arch/arm64/kernel/entry.S:861) [ 317.605380] Code: c8017e60 35ffffa1 17ffffaf f98002b1 (c85f7ea0) All code ======== 0: c8017e60 stxr w1, x0, [x19] 4: 35ffffa1 cbnz w1, 0xfffffffffffffff8 8: 17ffffaf b 0xfffffffffffffec4 c: f98002b1 prfm pstl1strm, [x21] 10:* c85f7ea0 ldxr x0, [x21] <-- trapping instruction
Code starting with the faulting instruction =========================================== 0: c85f7ea0 ldxr x0, [x21] [ 317.608944] ---[ end trace 0000000000000000 ]---
## Source * Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git * Git sha: 5c5a10f0be967a8950a2309ea965bae54251b50e * Git describe: next-20250804 * Project details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250804 * Architectures: arm64 Dragonboard-410c * Toolchains: gcc-13 * Kconfigs: selftests/*/configs
## Build * Test log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250804/tes... * Test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250804/tes... * Test history: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250804/tes... * Test plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/30oCAeKlwlx... * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/30oC7ut8e7yXWPAtJXayE... * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/30oC7ut8e7yXWPAtJXayE...
-- Linaro LKFT https://lkft.linaro.org
On Tue, Aug 05, 2025 at 12:50:28AM +0530, Naresh Kamboju wrote:
While booting and testing selftest cgroups and filesystem testing on arm64 dragonboard-410c the following kernel warnings / errors noticed and system halted and did not recover with selftests Kconfig enabled running the kernel Linux next tag next-20250804.
Regression Analysis:
- New regression? Yes
- Reproducibility? Re-validation is in progress
First seen on the next-20250804 Good: next-20250801 Bad: next-20250804
Test regression: next-20250804 Unable to handle kernel execute from non-executable memory at virtual address idem_hash Test regression: next-20250804 refcount_t: addition on 0; use-after-free refcount_warn_saturate
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Test crash log [ 9.811341] Unable to handle kernel NULL pointer dereference at virtual address 000000000000002e [ 9.811444] Mem abort info: [ 9.821150] ESR = 0x0000000096000004 [ 9.833499] SET = 0, FnV = 0 [ 9.833566] EA = 0, S1PTW = 0 [ 9.835511] FSC = 0x04: level 0 translation fault [ 9.838901] Data abort info: [ 9.843788] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 9.846565] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 9.851938] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 9.853510] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: registered as rtc0 [ 9.856992] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000856f8000 [ 9.862446] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: setting system clock to 1970-01-01T00:00:31 UTC (31) [ 9.868789] [000000000000002e] pgd=0000000000000000, p4d=0000000000000000 [ 9.875459] Internal error: Oops: 0000000096000004 [#1] SMP [ 9.889547] input: pm8941_pwrkey as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:pwrkey/input/input1 [ 9.891545] Modules linked in: qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon(+) qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 9.912286] input: pm8941_resin as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:resin/input/input2 [ 9.941186] CPU: 2 UID: 0 PID: 221 Comm: (udev-worker) Not tainted 6.16.0-next-20250804 #1 PREEMPT [ 9.941200] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 9.941206] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 9.941215] pc : dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) [ 9.941233] lr : core_clks_enable+0x54/0x148 venus_core [ 10.004266] sp : ffff8000842b35f0 [ 10.004273] x29: ffff8000842b35f0 x28: ffff8000842b3ba0 x27: ffff0000047be938 [ 10.004289] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80007b350ba0 [ 10.004303] x23: ffff00000ba380c8 x22: ffff00000ba38080 x21: 0000000000000000 [ 10.004316] x20: 0000000000000000 x19: ffffffffffffffee x18: 00000000ffffffff [ 10.004330] x17: 0000000000000000 x16: 1fffe000017541a1 x15: ffff8000842b3560 [ 10.004344] x14: 0000000000000000 x13: 007473696c5f7974 x12: 696e696666615f65 [ 10.004358] x11: 00000000000000c0 x10: 0000000000000020 x9 : ffff80007b33f2bc [ 10.004371] x8 : ffffffffffffffde x7 : ffff0000044a4800 x6 : 0000000000000000 [ 10.004384] x5 : 0000000000000002 x4 : 00000000c0000000 x3 : 0000000000000001 [ 10.004397] x2 : 0000000000000002 x1 : ffffffffffffffde x0 : ffffffffffffffee [ 10.004412] Call trace: [ 10.004417] dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) (P) [ 10.004435] core_clks_enable+0x54/0x148 venus_core [ 10.004504] core_power_v1+0x78/0x90 venus_core [ 10.004560] venus_runtime_resume+0x6c/0x98 venus_core [ 10.004616] pm_generic_runtime_resume
Could you try adding some error checking to core_clks_enable()? Does the patch below help?
regards, dan carpenter
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index 8dd5a9b0d060..afc1c69f2f45 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -48,7 +48,8 @@ static int core_clks_enable(struct venus_core *core) int ret;
opp = dev_pm_opp_find_freq_ceil(dev, &freq); - dev_pm_opp_put(opp); + if (!IS_ERR(opp)) + dev_pm_opp_put(opp);
for (i = 0; i < res->clks_num; i++) { if (IS_V6(core)) {
Hi Dan,
On Wed, 6 Aug 2025 at 20:24, Dan Carpenter dan.carpenter@linaro.org wrote:
On Tue, Aug 05, 2025 at 12:50:28AM +0530, Naresh Kamboju wrote:
While booting and testing selftest cgroups and filesystem testing on arm64 dragonboard-410c the following kernel warnings / errors noticed and system halted and did not recover with selftests Kconfig enabled running the kernel Linux next tag next-20250804.
Regression Analysis:
- New regression? Yes
- Reproducibility? Re-validation is in progress
First seen on the next-20250804 Good: next-20250801 Bad: next-20250804
Test regression: next-20250804 Unable to handle kernel execute from non-executable memory at virtual address idem_hash Test regression: next-20250804 refcount_t: addition on 0; use-after-free refcount_warn_saturate
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Test crash log [ 9.811341] Unable to handle kernel NULL pointer dereference at virtual address 000000000000002e [ 9.811444] Mem abort info: [ 9.821150] ESR = 0x0000000096000004 [ 9.833499] SET = 0, FnV = 0 [ 9.833566] EA = 0, S1PTW = 0 [ 9.835511] FSC = 0x04: level 0 translation fault [ 9.838901] Data abort info: [ 9.843788] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 9.846565] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 9.851938] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 9.853510] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: registered as rtc0 [ 9.856992] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000856f8000 [ 9.862446] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: setting system clock to 1970-01-01T00:00:31 UTC (31) [ 9.868789] [000000000000002e] pgd=0000000000000000, p4d=0000000000000000 [ 9.875459] Internal error: Oops: 0000000096000004 [#1] SMP [ 9.889547] input: pm8941_pwrkey as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:pwrkey/input/input1 [ 9.891545] Modules linked in: qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon(+) qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 9.912286] input: pm8941_resin as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:resin/input/input2 [ 9.941186] CPU: 2 UID: 0 PID: 221 Comm: (udev-worker) Not tainted 6.16.0-next-20250804 #1 PREEMPT [ 9.941200] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 9.941206] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 9.941215] pc : dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) [ 9.941233] lr : core_clks_enable+0x54/0x148 venus_core [ 10.004266] sp : ffff8000842b35f0 [ 10.004273] x29: ffff8000842b35f0 x28: ffff8000842b3ba0 x27: ffff0000047be938 [ 10.004289] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80007b350ba0 [ 10.004303] x23: ffff00000ba380c8 x22: ffff00000ba38080 x21: 0000000000000000 [ 10.004316] x20: 0000000000000000 x19: ffffffffffffffee x18: 00000000ffffffff [ 10.004330] x17: 0000000000000000 x16: 1fffe000017541a1 x15: ffff8000842b3560 [ 10.004344] x14: 0000000000000000 x13: 007473696c5f7974 x12: 696e696666615f65 [ 10.004358] x11: 00000000000000c0 x10: 0000000000000020 x9 : ffff80007b33f2bc [ 10.004371] x8 : ffffffffffffffde x7 : ffff0000044a4800 x6 : 0000000000000000 [ 10.004384] x5 : 0000000000000002 x4 : 00000000c0000000 x3 : 0000000000000001 [ 10.004397] x2 : 0000000000000002 x1 : ffffffffffffffde x0 : ffffffffffffffee [ 10.004412] Call trace: [ 10.004417] dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) (P) [ 10.004435] core_clks_enable+0x54/0x148 venus_core [ 10.004504] core_power_v1+0x78/0x90 venus_core [ 10.004560] venus_runtime_resume+0x6c/0x98 venus_core [ 10.004616] pm_generic_runtime_resume
Could you try adding some error checking to core_clks_enable()? Does the patch below help?
Your patch works. The attached patch from Sasha fixes this reported problem on today's Linux next tag.
$ git log --oneline next-20250805..next-20250807 -- drivers/media/platform/qcom/venus/pm_helpers.c 7881cd6886a89 media: venus: Fix OPP table error handling
- Naresh
On Thu, Aug 07, 2025 at 02:51:29PM +0530, Naresh Kamboju wrote:
Hi Dan,
On Wed, 6 Aug 2025 at 20:24, Dan Carpenter dan.carpenter@linaro.org wrote:
On Tue, Aug 05, 2025 at 12:50:28AM +0530, Naresh Kamboju wrote:
While booting and testing selftest cgroups and filesystem testing on arm64 dragonboard-410c the following kernel warnings / errors noticed and system halted and did not recover with selftests Kconfig enabled running the kernel Linux next tag next-20250804.
Regression Analysis:
- New regression? Yes
- Reproducibility? Re-validation is in progress
First seen on the next-20250804 Good: next-20250801 Bad: next-20250804
Test regression: next-20250804 Unable to handle kernel execute from non-executable memory at virtual address idem_hash Test regression: next-20250804 refcount_t: addition on 0; use-after-free refcount_warn_saturate
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Test crash log [ 9.811341] Unable to handle kernel NULL pointer dereference at virtual address 000000000000002e [ 9.811444] Mem abort info: [ 9.821150] ESR = 0x0000000096000004 [ 9.833499] SET = 0, FnV = 0 [ 9.833566] EA = 0, S1PTW = 0 [ 9.835511] FSC = 0x04: level 0 translation fault [ 9.838901] Data abort info: [ 9.843788] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 9.846565] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 9.851938] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 9.853510] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: registered as rtc0 [ 9.856992] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000856f8000 [ 9.862446] rtc-pm8xxx 200f000.spmi:pmic@0:rtc@6000: setting system clock to 1970-01-01T00:00:31 UTC (31) [ 9.868789] [000000000000002e] pgd=0000000000000000, p4d=0000000000000000 [ 9.875459] Internal error: Oops: 0000000096000004 [#1] SMP [ 9.889547] input: pm8941_pwrkey as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:pwrkey/input/input1 [ 9.891545] Modules linked in: qcom_spmi_temp_alarm rtc_pm8xxx qcom_pon(+) qcom_pil_info videobuf2_dma_sg ubwc_config qcom_q6v5 venus_core(+) qcom_sysmon qcom_spmi_vadc v4l2_fwnode llcc_qcom v4l2_async qcom_vadc_common qcom_common ocmem v4l2_mem2mem drm_gpuvm videobuf2_memops qcom_glink_smem videobuf2_v4l2 drm_exec mdt_loader qmi_helpers gpu_sched drm_dp_aux_bus qnoc_msm8916 videodev drm_display_helper qcom_stats videobuf2_common cec qcom_rng drm_client_lib mc phy_qcom_usb_hs socinfo rpmsg_ctrl display_connector rpmsg_char ramoops rmtfs_mem reed_solomon drm_kms_helper fuse drm backlight [ 9.912286] input: pm8941_resin as /devices/platform/soc@0/200f000.spmi/spmi-0/0-00/200f000.spmi:pmic@0:pon@800/200f000.spmi:pmic@0:pon@800:resin/input/input2 [ 9.941186] CPU: 2 UID: 0 PID: 221 Comm: (udev-worker) Not tainted 6.16.0-next-20250804 #1 PREEMPT [ 9.941200] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 9.941206] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 9.941215] pc : dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) [ 9.941233] lr : core_clks_enable+0x54/0x148 venus_core [ 10.004266] sp : ffff8000842b35f0 [ 10.004273] x29: ffff8000842b35f0 x28: ffff8000842b3ba0 x27: ffff0000047be938 [ 10.004289] x26: 0000000000000000 x25: 0000000000000000 x24: ffff80007b350ba0 [ 10.004303] x23: ffff00000ba380c8 x22: ffff00000ba38080 x21: 0000000000000000 [ 10.004316] x20: 0000000000000000 x19: ffffffffffffffee x18: 00000000ffffffff [ 10.004330] x17: 0000000000000000 x16: 1fffe000017541a1 x15: ffff8000842b3560 [ 10.004344] x14: 0000000000000000 x13: 007473696c5f7974 x12: 696e696666615f65 [ 10.004358] x11: 00000000000000c0 x10: 0000000000000020 x9 : ffff80007b33f2bc [ 10.004371] x8 : ffffffffffffffde x7 : ffff0000044a4800 x6 : 0000000000000000 [ 10.004384] x5 : 0000000000000002 x4 : 00000000c0000000 x3 : 0000000000000001 [ 10.004397] x2 : 0000000000000002 x1 : ffffffffffffffde x0 : ffffffffffffffee [ 10.004412] Call trace: [ 10.004417] dev_pm_opp_put (/builds/linux/drivers/opp/core.c:1685) (P) [ 10.004435] core_clks_enable+0x54/0x148 venus_core [ 10.004504] core_power_v1+0x78/0x90 venus_core [ 10.004560] venus_runtime_resume+0x6c/0x98 venus_core [ 10.004616] pm_generic_runtime_resume
Could you try adding some error checking to core_clks_enable()? Does the patch below help?
Your patch works. The attached patch from Sasha fixes this reported problem on today's Linux next tag.
$ git log --oneline next-20250805..next-20250807 -- drivers/media/platform/qcom/venus/pm_helpers.c 7881cd6886a89 media: venus: Fix OPP table error handling
I feel a bit bad about this, because I saw this bug as a static checker warning:
drivers/media/platform/qcom/venus/pm_helpers.c:51 core_clks_enable() error: 'opp' dereferencing possible ERR_PTR()
But I figured that leaving out the error checking was probably deliberate so I didn't report it... I'll go through my list of old warnings and review them again.
$ grep "dereferencing possible ERR_PTR" smatch_warns.txt | wc -l 115
regards, dan carpenter
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Dan Carpenter -
Naresh Kamboju