INFO: task kworker/0:0:7 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:0 pid:7 tgid:7 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df835d94 r5:82e2c800 r4:82e2c800 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e2c800 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df835e20 r8:00000000 r7:ffffffff r6:00000000 r5:84bb6480 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84bb6480 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e2c800 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f2e5000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb001000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84187f54 r4:84187c00 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:84187f54 r4:82c0be80 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:82e2c800 r9:82c0beac r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:82c0be80 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e60 r8:82cad740 r7:82c0be80 r6:80267170 r5:82e2c800 r4:82cad140 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf835fb0 to 0xdf835ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:82cad140 INFO: task kworker/1:0:23 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:23 tgid:23 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:82714be8 r7:00000002 r6:df879d94 r5:82e3a400 r4:82e3a400 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e3a400 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df879e20 r8:00000000 r7:ffffffff r6:00000000 r5:8483d940 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8483d940 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e3a400 r8:00000180 r7:00000000 r6:82c16200 r5:00001000 r4:7f08f000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:dfd27000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84902754 r4:84902400 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:ddde40c0 r6:82c16200 r5:84902754 r4:82caf100 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:82e3a400 r9:82caf12c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:82caf100 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819d60 r8:82cc0d00 r7:82caf100 r6:80267170 r5:82e3a400 r4:82cc0ac0 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf879fb0 to 0xdf879ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:82cc0ac0 INFO: task kworker/1:2:47 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:47 tgid:47 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:82714be8 r7:00000002 r6:df921d94 r5:82e53000 r4:82e53000 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e53000 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df921e20 r8:00000000 r7:ffffffff r6:00000000 r5:84976040 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84976040 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e53000 r8:00000180 r7:00000000 r6:82c16200 r5:00001000 r4:7f097000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:dfd7f000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:8490c754 r4:8490c400 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:ddde40c0 r6:82c16200 r5:8490c754 r4:82eb0e80 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:82e53000 r9:82eb0eac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:82eb0e80 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df915e90 r8:82f42880 r7:82eb0e80 r6:80267170 r5:82e53000 r4:82eb5300 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf921fb0 to 0xdf921ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:82eb5300 INFO: task kworker/1:1:3012 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:3012 tgid:3012 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:82714be8 r7:00000002 r6:df891d94 r5:8369c800 r4:8369c800 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:8369c800 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df891e20 r8:00000000 r7:ffffffff r6:00000000 r5:8483d680 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8483d680 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8369c800 r8:00000180 r7:00000000 r6:82c16200 r5:00001000 r4:7f08b000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:dfcf9000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84901f54 r4:84901c00 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:ddde40c0 r6:82c16200 r5:84901f54 r4:8467c980 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:8369c800 r9:8467c9ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:8467c980 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df921e90 r8:82f425c0 r7:8467c980 r6:80267170 r5:8369c800 r4:840aa580 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf891fb0 to 0xdf891ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:840aa580 INFO: task kworker/0:3:3017 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:3017 tgid:3017 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df949d94 r5:8369ec00 r4:8369ec00 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:8369ec00 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df949e20 r8:00000000 r7:ffffffff r6:00000000 r5:8482bc00 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8482bc00 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8369ec00 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f139000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:e0995000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:848fc754 r4:848fc400 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:848fc754 r4:84683480 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:8369ec00 r9:846834ac r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:84683480 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:82cc86c0 r7:84683480 r6:80267170 r5:8369ec00 r4:84680c00 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf949fb0 to 0xdf949ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:84680c00 INFO: task kworker/0:4:3019 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:0 pid:3019 tgid:3019 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df98dd94 r5:8369e000 r4:8369e000 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:8369e000 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df98de20 r8:00000000 r7:ffffffff r6:00000000 r5:849aa380 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:849aa380 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8369e000 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f017000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:df885000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:848ca354 r4:848ca000 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:848ca354 r4:84683500 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:8369e000 r9:8468352c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:84683500 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:8467b180 r7:84683500 r6:80267170 r5:8369e000 r4:8467b040 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf98dfb0 to 0xdf98dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:8467b040 INFO: task kworker/0:5:3020 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:0 pid:3020 tgid:3020 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df995d94 r5:83699800 r4:83699800 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83699800 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df995e20 r8:00000000 r7:ffffffff r6:00000000 r5:84a95e40 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84a95e40 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83699800 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f013000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:df94b000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:848cab54 r4:848ca800 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:848cab54 r4:84683580 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:83699800 r9:846835ac r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:84683580 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:82f86600 r7:84683580 r6:80267170 r5:83699800 r4:82f86780 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf995fb0 to 0xdf995ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:82f86780 INFO: task kworker/0:6:3023 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:6 state:D stack:0 pid:3023 tgid:3023 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df9b5d94 r5:82e2ec00 r4:82e2ec00 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e2ec00 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df9b5e20 r8:00000000 r7:ffffffff r6:00000000 r5:84b039c0 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84b039c0 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e2ec00 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f04b000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:df98f000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:848cb754 r4:848cb400 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:848cb754 r4:84683600 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:82e2ec00 r9:8468362c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:84683600 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:82f865c0 r7:84683600 r6:80267170 r5:82e2ec00 r4:8467b040 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9b5fb0 to 0xdf9b5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:8467b040 INFO: task kworker/0:7:3025 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:7 state:D stack:0 pid:3025 tgid:3025 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df9b9d94 r5:82e2d400 r4:82e2d400 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e2d400 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df9b9e20 r8:00000000 r7:ffffffff r6:00000000 r5:84545280 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84545280 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e2d400 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f22f000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb249000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84b36f54 r4:84b36c00 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:84b36f54 r4:84683680 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:82e2d400 r9:846836ac r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:84683680 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:837951c0 r7:84683680 r6:80267170 r5:82e2d400 r4:83795140 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9b9fb0 to 0xdf9b9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:83795140 INFO: task kworker/0:8:3027 blocked for more than 450 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:8 state:D stack:0 pid:3027 tgid:3027 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818c39a0>] (__schedule) from [<818c45a4>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c39a0>] (__schedule) from [<818c45a4>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df9c5d94 r5:82e3c800 r4:82e3c800 [<818c4578>] (schedule) from [<818c4bb4>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e3c800 r4:82714be4 [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b9c>] (schedule_preempt_disabled) from [<818c7494>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c71ac>] (__mutex_lock.constprop.0) from [<818c7d60>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df9c5e20 r8:00000000 r7:ffffffff r6:00000000 r5:8472bc40 r4:00000000 [<818c7d4c>] (__mutex_lock_slowpath) from [<818c7da0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d64>] (mutex_lock) from [<8049ca3c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2804) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vm_reset_perms mm/vmalloc.c:3251 [inline]) [<8049c9dc>] (_vm_unmap_aliases) from [<804a08cc>] (vfree+0x170/0x1e4 mm/vmalloc.c:3330) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8472bc40 r4:00000000 [<804a075c>] (vfree) from [<802eda60>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e3c800 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f335000 [<802eda30>] (module_memfree) from [<80391540>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb761000 [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391530>] (bpf_jit_free_exec) from [<80391700>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391698>] (bpf_jit_free) from [<803927e8>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84181354 r4:84181000 [<8039269c>] (bpf_prog_free_deferred) from [<80266638>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3267) r7:dddd00c0 r6:82c16000 r5:84181354 r4:84683700 [<80266480>] (process_one_work) from [<8026735c>] (process_scheduled_works kernel/workqueue.c:3348 [inline]) [<80266480>] (process_one_work) from [<8026735c>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3429) r10:82e3c800 r9:8468372c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:84683700 [<80267170>] (worker_thread) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:837955c0 r7:84683700 r6:80267170 r5:82e3c800 r4:83795480 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9c5fb0 to 0xdf9c5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:83795480 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 PID: 31 Comm: khungtaskd Not tainted 6.9.0-rc6-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<818a227c>] (dump_backtrace) from [<818a2378>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fcedd0 [<818a2360>] (show_stack) from [<818bfad0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818a2360>] (show_stack) from [<818bfad0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:114) [<818bfa60>] (dump_stack_lvl) from [<818bfaf4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000001 r4:00000001 [<818bfadc>] (dump_stack) from [<8188f654>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<8188f4f4>] (nmi_cpu_backtrace) from [<8188f7a0>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c590 r5:8261a88c r4:ffffffff [<8188f670>] (nmi_trigger_cpumask_backtrace) from [<802105b4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:8260c6f4 r8:00024027 r7:8289ffe0 r6:00007d6b r5:84211a04 r4:84e3ef24 [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034ead0>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034ead0>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034ead0>] (watchdog+0x480/0x594 kernel/hung_task.c:380) [<8034e650>] (watchdog) from [<80270070>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e98400 r7:00000000 r6:8034e650 r5:82ee8c00 r4:82f42280 [<8026ff6c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8ddfb0 to 0xdf8ddff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff6c r4:82f42280 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2816 Comm: klogd Not tainted 6.9.0-rc6-syzkaller #0 Hardware name: ARM-Versatile Express PC is at walk_stackframe+0x24/0x44 arch/arm/kernel/stacktrace.c:135 LR is at walk_stackframe+0x24/0x44 arch/arm/kernel/stacktrace.c:135 pc : [<8020c17c>] lr : [<8020c17c>] psr: 20000013 sp : ec271d58 ip : ec271d58 fp : ec271d74 r10: 839a386c r9 : 82efec00 r8 : 839a3600 r7 : 00000000 r6 : 8020d12c r5 : ec271d7c r4 : ec271d84 r3 : 00000002 r2 : ec271d7c r1 : 8020d15c r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 844ac280 DAC: fffffffd Call trace: [<8020c158>] (walk_stackframe) from [<8020d1c0>] (return_address+0x64/0x174 arch/arm/kernel/return_address.c:52) r7:00000000 r6:818cccf8 r5:00000001 r4:00000000 [<8020d15c>] (return_address) from [<8027cb3c>] (get_lock_parent_ip include/linux/ftrace.h:976 [inline]) [<8020d15c>] (return_address) from [<8027cb3c>] (preempt_latency_start kernel/sched/core.c:5852 [inline]) [<8020d15c>] (return_address) from [<8027cb3c>] (preempt_count_add+0x124/0x150 kernel/sched/core.c:5877) r4:82efec00 [<8027ca18>] (preempt_count_add) from [<818cccf8>] (__raw_spin_lock include/linux/spinlock_api_smp.h:132 [inline]) [<8027ca18>] (preempt_count_add) from [<818cccf8>] (_raw_spin_lock+0x18/0x58 kernel/locking/spinlock.c:154) r6:0000004a r5:83054c80 r4:839a386c [<818ccce0>] (_raw_spin_lock) from [<81655008>] (spin_lock include/linux/spinlock.h:351 [inline]) [<818ccce0>] (_raw_spin_lock) from [<81655008>] (unix_peer_get net/unix/af_unix.c:239 [inline]) [<818ccce0>] (_raw_spin_lock) from [<81655008>] (unix_dgram_sendmsg+0x3f4/0x910 net/unix/af_unix.c:1994) r5:83054c80 r4:ec271e98 [<81654c14>] (unix_dgram_sendmsg) from [<813a3800>] (sock_sendmsg_nosec net/socket.c:730 [inline]) [<81654c14>] (unix_dgram_sendmsg) from [<813a3800>] (__sock_sendmsg+0x44/0x78 net/socket.c:745) r10:00000121 r9:82efec00 r8:00000003 r7:83054c80 r6:83054c80 r5:ec271e98 r4:00000000 [<813a37bc>] (__sock_sendmsg) from [<813a5b34>] (__sys_sendto+0x108/0x14c net/socket.c:2191) r7:83054c80 r6:00000000 r5:00004000 r4:00000000 [<813a5a2c>] (__sys_sendto) from [<813a5bbc>] (__do_sys_send net/socket.c:2213 [inline]) [<813a5a2c>] (__sys_sendto) from [<813a5bbc>] (sys_send+0x20/0x28 net/socket.c:2210) r8:80200288 r7:00000121 r6:76f2c5a0 r5:76f2c5a0 r4:00caf1a8 [<813a5b9c>] (sys_send) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec271fa8 to 0xec271ff0) 1fa0: 00caf1a8 76f2c5a0 00000003 00cb6538 0000004a 00004000 1fc0: 00caf1a8 76f2c5a0 76f2c5a0 00000121 00000000 00000013 76e00e60 00cb653b 1fe0: 00000000 7ed1ebc8 76d88460 76d8d918