INFO: task kworker/1:1:81 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:81 tgid:81 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd78 r7:00000002 r6:df945dac r5:82ee8000 r4:82ee8000 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82ee8000 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df945e38 r8:00000000 r7:ffffffff r6:00000000 r5:844d71c0 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:844d71c0 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82ee8000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f035000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df9a1000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:844bbf50 r4:844bbc00 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:844bbf50 r4:82ea0180 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82ee8000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:82ea01ac r4:82ea0180 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df875e90 r8:82ebe280 r7:82ea0180 r6:8026736c r5:82ee8000 r4:82ebeac0 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf945fb0 to 0xdf945ff8) 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 r5:8026e784 r4:82ebeac0 INFO: task kworker/0:2:89 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:89 tgid:89 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd78 r7:00000002 r6:df9addac r5:82eed400 r4:82eed400 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82eed400 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df9ade38 r8:00000000 r7:ffffffff r6:00000000 r5:849eaa40 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:849eaa40 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82eed400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f069000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfcff000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84998b50 r4:84998800 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84998b50 r4:83498900 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82eed400 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:8349892c r4:83498900 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df841e90 r8:82ebe700 r7:83498900 r6:8026736c r5:82eed400 r4:8349ed00 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9adfb0 to 0xdf9adff8) 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 r5:8026e784 r4:8349ed00 INFO: task kworker/0:3:93 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:93 tgid:93 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd78 r7:00000002 r6:df941dac r5:82eeb000 r4:82eeb000 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82eeb000 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df941e38 r8:00000000 r7:ffffffff r6:00000000 r5:849ea700 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:849ea700 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82eeb000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f063000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfc93000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84997f50 r4:84997c00 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84997f50 r4:83498880 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82eeb000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:834988ac r4:83498880 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ade90 r8:82ebe940 r7:83498880 r6:8026736c r5:82eeb000 r4:8349ed00 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf941fb0 to 0xdf941ff8) 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 r5:8026e784 r4:8349ed00 INFO: task kworker/1:2:2769 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:2769 tgid:2769 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd78 r7:00000002 r6:ebb51dac r5:83f73000 r4:83f73000 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:83f73000 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:ebb51e38 r8:00000000 r7:ffffffff r6:00000000 r5:84881840 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84881840 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83f73000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f09b000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:e07b9000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:847f8f50 r4:847f8c00 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:847f8f50 r4:8426a780 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:83f73000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:8426a7ac r4:8426a780 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df875e90 r8:8426bb00 r7:8426a780 r6:8026736c r5:83f73000 r4:8426b900 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xebb51fb0 to 0xebb51ff8) 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 r5:8026e784 r4:8426b900 INFO: task kworker/1:0:2994 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:2994 tgid:2994 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd78 r7:00000002 r6:df975dac r5:8370e000 r4:8370e000 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8370e000 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df975e38 r8:00000000 r7:ffffffff r6:00000000 r5:8488f040 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8488f040 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8370e000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f0a1000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:e084f000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:848cc350 r4:848cc000 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:848cc350 r4:8444b600 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:8370e000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:8444b62c r4:8444b600 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ebb51e90 r8:841de940 r7:8444b600 r6:8026736c r5:8370e000 r4:843b7e40 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf975fb0 to 0xdf975ff8) 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 r5:8026e784 r4:843b7e40 INFO: task kworker/0:1:3001 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:3001 tgid:3001 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd78 r7:00000002 r6:df94ddac r5:82efc800 r4:82efc800 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82efc800 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df94de38 r8:00000000 r7:ffffffff r6:00000000 r5:844b6a00 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:844b6a00 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82efc800 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0b7000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfd7d000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:841b5b50 r4:841b5800 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:841b5b50 r4:841f5e80 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82efc800 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:841f5eac r4:841f5e80 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ade90 r8:8429fd80 r7:841f5e80 r6:8026736c r5:82efc800 r4:842ac680 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf94dfb0 to 0xdf94dff8) 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 r5:8026e784 r4:842ac680 INFO: task kworker/0:4:3004 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:0 pid:3004 tgid:3004 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd78 r7:00000002 r6:df95ddac r5:82efbc00 r4:82efbc00 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82efbc00 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df95de38 r8:00000000 r7:ffffffff r6:00000000 r5:83d41200 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:83d41200 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82efbc00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f017000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df839000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:841b6b50 r4:841b6800 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:841b6b50 r4:841f5a00 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82efbc00 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:841f5a2c r4:841f5a00 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ade90 r8:8440be00 r7:841f5a00 r6:8026736c r5:82efbc00 r4:84458800 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf95dfb0 to 0xdf95dff8) 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 r5:8026e784 r4:84458800 INFO: task kworker/0:5:3007 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:0 pid:3007 tgid:3007 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd78 r7:00000002 r6:df985dac r5:82efe000 r4:82efe000 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82efe000 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df985e38 r8:00000000 r7:ffffffff r6:00000000 r5:849ea800 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:849ea800 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82efe000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f065000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfcb7000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84998350 r4:84998000 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84998350 r4:841e1400 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82efe000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:841e142c r4:841e1400 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ade90 r8:83e72dc0 r7:841e1400 r6:8026736c r5:82efe000 r4:84437080 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf985fb0 to 0xdf985ff8) 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 r5:8026e784 r4:84437080 INFO: task kworker/1:3:3010 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:3010 tgid:3010 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd78 r7:00000002 r6:df9a5dac r5:82efa400 r4:82efa400 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82efa400 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df9a5e38 r8:00000000 r7:ffffffff r6:00000000 r5:8488f180 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8488f180 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82efa400 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f0a3000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:e088b000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:848cc750 r4:848cc400 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:848cc750 r4:8444ba80 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82efa400 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:8444baac r4:8444ba80 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df975e90 r8:82f23180 r7:8444ba80 r6:8026736c r5:82efa400 r4:8444efc0 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9a5fb0 to 0xdf9a5ff8) 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 r5:8026e784 r4:8444efc0 INFO: task kworker/1:4:3011 blocked for more than 450 seconds. Not tainted 6.8.0-rc3-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:3011 tgid:3011 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185706c>] (__schedule) from [<81857ca4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185706c>] (__schedule) from [<81857ca4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd78 r7:00000002 r6:df9a9dac r5:82efd400 r4:82efd400 [<81857c78>] (schedule) from [<81858270>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82efd400 r4:8270dd74 [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858258>] (schedule_preempt_disabled) from [<8185ab58>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185a870>] (__mutex_lock.constprop.0) from [<8185b424>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df9a9e38 r8:00000000 r7:ffffffff r6:00000000 r5:8488b440 r4:00000000 [<8185b410>] (__mutex_lock_slowpath) from [<8185b464>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185b428>] (mutex_lock) from [<8048df34>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048ded4>] (_vm_unmap_aliases) from [<80491ad4>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8488b440 r4:00000000 [<80491964>] (vfree) from [<802ea464>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82efd400 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f0af000 [<802ea434>] (module_memfree) from [<80388aec>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:e0901000 [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388adc>] (bpf_jit_free_exec) from [<80388cac>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388c44>] (bpf_jit_free) from [<80389d8c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:847faf50 r4:847fac00 [<80389c40>] (bpf_prog_free_deferred) from [<80267064>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:847faf50 r4:8444bb00 [<80266ec8>] (process_one_work) from [<802675ac>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266ec8>] (process_one_work) from [<802675ac>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:82efd400 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:8444bb2c r4:8444bb00 [<8026736c>] (worker_thread) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9a5e90 r8:84402740 r7:8444bb00 r6:8026736c r5:82efd400 r4:8444efc0 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9a9fb0 to 0xdf9a9ff8) 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 r5:8026e784 r4:8444efc0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81835bec>] (dump_backtrace) from [<81835ce8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fbd108 [<81835cd0>] (show_stack) from [<81853204>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81835cd0>] (show_stack) from [<81853204>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<818531bc>] (dump_stack_lvl) from [<81853228>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:00000001 [<81853210>] (dump_stack) from [<81823018>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81822eb8>] (nmi_cpu_backtrace) from [<81823164>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c494 r5:8261a7d8 r4:ffffffff [<81823034>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827d8c1f r8:82894eb8 r7:8260c5ec r6:00007d6c r5:8261adc8 r4:848e662c [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347e54>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347e54>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347e54>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<803479c8>] (watchdog) from [<8026e888>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82f44b80 r7:00000000 r6:803479c8 r5:82e90000 r4:82f44a80 [<8026e784>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 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 r5:8026e784 r4:82f44a80 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2796 Comm: klogd Not tainted 6.8.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] LR is at __wake_up_common_lock kernel/sched/wait.c:108 [inline] LR is at __wake_up_sync_key+0x4c/0x54 kernel/sched/wait.c:173 pc : [<8186026c>] lr : [<802a3664>] psr: 60000013 sp : ebb31da0 ip : ebb31db0 fp : ebb31dac r10: 00000000 r9 : ebb31e98 r8 : 83ae0300 r7 : a0000013 r6 : 00000001 r5 : 000000c3 r4 : 8304cf40 r3 : 0000012c r2 : 00000000 r1 : a0000013 r0 : 8304cf40 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 843b6100 DAC: 00000000 Backtrace: [<81860244>] (_raw_spin_unlock_irqrestore) from [<802a3664>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]) [<81860244>] (_raw_spin_unlock_irqrestore) from [<802a3664>] (__wake_up_common_lock kernel/sched/wait.c:108 [inline]) [<81860244>] (_raw_spin_unlock_irqrestore) from [<802a3664>] (__wake_up_sync_key+0x4c/0x54 kernel/sched/wait.c:173) [<802a3618>] (__wake_up_sync_key) from [<81350c94>] (sock_def_readable+0x44/0x11c net/core/sock.c:3343) r7:83fa9e00 r6:0000005b r5:83159b80 r4:83fa9e00 [<81350c50>] (sock_def_readable) from [<815f4cb4>] (unix_dgram_sendmsg+0x52c/0x9d4 net/unix/af_unix.c:2112) r7:83fa9e00 r6:0000005b r5:83159b80 r4:83fa9e00 [<815f4788>] (unix_dgram_sendmsg) from [<8134b570>] (sock_sendmsg_nosec net/socket.c:730 [inline]) [<815f4788>] (unix_dgram_sendmsg) from [<8134b570>] (__sock_sendmsg+0x44/0x78 net/socket.c:745) r10:00000121 r9:83f74800 r8:00000003 r7:83159b80 r6:83159b80 r5:ebb31e98 r4:00000000 [<8134b52c>] (__sock_sendmsg) from [<8134d880>] (__sys_sendto+0x108/0x14c net/socket.c:2191) r7:83159b80 r6:00000000 r5:00004000 r4:00000000 [<8134d778>] (__sys_sendto) from [<8134d908>] (__do_sys_send net/socket.c:2213 [inline]) [<8134d778>] (__sys_sendto) from [<8134d908>] (sys_send+0x20/0x28 net/socket.c:2210) r8:80200288 r7:00000121 r6:76f075a0 r5:76f075a0 r4:014ab1a8 [<8134d8e8>] (sys_send) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xebb31fa8 to 0xebb31ff0) 1fa0: 014ab1a8 76f075a0 00000003 014b2c90 0000005b 00004000 1fc0: 014ab1a8 76f075a0 76f075a0 00000121 00000000 00000013 76dd0e60 014b2c93 1fe0: 00000000 7efc8bc8 76d58460 76d5d918