INFO: task kworker/0:0:7 blocked for more than 450 seconds. Not tainted 6.9.0-rc1-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: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df835d94 r5:82e2c800 r4:82e2c800 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e2c800 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df835e20 r8:00000000 r7:ffffffff r6:00000000 r5:85002b80 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85002b80 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e2c800 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f311000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb1b7000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f54754 r4:84f54400 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f54754 r4:82c0be80 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:82e2c800 r9:82c0beac r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:82c0be80 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e60 r8:82cad740 r7:82c0be80 r6:80267134 r5:82e2c800 r4:82cad140 [<8026ff30>] (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 r5:8026ff30 r4:82cad140 INFO: task kworker/0:1:9 blocked for more than 450 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:9 tgid:9 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df83dd94 r5:82e2e000 r4:82e2e000 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e2e000 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df83de20 r8:00000000 r7:ffffffff r6:00000000 r5:85002a80 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85002a80 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82e2e000 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f185000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eaad1000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f55354 r4:84f55000 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f55354 r4:82c0bf80 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:82e2e000 r9:82c0bfac r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:82c0bf80 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df835e90 r8:82cada00 r7:82c0bf80 r6:80267134 r5:82e2e000 r4:82cad800 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf83dfb0 to 0xdf83dff8) 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 r5:8026ff30 r4:82cad800 INFO: task kworker/1:3:1574 blocked for more than 450 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:1574 tgid:1574 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:82714be8 r7:00000002 r6:eaf01d94 r5:83609800 r4:83609800 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83609800 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:eaf01e20 r8:00000000 r7:ffffffff r6:00000000 r5:84dc8280 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84dc8280 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83609800 r8:00000180 r7:00000000 r6:82c16200 r5:00001000 r4:7f0e9000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eab87000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84ddff54 r4:84ddfc00 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:ddde3f00 r6:82c16200 r5:84ddff54 r4:83d61a80 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83609800 r9:83d61aac r8:61c88647 r7:ddde3f20 r6:82604d40 r5:ddde3f00 r4:83d61a80 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eae59e90 r8:83e523c0 r7:83d61a80 r6:80267134 r5:83609800 r4:83d63280 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeaf01fb0 to 0xeaf01ff8) 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 r5:8026ff30 r4:83d63280 INFO: task kworker/0:2:3010 blocked for more than 450 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:3010 tgid:3010 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df925d94 r5:83d9a400 r4:83d9a400 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83d9a400 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df925e20 r8:00000000 r7:ffffffff r6:00000000 r5:846daa80 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:846daa80 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83d9a400 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f1b7000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eaaf5000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f55b54 r4:84f55800 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f55b54 r4:84250380 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83d9a400 r9:842503ac r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:84250380 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df83de90 r8:8436f6c0 r7:84250380 r6:80267134 r5:83d9a400 r4:83e38980 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf925fb0 to 0xdf925ff8) 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 r5:8026ff30 r4:83e38980 INFO: task kworker/0:3:3014 blocked for more than 450 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:3014 tgid:3014 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df929d94 r5:83ec8000 r4:83ec8000 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83ec8000 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df929e20 r8:00000000 r7:ffffffff r6:00000000 r5:85002200 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85002200 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83ec8000 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f199000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eaaf3000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f55754 r4:84f55400 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f55754 r4:84250b80 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83ec8000 r9:84250bac r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:84250b80 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df83de90 r8:8467e8c0 r7:84250b80 r6:80267134 r5:83ec8000 r4:84383380 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf929fb0 to 0xdf929ff8) 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 r5:8026ff30 r4:84383380 INFO: task kworker/0:4:3015 blocked for more than 450 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:0 pid:3015 tgid:3015 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df96dd94 r5:83ecbc00 r4:83ecbc00 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83ecbc00 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df96de20 r8:00000000 r7:ffffffff r6:00000000 r5:85002640 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85002640 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83ecbc00 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f181000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eaac1000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f54b54 r4:84f54800 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f54b54 r4:84250b00 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83ecbc00 r9:84250b2c r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:84250b00 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df929e90 r8:846226c0 r7:84250b00 r6:80267134 r5:83ecbc00 r4:84245200 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf96dfb0 to 0xdf96dff8) 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 r5:8026ff30 r4:84245200 INFO: task kworker/0:6:3020 blocked for more than 451 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:6 state:D stack:0 pid:3020 tgid:3020 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df985d94 r5:83daa400 r4:83daa400 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83daa400 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df985e20 r8:00000000 r7:ffffffff r6:00000000 r5:85002580 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85002580 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83daa400 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f307000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb19d000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f53b54 r4:84f53800 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f53b54 r4:84250000 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83daa400 r9:8425002c r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:84250000 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df971e90 r8:84622f00 r7:84250000 r6:80267134 r5:83daa400 r4:84052540 [<8026ff30>] (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 r5:8026ff30 r4:84052540 INFO: task kworker/0:7:3021 blocked for more than 451 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:7 state:D stack:0 pid:3021 tgid:3021 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df965d94 r5:83da9800 r4:83da9800 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83da9800 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df965e20 r8:00000000 r7:ffffffff r6:00000000 r5:84707680 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84707680 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83da9800 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f30d000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb1af000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f09754 r4:84f09400 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f09754 r4:83e60200 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83da9800 r9:83e6022c r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:83e60200 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df985e90 r8:82f189c0 r7:83e60200 r6:80267134 r5:83da9800 r4:84052540 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf965fb0 to 0xdf965ff8) 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 r5:8026ff30 r4:84052540 INFO: task kworker/0:8:3023 blocked for more than 451 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:8 state:D stack:0 pid:3023 tgid:3023 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df989d94 r5:83613c00 r4:83613c00 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83613c00 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df989e20 r8:00000000 r7:ffffffff r6:00000000 r5:85002400 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85002400 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83613c00 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f305000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb19b000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f53754 r4:84f53400 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f53754 r4:82f50b80 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83613c00 r9:82f50bac r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:82f50b80 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df985e90 r8:83889dc0 r7:82f50b80 r6:80267134 r5:83613c00 r4:84058c00 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf989fb0 to 0xdf989ff8) 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 r5:8026ff30 r4:84058c00 INFO: task kworker/0:9:3026 blocked for more than 451 seconds. Not tainted 6.9.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:9 state:D stack:0 pid:3026 tgid:3026 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<8189a620>] (__schedule) from [<8189b25c>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a620>] (__schedule) from [<8189b25c>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:df999d94 r5:83616c00 r4:83616c00 [<8189b230>] (schedule) from [<8189b86c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:83616c00 r4:82714be4 [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b854>] (schedule_preempt_disabled) from [<8189e14c>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189de64>] (__mutex_lock.constprop.0) from [<8189ea18>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df999e20 r8:00000000 r7:ffffffff r6:00000000 r5:850022c0 r4:00000000 [<8189ea04>] (__mutex_lock_slowpath) from [<8189ea58>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189ea1c>] (mutex_lock) from [<8049c44c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c3ec>] (_vm_unmap_aliases) from [<804a02d0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:850022c0 r4:00000000 [<804a0160>] (vfree) from [<802ed978>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83616c00 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f303000 [<802ed948>] (module_memfree) from [<80391518>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:eb195000 [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<80391508>] (bpf_jit_free_exec) from [<803916d8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391670>] (bpf_jit_free) from [<803927c0>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:84f53354 r4:84f53000 [<80392674>] (bpf_prog_free_deferred) from [<802665fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:84f53354 r4:8412b300 [<80266444>] (process_one_work) from [<80267320>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266444>] (process_one_work) from [<80267320>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:83616c00 r9:8412b32c r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:8412b300 [<80267134>] (worker_thread) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df989e90 r8:846799c0 r7:8412b300 r6:80267134 r5:83616c00 r4:83f4de40 [<8026ff30>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf999fb0 to 0xdf999ff8) 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 r5:8026ff30 r4:83f4de40 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 PID: 31 Comm: khungtaskd Not tainted 6.9.0-rc1-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<81878e9c>] (dump_backtrace) from [<81878f98>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fc4710 [<81878f80>] (show_stack) from [<81896750>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81878f80>] (show_stack) from [<81896750>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:114) [<818966e0>] (dump_stack_lvl) from [<81896774>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:00000001 [<8189675c>] (dump_stack) from [<81866274>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81866114>] (nmi_cpu_backtrace) from [<818663c0>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c590 r5:8261a88c r4:ffffffff [<81866290>] (nmi_trigger_cpumask_backtrace) from [<802105b4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:8260c6f4 r8:00024041 r7:8289dfe0 r6:00007d6b r5:84d8a604 r4:84f4af24 [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034eab0>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034eab0>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034eab0>] (watchdog+0x480/0x594 kernel/hung_task.c:380) [<8034e630>] (watchdog) from [<80270034>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e98380 r7:00000000 r6:8034e630 r5:82ee8c00 r4:82f421c0 [<8026ff30>] (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 r5:8026ff30 r4:82f421c0 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2809 Comm: syslogd Not tainted 6.9.0-rc1-syzkaller #0 Hardware name: ARM-Versatile Express PC is at preempt_count include/asm-generic/preempt.h:11 [inline] PC is at preempt_count_sub+0x28/0xfc kernel/sched/core.c:5898 LR is at __up_write kernel/locking/rwsem.c:1377 [inline] LR is at up_write+0x50/0x80 kernel/locking/rwsem.c:1632 pc : [<8027b0b0>] lr : [<802ac00c>] psr: 60000013 sp : ec4ede80 ip : ec4ede98 fp : ec4ede94 r10: 81a19bc0 r9 : 011db4d0 r8 : 84385c00 r7 : ec4edef0 r6 : 840b5738 r5 : ec4edf08 r4 : 840b5738 r3 : 83e7bc00 r2 : 00000000 r1 : 00000000 r0 : 00000001 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 84223c00 DAC: 00000000 Call trace: [<8027b088>] (preempt_count_sub) from [<802ac00c>] (__up_write kernel/locking/rwsem.c:1377 [inline]) [<8027b088>] (preempt_count_sub) from [<802ac00c>] (up_write+0x50/0x80 kernel/locking/rwsem.c:1632) [<802abfbc>] (up_write) from [<8045354c>] (inode_unlock include/linux/fs.h:798 [inline]) [<802abfbc>] (up_write) from [<8045354c>] (shmem_file_write_iter+0x58/0x84 mm/shmem.c:2928) r5:ec4edf08 r4:0000007f [<804534f4>] (shmem_file_write_iter) from [<804f7178>] (call_write_iter include/linux/fs.h:2108 [inline]) [<804534f4>] (shmem_file_write_iter) from [<804f7178>] (new_sync_write fs/read_write.c:497 [inline]) [<804534f4>] (shmem_file_write_iter) from [<804f7178>] (vfs_write+0x274/0x438 fs/read_write.c:590) r9:011db4d0 r8:ec4edf68 r7:83e7bc00 r6:0000007f r5:84385c00 r4:804534f4 [<804f6f04>] (vfs_write) from [<804f74c0>] (ksys_write+0x78/0xf8 fs/read_write.c:643) r10:00000004 r9:83e7bc00 r8:80200288 r7:00000000 r6:00009ae6 r5:84385c00 r4:84385c00 [<804f7448>] (ksys_write) from [<804f7550>] (__do_sys_write fs/read_write.c:655 [inline]) [<804f7448>] (ksys_write) from [<804f7550>] (sys_write+0x10/0x14 fs/read_write.c:652) r7:00000004 r6:76ef8548 r5:76f2b5a0 r4:00000003 [<804f7540>] (sys_write) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec4edfa8 to 0xec4edff0) dfa0: 00000003 76f2b5a0 00000003 011db4d0 0000007f 00000000 dfc0: 00000003 76f2b5a0 76ef8548 00000004 0000007f 011db1c8 76ef854c 7efb2c84 dfe0: 76ef7d74 7efb2b80 76e22760 76d7b39c