INFO: task kworker/1:6:4102 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6     state:D stack:0     pid:4102  tgid:4102  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:df9f5d84 r9:00000000 r8:60000113 r7:df9f5d8c r6:829172e8 r5:83e86000
 r4:83e86000
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:83e86000 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df9f5e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8d680
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:83e86000 r7:00000000 r6:83018600 r5:00001000 r4:7f051000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea5e9000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d03794 r4:850bef00
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d03794 r4:850bef00
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:83e86000 r8:82804d80 r7:850bef2c r6:ddde3b40 r5:ddde3b60
 r4:850bef00
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:850bef00 r8:802777a8 r7:df93de68 r6:850be580 r5:83e86000
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdf9f5fb0 to 0xdf9f5ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:852ff400
INFO: task kworker/1:6:4102 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/1:10:4112 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:10    state:D stack:0     pid:4112  tgid:4112  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:dfb95d84 r9:00000000 r8:60000113 r7:dfb95d8c r6:829172e8 r5:857a3000
 r4:857a3000
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:857a3000 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb95e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8db40
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:857a3000 r7:00000000 r6:83018600 r5:00001000 r4:7f055000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea6cf000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8572c794 r4:8516b680
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8572c794 r4:8516b680
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:857a3000 r8:82804d80 r7:8516b6ac r6:ddde3b40 r5:ddde3b60
 r4:8516b680
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:8516b680 r8:802777a8 r7:df9f5e68 r6:8516b900 r5:857a3000
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfb95fb0 to 0xdfb95ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:853fcfc0
INFO: task kworker/1:10:4112 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/0:14:4143 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:14    state:D stack:0     pid:4143  tgid:4143  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:dfc7dd84 r9:00000000 r8:60000013 r7:dfc7dd8c r6:829172e8 r5:844dbc00
 r4:844dbc00
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:844dbc00 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc7de08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e8d580
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:844dbc00 r7:00000000 r6:83018400 r5:00001000 r4:7f035000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfd51000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8567db94 r4:8565b180
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:8567db94 r4:8565b180
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:844dbc00 r8:82804d80 r7:8565b1ac r6:dddcfb40 r5:dddcfb60
 r4:8565b180
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:8565b180 r8:802777a8 r7:dfb69e68 r6:8565be00 r5:844dbc00
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfc7dfb0 to 0xdfc7dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:85642e80
INFO: task kworker/0:14:4143 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/1:132:4663 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:132   state:D stack:0     pid:4663  tgid:4663  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea561d84 r9:00000000 r8:60000013 r7:ea561d8c r6:829172e8 r5:8527b000
 r4:8527b000
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:8527b000 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea561e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852ff740
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527b000 r7:00000000 r6:83018600 r5:00001000 r4:7f057000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea77f000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8572df94 r4:85431480
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8572df94 r4:85431480
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527b000 r8:82804d80 r7:854314ac r6:ddde3b40 r5:ddde3b60
 r4:85431480
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431480 r8:802777a8 r7:ea555e68 r6:85431500 r5:8527b000
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea561fb0 to 0xea561ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/1:132:4663 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/1:133:4682 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:133   state:D stack:0     pid:4682  tgid:4682  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea5f5d84 r9:00000000 r8:60000113 r7:ea5f5d8c r6:829172e8 r5:85279800
 r4:85279800
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85279800 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea5f5e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8de80
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85279800 r7:00000000 r6:83018600 r5:00001000 r4:7f053000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea657000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85729f94 r4:85431d80
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85729f94 r4:85431d80
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85279800 r8:82804d80 r7:85431dac r6:ddde3b40 r5:ddde3b60
 r4:85431d80
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431d80 r8:802777a8 r7:ea555e68 r6:85431e80 r5:85279800
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea5f5fb0 to 0xea5f5ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855df5c0
INFO: task kworker/1:133:4682 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/0:166:4763 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:166   state:D stack:0     pid:4763  tgid:4763  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea819d84 r9:00000000 r8:60000113 r7:ea819d8c r6:829172e8 r5:85b99800
 r4:85b99800
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85b99800 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea819e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c1b440
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85b99800 r7:00000000 r6:83018400 r5:00001000 r4:7f02f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfc0d000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d43394 r4:85c16f80
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:85d43394 r4:85c16f80
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85b99800 r8:82804d80 r7:85c16fac r6:dddcfb40 r5:dddcfb60
 r4:85c16f80
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85c16f80 r8:802777a8 r7:ea6a5e68 r6:85c16b80 r5:85b99800
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea819fb0 to 0xea819ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855e3580
INFO: task kworker/0:166:4763 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/0:167:4766 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:167   state:D stack:0     pid:4766  tgid:4766  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea6add84 r9:00000000 r8:60000113 r7:ea6add8c r6:829172e8 r5:85b9ec00
 r4:85b9ec00
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85b9ec00 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6ade08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:855d6240
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85b9ec00 r7:00000000 r6:83018400 r5:00001000 r4:7f037000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfda1000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:853f5f94 r4:85c16580
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:853f5f94 r4:85c16580
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85b9ec00 r8:82804d80 r7:85c165ac r6:dddcfb40 r5:dddcfb60
 r4:85c16580
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85c16580 r8:802777a8 r7:ea819e68 r6:85c16080 r5:85b9ec00
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6adfb0 to 0xea6adff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:846ccd40
INFO: task kworker/0:167:4766 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/0:168:4768 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:168   state:D stack:0     pid:4768  tgid:4768  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea7c1d84 r9:00000000 r8:60000013 r7:ea7c1d8c r6:829172e8 r5:85cc3000
 r4:85cc3000
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85cc3000 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea7c1e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c1b540
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85cc3000 r7:00000000 r6:83018400 r5:00001000 r4:7f031000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfca1000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d41394 r4:855ca080
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:85d41394 r4:855ca080
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85cc3000 r8:82804d80 r7:855ca0ac r6:dddcfb40 r5:dddcfb60
 r4:855ca080
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:855ca080 r8:802777a8 r7:ea819e68 r6:855ca100 r5:85cc3000
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea7c1fb0 to 0xea7c1ff8)
1fa0:                                     00000000 00000000 00000000 00000000
1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:8555c2c0
INFO: task kworker/0:168:4768 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/0:169:4769 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:169   state:D stack:0     pid:4769  tgid:4769  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea6a9d84 r9:00000000 r8:60000013 r7:ea6a9d8c r6:829172e8 r5:85b9bc00
 r4:85b9bc00
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85b9bc00 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6a9e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852f8980
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85b9bc00 r7:00000000 r6:83018400 r5:00001000 r4:7f02b000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfb77000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:853d8f94 r4:855ca280
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:853d8f94 r4:855ca280
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85b9bc00 r8:82804d80 r7:855ca2ac r6:dddcfb40 r5:dddcfb60
 r4:855ca280
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:855ca280 r8:802777a8 r7:ea819e68 r6:855ca300 r5:85b9bc00
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6a9fb0 to 0xea6a9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:8562edc0
INFO: task kworker/0:169:4769 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
INFO: task kworker/0:170:4771 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:170   state:D stack:0     pid:4771  tgid:4771  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea7c9d84 r9:00000000 r8:60000013 r7:ea7c9d8c r6:829172e8 r5:85ba0000
 r4:85ba0000
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85ba0000 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea7c9e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c1bb00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85ba0000 r7:00000000 r6:83018400 r5:00001000 r4:7f033000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfd03000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d41794 r4:855ca480
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:85d41794 r4:855ca480
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85ba0000 r8:82804d80 r7:855ca4ac r6:dddcfb40 r5:dddcfb60
 r4:855ca480
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:855ca480 r8:802777a8 r7:ea819e68 r6:855ca580 r5:85ba0000
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea7c9fb0 to 0xea7c9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:85c1b300
INFO: task kworker/0:170:4771 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:171:4775 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:171   state:D stack:0     pid:4775  tgid:4775  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea84dd84 r9:00000000 r8:60000013 r7:ea84dd8c r6:829172e8 r5:85ba1800
 r4:85ba1800
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85ba1800 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea84de08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85c1b040
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85ba1800 r7:00000000 r6:83018400 r5:00001000 r4:7f02d000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfbd1000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8572bb94 r4:855ca680
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:8572bb94 r4:855ca680
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85ba1800 r8:82804d80 r7:855ca6ac r6:dddcfb40 r5:dddcfb60
 r4:855ca680
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:855ca680 r8:802777a8 r7:ea6a9e68 r6:855ca700 r5:85ba1800
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea84dfb0 to 0xea84dff8)
dfa0:                                     00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:846cc380
INFO: task kworker/0:171:4775 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:174:4781 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:174   state:D stack:0     pid:4781  tgid:4781  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea7c5d84 r9:00000000 r8:60000013 r7:ea7c5d8c r6:829172e8 r5:85cd0000
 r4:85cd0000
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85cd0000 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea7c5e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852f8e40
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85cd0000 r7:00000000 r6:83018400 r5:00001000 r4:7f00d000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfb11000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8572a394 r4:855cab80
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:8572a394 r4:855cab80
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85cd0000 r8:82804d80 r7:855cabac r6:dddcfb40 r5:dddcfb60
 r4:855cab80
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:855cab80 r8:802777a8 r7:ea725e68 r6:8555fe80 r5:85cd0000
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea7c5fb0 to 0xea7c5ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:8555cb00
INFO: task kworker/0:174:4781 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task kworker/0:178:4789 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:178   state:D stack:0     pid:4789  tgid:4789  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81aa9bfc>] (__schedule) from [<81aaae8c>] (schedule+0x2c/0x134 kernel/sched/core.c:6964)
 r10:ea799d84 r9:00000000 r8:60000013 r7:ea799d8c r6:829172e8 r5:85cd3c00
 r4:85cd3c00
[<81aaae60>] (schedule) from [<81aab018>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:85cd3c00 r4:829172e4
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81aab000>] (schedule_preempt_disabled) from [<81aae5e0>] (__mutex_lock.constprop.0+0x584/0xf10 kernel/locking/mutex.c:776)
[<81aae05c>] (__mutex_lock.constprop.0) from [<81aaf040>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea799e08
 r4:00000000
[<81aaf02c>] (__mutex_lock_slowpath) from [<81aaf080>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81aaf044>] (mutex_lock) from [<804f0fe8>] (_vm_unmap_aliases+0x5c/0x238 mm/vmalloc.c:2944)
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018405 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852f82c0
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:85cd3c00 r7:00000000 r6:83018400 r5:00001000 r4:7f00b000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:dfaa1000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8572b394 r4:855cae80
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:8572b394 r4:855cae80
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:85cd3c00 r8:82804d80 r7:855caeac r6:dddcfb40 r5:dddcfb60
 r4:855cae80
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:855cae80 r8:802777a8 r7:ea77de68 r6:85d65080 r5:85cd3c00
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea799fb0 to 0xea799ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:85d689c0
INFO: task kworker/0:178:4789 is blocked on a mutex likely owned by task kworker/1:131:4662.
task:kworker/1:131   state:R  running task     stack:0     pid:4662  tgid:4662  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81aa9bfc>] (__schedule) from [<81aab2c4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:8527a400 r8:80200c04 r7:ea555d5c r6:ffffffff r5:8527a400
 r4:00000000
[<81aab284>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea555d28 to 0xea555d70)
5d20:                   a981c000 ebde3000 00000001 802394d0 82ace620 82acf264
5d40: 7f00b000 ebde3000 00000000 00000001 8280c838 ea555d9c ebde3000 ea555d78
5d60: 8023043c 802394e8 80000113 ffffffff
 r5:80000113 r4:802394e8
[<802303dc>] (flush_tlb_kernel_range) from [<804f0d9c>] (__purge_vmap_area_lazy+0x260/0x450 mm/vmalloc.c:2369)
[<804f0b3c>] (__purge_vmap_area_lazy) from [<804f1174>] (_vm_unmap_aliases+0x1e8/0x238 mm/vmalloc.c:2983)
 r10:00000000 r9:ea555dc0 r8:00000000 r7:ffffffff r6:00000008 r5:ea555e08
 r4:ea555dc0
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f0f8c>] (_vm_unmap_aliases) from [<804f4ccc>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83018605 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a8df00
 r4:00000000
[<804f4b60>] (vfree) from [<805607fc>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83016170 r8:8527a400 r7:00000000 r6:83018600 r5:00001000 r4:7f04f000
[<805607cc>] (execmem_free) from [<803ca974>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea547000
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803ca964>] (bpf_jit_free_exec) from [<803cad54>] (bpf_jit_free+0x64/0xe0 kernel/bpf/core.c:1237)
[<803cacf0>] (bpf_jit_free) from [<803cbc74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85d00394 r4:85431300
[<803cbb34>] (bpf_prog_free_deferred) from [<80276cec>] (process_one_work+0x1b8/0x4f8 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85d00394 r4:85431300
[<80276b34>] (process_one_work) from [<8027796c>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80276b34>] (process_one_work) from [<8027796c>] (worker_thread+0x1c4/0x394 kernel/workqueue.c:3421)
 r10:61c88647 r9:8527a400 r8:82804d80 r7:8543132c r6:ddde3b40 r5:ddde3b60
 r4:85431300
[<802777a8>] (worker_thread) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:85431300 r8:802777a8 r7:ea5dde68 r6:85431380 r5:8527a400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea555fb0 to 0xea555ff8)
5fa0:                                     00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:855cdbc0
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a40>] (dump_backtrace) from [<80201b34>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:600e0093 r6:600e0093 r5:822a2110 r4:00000000
[<80201b1c>] (show_stack) from [<8021ed6c>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b1c>] (show_stack) from [<8021ed6c>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021ed10>] (dump_stack_lvl) from [<8021ed98>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:00000000 r6:000e0013 r5:00000000 r4:00000001
[<8021ed80>] (dump_stack) from [<81a9383c>] (nmi_cpu_backtrace+0x150/0x170 lib/nmi_backtrace.c:113)
[<81a936ec>] (nmi_cpu_backtrace) from [<81a9398c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8280c510 r5:8281ad9c r4:ffffffff
[<81a9385c>] (nmi_trigger_cpumask_backtrace) from [<8022fe60>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:82ac382c r8:8280c690 r7:82804d80 r6:85cd43f0 r5:00007bdc r4:00000048
[<8022fe48>] (arch_trigger_cpumask_backtrace) from [<81a9b470>] (trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline])
[<8022fe48>] (arch_trigger_cpumask_backtrace) from [<81a9b470>] (__sys_info lib/sys_info.c:157 [inline])
[<8022fe48>] (arch_trigger_cpumask_backtrace) from [<81a9b470>] (sys_info+0x68/0xa8 lib/sys_info.c:165)
[<81a9b408>] (sys_info) from [<80382fc4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline])
[<81a9b408>] (sys_info) from [<80382fc4>] (watchdog+0x458/0x888 kernel/hung_task.c:515)
 r5:00007bdc r4:8610f50c
[<80382b6c>] (watchdog) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:80382b6c r7:832a3e00 r6:832a3e00 r5:832e2400
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
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
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:8336b080
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2813 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT 
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 __uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline]
LR is at pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603
pc : [<81ab4ad0>]    lr : [<80aa46a4>]    psr: 60000013
sp : eb1e9eb0  ip : eb1e9ec0  fp : eb1e9ebc
r10: 8295971c  r9 : 00000001  r8 : 00000000
r7 : 00000117  r6 : 82959680  r5 : 00000000  r4 : 00000001
r3 : 00000797  r2 : 00000000  r1 : 60000013  r0 : 846c0c40
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 85182840  DAC: 00000000
Call trace: 
[<81ab4aa8>] (_raw_spin_unlock_irqrestore) from [<80aa46a4>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81ab4aa8>] (_raw_spin_unlock_irqrestore) from [<80aa46a4>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81ab4aa8>] (_raw_spin_unlock_irqrestore) from [<80aa46a4>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80aa4684>] (pl011_console_device_unlock) from [<802e5108>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149)
[<802e5080>] (nbcon_emit_one) from [<802e5388>] (nbcon_kthread_func+0x208/0x2ec kernel/printk/nbcon.c:1255)
 r6:82ac0104 r5:82959680 r4:844dc800
[<802e5180>] (nbcon_kthread_func) from [<8027facc>] (kthread+0x128/0x27c kernel/kthread.c:463)
 r10:00000000 r9:82959680 r8:802e5180 r7:84708e00 r6:84708e00 r5:844dc800
 r4:00000001
[<8027f9a4>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeb1e9fb0 to 0xeb1e9ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f9a4
 r4:85034d80