INFO: task kworker/0:13:4124 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:13    state:D stack:0     pid:4124  tgid:4124  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:dfc61d84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfc61d8c r5:8330a400
 r4:8330a400
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:8330a400 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfc61e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84d421c0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:8330a400 r7:00000000 r6:83018400 r5:00001000 r4:7f03d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e0271000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86080794 r4:85ebb180
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:86080794 r4:85ebb180
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:8330a400 r8:85ebb1ac r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:85ebb180
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85ebb180 r8:802762fc r7:dfc25e60 r6:85ebfc00 r5:8330a400
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfc61fb0 to 0xdfc61ff8)
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 r5:8027f5d0
 r4:84d42300
INFO: task kworker/0:13:4124 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b6666000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/0:17:4133 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:17    state:D stack:0     pid:4133  tgid:4133  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:dfb91d84 r9:829172a8 r8:60000113 r7:829172a8 r6:dfb91d8c r5:844f9800
 r4:844f9800
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:844f9800 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfb91e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f37180
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:844f9800 r7:00000000 r6:83018400 r5:00001000 r4:7f03b000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e01cd000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86080394 r4:85ebb580
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:86080394 r4:85ebb580
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:844f9800 r8:85ebb5ac r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:85ebb580
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85ebb580 r8:802762fc r7:dfce5e60 r6:85ebb600 r5:844f9800
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xdfb91fb0 to 0xdfb91ff8)
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 r5:8027f5d0
 r4:85f5f900
INFO: task kworker/0:17:4133 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b6666000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/0:118:4656 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:118   state:D stack:0     pid:4656  tgid:4656  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea63dd84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea63dd8c r5:84cc1800
 r4:84cc1800
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:84cc1800 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea63de08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f2e740
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018405 r8:84cc1800 r7:00000000 r6:83018400 r5:00001000 r4:7f04f000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea821000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86083794 r4:85f26c00
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:dddcfb40 r6:83018400 r5:86083794 r4:85f26c00
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc1800 r8:85f26c2c r7:82804d80 r6:dddcfb40 r5:dddcfb60
 r4:85f26c00
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f26c00 r8:802762fc r7:e0155e60 r6:85f26b80 r5:84cc1800
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea63dfb0 to 0xea63dff8)
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 r5:8027f5d0
 r4:85f327c0
INFO: task kworker/0:118:4656 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b688d000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:170:4707 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:170   state:D stack:0     pid:4707  tgid:4707  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea7bdd84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea7bdd8c r5:86030c00
 r4:86030c00
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:86030c00 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea7bde08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f322c0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:86030c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02f000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e4389000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86041794 r4:85f38300
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86041794 r4:85f38300
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:86030c00 r8:85f3832c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38300
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38300 r8:802762fc r7:ea73de60 r6:85f38280 r5:86030c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea7bdfb0 to 0xea7bdff8)
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 r5:8027f5d0
 r4:85f33040
INFO: task kworker/1:170:4707 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b6e91000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:173:4716 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:173   state:D stack:0     pid:4716  tgid:4716  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea699d84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea699d8c r5:84cc3c00
 r4:84cc3c00
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:84cc3c00 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea699e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:860b2700
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc3c00 r7:00000000 r6:83018600 r5:00001000 r4:7f03f000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e8425000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:8605f394 r4:85f38700
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:8605f394 r4:85f38700
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc3c00 r8:85f3872c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38700
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38700 r8:802762fc r7:ea7bde60 r6:85f35880 r5:84cc3c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea699fb0 to 0xea699ff8)
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 r5:8027f5d0
 r4:85f33f00
INFO: task kworker/1:173:4716 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b71ab000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:174:4718 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:174   state:D stack:0     pid:4718  tgid:4718  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea695d84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea695d8c r5:86033c00
 r4:86033c00
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:86033c00 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea695e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f39000
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:86033c00 r7:00000000 r6:83018600 r5:00001000 r4:7f047000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea6f5000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86065794 r4:85f38800
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86065794 r4:85f38800
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:86033c00 r8:85f3882c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38800
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38800 r8:802762fc r7:ea699e60 r6:85f38880 r5:86033c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea695fb0 to 0xea695ff8)
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 r5:8027f5d0
 r4:85f33600
INFO: task kworker/1:174:4718 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b71ab000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:175:4721 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:175   state:D stack:0     pid:4721  tgid:4721  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea6a1d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea6a1d8c r5:86016c00
 r4:86016c00
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:86016c00 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6a1e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f32f00
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:86016c00 r7:00000000 r6:83018600 r5:00001000 r4:7f043000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea5c1000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:85ff8394 r4:85f38a00
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:85ff8394 r4:85f38a00
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:86016c00 r8:85f38a2c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38a00
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38a00 r8:802762fc r7:ea695e60 r6:85f35a00 r5:86016c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6a1fb0 to 0xea6a1ff8)
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 r5:8027f5d0
 r4:85f32540
INFO: task kworker/1:175:4721 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b7457000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:176:4722 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:176   state:D stack:0     pid:4722  tgid:4722  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea69dd84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea69dd8c r5:84baec00
 r4:84baec00
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:84baec00 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea69de08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e83300
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84baec00 r7:00000000 r6:83018600 r5:00001000 r4:7f045000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea649000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86064394 r4:85f38a80
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86064394 r4:85f38a80
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84baec00 r8:85f38aac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38a80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38a80 r8:802762fc r7:ea695e60 r6:85f35b00 r5:84baec00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea69dfb0 to 0xea69dff8)
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 r5:8027f5d0
 r4:85f33f00
INFO: task kworker/1:176:4722 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b7457000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:177:4723 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:177   state:D stack:0     pid:4723  tgid:4723  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea6e5d84 r9:829172a8 r8:60000113 r7:829172a8 r6:ea6e5d8c r5:84bc8000
 r4:84bc8000
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:84bc8000 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea6e5e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f39540
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84bc8000 r7:00000000 r6:83018600 r5:00001000 r4:7f02b000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:df879000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86065394 r4:85f38b00
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86065394 r4:85f38b00
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84bc8000 r8:85f38b2c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38b00
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38b00 r8:802762fc r7:ea695e60 r6:85f35c80 r5:84bc8000
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea6e5fb0 to 0xea6e5ff8)
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 r5:8027f5d0
 r4:85f33500
INFO: task kworker/1:177:4723 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b78af000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
INFO: task kworker/1:178:4726 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:178   state:D stack:0     pid:4726  tgid:4726  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab5470>] (__schedule_loop kernel/sched/core.c:6949 [inline])
[<81ab41c4>] (__schedule) from [<81ab5470>] (schedule+0x2c/0x130 kernel/sched/core.c:6964)
 r10:ea701d84 r9:829172a8 r8:60000013 r7:829172a8 r6:ea701d8c r5:84bc8c00
 r4:84bc8c00
[<81ab5444>] (schedule) from [<81ab55f8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:7021)
 r5:84bc8c00 r4:829172a4
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock_common kernel/locking/mutex.c:692 [inline])
[<81ab55e0>] (schedule_preempt_disabled) from [<81ab8c7c>] (__mutex_lock.constprop.0+0x658/0xf8c kernel/locking/mutex.c:776)
[<81ab8624>] (__mutex_lock.constprop.0) from [<81ab9684>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1065)
 r10:8280c7e4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea701e08
 r4:00000000
[<81ab9670>] (__mutex_lock_slowpath) from [<81ab96c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:290)
[<81ab9688>] (mutex_lock) from [<804f47e8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2944)
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33680
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84bc8c00 r7:00000000 r6:83018600 r5:00001000 r4:7f04d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:ea7eb000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86067794 r4:85f38d80
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86067794 r4:85f38d80
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84bc8c00 r8:85f38dac r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38d80
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38d80 r8:802762fc r7:ea6e5e60 r6:85f35e80 r5:84bc8c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea701fb0 to 0xea701ff8)
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 r5:8027f5d0
 r4:85f39280
INFO: task kworker/1:178:4726 is blocked on a mutex likely owned by task kworker/1:171:4709.
task:kworker/1:171   state:R  running task     stack:0     pid:4709  tgid:4709  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events bpf_prog_free_deferred
Call trace: 
[<81ab41c4>] (__schedule) from [<81ab58a4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7194)
 r10:8280c838 r9:84cc0c00 r8:80200c04 r7:ea769d54 r6:ffffffff r5:84cc0c00
 r4:00000000
[<81ab5864>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18)
Exception stack(0xea769d20 to 0xea769d68)
9d20: b78af000 ebdbf000 00000001 80239018 7f003000 00000001 82ace204 82acd5e0
9d40: 7f003000 ebdbf000 8280c838 ea769d9c ea769da0 ea769d70 8022fe10 80239030
9d60: 80000113 ffffffff
 r5:80000113 r4:80239030
[<8022fdac>] (flush_tlb_kernel_range) from [<804f45ac>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2369)
 r4:82ace224
[<804f4328>] (__purge_vmap_area_lazy) from [<804f4964>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2983)
 r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea769dc0 r5:ea769e08
 r4:ea769dc0
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vm_reset_perms mm/vmalloc.c:3375 [inline])
[<804f4780>] (_vm_unmap_aliases) from [<804f85d0>] (vfree+0x16c/0x210 mm/vmalloc.c:3454)
 r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85f33ac0
 r4:00000000
[<804f8464>] (vfree) from [<80564670>] (execmem_free+0x30/0x50 mm/execmem.c:503)
 r9:83018605 r8:84cc0c00 r7:00000000 r6:83018600 r5:00001000 r4:7f02d000
[<80564640>] (execmem_free) from [<803cb66c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1068)
 r5:00001000 r4:e02c9000
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_binary_free kernel/bpf/core.c:1114 [inline])
[<803cb65c>] (bpf_jit_free_exec) from [<803cba4c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1237)
[<803cb9e4>] (bpf_jit_free) from [<803ccb74>] (bpf_prog_free_deferred+0x140/0x158 kernel/bpf/core.c:2935)
 r5:86051394 r4:85f38500
[<803cca34>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3257)
 r7:ddde3b40 r6:83018600 r5:86051394 r4:85f38500
[<80275c04>] (process_one_work) from [<802764f8>] (process_scheduled_works kernel/workqueue.c:3340 [inline])
[<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3421)
 r10:61c88647 r9:84cc0c00 r8:85f3852c r7:82804d80 r6:ddde3b40 r5:ddde3b60
 r4:85f38500
[<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:85f38500 r8:802762fc r7:ea73de60 r6:85f35800 r5:84cc0c00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xea769fb0 to 0xea769ff8)
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 r5:8027f5d0
 r4:85f33440
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: 
[<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:000b0013 r5:600b0093 r4:82295e10
[<80201b58>] (show_stack) from [<8021eef4>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b58>] (show_stack) from [<8021eef4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120)
[<8021ee84>] (dump_stack_lvl) from [<8021ef18>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:00000001
[<8021ef00>] (dump_stack) from [<81a9dca8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81a9db48>] (nmi_cpu_backtrace) from [<81a9ddf4>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8280c510 r5:8281ad5c r4:ffffffff
[<81a9dcc4>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852)
 r9:00007be8 r8:8280c690 r7:0001ce9e r6:00007be8 r5:82ac27e4 r4:00000048
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa5904>] (trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline])
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa5904>] (__sys_info lib/sys_info.c:157 [inline])
[<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa5904>] (sys_info+0x68/0xa8 lib/sys_info.c:165)
[<81aa589c>] (sys_info) from [<80383aec>] (check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline])
[<81aa589c>] (sys_info) from [<80383aec>] (watchdog+0x464/0x8a0 kernel/hung_task.c:515)
 r5:82ac27e4 r4:8647140c
[<80383688>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:00000000 r8:80383688 r7:830d6400 r6:830d6400 r5:8321c800
 r4:00000001
[<8027f5d0>] (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 r5:8027f5d0
 r4:832dbf40
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2819 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 : [<81abee18>]    lr : [<80aa452c>]    psr: 60070013
sp : eb0cdeb0  ip : eb0cdec0  fp : eb0cdebc
r10: 82959c04  r9 : 00000001  r8 : 00000000
r7 : 00000117  r6 : 82959b68  r5 : 00000000  r4 : 00000001
r3 : 000007ea  r2 : 00000000  r1 : 60070013  r0 : 8462f840
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 84b6f340  DAC: 00000000
Call trace: 
[<81abedf0>] (_raw_spin_unlock_irqrestore) from [<80aa452c>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81abedf0>] (_raw_spin_unlock_irqrestore) from [<80aa452c>] (__uart_port_unlock_irqrestore include/linux/serial_core.h:616 [inline])
[<81abedf0>] (_raw_spin_unlock_irqrestore) from [<80aa452c>] (pl011_console_device_unlock+0x20/0x24 drivers/tty/serial/amba-pl011.c:2603)
[<80aa450c>] (pl011_console_device_unlock) from [<802e58d8>] (nbcon_emit_one+0x88/0x100 kernel/printk/nbcon.c:1149)
[<802e5850>] (nbcon_emit_one) from [<802e5b58>] (nbcon_kthread_func+0x208/0x2e4 kernel/printk/nbcon.c:1255)
 r6:82abf0fc r5:82959b68 r4:8330ec00
[<802e5950>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:82959b68 r8:802e5950 r7:84ae4400 r6:84ae4400 r5:8330ec00
 r4:00000001
[<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xeb0cdfb0 to 0xeb0cdff8)
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 r5:8027f5d0
 r4:84e0e6c0