INFO: task kworker/0:19:18916 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:19 state:D stack:0 pid:18916 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16005 r9:00000000 r8:8270d5f4 r7:00000002 r6:dfc49da4 r5:82e6af00 r4:82e6af00 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:82e6af00 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfc49e30 r8:00000000 r7:ffffffff r6:00000000 r5:85a3a840 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a3a840 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:8456a000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f234000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:eac47000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:8456a344 r4:8521c380 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:82e6af00 r8:00000000 r7:dddd22c0 r6:82c16000 r5:8456a344 r4:8521c380 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:82e6af00 r8:dddd22e0 r7:82604d40 r6:dddd22c0 r5:8521c3ac r4:8521c380 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfc45e98 r8:85ec1940 r7:8521c380 r6:802662e0 r5:82e6af00 r4:85ec1440 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfc49fb0 to 0xdfc49ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85ec1440 INFO: task kworker/0:22:18919 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:22 state:D stack:0 pid:18919 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16005 r9:00000000 r8:8270d5f4 r7:00000002 r6:dfc59da4 r5:82dfde00 r4:82dfde00 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:82dfde00 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfc59e30 r8:00000000 r7:ffffffff r6:00000000 r5:85277b00 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85277b00 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:8456a800 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f232000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:eaae9000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:8456ab44 r4:8521c580 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:82dfde00 r8:00000000 r7:dddd22c0 r6:82c16000 r5:8456ab44 r4:8521c580 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:82dfde00 r8:dddd22e0 r7:82604d40 r6:dddd22c0 r5:8521c5ac r4:8521c580 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfc55e98 r8:85a0ae80 r7:8521c580 r6:802662e0 r5:82dfde00 r4:85ec1440 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfc59fb0 to 0xdfc59ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85ec1440 INFO: task kworker/0:36:20025 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:36 state:D stack:0 pid:20025 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16005 r9:00000000 r8:8270d5f4 r7:00000002 r6:dfb75da4 r5:845b5240 r4:845b5240 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:845b5240 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfb75e30 r8:00000000 r7:ffffffff r6:00000000 r5:85709f00 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85709f00 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:8556e400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f304000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:e075b000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:8556e744 r4:85008b80 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:845b5240 r8:00000000 r7:dddd22c0 r6:82c16000 r5:8556e744 r4:85008b80 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:845b5240 r8:dddd22e0 r7:82604d40 r6:dddd22c0 r5:85008bac r4:85008b80 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfb01e98 r8:838f8c80 r7:85008b80 r6:802662e0 r5:845b5240 r4:85242580 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfb75fb0 to 0xdfb75ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85242580 INFO: task kworker/0:39:20028 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:39 state:D stack:0 pid:20028 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16005 r9:00000000 r8:8270d5f4 r7:00000002 r6:dfb91da4 r5:85204680 r4:85204680 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85204680 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfb91e30 r8:00000000 r7:ffffffff r6:00000000 r5:85709640 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85709640 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:8556d400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f306000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:e0775000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:8556d744 r4:847f2900 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85204680 r8:00000000 r7:dddd22c0 r6:82c16000 r5:8556d744 r4:847f2900 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85204680 r8:dddd22e0 r7:82604d40 r6:dddd22c0 r5:847f292c r4:847f2900 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfb75e98 r8:85242980 r7:847f2900 r6:802662e0 r5:85204680 r4:85242580 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) 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 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85242580 INFO: task kworker/1:143:20054 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:143 state:D stack:0 pid:20054 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16205 r9:00000000 r8:8270d5f4 r7:00000002 r6:e0799da4 r5:85a5de00 r4:85a5de00 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85a5de00 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:e0799e30 r8:00000000 r7:ffffffff r6:00000000 r5:85259540 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85259540 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:8575a000 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f282000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:dfca5000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:8575a344 r4:85499700 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85a5de00 r8:00000080 r7:ddde52c0 r6:82c16200 r5:8575a344 r4:85499700 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85a5de00 r8:ddde52e0 r7:82604d40 r6:ddde52c0 r5:8549972c r4:85499700 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e0795e98 r8:853eb140 r7:85499700 r6:802662e0 r5:85a5de00 r4:85709140 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe0799fb0 to 0xe0799ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85709140 INFO: task kworker/1:144:20056 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:144 state:D stack:0 pid:20056 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16205 r9:00000000 r8:8270d5f4 r7:00000002 r6:e07a1da4 r5:85a60000 r4:85a60000 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85a60000 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:e07a1e30 r8:00000000 r7:ffffffff r6:00000000 r5:85259680 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85259680 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:8575b800 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f284000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:dfcad000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:8575bb44 r4:85499900 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85a60000 r8:00000080 r7:ddde52c0 r6:82c16200 r5:8575bb44 r4:85499900 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85a60000 r8:ddde52e0 r7:82604d40 r6:ddde52c0 r5:8549992c r4:85499900 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e0799e98 r8:8526e100 r7:85499900 r6:802662e0 r5:85a60000 r4:85709140 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe07a1fb0 to 0xe07a1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85709140 INFO: task kworker/1:145:20057 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:145 state:D stack:0 pid:20057 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16205 r9:00000000 r8:8270d5f4 r7:00000002 r6:e07a5da4 r5:85a60bc0 r4:85a60bc0 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85a60bc0 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:e07a5e30 r8:00000000 r7:ffffffff r6:00000000 r5:852597c0 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:852597c0 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:84ba7000 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f286000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:dfcc1000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:84ba7344 r4:85499d80 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85a60bc0 r8:00000080 r7:ddde52c0 r6:82c16200 r5:84ba7344 r4:85499d80 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85a60bc0 r8:ddde52e0 r7:82604d40 r6:ddde52c0 r5:85499dac r4:85499d80 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e07a1e98 r8:8526e200 r7:85499d80 r6:802662e0 r5:85a60bc0 r4:85709140 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe07a5fb0 to 0xe07a5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85709140 INFO: task kworker/1:146:20058 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:146 state:D stack:0 pid:20058 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16205 r9:00000000 r8:8270d5f4 r7:00000002 r6:e07a9da4 r5:85a61780 r4:85a61780 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85a61780 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:e07a9e30 r8:00000000 r7:ffffffff r6:00000000 r5:85259900 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85259900 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:84ba5c00 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f288000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:dfccb000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:84ba5f44 r4:85499980 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85a61780 r8:00000080 r7:ddde52c0 r6:82c16200 r5:84ba5f44 r4:85499980 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85a61780 r8:ddde52e0 r7:82604d40 r6:ddde52c0 r5:854999ac r4:85499980 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e07a5e98 r8:8526e300 r7:85499980 r6:802662e0 r5:85a61780 r4:85709140 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe07a9fb0 to 0xe07a9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85709140 INFO: task kworker/1:147:20059 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:147 state:D stack:0 pid:20059 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16205 r9:00000000 r8:8270d5f4 r7:00000002 r6:e07adda4 r5:85a62340 r4:85a62340 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85a62340 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:e07ade30 r8:00000000 r7:ffffffff r6:00000000 r5:85259bc0 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85259bc0 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:85698400 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f28c000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:dfcdf000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:85698744 r4:85499880 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85a62340 r8:00000080 r7:ddde52c0 r6:82c16200 r5:85698744 r4:85499880 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85a62340 r8:ddde52e0 r7:82604d40 r6:ddde52c0 r5:854998ac r4:85499880 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e07a9e98 r8:8526e400 r7:85499880 r6:802662e0 r5:85a62340 r4:85709140 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe07adfb0 to 0xe07adff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85709140 INFO: task kworker/1:148:20060 blocked for more than 430 seconds. Not tainted 6.6.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:148 state:D stack:0 pid:20060 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8183f6e0>] (__schedule) from [<81840348>] (schedule+0x5c/0xac kernel/sched/core.c:6771) r10:82c16205 r9:00000000 r8:8270d5f4 r7:00000002 r6:e07b1da4 r5:85a62f00 r4:85a62f00 [<818402ec>] (schedule) from [<8184088c>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6830) r5:85a62f00 r4:8270d5f0 [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81840874>] (schedule_preempt_disabled) from [<81843174>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81842e8c>] (__mutex_lock.constprop.0) from [<81843a40>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:e07b1e30 r8:00000000 r7:ffffffff r6:00000000 r5:85259a80 r4:00000000 [<81843a2c>] (__mutex_lock_slowpath) from [<81843a80>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81843a44>] (mutex_lock) from [<804827cc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048276c>] (_vm_unmap_aliases) from [<8048639c>] (vfree+0x180/0x1f0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85259a80 r4:00000000 [<8048621c>] (vfree) from [<802e8204>] (module_memfree+0x40/0x60 kernel/module/main.c:1189) r9:85698000 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f28a000 [<802e81c4>] (module_memfree) from [<80384264>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1015) r5:00001000 r4:dfcd7000 [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_binary_free kernel/bpf/core.c:1061 [inline]) [<80384254>] (bpf_jit_free_exec) from [<80384424>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1186) [<803843bc>] (bpf_jit_free) from [<80384628>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2736) r5:85698344 r4:85499b00 [<803844a0>] (bpf_prog_free_deferred) from [<80265fd4>] (process_one_work+0x19c/0x4a8 kernel/workqueue.c:2630) r9:85a62f00 r8:00000080 r7:ddde52c0 r6:82c16200 r5:85698344 r4:85499b00 [<80265e38>] (process_one_work) from [<80266520>] (process_scheduled_works kernel/workqueue.c:2703 [inline]) [<80265e38>] (process_one_work) from [<80266520>] (worker_thread+0x240/0x48c kernel/workqueue.c:2784) r10:61c88647 r9:85a62f00 r8:ddde52e0 r7:82604d40 r6:ddde52c0 r5:85499b2c r4:85499b00 [<802662e0>] (worker_thread) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e07ade98 r8:8526e500 r7:85499b00 r6:802662e0 r5:85a62f00 r4:85709140 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe07b1fb0 to 0xe07b1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:85709140 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.6.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8181e540>] (dump_backtrace) from [<8181e63c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fb5704 [<8181e624>] (show_stack) from [<8183b964>] (__dump_stack lib/dump_stack.c:88 [inline]) [<8181e624>] (show_stack) from [<8183b964>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<8183b91c>] (dump_stack_lvl) from [<8183b988>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<8183b970>] (dump_stack) from [<8180bf84>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<8180be24>] (nmi_cpu_backtrace) from [<8180c0d0>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a898 r4:ffffffff [<8180bfa0>] (nmi_trigger_cpumask_backtrace) from [<802104b4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:8260c60c r8:82899eac r7:8261b448 r6:00007dec r5:8551bcc0 r4:84a01464 [<8021049c>] (arch_trigger_cpumask_backtrace) from [<80343f18>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021049c>] (arch_trigger_cpumask_backtrace) from [<80343f18>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021049c>] (arch_trigger_cpumask_backtrace) from [<80343f18>] (watchdog+0x488/0x59c kernel/hung_task.c:379) [<80343a90>] (watchdog) from [<8026d8e0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82ec2bc0 r7:00000000 r6:80343a90 r5:82e10000 r4:82ec2ac0 [<8026d7dc>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026d7dc r4:82ec2ac0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2796 Comm: klogd Not tainted 6.6.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express PC is at do_work_pending+0x5c/0x4c0 arch/arm/kernel/signal.c:617 LR is at slow_work_pending+0xc/0x24 pc : [<8020b99c>] lr : [<80200088>] psr: 40000013 sp : ec7b9f48 ip : ec7b9fb0 fp : ec7b9fac r10: 00000121 r9 : 83f08000 r8 : 80200288 r7 : 00000121 r6 : 80200288 r5 : ec7b9fb0 r4 : 83f08000 r3 : 00040000 r2 : 00000000 r1 : 00000000 r0 : ec7b9fb0 Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84486e40 DAC: fffffffd Backtrace: [<8020b940>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x24) Exception stack(0xec7b9fb0 to 0xec7b9ff8) 9fa0: 0000003e 00d1a880 0000003e 00004000 9fc0: 00d18b08 76f4f5a0 76f4f5a0 00000121 00000000 00000013 76e20e60 00d1a883 9fe0: 00000000 7ea5dbc8 76da8460 76dad918 60000010 00000003 r9:83f08000 r8:80200288 r7:00000121 r6:76f4f5a0 r5:76f4f5a0 r4:00d18b08