INFO: task kworker/0:10:26208 blocked for more than 430 seconds. Not tainted 6.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:10 state:D stack:0 pid:26208 tgid:26208 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818595ac>] (__schedule) from [<8185a1e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818595ac>] (__schedule) from [<8185a1e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:df9addac r5:8475bc00 r4:8475bc00 [<8185a1b8>] (schedule) from [<8185a7b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8475bc00 r4:8270dd78 [<8185a798>] (schedule_preempt_disabled) from [<8185d098>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a798>] (schedule_preempt_disabled) from [<8185d098>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185cdb0>] (__mutex_lock.constprop.0) from [<8185d964>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df9ade38 r8:00000000 r7:ffffffff r6:00000000 r5:850a4d00 r4:00000000 [<8185d950>] (__mutex_lock_slowpath) from [<8185d9a4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185d968>] (mutex_lock) from [<8048e094>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e034>] (_vm_unmap_aliases) from [<80491c34>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e034>] (_vm_unmap_aliases) from [<80491c34>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:850a4d00 r4:00000000 [<80491ac4>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8475bc00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f248000 [<802ea43c>] (module_memfree) from [<80388bc4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfb2f000 [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d1c>] (bpf_jit_free) from [<80389e64>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:98627350 r4:98627000 [<80389d18>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:98627350 r4:84f5f800 [<80266e8c>] (process_one_work) from [<80267570>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e8c>] (process_one_work) from [<80267570>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:8475bc00 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:84f5f82c r4:84f5f800 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9d1e90 r8:84f78800 r7:84f5f800 r6:80267330 r5:8475bc00 r4:84f78940 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9adfb0 to 0xdf9adff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026e748 r4:84f78940 INFO: task kworker/0:95:26698 blocked for more than 430 seconds. Not tainted 6.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:95 state:D stack:0 pid:26698 tgid:26698 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818595ac>] (__schedule) from [<8185a1e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818595ac>] (__schedule) from [<8185a1e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:e069ddac r5:8465e000 r4:8465e000 [<8185a1b8>] (schedule) from [<8185a7b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8465e000 r4:8270dd78 [<8185a798>] (schedule_preempt_disabled) from [<8185d098>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a798>] (schedule_preempt_disabled) from [<8185d098>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185cdb0>] (__mutex_lock.constprop.0) from [<8185d964>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:e069de38 r8:00000000 r7:ffffffff r6:00000000 r5:98628680 r4:00000000 [<8185d950>] (__mutex_lock_slowpath) from [<8185d9a4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185d968>] (mutex_lock) from [<8048e094>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e034>] (_vm_unmap_aliases) from [<80491c34>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e034>] (_vm_unmap_aliases) from [<80491c34>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:98628680 r4:00000000 [<80491ac4>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8465e000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f246000 [<802ea43c>] (module_memfree) from [<80388bc4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfa99000 [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d1c>] (bpf_jit_free) from [<80389e64>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:85212750 r4:85212400 [<80389d18>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:85212750 r4:84790e00 [<80266e8c>] (process_one_work) from [<80267570>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e8c>] (process_one_work) from [<80267570>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:8465e000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:84790e2c r4:84790e00 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfe89e90 r8:97c72240 r7:84790e00 r6:80267330 r5:8465e000 r4:97c72e40 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe069dfb0 to 0xe069dff8) 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 r5:8026e748 r4:97c72e40 NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<818380cc>] (dump_backtrace) from [<818381c8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fbd5bc [<818381b0>] (show_stack) from [<818556e4>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818381b0>] (show_stack) from [<818556e4>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<8185569c>] (dump_stack_lvl) from [<81855708>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<818556f0>] (dump_stack) from [<818254f8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81825398>] (nmi_cpu_backtrace) from [<81825644>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a7d8 r4:ffffffff [<81825514>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:00000001 r8:82895eb8 r7:8260c5ec r6:00007de4 r5:8261adc8 r4:8567dd2c [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347eb4>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347eb4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347eb4>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<80347a28>] (watchdog) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e9f3c0 r7:00000000 r6:80347a28 r5:82ef0000 r4:82f43ac0 [<8026e748>] (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 r5:8026e748 r4:82f43ac0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 33 Comm: kcompactd0 Not tainted 6.8.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express PC is at kmap_local_sched_in kernel/sched/core.c:5180 [inline] PC is at finish_task_switch+0x8c/0x294 kernel/sched/core.c:5282 LR is at __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] LR is at _raw_spin_unlock+0x2c/0x50 kernel/locking/spinlock.c:186 pc : [<8027b450>] lr : [<818626c0>] psr: 20000013 sp : df8e5e18 ip : df8e5e08 fp : df8e5e5c r10: 00000001 r9 : 82ef2400 r8 : 841cb000 r7 : 00000000 r6 : 818599b0 r5 : dddd1600 r4 : 00000000 r3 : 82ef2400 r2 : 00000001 r1 : 81fbd5bc r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 843c1200 DAC: fffffffd Backtrace: [<8027b3c4>] (finish_task_switch) from [<818599b0>] (context_switch kernel/sched/core.c:5403 [inline]) [<8027b3c4>] (finish_task_switch) from [<818599b0>] (__schedule+0x404/0xc0c kernel/sched/core.c:6727) r10:00002001 r9:00000000 r8:8260c934 r7:00000000 r6:82ef2400 r5:dddd1600 r4:84759800 [<818595ac>] (__schedule) from [<8185a1e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818595ac>] (__schedule) from [<8185a1e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:827da800 r9:82ef2400 r8:8260c954 r7:82ef2400 r6:82604d40 r5:00000000 r4:82ef2400 [<8185a1b8>] (schedule) from [<81861744>] (schedule_timeout+0x9c/0x114 kernel/time/timer.c:2183) r5:00000000 r4:00069acf [<818616a8>] (schedule_timeout) from [<80462d4c>] (kcompactd+0x328/0x3ac mm/compaction.c:3108) r7:827db324 r6:00000000 r5:827da800 r4:00000032 [<80462a24>] (kcompactd) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e28 r8:82e9f880 r7:827da800 r6:80462a24 r5:82ef2400 r4:82e9f780 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8e5fb0 to 0xdf8e5ff8) 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 r5:8026e748 r4:82e9f780