INFO: task kworker/1:2:3721 blocked for more than 430 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:3721 tgid:3721 ppid:2 flags:0x00000000 Workqueue: events rfkill_sync_work Call trace: [<818c3940>] (__schedule) from [<818c4544>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c3940>] (__schedule) from [<818c4544>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:84635060 r7:00000002 r6:eadf1e14 r5:836aa400 r4:836aa400 [<818c4518>] (schedule) from [<818c4b54>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:836aa400 r4:8463505c [<818c4b3c>] (schedule_preempt_disabled) from [<818c7434>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b3c>] (schedule_preempt_disabled) from [<818c7434>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c714c>] (__mutex_lock.constprop.0) from [<818c7d00>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:836aa400 r8:00000180 r7:ddde40c0 r6:00000001 r5:8463505c r4:84635000 [<818c7cec>] (__mutex_lock_slowpath) from [<818c7d40>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d04>] (mutex_lock) from [<81814974>] (device_lock include/linux/device.h:990 [inline]) [<818c7d04>] (mutex_lock) from [<81814974>] (nfc_dev_down+0x20/0xc8 net/nfc/core.c:143) [<81814954>] (nfc_dev_down) from [<81814a48>] (nfc_rfkill_set_block+0x2c/0x68 net/nfc/core.c:179) r7:ddde40c0 r6:00000001 r5:84635000 r4:00000001 [<81814a1c>] (nfc_rfkill_set_block) from [<817d02e0>] (rfkill_set_block+0x90/0x144 net/rfkill/core.c:346) r5:00000000 r4:84635400 [<817d0250>] (rfkill_set_block) from [<817d0d48>] (rfkill_sync net/rfkill/core.c:379 [inline]) [<817d0250>] (rfkill_set_block) from [<817d0d48>] (rfkill_sync net/rfkill/core.c:372 [inline]) [<817d0250>] (rfkill_set_block) from [<817d0d48>] (rfkill_sync_work+0x44/0x5c net/rfkill/core.c:1060) r7:ddde40c0 r6:82c16200 r5:8463567c r4:8463567c [<817d0d04>] (rfkill_sync_work) from [<802665ec>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r5:8463567c r4:8470f280 [<80266434>] (process_one_work) from [<80267310>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266434>] (process_one_work) from [<80267310>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:836aa400 r9:8470f2ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:8470f280 [<80267124>] (worker_thread) from [<80270024>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ebc39e90 r8:84af16c0 r7:8470f280 r6:80267124 r5:836aa400 r4:84af1240 [<8026ff20>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeadf1fb0 to 0xeadf1ff8) 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 r5:8026ff20 r4:84af1240 INFO: task kworker/1:0:2352 blocked for more than 430 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:2352 tgid:2352 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Call trace: [<818c3940>] (__schedule) from [<818c4544>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c3940>] (__schedule) from [<818c4544>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:827daad0 r7:00000002 r6:dfcbde74 r5:82e55400 r4:82e55400 [<818c4518>] (schedule) from [<818c4b54>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82e55400 r4:827daacc [<818c4b3c>] (schedule_preempt_disabled) from [<818c7434>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818c4b3c>] (schedule_preempt_disabled) from [<818c7434>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818c714c>] (__mutex_lock.constprop.0) from [<818c7d00>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:82e55400 r8:00000180 r7:ddde40c0 r6:82c16200 r5:82912e1c r4:827daacc [<818c7cec>] (__mutex_lock_slowpath) from [<818c7d40>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818c7d04>] (mutex_lock) from [<817cf500>] (rfkill_global_led_trigger_worker+0x1c/0xc0 net/rfkill/core.c:182) [<817cf4e4>] (rfkill_global_led_trigger_worker) from [<802665ec>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r5:82912e1c r4:84959b80 [<80266434>] (process_one_work) from [<80267310>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266434>] (process_one_work) from [<80267310>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:82e55400 r9:84959bac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:84959b80 [<80267124>] (worker_thread) from [<80270024>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ed909e90 r8:854df840 r7:84959b80 r6:80267124 r5:82e55400 r4:85244b00 [<8026ff20>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfcbdfb0 to 0xdfcbdff8) 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 r5:8026ff20 r4:85244b00 INFO: task syz-executor.1:18316 blocked for more than 430 seconds. Not tainted 6.9.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:18316 tgid:18316 ppid:17182 flags:0x00000005 Call trace: [<818c3940>] (__schedule) from [<818c4544>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<818c3940>] (__schedule) from [<818c4544>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:eae9de50 r9:00000002 r8:eae9ddfc r7:84052400 r6:eae9de48 r5:00000000 r4:84052400 [<818c4518>] (schedule) from [<818cbb30>] (schedule_timeout+0xe4/0x114 kernel/time/timer.c:2558) r5:00000000 r4:7fffffff [<818cba4c>] (schedule_timeout) from [<818c5484>] (do_wait_for_common kernel/sched/completion.c:95 [inline]) [<818cba4c>] (schedule_timeout) from [<818c5484>] (__wait_for_common kernel/sched/completion.c:116 [inline]) [<818cba4c>] (schedule_timeout) from [<818c5484>] (wait_for_common kernel/sched/completion.c:127 [inline]) [<818cba4c>] (schedule_timeout) from [<818c5484>] (wait_for_completion+0x6c/0x144 kernel/sched/completion.c:148) r7:84052400 r6:eae9de48 r5:eae9de4c r4:7fffffff [<818c5418>] (wait_for_completion) from [<80264d54>] (__flush_work+0x160/0x2b4 kernel/workqueue.c:4205) r10:00000006 r9:ddde40c0 r8:84052400 r7:00000001 r6:82c16200 r5:8463567c r4:8470f280 [<80264bf4>] (__flush_work) from [<80267a80>] (__cancel_work_sync+0x148/0x230 kernel/workqueue.c:4304) r9:84052400 r8:8550e3d0 r7:84bfd800 r6:00000180 r5:00000000 r4:8463567c [<80267938>] (__cancel_work_sync) from [<80267b7c>] (cancel_work_sync+0x14/0x18 kernel/workqueue.c:4348) r6:84bfd824 r5:84635638 r4:84635400 [<80267b68>] (cancel_work_sync) from [<817cff84>] (rfkill_unregister+0x40/0xc4 net/rfkill/core.c:1143) [<817cff44>] (rfkill_unregister) from [<81814134>] (nfc_unregister_device+0x44/0x118 net/nfc/core.c:1167) r5:8463505c r4:84635000 [<818140f0>] (nfc_unregister_device) from [<81820f60>] (nci_unregister_device+0x94/0x98 net/nfc/nci/core.c:1312) r5:84bfd824 r4:84bfd824 [<81820ecc>] (nci_unregister_device) from [<80aa3134>] (virtual_ncidev_close+0x18/0x30 drivers/nfc/virtual_ncidev.c:168) r9:84052400 r8:8550e3d0 r7:838a4468 r6:8302d990 r5:000e001b r4:85787c00 [<80aa311c>] (virtual_ncidev_close) from [<804f9124>] (__fput+0x84/0x2d4 fs/file_table.c:422) r5:000e001b r4:856b7240 [<804f90a0>] (__fput) from [<804f9430>] (__fput_sync+0x3c/0x40 fs/file_table.c:507) r9:84052400 r8:80200288 r7:00000006 r6:00000000 r5:856b7240 r4:00000000 [<804f93f4>] (__fput_sync) from [<804f4988>] (__do_sys_close fs/open.c:1556 [inline]) [<804f93f4>] (__fput_sync) from [<804f4988>] (sys_close+0x30/0x64 fs/open.c:1541) [<804f4958>] (sys_close) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xeae9dfa8 to 0xeae9dff0) dfa0: 00000003 00000000 00000003 00000002 00000000 00000000 dfc0: 00000003 00000000 00000000 00000006 00000000 0014c29c 000f4240 006391d0 dfe0: 00000000 7eb383e0 00091184 0004f5fc r5:00000000 r4:00000003 NMI backtrace for cpu 1 CPU: 1 PID: 31 Comm: khungtaskd Not tainted 6.9.0-rc6-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<818a221c>] (dump_backtrace) from [<818a2318>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000013 r5:60000093 r4:81fcedd0 [<818a2300>] (show_stack) from [<818bfa70>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818a2300>] (show_stack) from [<818bfa70>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:114) [<818bfa00>] (dump_stack_lvl) from [<818bfa94>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000001 r4:00000001 [<818bfa7c>] (dump_stack) from [<8188f5f4>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<8188f494>] (nmi_cpu_backtrace) from [<8188f740>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c590 r5:8261a88c r4:ffffffff [<8188f610>] (nmi_trigger_cpumask_backtrace) from [<802105b4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:8260c6f4 r8:000a2a00 r7:8289ffe0 r6:00007f46 r5:834a6e04 r4:82fb7524 [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034ea88>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034ea88>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034ea88>] (watchdog+0x480/0x594 kernel/hung_task.c:380) [<8034e608>] (watchdog) from [<80270024>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82f18d80 r7:00000000 r6:8034e608 r5:82e50c00 r4:82ebf8c0 [<8026ff20>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8ddfb0 to 0xdf8ddff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026ff20 r4:82ebf8c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2819 Comm: syslogd Not tainted 6.9.0-rc6-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x76ddcaf8 LR is at 0x76dafe60 pc : [<76ddcaf8>] lr : [<76dafe60>] psr: 20000010 sp : 7eaf65f8 ip : 25252525 fp : 00000000 r10: 7eaf6c48 r9 : 7eaf6bcc r8 : 7eaf6bcc r7 : fffffff7 r6 : 76f7d403 r5 : 7eaf6ae0 r4 : 00000023 r3 : 00000003 r2 : 7eaf6c51 r1 : 00000025 r0 : 76f7d403 Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user Control: 30c5387d Table: 840b38c0 DAC: fffffffd Call trace: no frame pointer