Bluetooth: hci4: command 0x0401 tx timeout Bluetooth: hci4: command 0x0401 tx timeout INFO: task syz-executor.5:58440 blocked for more than 143 seconds. Not tainted 5.10.60 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27904 pid:58440 ppid: 284 flags:0x10000004 Call Trace: context_switch kernel/sched/core.c:3774 [inline] __schedule+0x84b/0x1e90 kernel/sched/core.c:4523 schedule+0xcb/0x270 kernel/sched/core.c:4601 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4660 __mutex_lock_common kernel/locking/mutex.c:1046 [inline] __mutex_lock+0x828/0x12e0 kernel/locking/mutex.c:1114 perf_event_ctx_lock_nested+0x236/0x480 kernel/events/core.c:1356 perf_event_ctx_lock kernel/events/core.c:1369 [inline] perf_event_release_kernel+0x3a6/0xc20 kernel/events/core.c:5008 perf_release+0x33/0x40 kernel/events/core.c:5106 __fput+0x285/0x970 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:151 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0x155/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4193eb RSP: 002b:00007ffd54910100 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00000000004193eb RDX: ffffffffffffffbc RSI: 00000000000f4240 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000571550 R10: 00007ffd549101f0 R11: 0000000000000293 R12: 000000000004268a R13: 00000000000003e8 R14: 000000000056bf80 R15: 0000000000042595 INFO: task syz-executor.5:58557 blocked for more than 143 seconds. Not tainted 5.10.60 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:29216 pid:58557 ppid: 284 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3774 [inline] __schedule+0x84b/0x1e90 kernel/sched/core.c:4523 schedule+0xcb/0x270 kernel/sched/core.c:4601 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4660 __mutex_lock_common kernel/locking/mutex.c:1046 [inline] __mutex_lock+0x828/0x12e0 kernel/locking/mutex.c:1114 mutex_lock_double kernel/events/core.c:11593 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11652 [inline] __do_sys_perf_event_open+0x1234/0x2c80 kernel/events/core.c:11922 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 RSP: 002b:00007f3165757188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 0000000000466609 RDX: 0000000000000000 RSI: 00000000000006c3 RDI: 0000000020000000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffd5491009f R14: 00007f3165757300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6377 4 locks held by kworker/0:1H/51: #0: ffff88806ce33218 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1294 [inline] #0: ffff88806ce33218 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x1e2/0x1e90 kernel/sched/core.c:4441 #1: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: trace_sched_stat_runtime include/trace/events/sched.h:435 [inline] #1: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: update_curr+0x279/0x7b0 kernel/sched/fair.c:879 #2: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: hctx_lock+0x7f/0x1d0 block/blk-mq.c:716 #3: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_unlock include/linux/rcupdate.h:699 [inline] #3: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: percpu_ref_get_many include/linux/percpu-refcount.h:209 [inline] #3: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: percpu_ref_get include/linux/percpu-refcount.h:222 [inline] #3: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: scsi_end_request+0x370/0x840 drivers/scsi/scsi_lib.c:602 2 locks held by systemd-journal/104: 1 lock held by in:imklog/179: #0: ffff88800de974f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930 2 locks held by rs:main Q:Reg/180: #0: ffff8880155a14f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930 #1: ffff88800f94e438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 2 locks held by kworker/u4:10/1385: #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8af/0x1580 kernel/workqueue.c:2241 #1: ffff88801a397da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x8e2/0x1580 kernel/workqueue.c:2245 1 lock held by syz-executor.5/58440: #0: ffff88800e3f5cb0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_ctx_lock_nested+0x236/0x480 kernel/events/core.c:1356 3 locks held by syz-executor.5/58557: #0: ffff888044546758 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfbf/0x2c80 kernel/events/core.c:11904 #1: ffff88800e3f5cb0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11592 [inline] #1: ffff88800e3f5cb0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11652 [inline] #1: ffff88800e3f5cb0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1227/0x2c80 kernel/events/core.c:11922 #2: ffff88800e3f5cb0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11593 [inline] #2: ffff88800e3f5cb0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11652 [inline] #2: ffff88800e3f5cb0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1234/0x2c80 kernel/events/core.c:11922 =============================================