INFO: task kworker/u5:3:3618 blocked for more than 143 seconds.
Not tainted 5.18.0-rc4-next-20220427-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:3 state:D stack:27712 pid: 3618 ppid: 2 flags:0x00004000
Workqueue: hci1 hci_power_on
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xaa0/0x4cd0 kernel/sched/core.c:6421
schedule+0xd2/0x1f0 kernel/sched/core.c:6493
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1883
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_work+0x56c/0xb10 kernel/workqueue.c:3097
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184
hci_dev_close_sync+0x8d/0x1150 net/bluetooth/hci_sync.c:4092
hci_dev_do_close+0x32/0x70 net/bluetooth/hci_core.c:553
hci_power_on+0x1c0/0x630 net/bluetooth/hci_core.c:981
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task syz-executor.0:26152 blocked for more than 143 seconds.
Not tainted 5.18.0-rc4-next-20220427-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28008 pid:26152 ppid: 1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xaa0/0x4cd0 kernel/sched/core.c:6421
schedule+0xd2/0x1f0 kernel/sched/core.c:6493
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1883
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
flush_workqueue+0x44e/0x1440 kernel/workqueue.c:2883
hci_dev_open+0xdb/0x300 net/bluetooth/hci_core.c:526
hci_sock_ioctl+0x62c/0x910 net/bluetooth/hci_sock.c:1027
sock_do_ioctl+0xcc/0x230 net/socket.c:1122
sock_ioctl+0x2f1/0x640 net/socket.c:1239
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc6d8e88ea7
RSP: 002b:00007fffa8c75708 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fffa8c75dc8 RCX: 00007fc6d8e88ea7
RDX: 0000000000000001 RSI: 00000000400448c9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fc6d85ff700 R09: 00007fc6d85ff700
R10: 00007fc6d85ff9d0 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fffa8c75860 R14: 00007fc6d8f9c9b8 R15: 000000000000000c
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8bd84b50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:502
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8bd847d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:502
1 lock held by khungtaskd/29:
#0: ffffffff8bd856a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by kworker/u4:3/55:
#0: ffff8880b9d3a018 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:541
#1: ffff8880b9d27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x176/0x4e0 kernel/sched/psi.c:880
2 locks held by getty/3280:
#0: ffff888140bf3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002ce62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2118
3 locks held by kworker/u5:3/3618:
#0: ffff8880748e2938 ((wq_completion)hci1){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880748e2938 ((wq_completion)hci1){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880748e2938 ((wq_completion)hci1){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880748e2938 ((wq_completion)hci1){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880748e2938 ((wq_completion)hci1){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880748e2938 ((wq_completion)hci1){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000319fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888063f09048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
2 locks held by kworker/u4:11/5009:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.18.0-rc4-next-20220427-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:264 [inline]
watchdog+0xcb4/0xf10 kernel/hung_task.c:422
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 55 Comm: kworker/u4:3 Not tainted 5.18.0-rc4-next-20220427-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:rcu_is_watching+0x0/0xb0 kernel/rcu/tree.c:1134
Code: 66 62 00 e9 2c ff ff ff 66 90 48 c7 c7 20 fc cd 89 e8 94 47 0e 08 65 8a 05 31 c7 9e 7e 0f be c0 c3 66 0f 1f 84 00 00 00 00 00 <55> 53 65 ff 05 97 86 9d 7e e8 52 47 0e 08 48 c7 c3 10 b0 03 00 83
RSP: 0018:ffffc900013dfb80 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff9200027bf75 RCX: ffffffff815e3078
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8dba21d0
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8dba21d7
R10: fffffbfff1b7443a R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff8bd856a0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f511f44b990 CR3: 0000000023884000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x480/0x570 kernel/locking/lockdep.c:5636
rcu_lock_acquire include/linux/rcupdate.h:270 [inline]
rcu_read_lock include/linux/rcupdate.h:696 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess), 3 bytes skipped:
0: e9 2c ff ff ff jmpq 0xffffff31
5: 66 90 xchg %ax,%ax
7: 48 c7 c7 20 fc cd 89 mov $0xffffffff89cdfc20,%rdi
e: e8 94 47 0e 08 callq 0x80e47a7
13: 65 8a 05 31 c7 9e 7e mov %gs:0x7e9ec731(%rip),%al # 0x7e9ec74b
1a: 0f be c0 movsbl %al,%eax
1d: c3 retq
1e: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
25: 00 00
* 27: 55 push %rbp <-- trapping instruction
28: 53 push %rbx
29: 65 ff 05 97 86 9d 7e incl %gs:0x7e9d8697(%rip) # 0x7e9d86c7
30: e8 52 47 0e 08 callq 0x80e4787
35: 48 c7 c3 10 b0 03 00 mov $0x3b010,%rbx
3c: 83 .byte 0x83