INFO: task kworker/u5:6:3661 blocked for more than 143 seconds.
Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:6 state:D stack:28712 pid: 3661 ppid: 2 flags:0x00004000
Workqueue: hci0 hci_power_on
Call Trace:
context_switch kernel/sched/core.c:5184 [inline]
__schedule+0xa09/0x4f10 kernel/sched/core.c:6496
schedule+0xd2/0x1f0 kernel/sched/core.c:6568
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
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:3075
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162
hci_dev_close_sync+0x88/0x1140 net/bluetooth/hci_sync.c:4115
hci_dev_do_close+0x2d/0x70 net/bluetooth/hci_core.c:553
hci_power_on+0x1bb/0x630 net/bluetooth/hci_core.c:988
process_one_work+0x991/0x1610 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:302
INFO: task syz-executor.0:24726 blocked for more than 143 seconds.
Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28008 pid:24726 ppid: 1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5184 [inline]
__schedule+0xa09/0x4f10 kernel/sched/core.c:6496
schedule+0xd2/0x1f0 kernel/sched/core.c:6568
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_workqueue+0x3ed/0x13a0 kernel/workqueue.c:2861
hci_dev_open+0xdb/0x300 net/bluetooth/hci_core.c:526
hci_sock_ioctl+0x627/0x910 net/bluetooth/hci_sock.c:1034
sock_do_ioctl+0xcc/0x230 net/socket.c:1169
sock_ioctl+0x2f1/0x640 net/socket.c:1286
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+0x46/0xb0
RIP: 0033:0x7f6272e88fc7
RSP: 002b:00007ffdab23c7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffdab23ceb8 RCX: 00007f6272e88fc7
RDX: 0000000000000000 RSI: 00000000400448c9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007f62725ff700 R09: 00007f62725ff700
R10: 00007f62725ff9d0 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffdab23c950 R14: 00007f6272f9c9b8 R15: 000000000000000c
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8bd864f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8bd861f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8bd87040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by getty/3277:
#0: ffff88801677f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2177
3 locks held by kworker/u5:6/3661:
#0: ffff888078811938 ((wq_completion)hci0){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888078811938 ((wq_completion)hci0){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888078811938 ((wq_completion)hci0){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888078811938 ((wq_completion)hci0){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888078811938 ((wq_completion)hci0){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888078811938 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000311fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888078f49048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x25/0x70 net/bluetooth/hci_core.c:551
3 locks held by kworker/u5:8/3664:
#0: ffff888078cd9938 ((wq_completion)hci7){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888078cd9938 ((wq_completion)hci7){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888078cd9938 ((wq_completion)hci7){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888078cd9938 ((wq_completion)hci7){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888078cd9938 ((wq_completion)hci7){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888078cd9938 ((wq_completion)hci7){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000315fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888082779048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x25/0x70 net/bluetooth/hci_core.c:551
2 locks held by kworker/u4:9/20335:
#0: ffff8880b9b39f18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:544
#1: ffffc900155b7da8 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
3 locks held by kworker/u5:0/24762:
#0: ffff888021b68138 ((wq_completion)hci6){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888021b68138 ((wq_completion)hci6){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888021b68138 ((wq_completion)hci6){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888021b68138 ((wq_completion)hci6){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888021b68138 ((wq_completion)hci6){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888021b68138 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc900045f7da8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88803aacd048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x25/0x70 net/bluetooth/hci_core.c:551
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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:212 [inline]
watchdog+0xc18/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 20335 Comm: kworker/u4:9 Not tainted 5.19.0-rc4-next-20220628-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_release kernel/locking/lockdep.c:5369 [inline]
RIP: 0010:lock_release+0x2b9/0x780 kernel/locking/lockdep.c:5685
Code: 04 00 00 66 83 6b 22 10 66 f7 43 22 f0 ff 0f 85 0c 01 00 00 4c 89 f2 44 8b 64 24 50 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e bd 03 00 00 48 89 da 45 89 a7
RSP: 0018:ffffc900155b7b40 EFLAGS: 00000806
RAX: dffffc0000000000 RBX: ffff8880764a4520 RCX: ffffc900155b7b90
RDX: 1ffff1100ec94899 RSI: 0000000000000000 RDI: ffff8880764a4542
RBP: 1ffff92002ab6f6a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000003 R14: ffff8880764a44c8 R15: ffff8880764a3a80
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563a9b5762e8 CR3: 000000002673e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:165 [inline]
_raw_spin_unlock_bh+0x12/0x30 kernel/locking/spinlock.c:210
spin_unlock_bh include/linux/spinlock.h:405 [inline]
batadv_nc_purge_paths+0x2a5/0x3a0 net/batman-adv/network-coding.c:471
batadv_nc_worker+0x8f9/0xfa0 net/batman-adv/network-coding.c:720
process_one_work+0x991/0x1610 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:302