INFO: task syz-executor.1:5089 blocked for more than 143 seconds.
Not tainted 6.2.0-rc8-syzkaller-00145-g5e725d112e1a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:20216 pid:5089 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5296 [inline]
__schedule+0x1409/0x43f0 kernel/sched/core.c:6609
schedule+0xc3/0x190 kernel/sched/core.c:6685
schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
gfs2_gl_hash_clear+0x1a3/0x310 fs/gfs2/glock.c:2194
gfs2_put_super+0x827/0x890 fs/gfs2/super.c:627
generic_shutdown_super+0x134/0x310 fs/super.c:492
kill_block_super+0x7e/0xe0 fs/super.c:1386
deactivate_locked_super+0xa4/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1291
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x2e0 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd08c48d567
RSP: 002b:00007ffded44f2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd08c48d567
RDX: 00007ffded44f3cb RSI: 000000000000000a RDI: 00007ffded44f3c0
RBP: 00007ffded44f3c0 R08: 00000000ffffffff R09: 00007ffded44f190
R10: 0000555555dde8b3 R11: 0000000000000246 R12: 00007fd08c4e6b24
R13: 00007ffded450480 R14: 0000555555dde810 R15: 00007ffded4504c0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25950 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf26150 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8cf25780 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/46:
#0: ffff8880b983b1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:537
#1: ffff8880b9828748 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x679/0xa30 kernel/sched/psi.c:976
#2: ffff8880b9829558 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
2 locks held by getty/4740:
#0: ffff88814a437098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.1/5089:
#0: ffff8880318f40e0 (&type->s_umount_key#59){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:362
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc8-syzkaller-00145-g5e725d112e1a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e5/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b4/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf70/0xfb0 kernel/hung_task.c:377
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5195 Comm: kworker/u4:6 Not tainted 6.2.0-rc8-syzkaller-00145-g5e725d112e1a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: phy10 ieee80211_iface_work
RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:3725 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3744 [inline]
RIP: 0010:validate_chain+0x1a0/0x58e0 kernel/locking/lockdep.c:3799
Code: 89 df e8 c3 49 75 00 48 89 5c 24 20 48 8b 1b 48 85 db 74 48 48 83 c3 f8 74 42 4c 8d 7b 18 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 ff e8 96 49 75 00 49 8b 07 4c 39 f0 0f 84 dc 03 00 00
RSP: 0018:ffffc90004e475a0 EFLAGS: 00000046
RAX: 1ffffffff2038d8f RBX: ffffffff901c6c60 RCX: ffffffff816bc2c9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901c3190
RBP: ffffc90004e47850 R08: dffffc0000000000 R09: fffffbfff2038633
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888028e0c500 R14: 6b206909365a939c R15: ffffffff901c6c78
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558873f23680 CR3: 000000000cc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5055
lock_acquire+0x235/0x630 kernel/locking/lockdep.c:5668
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
try_to_wake_up+0xb6/0x12b0 kernel/sched/core.c:4152
wake_up_worker kernel/workqueue.c:856 [inline]
process_one_work+0x6b7/0x1370 kernel/workqueue.c:2252
worker_thread+0xa63/0x1210 kernel/workqueue.c:2436
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308