INFO: task syz-executor.3:19855 blocked for more than 143 seconds.
Not tainted 6.1.0-rc5-syzkaller-00144-g84368d882b96 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D
stack:25112 pid:19855 ppid:3688 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8fc/0xda0 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
schedule_timeout+0xac/0x300 kernel/time/timer.c:1911
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
f2fs_issue_checkpoint+0x30a/0x4f0
iterate_supers+0x137/0x1f0 fs/super.c:724
ksys_sync+0xd5/0x1c0 fs/sync.c:104
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb79088b639
RSP: 002b:00007fb791593168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fb7909abf80 RCX: 00007fb79088b639
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb7908e6ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd5b72053f R14: 00007fb791593300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0:
ffffffff8d323ff0
(
rcu_tasks.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0:
ffffffff8d3247f0
(
rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0:
ffffffff8d323e20
(
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3324:
#0:
ffff88802878b098
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1:
ffffc900031262f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177
3 locks held by kworker/0:18/5738:
#0:
ffff888012864d38
(
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1:
ffffc90005e97d00
(
(work_completion)(&data->fib_event_work)
){+.+.}-{0:0}
, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2:
ffff888077997240
(&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2df/0x58a0 drivers/net/netdevsim/fib.c:1489
1 lock held by syz-executor.3/19855:
#0:
ffff88807ee500e0
(
&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
5 locks held by f2fs_ckpt-7:3/19874:
1 lock held by syz-executor.3/19931:
#0:
ffff88807ee500e0
(
&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.3/19932:
#0:
ffff88807ee500e0
(&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.3/19933:
#0:
ffff88807ee500e0
(
&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.3/19988:
#0:
ffff88807ee500e0
(
&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.3/19989:
#0:
ffff88807ee500e0
(
&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.3/19990:
#0:
ffff88807ee500e0
(&type->s_umount_key
#51
){++++}-{3:3}
, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc5-syzkaller-00144-g84368d882b96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e3/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x19b/0x3e0 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+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4923 Comm: kworker/1:14 Not tainted 6.1.0-rc5-syzkaller-00144-g84368d882b96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
RIP: 0010:hlock_class kernel/locking/lockdep.c:227 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4754 [inline]
RIP: 0010:__lock_acquire+0x787/0x1f60 kernel/locking/lockdep.c:5005
Code: 41 8b 2f 81 e5 ff 1f 00 00 48 89 e8 48 c1 e8 06 48 8d 3c c5 40 31 74 90 be 08 00 00 00 e8 d1 98 75 00 48 0f a3 2d b9 3d 08 0f <72> 37 48 ba 00 00 00 00 00 fc ff df 48 8b 44 24 50 0f b6 04 10 84
RSP: 0018:ffffc90015297988 EFLAGS: 00000057
RAX: 0000000000000001 RBX: ffff88807a9ca7b0 RCX: ffffffff816bf37f
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90743178
RBP: 00000000000001ec R08: dffffc0000000000 R09: fffffbfff20e8630
R10: fffffbfff20e8630 R11: 1ffffffff20e862f R12: 0000000000000000
R13: ffff88807a9c9d04 R14: 0000000000000000 R15: ffff88807a9ca7b0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0268316e0 CR3: 000000007c456000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
wg_ratelimiter_gc_entries+0x5c/0x4a0 drivers/net/wireguard/ratelimiter.c:63
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306