INFO: task syz-executor.3:20615 blocked for more than 143 seconds.
Not tainted 6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28464 pid:20615 ppid:3641 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
sync_fs_one_sb fs/sync.c:84 [inline]
sync_fs_one_sb+0x107/0x140 fs/sync.c:80
iterate_supers+0x13c/0x290 fs/super.c:724
ksys_sync+0xa8/0x150 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+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fed6468b639
RSP: 002b:00007fed652fe168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fed647ac120 RCX: 00007fed6468b639
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fed646e67e1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe76379a5f R14: 00007fed652fe300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0:
ffffffff8bf85170
(
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/12:
#0:
ffffffff8bf84e70
(
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/27:
#0:
ffffffff8bf85cc0
(
rcu_read_lock
){....}-{1:2}
, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/3286:
#0:
ffff88801d964098
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1:
ffffc900020282f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
2 locks held by kworker/0:18/6221:
#0:
ffff888011872538
(
(wq_completion)rcu_gp
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1:
ffffc9000689fda8
((work_completion)(&rew->rew_work)
){+.+.}-{0:0}
, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
2 locks held by kworker/u4:19/11936:
3 locks held by kworker/0:11/16606:
#0:
ffff888011861d38
(
(wq_completion)events
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1:
ffffc900035d7da8
(
(work_completion)(&data->fib_event_work)
){+.+.}-{0:0}
, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2:
ffff88807a770240
(
&data->fib_lock
){+.+.}-{3:3}
, at: nsim_fib_event_work+0x1d1/0x24a0 drivers/net/netdevsim/fib.c:1489
1 lock held by syz-executor.3/20615:
#0:
ffff8880743480e0
(
&type->s_umount_key
#81
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
5 locks held by f2fs_ckpt-7:3/20612:
3 locks held by kworker/0:1/20759:
#0:
ffff88814a63dd38
(
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
, at: set_work_data kernel/workqueue.c:636 [inline]
, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1:
ffffc90006687da8
(
(work_completion)(&(&ifa->dad_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2:
ffffffff8d7af668
(
rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_dad_work+0xa3/0x12d0 net/ipv6/addrconf.c:4083
1 lock held by syz-executor.3/20768:
#0:
ffff8880743480e0
(
&type->s_umount_key
#81
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
3 locks held by syz-executor.3/20815:
#0:
ffffffff8d7af668
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
#1:
ffff88808e0f53e8
(
&wg->device_update_lock
){+.+.}-{3:3}
, at: wg_open+0x1f3/0x490 drivers/net/wireguard/device.c:49
#2:
ffffffff8bf90978
(
rcu_state.exp_mutex
){+.+.}-{3:3}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
, at: synchronize_rcu_expedited+0x5db/0x770 kernel/rcu/tree_exp.h:946
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #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+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 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+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 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: 15380 Comm: kworker/1:8 Not tainted 6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #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:lockdep_enabled kernel/locking/lockdep.c:121 [inline]
RIP: 0010:lock_is_held_type+0x42/0x140 kernel/locking/lockdep.c:5704
Code: 53 04 85 c9 0f 84 d9 00 00 00 65 8b 05 97 e4 73 76 85 c0 0f 85 ca 00 00 00 65 4c 8b 24 25 80 6f 02 00 41 8b 94 24 4c 0a 00 00 <85> d2 0f 85 b1 00 00 00 48 89 fd 41 89 f6 9c 8f 04 24 fa 48 c7 c7
RSP: 0018:ffffc90004b27b78 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000964f7c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8bf85c00
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8de18397
R10: fffffbfff1bc3072 R11: 0000000000000000 R12: ffff888088ea8040
R13: 00000000ffffffff R14: ffffffff8ccb97d8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005603c5c28510 CR3: 000000000bc8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x4fc/0x630 kernel/locking/lockdep.c:5639
__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+0x5d/0x430 drivers/net/wireguard/ratelimiter.c:63
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306