INFO: task syz-executor:5791 blocked for more than 143 seconds.
Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:21216 pid:5791 tgid:5791 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1843/0x4ae0 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6767
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2591
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa37/0xc50 kernel/workqueue.c:4217
flush_work kernel/workqueue.c:4238 [inline]
flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4260
invalidate_dquots fs/quota/dquot.c:577 [inline]
dquot_disable+0x7a7/0x1cd0 fs/quota/dquot.c:2295
ocfs2_disable_quotas+0xf3/0x210 fs/ocfs2/super.c:963
ocfs2_dismount_volume+0x1ad/0x8f0 fs/ocfs2/super.c:1870
generic_shutdown_super+0x139/0x2d0 fs/super.c:642
kill_block_super+0x44/0x90 fs/super.c:1696
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
task_work_run+0x24f/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:939
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
__do_sys_exit_group kernel/exit.c:1099 [inline]
__se_sys_exit_group kernel/exit.c:1097 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097
x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f02e3b7dff9
RSP: 002b:00007ffedc5320e8 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f02e3bf0159 RCX: 00007f02e3b7dff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000000000d R08: 00007ffedc52fe86 R09: 00007ffedc5333a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffedc5333a0
R13: 00007f02e3bf0134 R14: 000000000001b157 R15: 00007ffedc534460
Showing all locks held in the system:
3 locks held by kworker/u8:0/11:
#0:
ffff88801ac89148
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3204 [inline]
, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90000107d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000107d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2:
ffffffff8fcbf548
(
rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
2 locks held by kworker/u8:3/53:
5 locks held by kworker/u8:4/64:
3 locks held by kworker/1:2/1845:
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc9000485fd00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000485fd00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888143ed5240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2d1/0x4130 drivers/net/netdevsim/fib.c:1488
3 locks held by kworker/u8:6/2970:
#0: ffff88814b7b4148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88814b7b4148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90009fc7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90009fc7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcbf548 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196
7 locks held by kworker/u8:8/3974:
2 locks held by getty/4972:
#0:
ffff8880333b10a0
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5791:
#0:
ffff88807f2d00e0
(
&type->s_umount_key#58){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
&type->s_umount_key#58){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
&type->s_umount_key#58){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/6047:
#0: ffff88806c4dc0e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88806c4dc0e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88806c4dc0e0 (&type->s_umount_key#32){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/6180:
#0: ffff8880732940e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880732940e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880732940e0 (&type->s_umount_key#32){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz.1.131/6468:
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz-executor/6471:
#0:
ffff888030c720e0
(
&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
&type->s_umount_key#32){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
&type->s_umount_key#32){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz.0.145/6597:
#0: ffff88802beb80e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.2.154/6814:
#0: ffff8880732940e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880732940e0 (&type->s_umount_key#32){++++}-{3:3}, at: super_lock+0x196/0x400 fs/super.c:120
1 lock held by syz.1.157/6821:
#0:
ffff88807f2d00e0
(
&type->s_umount_key#58){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
&type->s_umount_key#58){++++}-{3:3}, at: super_lock+0x196/0x400 fs/super.c:120
1 lock held by syz.1.222/7157:
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.2.223/7151:
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.4.242/7318:
#0:
ffff888030c720e0
(
&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
&type->s_umount_key#32){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.4.242/7319:
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88807f2d00e0 (&type->s_umount_key#58){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz.3.244/7328:
#0: ffff88806c4dc0e0 (&type->s_umount_key#32){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88806c4dc0e0 (&type->s_umount_key#32){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz-executor/7361:
#0: ffffffff8fcbf548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcbf548 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6643
1 lock held by syz-executor/7369:
#0:
ffffffff8fcbf548 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
ffffffff8fcbf548 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6643
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 3974 Comm: kworker/u8:8 Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound quota_release_workfn
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:149 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:256 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:212
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 a3 97 ac 03 0f 1f
RSP: 0018:ffffc90000007e68 EFLAGS: 00000046
RAX: 00000000000818a4 RBX: 0000000000000020 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000818a4 RDI: 0000000000000838
RBP: 00000000000818a4 R08: ffffffff81856979 R09: 1ffffffff20377cd
R10: dffffc0000000000 R11: ffffffff813eb4e0 R12: 00000000008186f7
R13: dffffc0000000000 R14: 0000000010006804 R15: ffff8880b8628340
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f63b4d07ab8 CR3: 0000000029a4e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
apic_write arch/x86/include/asm/apic.h:405 [inline]
lapic_next_event+0x11/0x20 arch/x86/kernel/apic/apic.c:415
clockevents_program_event+0x1c1/0x350 kernel/time/clockevents.c:334
hrtimer_interrupt+0x54a/0x990 kernel/time/hrtimer.c:1830
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1043
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2042 [inline]
RIP: 0010:vprintk_emit+0x700/0xa10 kernel/printk/printk.c:2406
Code: 00 e8 f4 c1 20 00 4c 8d bc 24 a0 00 00 00 4d 85 e4 75 07 e8 e2 c1 20 00 eb 06 e8 db c1 20 00 fb 49 bc 00 00 00 00 00 fc ff df <48> c7 c7 c0 33 81 8e 31 f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00
RSP: 0018:ffffc9000c217600 EFLAGS: 00000293
RAX: ffffffff817414b5 RBX: 0000000000000000 RCX: ffff88803211da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c217710 R08: ffffffff8174148e R09: 1ffffffff285212a
R10: dffffc0000000000 R11: fffffbfff285212b R12: dffffc0000000000
R13: 1ffff92001842ec4 R14: ffffffff817412f0 R15: ffffc9000c2176a0
_printk+0xd5/0x120 kernel/printk/printk.c:2432
__mlog_printk+0x281/0x2b0 fs/ocfs2/cluster/masklog.c:77
ocfs2_release_dquot+0x761/0xc40 fs/ocfs2/quota_global.c:795
quota_release_workfn+0x39f/0x650 fs/quota/dquot.c:839
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244