INFO: task syz-executor.4:3670 blocked for more than 143 seconds.
Not tainted 6.1.0-rc6-syzkaller-00375-gcf562a45a0d5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:18192 pid:3670 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
schedule_timeout+0x98/0x2f0 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
__flush_work+0x110/0x190 kernel/workqueue.c:3073
nilfs_segctor_destroy fs/nilfs2/segment.c:2730 [inline]
nilfs_detach_log_writer+0x4b1/0xbd0 fs/nilfs2/segment.c:2814
nilfs_put_super+0x4b/0x150 fs/nilfs2/super.c:468
generic_shutdown_super+0x130/0x310 fs/super.c:492
kill_block_super+0x79/0xd0 fs/super.c:1428
deactivate_locked_super+0xa7/0xf0 fs/super.c:332
cleanup_mnt+0x494/0x520 fs/namespace.c:1186
task_work_run+0x243/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f39e088d547
RSP: 002b:00007ffce70b32c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f39e088d547
RDX: 00007ffce70b339c RSI: 000000000000000a RDI: 00007ffce70b3390
RBP: 00007ffce70b3390 R08: 00000000ffffffff R09: 00007ffce70b3160
R10: 0000555556c3a8b3 R11: 0000000000000246 R12: 00007f39e08e6b24
R13: 00007ffce70b4450 R14: 0000555556c3a810 R15: 00007ffce70b4490
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d1272b0 (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: ffffffff8d127ab0 (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: ffffffff8d1270e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3306:
#0: ffff888028563098 (&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+0x53b/0x1650 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.4/3670:
#0: ffff88803a17c0e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0x96/0xd0 fs/super.c:362
3 locks held by kworker/1:4/3715:
#0: ffff888012864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90004c2fd00 ((work_completion)(&sci->sc_iput_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff88803a17c650 (sb_internal#4){.+.+}-{0:0}, at: nilfs_evict_inode+0x13f/0x3d0 fs/nilfs2/inode.c:928
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc6-syzkaller-00375-gcf562a45a0d5 #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+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 30444 Comm: kworker/u4:11 Not tainted 6.1.0-rc6-syzkaller-00375-gcf562a45a0d5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy13 ieee80211_iface_work
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:84 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x70/0x2e0 mm/kasan/generic.c:189
Code: 8d 54 37 ff 49 c1 ea 03 48 bb 01 00 00 00 00 fc ff df 49 01 da 4d 89 d6 4d 29 ce 49 83 fe 10 7f 30 4d 85 f6 0f 84 8e 01 00 00 <4c> 89 cb 4c 29 d3 66 2e 0f 1f 84 00 00 00 00 00 41 80 39 00 0f 85
RSP: 0018:ffffc90008a278d0 EFLAGS: 00000002
RAX: 0000000000000001 RBX: dffffc0000000001 RCX: ffffffff816ab0ba
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff905971a0
RBP: 000000000001ffff R08: dffffc0000000000 R09: fffffbfff20b2e34
R10: fffffbfff20b2e35 R11: 1ffffffff20b2e34 R12: ffff888017a6c540
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888017a6c520
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ca7d6e22b0 CR3: 000000000ce8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:72 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:227 [inline]
mark_lock+0x9a/0x350 kernel/locking/lockdep.c:4612
mark_held_locks kernel/locking/lockdep.c:4236 [inline]
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4262 [inline]
lockdep_hardirqs_on_prepare+0x390/0x790 kernel/locking/lockdep.c:4321
trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49
__local_bh_enable_ip+0x13a/0x1c0 kernel/softirq.c:401
spin_unlock_bh include/linux/spinlock.h:395 [inline]
ieee80211_ibss_work+0x343/0x1540 net/mac80211/ibss.c:1701
process_one_work+0x877/0xdb0 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