INFO: task kworker/1:1H:52 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller-00290-gd635f6cc934b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1H state:D stack:25304 pid:52 ppid:2 flags:0x00004000
Workqueue: xfs-log/loop1 xlog_ioend_work
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143
___down_common+0x33e/0x5e0 kernel/locking/semaphore.c:225
__down_common+0x64/0x250 kernel/locking/semaphore.c:246
down+0x84/0xc0 kernel/locking/semaphore.c:63
xfs_buf_lock+0x154/0x4b0 fs/xfs/xfs_buf.c:1119
xfs_buf_item_unpin+0x200/0x720 fs/xfs/xfs_buf_item.c:547
xfs_trans_committed_bulk+0x346/0x830 fs/xfs/xfs_trans.c:806
xlog_cil_committed+0x26d/0xe40 fs/xfs/xfs_log_cil.c:795
xlog_cil_process_committed+0x159/0x1a0 fs/xfs/xfs_log_cil.c:823
xlog_state_shutdown_callbacks+0x2ba/0x3b0 fs/xfs/xfs_log.c:538
xlog_force_shutdown+0x32c/0x390 fs/xfs/xfs_log.c:3837
xlog_ioend_work+0xad/0x100 fs/xfs/xfs_log.c:1429
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.1:6406 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller-00290-gd635f6cc934b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23208 pid:6406 ppid:5039 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
xlog_wait+0x16e/0x1e0 fs/xfs/xfs_log_priv.h:617
xlog_wait_on_iclog+0x307/0x4e0 fs/xfs/xfs_log.c:926
xfs_log_force_seq+0x1da/0x450 fs/xfs/xfs_log.c:3409
__xfs_trans_commit+0xb4a/0xff0 fs/xfs/xfs_trans.c:1014
xfs_sync_sb_buf+0x14f/0x1e0 fs/xfs/libxfs/xfs_sb.c:1112
xfs_ioc_setlabel fs/xfs/xfs_ioctl.c:1801 [inline]
xfs_file_ioctl+0x1313/0x16a0 fs/xfs/xfs_ioctl.c:1899
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f260e28c169
RSP: 002b:00007f260ef5d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f260e3abf80 RCX: 00007f260e28c169
RDX: 0000000020000400 RSI: 0000000041009432 RDI: 0000000000000004
RBP: 00007f260e2e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffca78b594f R14: 00007f260ef5d300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf27670 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27a30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf274a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/1:1H/52:
#0: ffff888030c01538 ((wq_completion)xfs-log/loop1){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90000bd7d20 ((work_completion)(&iclog->ic_end_io_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
1 lock held by udevd/4446:
2 locks held by getty/4753:
#0: ffff88802d22a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by kworker/u4:10/22286:
1 lock held by syz-executor.1/6406:
#0: ffff88802f4a2460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x1f0 fs/namespace.c:438
2 locks held by udevd/6550:
3 locks held by kworker/u4:4/7411:
1 lock held by syz-executor.3/8304:
1 lock held by syz-executor.5/8285:
1 lock held by syz-executor.2/8287:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-syzkaller-00290-gd635f6cc934b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
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: 5028 Comm: syz-executor.3 Not tainted 6.4.0-rc2-syzkaller-00290-gd635f6cc934b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:__lock_acquire+0x11b5/0x2000 kernel/locking/lockdep.c:5070
Code: 00 fc ff df 0f b6 04 38 84 c0 0f 85 b3 0c 00 00 83 3d 0e c8 46 10 00 0f 84 e2 01 00 00 31 db 48 83 c3 40 48 89 d8 48 c1 e8 03 <80> 3c 38 00 74 12 48 89 df e8 0d 27 78 00 48 bf 00 00 00 00 00 fc
RSP: 0018:ffffc90003d1ecd8 EFLAGS: 00000806
RAX: 1ffffffff2003b6c RBX: ffffffff9001db60 RCX: ffffffff816b26f1
RDX: 0000000000000000 RSI: 0000000000000008 RDI: dffffc0000000000
RBP: edb0c78181d969fe R08: dffffc0000000000 R09: fffffbfff2064e4d
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801f7d0000
R13: ffff88801f7d0000 R14: 0000000000000000 R15: ffff88801f7d0b88
FS: 0000555555bf7400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555c00848 CR3: 0000000041d47000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5691
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
serial8250_console_write+0x1a8/0x1820 drivers/tty/serial/8250/8250_port.c:3417
console_emit_next_record kernel/printk/printk.c:2877 [inline]
console_flush_all+0x75e/0xd70 kernel/printk/printk.c:2933
console_unlock+0xff/0x270 kernel/printk/printk.c:3007
vprintk_emit+0xd5/0x1f0 kernel/printk/printk.c:2307
_printk+0xd5/0x120 kernel/printk/printk.c:2328
bio_check_eod block/blk-core.c:526 [inline]
submit_bio_noacct+0x1133/0x1870 block/blk-core.c:740
xlog_state_release_iclog+0x46d/0x7f0 fs/xfs/xfs_log.c:619
xlog_force_iclog fs/xfs/xfs_log.c:888 [inline]
xlog_force_and_check_iclog fs/xfs/xfs_log.c:3172 [inline]
xlog_force_lsn+0x5e5/0x770 fs/xfs/xfs_log.c:3344
xfs_log_force_seq+0x1da/0x450 fs/xfs/xfs_log.c:3409
__xfs_trans_commit+0xb4a/0xff0 fs/xfs/xfs_trans.c:1014
xfs_sync_sb+0x140/0x190 fs/xfs/libxfs/xfs_sb.c:1015
xfs_log_cover fs/xfs/xfs_log.c:1300 [inline]
xfs_log_quiesce+0x38f/0x680 fs/xfs/xfs_log.c:1109
xfs_log_clean+0xa4/0xc10 fs/xfs/xfs_log.c:1116
xfs_log_unmount+0x2c/0x1c0 fs/xfs/xfs_log.c:1131
xfs_unmountfs+0x1d6/0x280 fs/xfs/xfs_mount.c:1096
xfs_fs_put_super+0x74/0x2d0 fs/xfs/xfs_super.c:1129
generic_shutdown_super+0x134/0x340 fs/super.c:500
kill_block_super+0x84/0xf0 fs/super.c:1407
deactivate_locked_super+0xa4/0x110 fs/super.c:331
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177
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:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd1f168d5d7
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffff98e1cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd1f168d5d7
RDX: 00007ffff98e1dac RSI: 000000000000000a RDI: 00007ffff98e1da0
RBP: 00007ffff98e1da0 R08: 00000000ffffffff R09: 00007ffff98e1b70
R10: 0000555555bf8893 R11: 0000000000000246 R12: 00007fd1f16e6cdc
R13: 00007ffff98e2e60 R14: 0000555555bf8810 R15: 00007ffff98e2ea0