INFO: task kworker/0:1H:994 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1H state:D stack:25904 pid:994 ppid:2 flags:0x00004000
Workqueue: xfs-log/loop0 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+0x1cd/0x6c0 fs/xfs/xfs_buf_item.c:581
xfs_trans_committed_bulk+0x346/0x830 fs/xfs/xfs_trans.c:808
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:2408
worker_thread+0xa63/0x1210 kernel/workqueue.c:2555
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.0:11362 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26592 pid:11362 ppid:5022 flags:0x00004004
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+0xb38/0x11d0 fs/xfs/xfs_trans.c:1021
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: 0033:0x7effdb28c389
RSP: 002b:00007effd39bc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007effdb3ac120 RCX: 00007effdb28c389
RDX: 0000000020000000 RSI: 0000000041009432 RDI: 0000000000000004
RBP: 00007effdb2d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffd2636e3f R14: 00007effd39bc300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf276f0 (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: ffffffff8cf27ab0 (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: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
7 locks held by kworker/u4:3/46:
#0: ffff8880b993bf98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#1: ffffc90000b77d20 ((work_completion)(&work->normal_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2383
#2: ffff8880b993bf98 (&rq->__lock){-.-.}-{2:2}, at: __rq_lockp kernel/sched/sched.h:1241 [inline]
#2: ffff8880b993bf98 (&rq->__lock){-.-.}-{2:2}, at: finish_lock_switch+0x57/0x110 kernel/sched/core.c:5093
#3: ffffe8ffffd83708 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x199/0x770 kernel/sched/psi.c:946
#4: ffff8880b99295d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
#5: ffffffff91df2bf0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16f/0x8b0 lib/debugobjects.c:708
#6: ffffffff91da5550 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:1011 [inline]
#6: ffffffff91da5550 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0xd6/0x650 lib/debugobjects.c:1054
2 locks held by kworker/0:1H/994:
#0: ffff88807ad31938 ((wq_completion)xfs-log/loop0){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2381
#1: ffffc900051b7d20 ((work_completion)(&iclog->ic_end_io_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2383
2 locks held by kworker/1:2/4408:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2381
#1: ffffc90005fb7d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2383
2 locks held by getty/4752:
#0: ffff88802c75a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by syz-executor.3/5032:
#0: ffff8880935800e0 (&type->s_umount_key#66){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
#1: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.0/11362:
#0: ffff888074aea460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x1f0 fs/namespace.c:438
8 locks held by syz-executor.5/15978:
1 lock held by syz-executor.5/16010:
2 locks held by syz-executor.5/16017:
#0: ffff888097082460 (sb_writers#19){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1253
#1: ffff88803f458598 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#1: ffff88803f458598 (&sb->s_type->i_mutex_key#24){++++}-{3:3}, at: btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:178
5 locks held by syz-executor.5/16023:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
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 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:112