INFO: task syz-executor216:4331 blocked for more than 143 seconds.
Not tainted 6.1.126-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor216 state:D stack:24456 pid:4331 ppid:4268 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0xac/0x300 kernel/time/timer.c:1941
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x350/0x610 kernel/sched/completion.c:138
kthread_stop+0x1ab/0x690 kernel/kthread.c:711
signal_our_withdraw fs/gfs2/util.c:159 [inline]
gfs2_withdraw+0x5c1/0x1550 fs/gfs2/util.c:354
gfs2_metatype_check_ii+0x75/0x90 fs/gfs2/util.c:533
gfs2_metatype_check_i fs/gfs2/util.h:129 [inline]
gfs2_quota_init+0xe06/0x1110 fs/gfs2/quota.c:1406
gfs2_make_fs_rw+0x436/0x5b0 fs/gfs2/super.c:155
gfs2_fill_super+0x2327/0x2680 fs/gfs2/ops_fstype.c:1271
get_tree_bdev+0x3fe/0x620 fs/super.c:1366
gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1327
vfs_get_tree+0x88/0x270 fs/super.c:1573
do_new_mount+0x2ba/0xb40 fs/namespace.c:3056
do_mount fs/namespace.c:3399 [inline]
__do_sys_mount fs/namespace.c:3607 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3584
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6de95d825a
RSP: 002b:00007ffcfc6fd388 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffcfc6fd3a0 RCX: 00007f6de95d825a
RDX: 0000000020000400 RSI: 0000000020000040 RDI: 00007ffcfc6fd3a0
RBP: 0000000000000004 R08: 00007ffcfc6fd3e0 R09: 00000000000125b5
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 00007ffcfc6fd3e0 R14: 0000000000000003 R15: 0000000001000000
INFO: task gfs2_quotad:4340 blocked for more than 144 seconds.
Not tainted 6.1.126-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:gfs2_quotad state:D stack:27672 pid:4340 ppid:2 flags:0x00024000
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
bit_wait+0xe/0xc0 kernel/sched/wait_bit.c:199
__wait_on_bit+0xa8/0x2e0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d0/0x250 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
__gfs2_glock_dq+0x700/0xa90 fs/gfs2/glock.c:1641
gfs2_glock_dq+0x1b5/0x1d0 fs/gfs2/glock.c:1713
gfs2_glock_dq_uninit+0x24/0xe0 fs/gfs2/glock.c:1733
gfs2_statfs_sync+0x7d9/0x860 fs/gfs2/super.c:310
quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
gfs2_quotad+0x37b/0x670 fs/gfs2/quota.c:1561
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d32b290 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d32ba90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/27:
#0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510
2 locks held by kworker/u4:4/1072:
#0: ffff888017c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90004c1fd20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
2 locks held by getty/4004:
#0: ffff888030bdb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198
1 lock held by udevd/4280:
#0: ffff888148dae0c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
#0: ffff888148dae0c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226
1 lock held by udevd/4281:
#0: ffff888148dad5c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
#0: ffff888148dad5c0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226
1 lock held by udevd/4282:
#0: ffff888148daebc0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
#0: ffff888148daebc0 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226
2 locks held by kworker/u4:5/4284:
#0:
ffff888017c79138
((wq_completion)events_unbound
){+.+.}-{0:0}
, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1:
ffffc90003f57d20
(connector_reaper_work
){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
2 locks held by syz-executor216/4331:
#0: ffff888076b920e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
#1:
ffff888028485248
(&sdp->sd_freeze_mutex
){+.+.}-{3:3}
, at: signal_our_withdraw fs/gfs2/util.c:155 [inline]
, at: gfs2_withdraw+0x55c/0x1550 fs/gfs2/util.c:354
2 locks held by syz-executor216/4974:
1 lock held by syz-executor216/4976:
#0: ffff8880b8e3a9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.126-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ae/0x3f0 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+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4979 Comm: syz-executor216 Not tainted 6.1.126-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:asm_exc_page_fault+0x0/0x30 arch/x86/include/asm/idtentry.h:607
Code: 74 24 28 ff 74 24 28 ff 74 24 28 ff 74 24 28 e8 f6 05 00 00 48 89 c4 48 89 e7 e8 3b 84 f2 ff e9 d6 06 00 00 66 0f 1f 44 00 00 <0f> 01 ca fc e8 d7 05 00 00 48 89 c4 48 89 e7 48 8b 74 24 78 48 c7
RSP: 0000:fffffe0000049fd0 EFLAGS: 00000006
RAX: 0000000000d44001 RBX: 00007ffcfc6fcab0 RCX: 000000000000006f
RDX: 0000000000000015 RSI: 0000000000000001 RDI: 00007ffcfc6fcb50
RBP: 0000000000000102 R08: 00007f6de1198000 R09: 0000000000d44000
R10: 0000000000000000 R11: 00007ffcfc6fcac0 R12: 0000000000000001
R13: 00007f6de96327a0 R14: 0000000000000000 R15: 00007ffcfc6fcb50
FS: 0000555574620380(0000) GS:ffff8880b8f00000(0000) knlGS:ffff8880b8f00000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6de1edc000 CR3: 0000000024b4e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace: