INFO: task kworker/1:1H:52 blocked for more than 143 seconds.
Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1H state:D stack:22008 pid:52 ppid:2 flags:0x00004000
Workqueue: glock_workqueue glock_work_func
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
freeze_super+0x45/0x420 fs/super.c:1697
freeze_go_sync+0x178/0x340 fs/gfs2/glops.c:573
do_xmote+0x34d/0x13d0 fs/gfs2/glock.c:776
glock_work_func+0x2c2/0x450 fs/gfs2/glock.c:1082
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
INFO: task syz-executor.3:4876 blocked for more than 143 seconds.
Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:20872 pid:4876 ppid:3647 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
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_workqueue+0x74a/0x1680 kernel/workqueue.c:2861
gfs2_gl_hash_clear+0xbe/0x300 fs/gfs2/glock.c:2262
gfs2_fill_super+0x2202/0x2700 fs/gfs2/ops_fstype.c:1307
get_tree_bdev+0x400/0x620 fs/super.c:1324
gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1330
vfs_get_tree+0x88/0x270 fs/super.c:1531
do_new_mount+0x289/0xad0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0fd3c8cb6a
RSP: 002b:00007f0fd49d3f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f0fd3c8cb6a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f0fd49d3fe0
RBP: 00007f0fd49d4020 R08: 00007f0fd49d4020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f0fd49d3fe0 R15: 0000000020047a20
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cb227f0 (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: ffffffff8cb22ff0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by ksoftirqd/1/21:
1 lock held by khungtaskd/28:
#0: ffffffff8cb22620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/1:1H/52:
#0: ffff88801924e538 ((wq_completion)glock_workqueue){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90000bd7d00 ((work_completion)(&(&gl->gl_work)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: freeze_super+0x45/0x420 fs/super.c:1697
1 lock held by syslogd/2956:
#0: ffff8880b9b39d98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:537
2 locks held by getty/3287:
#0: ffff888140b6f098 (&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
2 locks held by kworker/0:17/5449:
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90003947d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
3 locks held by kworker/u4:10/3337:
1 lock held by syz-executor.3/4876:
#0: ffff88807dc8c0e0 (&type->s_umount_key#114/1){+.+.}-{3:3}, at: alloc_super+0x212/0x920 fs/super.c:228
1 lock held by syz-executor.2/4924:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.2/4928:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.2/4929:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.2/4934:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.2/5068:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.2/5069:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
1 lock held by syz-executor.2/5070:
#0: ffff88807dc8c0e0 (&type->s_umount_key#115){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
2 locks held by dhcpcd/5075:
#0: ffff8880273b8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline]
#0: ffff8880273b8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194
#1: ffffffff8cb27bf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#1: ffffffff8cb27bf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 kernel/rcu/tree_exp.h:946
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2974 Comm: udevd Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:lock_acquire+0x81/0x3c0 kernel/locking/lockdep.c:5636
Code: 4c 8d 6c 24 20 49 c1 ed 03 48 b8 f1 f1 f1 f1 00 f2 f2 f2 4b 89 44 25 00 43 c7 44 25 09 f2 f2 f2 00 43 c7 44 25 11 f3 f3 f3 f3 <66> 43 c7 44 25 15 f3 f3 43 c6 44 25 17 f3 89 54 24 0c 89 4c 24 08
RSP: 0018:ffffc9000315fd00 EFLAGS: 00000a02
RAX: f2f2f200f1f1f1f1 RBX: ffff88807bde8158 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807bde8158
RBP: ffffc9000315fe38 R08: 0000000000000001 R09: 0000000000000000
R10: fffffbfff1c1b886 R11: 1ffffffff1c1b885 R12: dffffc0000000000
R13: 1ffff9200062bfa4 R14: 0000000000000001 R15: 0000000000000000
FS: 00007f8c1acd9840(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00079e778 CR3: 0000000026c27000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__might_fault+0xb2/0x110 mm/memory.c:5646
strncpy_from_user+0x2d/0x330 lib/strncpy_from_user.c:117
getname_flags+0xf5/0x4e0 fs/namei.c:150
getname fs/namei.c:218 [inline]
__do_sys_unlink fs/namei.c:4367 [inline]
__se_sys_unlink fs/namei.c:4365 [inline]
__x64_sys_unlink+0x38/0x50 fs/namei.c:4365
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8c1a9272d7
Code: f0 ff ff 73 01 c3 48 8b 0d 9e db 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 db 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffefebd5058 EFLAGS: 00000202 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8c1a9272d7
RDX: 0000000000000000 RSI: 000000003ad46cc0 RDI: 0000557dacf240d8
RBP: 0000557dae1b5e50 R08: 000000003ad6e343 R09: 0000000000000010
R10: 00007ffefebd90b8 R11: 0000000000000202 R12: 0000000000000bb8
R13: 0000557dae1be310 R14: 0000000000000000 R15: 0000000000000000