INFO: task syz.4.30:4522 blocked for more than 144 seconds.
      Not tainted 6.1.135-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.30        state:D stack:25096 pid:4522  ppid:4256   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
 schedule+0xb9/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x97/0x280 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+0x2b9/0x590 kernel/sched/completion.c:138
 kthread_stop+0x197/0x650 kernel/kthread.c:711
 signal_our_withdraw fs/gfs2/util.c:159 [inline]
 gfs2_withdraw+0x643/0x1780 fs/gfs2/util.c:354
 gfs2_metatype_check_ii+0x74/0x90 fs/gfs2/util.c:533
 gfs2_metatype_check_i fs/gfs2/util.h:129 [inline]
 gfs2_quota_init+0xc81/0xe80 fs/gfs2/quota.c:1406
 gfs2_make_fs_rw+0x3f5/0x560 fs/gfs2/super.c:155
 gfs2_fill_super+0x1888/0x1f80 fs/gfs2/ops_fstype.c:1271
 get_tree_bdev+0x3f1/0x610 fs/super.c:1366
 gfs2_get_tree+0x4d/0x1e0 fs/gfs2/ops_fstype.c:1327
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x24a/0xa40 fs/namespace.c:3057
 do_mount fs/namespace.c:3400 [inline]
 __do_sys_mount fs/namespace.c:3608 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3585
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2a6639010a
RSP: 002b:00007f2a661bce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2a661bcef0 RCX: 00007f2a6639010a
RDX: 0000200000000100 RSI: 0000200000012500 RDI: 00007f2a661bceb0
RBP: 0000200000000100 R08: 00007f2a661bcef0 R09: 0000000000004004
R10: 0000000000004004 R11: 0000000000000246 R12: 0000200000012500
R13: 00007f2a661bceb0 R14: 00000000000125bb R15: 0000200000000600
 </TASK>
INFO: task gfs2_quotad:4526 blocked for more than 145 seconds.
      Not tainted 6.1.135-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:gfs2_quotad     state:D stack:27080 pid:4526  ppid:2      flags:0x00024000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
 schedule+0xb9/0x180 kernel/sched/core.c:6637
 bit_wait+0xd/0xc0 kernel/sched/wait_bit.c:199
 __wait_on_bit+0xa8/0x2d0 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0x11f/0x160 kernel/sched/wait_bit.c:64
 wait_on_bit include/linux/wait_bit.h:76 [inline]
 __gfs2_glock_dq+0x6b1/0xa20 fs/gfs2/glock.c:1641
 gfs2_glock_dq+0x1a8/0x1c0 fs/gfs2/glock.c:1713
 gfs2_glock_dq_uninit+0x24/0xe0 fs/gfs2/glock.c:1733
 gfs2_statfs_sync+0x6fe/0x780 fs/gfs2/super.c:310
 quotad_check_timeo fs/gfs2/quota.c:1519 [inline]
 gfs2_quotad+0x380/0x670 fs/gfs2/quota.c:1561
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8c92b370 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8c92bb90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
 #0: ffffffff8c92a9e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #0: ffffffff8c92a9e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #0: ffffffff8c92a9e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6513
2 locks held by getty/4007:
 #0: ffff88814dc58098 (&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+0x41b/0x1380 drivers/tty/n_tty.c:2198
2 locks held by syz.4.30/4522:
 #0: ffff88807c75a0e0 (&type->s_umount_key#68/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930 fs/super.c:228
 #1: ffff8880264d1248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: signal_our_withdraw fs/gfs2/util.c:155 [inline]
 #1: ffff8880264d1248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x5d0/0x1780 fs/gfs2/util.c:354
2 locks held by syz.0.461/5913:
1 lock held by syz.2.464/5917:
 #0: ffff8880b8e3aa58 (&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: 28 Comm: khungtaskd Not tainted 6.1.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x3f4/0x470 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1d4/0x450 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+0xeee/0xf30 kernel/hung_task.c:377
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4238 Comm: syz-executor Not tainted 6.1.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:get_timespec64+0x0/0x1a0 kernel/time/time.c:783
Code: 5c 41 5d 41 5e 41 5f 5d c3 b0 01 84 c0 74 ba e8 36 ee 10 00 49 be ff ff ff ff ff ff ff 7f 31 db eb ac e8 83 1b 9f 08 0f 1f 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 83 ec 60 49
RSP: 0018:ffffc90003c07e58 EFLAGS: 00000282
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff88807e2d1dc0
RDX: 0000000000000000 RSI: 00007ffd01a253b0 RDI: ffffc90003c07ea0
RBP: ffffc90003c07f10 R08: dffffc0000000000 R09: ffffc90003c07ea0
R10: fffff52000780fd6 R11: 1ffff92000780fd4 R12: ffffffff8a6e2610
R13: ffffc90003c07ea0 R14: 0000000000000000 R15: 1ffffffff14dc4c2
FS:  0000555569c55500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5547d7fab8 CR3: 0000000023cd8000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1302 [inline]
 __se_sys_clock_nanosleep+0x1ab/0x370 kernel/time/posix-timers.c:1290
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f96a6fc11e3
Code: 1f 84 00 00 00 00 00 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d 5e 33 1c 00 00 74 14 b8 e6 00 00 00 0f 05 <f7> d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10
RSP: 002b:00007ffd01a25398 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f96a6fc11e3
RDX: 00007ffd01a253b0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000000000fd R09: 0027900f340d9a34
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd01a25800
R13: 0000000000000004 R14: 00007ffd01a253ec R15: 00007ffd01a25480
 </TASK>