INFO: task syz-executor.3:16721 blocked for more than 143 seconds.
      Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:28176 pid:16721 tgid:16674 ppid:15576  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6838
 xfs_ail_push_all_sync+0x171/0x230 fs/xfs/xfs_trans_ail.c:742
 xfs_log_quiesce+0xac/0x330 fs/xfs/xfs_log.c:1070
 xfs_log_clean+0x15/0x20 fs/xfs/xfs_log.c:1082
 xfs_remount_ro fs/xfs/xfs_super.c:1891 [inline]
 xfs_fs_reconfigure+0x894/0xa50 fs/xfs/xfs_super.c:1947
 reconfigure_super+0x44f/0xb20 fs/super.c:1071
 vfs_cmd_reconfigure fs/fsopen.c:267 [inline]
 vfs_fsconfig_locked fs/fsopen.c:296 [inline]
 __do_sys_fsconfig+0x991/0xb90 fs/fsopen.c:476
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0f2f07dca9
RSP: 002b:00007f0f2ebff0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f0f2f1ac050 RCX: 00007f0f2f07dca9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000007
RBP: 00007f0f2f0c947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0f2f1ac050 R15: 00007ffcd55f6108
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #0: ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4828:
 #0: ffff88802a70b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.3/16721:
 #0: ffff888068dbe870 (&fc->uapi_mutex){+.+.}-{3:3}, at: __do_sys_fsconfig+0x7d4/0xb90 fs/fsopen.c:474
 #1: ffff888067bf80e0 (&type->s_umount_key#89){++++}-{3:3}, at: vfs_cmd_reconfigure fs/fsopen.c:266 [inline]
 #1: ffff888067bf80e0 (&type->s_umount_key#89){++++}-{3:3}, at: vfs_fsconfig_locked fs/fsopen.c:296 [inline]
 #1: ffff888067bf80e0 (&type->s_umount_key#89){++++}-{3:3}, at: __do_sys_fsconfig+0x987/0xb90 fs/fsopen.c:476

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xf86/0x1240 kernel/hung_task.c:380
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: bat_events batadv_purge_orig
RIP: 0010:trace_irq_enable.constprop.0+0xdf/0x130 include/trace/events/preemptirq.h:40
Code: 3c 02 00 75 6f 48 8b 7d 08 31 d2 48 89 de e8 18 f4 ff ff 65 ff 0d 09 f7 6e 7e 0f 85 31 ff ff ff e8 b6 bc 6b ff e9 2e ff ff ff <e8> ac 55 df ff 84 c0 0f 85 58 ff ff ff 80 3d cc 0f f4 0d 00 0f 85
RSP: 0018:ffffc90000aa7b28 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8194dfe6
RDX: fffffbfff1f3ea43 RSI: 0000000000000008 RDI: ffffffff8f9f5210
RBP: ffffffff8aa1c2d0 R08: 0000000000000000 R09: fffffbfff1f3ea42
R10: ffffffff8f9f5217 R11: 0000000000000002 R12: 000000000003d78c
R13: 0000000000000192 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feb2e52e440 CR3: 000000000d57a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 trace_hardirqs_on+0x26/0x40 kernel/trace/trace_preemptirq.c:56
 __local_bh_enable_ip+0xa4/0x120 kernel/softirq.c:387
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 batadv_purge_orig_ref+0xec0/0x1520 net/batman-adv/originator.c:1287
 batadv_purge_orig+0x19/0x60 net/batman-adv/originator.c:1300
 process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3348 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3429
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>