INFO: task syz-executor.1:32426 blocked for more than 143 seconds.
      Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:24448 pid:32426 ppid:5035   flags:0x00004006
Call Trace:
 <TASK>
 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_grant_head_wait+0x387/0x910 fs/xfs/xfs_log.c:307
 xlog_grant_head_check+0x299/0x480
 xfs_log_reserve+0x3c4/0xb10 fs/xfs/xfs_log.c:486
 xfs_trans_reserve+0x239/0x6a0 fs/xfs/xfs_trans.c:194
 xfs_trans_alloc+0x420/0x810 fs/xfs/xfs_trans.c:283
 xfs_sync_sb+0xb3/0x190 fs/xfs/libxfs/xfs_sb.c:1007
 xfs_mountfs+0x141a/0x1f10 fs/xfs/xfs_mount.c:893
 xfs_fs_fill_super+0xfd7/0x1230 fs/xfs/xfs_super.c:1714
 get_tree_bdev+0x468/0x6c0 fs/super.c:1319
 vfs_get_tree+0x8c/0x270 fs/super.c:1520
 do_new_mount+0x28f/0xae0 fs/namespace.c:3335
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
 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: 0033:0x7f4506c8d8ba
RSP: 002b:00007f4507a7ef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000bb2c RCX: 00007f4506c8d8ba
RDX: 00000000200000c0 RSI: 000000002000bb40 RDI: 00007f4507a7efe0
RBP: 00007f4507a7f020 R08: 00007f4507a7f020 R09: 0000000002000000
R10: 0000000002000000 R11: 0000000000000202 R12: 00000000200000c0
R13: 000000002000bb40 R14: 00007f4507a7efe0 R15: 0000000020000080
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8cf27530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8cf278f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
 #0: ffffffff8cf27360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4750:
 #0: ffff88814aef3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.1/32426:
 #0: ffff88807a40e0e0 (&type->s_umount_key#63/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
3 locks held by syz-executor.4/1838:

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

NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __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
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4430 Comm: syslogd Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:new_sync_read fs/read_write.c:390 [inline]
RIP: 0010:vfs_read+0x798/0xb00 fs/read_write.c:470
Code: 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 bd be f0 ff 48 8d bc 24 80 00 00 00 48 8d b4 24 d0 00 00 00 ff 13 49 89 c7 <48> c7 c7 ef fd ff ff 48 89 c6 e8 d9 cc 98 ff 49 81 ff ef fd ff ff
RSP: 0018:ffffc9000316fcc0 EFLAGS: 00000246
RAX: 0000000000000049 RBX: ffffffff8bd42180 RCX: ffffffff889519bf
RDX: 0000000000000008 RSI: ffffc9000316fbf0 RDI: ffffc9000316fdb0
RBP: ffffc9000316fe30 R08: 0000000000000001 R09: 0000000000000001
R10: 000055abb0f66950 R11: 00000000000000b6 R12: 1ffff9200062dfa4
R13: ffff88802a27ea00 R14: 1ffff9200062dfa9 R15: 0000000000000049
FS:  00007f7da446c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f526effe000 CR3: 0000000015fa4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 ksys_read+0x1a0/0x2c0 fs/read_write.c:613
 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: 0033:0x7f7da45c0b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffcd74aa698 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7da45c0b6a
RDX: 00000000000000ff RSI: 000055abb0f66950 RDI: 0000000000000000
RBP: 000055abb0f66910 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f7da475f3a3 R11: 0000000000000246 R12: 000055abb0f66982
R13: 000055abb0f66950 R14: 0000000000000000 R15: 00007f7da479da80
 </TASK>