ceph: No mds server is up or the cluster is laggy
------------[ cut here ]------------
lockdep bfs error:-1
WARNING: CPU: 1 PID: 23532 at kernel/locking/lockdep.c:2071 print_bfs_bug+0x24/0x30 kernel/locking/lockdep.c:2071
Modules linked in:
CPU: 1 PID: 23532 Comm: syz-executor412 Not tainted 6.7.0-next-20240119-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:print_bfs_bug+0x24/0x30 kernel/locking/lockdep.c:2071
Code: 90 90 90 90 90 90 55 89 fd 53 e8 97 85 06 03 89 c3 e8 50 fd ff ff 85 db 74 14 90 48 c7 c7 00 c2 ec 8a 89 ee e8 3d a2 e5 ff 90 <0f> 0b 90 90 5b 5d c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003cb7188 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81504d39
RDX: ffff888025b79dc0 RSI: ffffffff81504d46 RDI: 0000000000000001
RBP: 00000000ffffffff R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000009420 R12: ffff888025b7a8d0
R13: ffff888025b7a8f8 R14: ffffc90003cb72a0 R15: dffffc0000000000
FS:  00007f51bee0f6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000280 CR3: 00000000701ba000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 check_irq_usage+0xe4a/0x1490 kernel/locking/lockdep.c:2824
 check_prev_add kernel/locking/lockdep.c:3138 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain kernel/locking/lockdep.c:3869 [inline]
 __lock_acquire+0x248e/0x3b30 kernel/locking/lockdep.c:5137
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 update_cfs_rq_load_avg kernel/sched/fair.c:4582 [inline]
 update_load_avg+0xeec/0x2090 kernel/sched/fair.c:4741
 put_prev_entity+0xc2/0x180 kernel/sched/fair.c:5485
 pick_next_task_fair+0x5c9/0x1210 kernel/sched/fair.c:8462
 __pick_next_task kernel/sched/core.c:6021 [inline]
 pick_next_task kernel/sched/core.c:6111 [inline]
 __schedule+0x4b1/0x5ce0 kernel/sched/core.c:6691
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7047
 irqentry_exit+0x36/0x90 kernel/entry/common.c:348
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x1f2/0x540 kernel/locking/lockdep.c:5722
Code: c1 05 7a ef 96 7e 83 f8 01 0f 85 c8 02 00 00 9c 58 f6 c4 02 0f 85 b3 02 00 00 48 85 ed 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90003cb7990 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000796f34 RCX: 0000000000000001
RDX: 0000000000000001 RSI: ffffffff8aecc000 RDI: ffffffff8b4ead40
RBP: 0000000000000200 R08: 00000000002265c8 R09: fffffbfff278e510
R10: ffffffff93c72887 R11: 1ffffffff265dac4 R12: 0000000000000001
R13: 0000000000000000 R14: ffff888071148d38 R15: 0000000000000000
 __flush_workqueue+0x14b/0x1340 kernel/workqueue.c:3147
 drain_workqueue+0x18f/0x3d0 kernel/workqueue.c:3312
 destroy_workqueue+0xc3/0xb10 kernel/workqueue.c:4801
 ceph_osdc_stop+0x79/0x480 net/ceph/osd_client.c:5320
 ceph_destroy_client+0x6c/0x120 net/ceph/ceph_common.c:767
 destroy_fs_client+0x1e4/0x360 fs/ceph/super.c:899
 deactivate_locked_super+0xbe/0x1a0 fs/super.c:477
 ceph_get_tree+0x14a8/0x1e20 fs/ceph/super.c:1361
 vfs_get_tree+0x8f/0x380 fs/super.c:1784
 vfs_cmd_create+0x11f/0x300 fs/fsopen.c:230
 vfs_fsconfig_locked fs/fsopen.c:294 [inline]
 __do_sys_fsconfig+0x83f/0xb90 fs/fsopen.c:476
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f51bee4e419
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f51bee0f238 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f51beed8328 RCX: 00007f51bee4e419
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003
RBP: 00007f51beed8320 R08: 0000000000000000 R09: 00007f51bee0f6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51beea5074
R13: 0000000000000000 R14: 00007ffed3fdf3c0 R15: 00007ffed3fdf4a8
 </TASK>
----------------
Code disassembly (best guess):
   0:	c1 05 7a ef 96 7e 83 	roll   $0x83,0x7e96ef7a(%rip)        # 0x7e96ef81
   7:	f8                   	clc
   8:	01 0f                	add    %ecx,(%rdi)
   a:	85 c8                	test   %ecx,%eax
   c:	02 00                	add    (%rax),%al
   e:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  15:	85 b3 02 00 00 48    	test   %esi,0x48000002(%rbx)
  1b:	85 ed                	test   %ebp,%ebp
  1d:	74 01                	je     0x20
  1f:	fb                   	sti
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	48 01 c3             	add    %rax,%rbx <-- trapping instruction
  2d:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  34:	48 c7 43 08 00 00 00 	movq   $0x0,0x8(%rbx)
  3b:	00
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24