gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: can't create quotad thread: -4 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 5407 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline] WARNING: CPU: 0 PID: 5407 at kernel/locking/lockdep.c:232 check_wait_context kernel/locking/lockdep.c:4823 [inline] WARNING: CPU: 0 PID: 5407 at kernel/locking/lockdep.c:232 __lock_acquire+0x58c/0x2050 kernel/locking/lockdep.c:5149 Modules linked in: CPU: 0 UID: 0 PID: 5407 Comm: syz.0.21 Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4823 [inline] RIP: 0010:__lock_acquire+0x58c/0x2050 kernel/locking/lockdep.c:5149 Code: 00 00 83 3d 45 57 ac 0e 00 75 23 90 48 c7 c7 60 d6 0a 8c 48 c7 c6 00 d9 0a 8c e8 ef 87 e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f RSP: 0018:ffffc90002b0f490 EFLAGS: 00010046 RAX: acee8471b3e23d00 RBX: 000000000000092e RCX: ffff88801ee94880 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000005 R08: ffffffff8155c052 R09: 1ffff11003fc519a R10: dffffc0000000000 R11: ffffed1003fc519b R12: ffff88801ee94880 R13: 000000000000092e R14: 1ffff11003dd2a75 R15: ffff88801ee953a8 FS: 000055556ac19500(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff3dea1d000 CR3: 0000000058690000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 touch_wq_lockdep_map+0xc7/0x170 kernel/workqueue.c:3880 __flush_workqueue+0x14f/0x1600 kernel/workqueue.c:3922 drain_workqueue+0xc9/0x3a0 kernel/workqueue.c:4086 destroy_workqueue+0xba/0xc40 kernel/workqueue.c:5830 gfs2_fill_super+0x128a/0x2500 fs/gfs2/ops_fstype.c:1310 get_tree_bdev+0x3f7/0x570 fs/super.c:1635 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd54e37f69a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdbc2c8778 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffdbc2c8800 RCX: 00007fd54e37f69a RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffdbc2c87c0 RBP: 0000000020037f40 R08: 00007ffdbc2c8800 R09: 0000000002000008 R10: 0000000002000008 R11: 0000000000000246 R12: 0000000020037f80 R13: 00007ffdbc2c87c0 R14: 0000000000037f14 R15: 0000000020000040