gfs2: fsid=syz:syz.0: first mount done, others may mount gfs2: fsid=syz:syz.0: can't create logd thread: -4 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 5402 at kernel/locking/lockdep.c:231 hlock_class kernel/locking/lockdep.c:231 [inline] WARNING: CPU: 0 PID: 5402 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4772 [inline] WARNING: CPU: 0 PID: 5402 at kernel/locking/lockdep.c:231 __lock_acquire+0x58c/0x2040 kernel/locking/lockdep.c:5092 Modules linked in: CPU: 0 UID: 0 PID: 5402 Comm: syz.0.21 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #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:231 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4772 [inline] RIP: 0010:__lock_acquire+0x58c/0x2040 kernel/locking/lockdep.c:5092 Code: 00 00 83 3d 85 d0 a8 0e 00 75 23 90 48 c7 c7 00 d4 0a 8c 48 c7 c6 a0 d6 0a 8c e8 7f d8 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:ffffc90002c9f4d0 EFLAGS: 00010046 RAX: 1d1dd8a389d63300 RBX: 000000000000093c RCX: ffff888000e8a440 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000005 R08: ffffffff8155b372 R09: 1ffff11003fc519a R10: dffffc0000000000 R11: ffffed1003fc519b R12: ffff888000e8a440 R13: 000000000000093c R14: 1ffff110001d15ed R15: ffff888000e8af68 FS: 000055558251d500(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3bfc34d000 CR3: 000000005960e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 touch_wq_lockdep_map kernel/workqueue.c:3879 [inline] __flush_workqueue+0x1c9/0x1710 kernel/workqueue.c:3921 drain_workqueue+0xc9/0x3a0 kernel/workqueue.c:4085 destroy_workqueue+0xba/0xc40 kernel/workqueue.c:5789 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:3472 do_mount fs/namespace.c:3812 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997 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: 0033:0x7ff96db7f69a 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:00007ffe7633d4a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffe7633d530 RCX: 00007ff96db7f69a RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffe7633d4f0 RBP: 0000000020037f40 R08: 00007ffe7633d530 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020037f80 R13: 00007ffe7633d4f0 R14: 0000000000037f14 R15: 0000000020037fc0