syzbot


WARNING: locking bug in xfs_inode_mark_reclaimable

Status: upstream: reported on 2024/05/30 15:51
Subsystems: xfs
[Documentation on labels]
Reported-by: syzbot+07620ae683e780f6a943@syzkaller.appspotmail.com
First crash: 26d, last: 11d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [xfs?] WARNING: locking bug in xfs_inode_mark_reclaimable 0 (1) 2024/05/30 15:51

Sample crash report:
WARNING: CPU: 0 PID: 5232 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 0 PID: 5232 at kernel/locking/lockdep.c:232 hlock_class+0xfa/0x130 kernel/locking/lockdep.c:221
Modules linked in:
CPU: 0 PID: 5232 Comm: syz-executor.0 Not tainted 6.10.0-rc3-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:hlock_class+0xfa/0x130 kernel/locking/lockdep.c:221
Code: b6 14 11 38 d0 7c 04 84 d2 75 43 8b 05 93 2f 77 0e 85 c0 75 19 90 48 c7 c6 60 be 2c 8b 48 c7 c7 00 b9 2c 8b e8 97 47 e5 ff 90 <0f> 0b 90 90 90 31 c0 eb 9e e8 08 f9 7f 00 e9 1c ff ff ff 48 c7 c7
RSP: 0018:ffffc90003547918 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 000000000000125e RCX: ffffffff81511289
RDX: ffff88801ce3a440 RSI: ffffffff81511296 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000002d2d2d2d R12: 0000000000000000
R13: 0000000000000000 R14: ffff88801ce3af70 R15: 000000000000125e
FS:  0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:0000000057886400
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020004000 CR3: 0000000046d16000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 check_wait_context kernel/locking/lockdep.c:4773 [inline]
 __lock_acquire+0x3f2/0x3b30 kernel/locking/lockdep.c:5087
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
 touch_work_lockdep_map kernel/workqueue.c:3894 [inline]
 start_flush_work kernel/workqueue.c:4148 [inline]
 __flush_work+0x477/0xc60 kernel/workqueue.c:4181
 xfs_inodegc_queue fs/xfs/xfs_icache.c:2119 [inline]
 xfs_inode_mark_reclaimable+0x6e8/0xf60 fs/xfs/xfs_icache.c:2149
 destroy_inode+0xc4/0x1b0 fs/inode.c:311
 iput_final fs/inode.c:1741 [inline]
 iput.part.0+0x5a8/0x7f0 fs/inode.c:1767
 iput+0x5c/0x80 fs/inode.c:1757
 do_unlinkat+0x613/0x750 fs/namei.c:4414
 __do_sys_unlink fs/namei.c:4455 [inline]
 __se_sys_unlink fs/namei.c:4453 [inline]
 __ia32_sys_unlink+0xc6/0x110 fs/namei.c:4453
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf733f579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000ff90f56c EFLAGS: 00000296 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00000000ff90f610 RCX: 0000000000008000
RDX: 00000000f7495ff4 RSI: 0000000000000000 RDI: 00000000ff9106b0
RBP: 00000000ff90f610 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/10 07:19 upstream 83a7eefedc9b c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING: locking bug in xfs_inode_mark_reclaimable
2024/06/04 02:02 upstream f06ce441457d c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING: locking bug in xfs_inode_mark_reclaimable
2024/05/26 15:50 upstream c13320499ba0 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING: locking bug in xfs_inode_mark_reclaimable
* Struck through repros no longer work on HEAD.