syzbot

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err = 556
WARNING: lib/errseq.c:76 at errseq_set+0xe4/0x110 lib/errseq.c:75, CPU#0: syz.6.1953/14593
Modules linked in:
CPU: 0 UID: 0 PID: 14593 Comm: syz.6.1953 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:errseq_set+0xe6/0x110 lib/errseq.c:75
Code: 16 fd 44 89 e5 89 e8 5b 41 5c 41 5e 41 5f 5d e9 fb 4c 61 fc cc e8 ca ac 16 fd eb e9 e8 c3 ac 16 fd 48 8d 3d 6c 66 6d 0b 89 de <67> 48 0f b9 3a eb d4 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 35 ff
RSP: 0018:ffffc90003e37720 EFLAGS: 00010287
RAX: ffffffff84aef41d RBX: 000000000000022c RCX: 0000000000080000
RDX: ffffc90005a74000 RSI: 000000000000022c RDI: ffffffff901c5a90
RBP: 0000000000000000 R08: ffffc90003e37707 R09: 1ffff920007c6ee0
R10: dffffc0000000000 R11: fffff520007c6ee1 R12: ffffea00011120c0
R13: ffff88804ea21318 R14: ffff88804ea21448 R15: 000000000000022c
FS:  00007f7a55e166c0(0000) GS:ffff888125460000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f700fa3e000 CR3: 0000000028967000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __filemap_set_wb_err+0x24/0x210 mm/filemap.c:703
 mapping_set_error include/linux/pagemap.h:245 [inline]
 ntfs_resident_writepage fs/ntfs3/inode.c:1060 [inline]
 ntfs_writepages+0x3dd/0x5e0 fs/ntfs3/inode.c:1087
 do_writepages+0x32e/0x550 mm/page-writeback.c:2554
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 file_write_and_wait_range+0x36e/0x440 mm/filemap.c:786
 ntfs_file_fsync+0xf9/0x250 fs/ntfs3/file.c:1497
 generic_write_sync+0x1b3/0x290 include/linux/fs.h:2640
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:688
 ksys_write+0x150/0x270 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7a54f9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7a55e16028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7a55215fa0 RCX: 00007f7a54f9c799
RDX: 0000000000000007 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007f7a55032c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7a55216038 R14: 00007f7a55215fa0 R15: 00007ffc54fae338
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	fd                   	std
   1:	44 89 e5             	mov    %r12d,%ebp
   4:	89 e8                	mov    %ebp,%eax
   6:	5b                   	pop    %rbx
   7:	41 5c                	pop    %r12
   9:	41 5e                	pop    %r14
   b:	41 5f                	pop    %r15
   d:	5d                   	pop    %rbp
   e:	e9 fb 4c 61 fc       	jmp    0xfc614d0e
  13:	cc                   	int3
  14:	e8 ca ac 16 fd       	call   0xfd16ace3
  19:	eb e9                	jmp    0x4
  1b:	e8 c3 ac 16 fd       	call   0xfd16ace3
  20:	48 8d 3d 6c 66 6d 0b 	lea    0xb6d666c(%rip),%rdi        # 0xb6d6693
  27:	89 de                	mov    %ebx,%esi
* 29:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2e:	eb d4                	jmp    0x4
  30:	44 89 f1             	mov    %r14d,%ecx
  33:	80 e1 07             	and    $0x7,%cl
  36:	80 c1 03             	add    $0x3,%cl
  39:	38 c1                	cmp    %al,%cl
  3b:	0f                   	.byte 0xf
  3c:	8c                   	.byte 0x8c
  3d:	35                   	.byte 0x35
  3e:	ff                   	.byte 0xff