WARNING in mark_buffer_dirty (2)

Status: auto-closed as invalid on 2020/07/14 01:44
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+60da3d6a696457b98553@syzkaller.appspotmail.com
First crash: 2447d, last: 2310d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
WARNING in mark_buffer_dirty (2) 0 (1) 2019/12/04 06:39
▶ ▼ Similar bugs (14)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in mark_buffer_dirty bfs -1 syz, C error 10 1318d 1664d 0/1 upstream: reported C repro on 2022/01/20 22:23
upstream WARNING in mark_buffer_dirty (6) fs -1 syz, C error 11669 462d 1029d 28/29 fixed on 2025/05/06 15:33
upstream WARNING in mark_buffer_dirty (4) bfs nilfs -1 syz, C inconclusive 1152 1160d 1499d 22/29 fixed on 2023/06/08 14:41
android-44 WARNING in mark_buffer_dirty -1 2 2778d 2676d 0/2 auto-closed as invalid on 2019/07/01 11:44
upstream WARNING in mark_buffer_dirty fs -1 syz, C 21 2808d 3190d 0/29 closed as invalid on 2019/07/24 04:22
linux-4.14 WARNING in mark_buffer_dirty (2) nilfs2 -1 syz, C error 8 1260d 1643d 0/1 upstream: reported C repro on 2022/02/10 08:17
linux-6.6 WARNING in mark_buffer_dirty origin:lts-only -1 syz, C inconclusive 383 144d 395d 0/2 upstream: reported C repro on 2025/07/12 17:25
upstream WARNING in mark_buffer_dirty (5) nilfs -1 syz, C done 172 1037d 1156d 23/29 fixed on 2023/10/12 12:48
upstream WARNING in mark_buffer_dirty (7) prio:low bfs -1 syz, C error error 1012 139d 458d 0/29 upstream: reported C repro on 2025/05/10 17:11
upstream WARNING in mark_buffer_dirty (3) ext4 -1 2 1991d 2004d 0/29 auto-closed as invalid on 2021/06/27 09:01
android-49 WARNING in mark_buffer_dirty -1 7 2624d 2676d 0/3 auto-closed as invalid on 2019/10/25 08:47
linux-4.14 WARNING in mark_buffer_dirty -1 1 2403d 2403d 0/1 auto-closed as invalid on 2020/05/11 07:45
linux-5.15 WARNING in mark_buffer_dirty origin:upstream -1 syz, C error 301 141d 1245d 0/3 upstream: reported C repro on 2023/03/15 22:22
linux-6.1 WARNING in mark_buffer_dirty origin:lts-only -1 syz, C inconclusive 376 146d 1247d 0/3 upstream: reported C repro on 2023/03/13 14:09

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 315 at fs/buffer.c:1128 mark_buffer_dirty+0x4fa/0x690 fs/buffer.c:1128
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 315 Comm: kworker/u17:4 Not tainted 5.6.0-rc7-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:mark_buffer_dirty+0x4fa/0x690 fs/buffer.c:1128
Code: 03 80 3c 02 00 0f 85 99 01 00 00 48 8b 3b be 04 00 00 00 e8 08 e5 fc ff 5b 5d 41 5c 41 5d 41 5e e9 2b c9 a9 ff e8 26 c9 a9 ff <0f> 0b e9 4f fb ff ff e8 1a c9 a9 ff 0f 0b e9 73 fb ff ff e8 0e c9
RSP: 0018:ffffc90001297010 EFLAGS: 00010293
RAX: ffff88802a025240 RBX: ffff8880764a45e8 RCX: ffffffff81c85747
RDX: 0000000000000000 RSI: ffffffff81c85bfa RDI: 0000000000000001
RBP: 0000000000000000 R08: ffff88802a025240 R09: ffffed100ec948be
R10: ffffed100ec948bd R11: ffff8880764a45ef R12: 0000000000000000
R13: 0000000000000000 R14: ffff888028f1cd80 R15: ffff88801d944f3c
 __ext4_handle_dirty_metadata+0x41d/0x7a0 fs/ext4/ext4_jbd2.c:338
 ext4_mb_mark_diskspace_used+0x943/0x10e0 fs/ext4/mballoc.c:3048
 ext4_mb_new_blocks+0xb25/0x3930 fs/ext4/mballoc.c:4579
 ext4_ext_map_blocks+0x221c/0x37d0 fs/ext4/extents.c:4440
 ext4_map_blocks+0x4cb/0x1650 fs/ext4/inode.c:622
 mpage_map_one_extent fs/ext4/inode.c:2365 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2418 [inline]
 ext4_writepages+0x19eb/0x3080 fs/ext4/inode.c:2772
 do_writepages+0xfa/0x2a0 mm/page-writeback.c:2344
 __writeback_single_inode+0x12a/0x1410 fs/fs-writeback.c:1452
 writeback_sb_inodes+0x515/0xdd0 fs/fs-writeback.c:1716
 __writeback_inodes_wb+0xc3/0x250 fs/fs-writeback.c:1785
 wb_writeback+0x910/0xd90 fs/fs-writeback.c:1894
 wb_check_background_flush fs/fs-writeback.c:1962 [inline]
 wb_do_writeback fs/fs-writeback.c:2050 [inline]
 wb_workfn+0xa49/0x11c0 fs/fs-writeback.c:2078
 process_one_work+0x94b/0x1690 kernel/workqueue.c:2266
 worker_thread+0x96/0xe20 kernel/workqueue.c:2412
 kthread+0x357/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (665):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/03/27 10:31 upstream 9efcc4a12936 7d95711b .config console log report ci-qemu-upstream
2020/03/27 01:27 upstream 9efcc4a12936 6d25c5a0 .config console log report ci-qemu-upstream
2020/03/22 05:03 upstream c63c50fc2ec9 78267cec .config console log report ci-qemu-upstream
2020/03/21 16:26 upstream 5ad0ec0b8652 aa6c6a55 .config console log report ci-qemu-upstream
2020/03/18 12:55 upstream ac309e7744be 0a96a13c .config console log report ci-qemu-upstream
2020/03/18 00:33 upstream ac309e7744be 97bc55ce .config console log report ci-qemu-upstream
2020/03/16 07:10 upstream a42a7bb6f536 749688d2 .config console log report ci-qemu-upstream
2020/03/16 05:10 upstream a42a7bb6f536 749688d2 .config console log report ci-qemu-upstream
2020/03/13 12:49 upstream 0d81a3f29c0a fd69032d .config console log report ci-qemu-upstream
2019/11/29 23:45 upstream 81b6b96475ac 3a75be00 .config console log report ci-qemu-upstream
2020/04/15 01:40 upstream ffc1c20c46f7 831e9a81 .config console log report ci-qemu-upstream-386
2020/04/01 23:15 upstream ffc1c20c46f7 831e9a81 .config console log report ci-qemu-upstream-386
2020/03/27 10:16 upstream 9efcc4a12936 7d95711b .config console log report ci-qemu-upstream-386
2020/03/27 07:26 upstream 9efcc4a12936 7d95711b .config console log report ci-qemu-upstream-386
2020/03/26 23:11 upstream 1b649e0bcae7 6d25c5a0 .config console log report ci-qemu-upstream-386
2020/03/26 08:22 upstream e2cf67f6689a 78267cec .config console log report ci-qemu-upstream-386
2020/03/21 13:55 upstream 5ad0ec0b8652 aa6c6a55 .config console log report ci-qemu-upstream-386
2020/03/21 12:00 upstream 5ad0ec0b8652 aa6c6a55 .config console log report ci-qemu-upstream-386
2020/03/21 09:31 upstream 5ad0ec0b8652 aa6c6a55 .config console log report ci-qemu-upstream-386
2020/03/21 02:04 upstream 5ad0ec0b8652 2c31c529 .config console log report ci-qemu-upstream-386
2020/03/20 19:06 upstream 6c90b86a745a 2c31c529 .config console log report ci-qemu-upstream-386
2020/03/20 14:48 upstream 6c90b86a745a 2c31c529 .config console log report ci-qemu-upstream-386
2020/03/20 06:25 upstream cd607737f3b8 2c31c529 .config console log report ci-qemu-upstream-386
2020/03/20 04:47 upstream cd607737f3b8 2c31c529 .config console log report ci-qemu-upstream-386
2020/03/19 03:44 upstream 5076190daded 2c31c529 .config console log report ci-qemu-upstream-386
2020/03/17 21:09 upstream ac309e7744be 97bc55ce .config console log report ci-qemu-upstream-386
2020/03/17 17:11 upstream fb33c6510d55 749688d2 .config console log report ci-qemu-upstream-386
2020/03/17 08:59 upstream fb33c6510d55 749688d2 .config console log report ci-qemu-upstream-386
2020/03/17 05:44 upstream fb33c6510d55 749688d2 .config console log report ci-qemu-upstream-386
2020/03/16 16:45 upstream fb33c6510d55 749688d2 .config console log report ci-qemu-upstream-386
2020/03/15 22:52 upstream a42a7bb6f536 749688d2 .config console log report ci-qemu-upstream-386
2020/03/15 16:31 upstream d3dca69085e9 749688d2 .config console log report ci-qemu-upstream-386
2020/03/15 12:26 upstream d3dca69085e9 749688d2 .config console log report ci-qemu-upstream-386
2020/03/15 09:15 upstream d3dca69085e9 749688d2 .config console log report ci-qemu-upstream-386
2020/03/12 16:15 upstream e6e6ec48dd0f d850e9d0 .config console log report ci-qemu-upstream-386
2020/03/05 19:03 upstream 776e49e8ddb5 b655d91b .config console log report ci-qemu-upstream-386
2020/03/05 15:08 upstream 776e49e8ddb5 b655d91b .config console log report ci-qemu-upstream-386
2020/03/05 07:40 upstream 776e49e8ddb5 576fb9bc .config console log report ci-qemu-upstream-386
2020/03/04 21:00 upstream 8b614cb8f1dc 712198ac .config console log report ci-qemu-upstream-386
2020/03/04 06:04 upstream d2eee25858f2 2c36e7a7 .config console log report ci-qemu-upstream-386
2020/02/23 11:32 upstream dca132a60f22 2c36e7a7 .config console log report ci-qemu-upstream-386
2020/02/23 00:20 upstream 0a115e5f23b9 2c36e7a7 .config console log report ci-qemu-upstream-386
2020/02/22 14:34 upstream 54dedb5b571d 2c36e7a7 .config console log report ci-qemu-upstream-386
2020/02/19 10:06 upstream 2b72104b8c12 135c18aa .config console log report ci-qemu-upstream-386
2020/02/19 07:43 upstream 2b72104b8c12 135c18aa .config console log report ci-qemu-upstream-386
* Struck through repros no longer work on HEAD.