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WARNING in btrfs_commit_transaction

Status: upstream: reported C repro on 2023/04/17 01:21
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+58e860029d947f85076a@syzkaller.appspotmail.com
First crash: 1098d, last: 10d
Fix commit to backport (bisect log) :
tree: upstream
commit 398646011e3ce53409afda64bc2024d967e83880
Author: Nikolay Borisov <nborisov@suse.com>
Date: Wed Mar 30 09:14:06 2022 +0000

  btrfs: remove checks for arg argument in btrfs_ioctl_balance

  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2023/11/18 linux-5.15.y (ToT) 80529b4968a8 C [report] WARNING in __btrfs_free_extent
2023/11/18 upstream (ToT) 791c8ab095f7 C Didn't crash
▶ ▼ Similar bugs (7)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in btrfs_commit_transaction btrfs -1 C inconclusive done 3 1169d 1263d 22/29 fixed on 2023/02/24 13:50
linux-4.19 WARNING in btrfs_commit_transaction (2) -1 1 1226d 1226d 0/1 auto-obsoleted due to no activity on 2023/04/08 10:50
linux-4.14 WARNING in btrfs_commit_transaction btrfs -1 C 2 1145d 1517d 0/1 upstream: reported C repro on 2022/02/21 07:21
linux-6.1 WARNING in btrfs_commit_transaction origin:upstream -1 C error 21 66d 920d 0/3 upstream: reported C repro on 2023/10/11 08:58
linux-6.6 WARNING in btrfs_commit_transaction -1 13 85d 298d 0/2 upstream: reported on 2025/06/24 18:47
linux-4.19 WARNING in btrfs_commit_transaction -1 1 1839d 1839d 0/1 auto-closed as invalid on 2021/08/03 10:34
upstream WARNING in btrfs_commit_transaction (2) btrfs -1 C done error 1226 54d 1109d 0/29 upstream: reported C repro on 2023/04/06 02:24
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/04/08 15:42 14m retest repro linux-5.15.y report log
2026/03/20 07:53 8m retest repro linux-5.15.y report log
2026/02/27 02:28 22m retest repro linux-5.15.y report log
2026/02/13 00:46 9m retest repro linux-5.15.y report log
2026/02/13 00:46 10m retest repro linux-5.15.y report log
2026/02/13 00:46 11m retest repro linux-5.15.y report log
2026/02/13 00:46 16m retest repro linux-5.15.y report log
2026/02/13 00:46 9m retest repro linux-5.15.y report log
2026/01/29 19:57 10m retest repro linux-5.15.y report log
2026/01/29 19:57 17m retest repro linux-5.15.y report log
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2023/12/22 09:22 5h49m fix candidate upstream OK (1) job log
2023/10/05 19:34 7m fix candidate upstream error job log
2023/09/02 23:25 3m fix candidate upstream error job log

Sample crash report:
BTRFS warning (device loop2): Skipping commit of aborted transaction.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 154 at fs/btrfs/transaction.c:2021 cleanup_transaction fs/btrfs/transaction.c:2021 [inline]
WARNING: CPU: 1 PID: 154 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x260e/0x3570 fs/btrfs/transaction.c:2529
Modules linked in:
CPU: 1 PID: 154 Comm: kworker/u4:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:cleanup_transaction fs/btrfs/transaction.c:2021 [inline]
RIP: 0010:btrfs_commit_transaction+0x260e/0x3570 fs/btrfs/transaction.c:2529
Code: 08 1e 35 fe eb 05 e8 01 1e 35 fe 0f 1f 44 00 00 e8 f7 1d 35 fe eb 15 e8 f0 1d 35 fe 48 c7 c7 80 26 6b 8a 89 de e8 32 76 6d 06 <0f> 0b 4c 89 f7 48 c7 c6 80 28 6b 8a ba e5 07 00 00 89 d9 e8 ba a6
RSP: 0018:ffffc90002017760 EFLAGS: 00010246
RAX: 547b92d5ad23d000 RBX: 00000000ffffffe4 RCX: ffff888017a99dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90002017a50 R08: ffff8880b912795b R09: 1ffff11017224f2b
R10: dffffc0000000000 R11: ffffed1017224f2c R12: ffff888017a9b038
R13: dffffc0000000000 R14: ffff8880700c9e70 R15: ffff8880700c9ec8
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd8d2880b8 CR3: 000000005bfa5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 flush_space+0x936/0xc70 fs/btrfs/space-info.c:694
 btrfs_async_reclaim_metadata_space+0x26f/0x330 fs/btrfs/space-info.c:953
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (82):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/25 03:56 linux-5.15.y 91d48252ad4b 74e70d19 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/02/26 07:21 linux-5.15.y c16c81c81336 d34966d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2024/01/22 05:06 linux-5.15.y ddcaf4999061 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2023/11/18 02:33 linux-5.15.y 80529b4968a8 cb976f63 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2023/08/23 20:45 linux-5.15.y f6f7927ac664 b81ca3f6 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2023/07/16 23:42 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2023/07/16 15:40 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/07/27 00:06 linux-5.15.y c79648372d02 fb8f743d .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/05/25 02:32 linux-5.15.y 83655231580b a10a183e .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2023/08/14 06:23 linux-5.15.y 24c4de4069cb 39990d51 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2023/08/13 06:59 linux-5.15.y 24c4de4069cb 39990d51 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2023/07/03 09:29 linux-5.15.y 4af60700a60c bfc47836 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2023/06/12 12:00 linux-5.15.y 7349e40704a0 49519f06 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2026/01/15 17:42 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/12/24 07:06 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/11/17 16:44 linux-5.15.y cc5ec8769306 ef766cd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/10/26 17:53 linux-5.15.y ac56c046adf4 c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/09/28 08:52 linux-5.15.y 43bb85222e53 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/03/14 02:07 linux-5.15.y 0c935c049b5c e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/03/13 15:23 linux-5.15.y 0c935c049b5c 44be8b44 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/03/12 02:49 linux-5.15.y c16c81c81336 ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/03/10 17:10 linux-5.15.y c16c81c81336 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/03/04 18:15 linux-5.15.y c16c81c81336 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/03/01 12:34 linux-5.15.y c16c81c81336 67cf5345 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/02/17 11:28 linux-5.15.y c16c81c81336 4121cf9d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/01/02 17:56 linux-5.15.y 91786f140358 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2024/11/10 04:34 linux-5.15.y 3c17fc483905 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2024/09/01 03:41 linux-5.15.y fa93fa65db6e 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2024/08/20 21:00 linux-5.15.y fa93fa65db6e 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2024/08/10 11:39 linux-5.15.y 7e89efd3ae1c 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in btrfs_commit_transaction
2025/07/23 21:54 linux-5.15.y c79648372d02 e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/07/10 19:49 linux-5.15.y 2f693b607545 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/05/05 13:21 linux-5.15.y 16fdf2c7111b 6ca47dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/05/04 04:41 linux-5.15.y 16fdf2c7111b b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/05/03 09:16 linux-5.15.y 16fdf2c7111b b0714e37 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/05/02 07:55 linux-5.15.y 16fdf2c7111b 51b137cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/30 22:02 linux-5.15.y f7347f400572 ce7952f4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/29 19:15 linux-5.15.y f7347f400572 85a5a23f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/29 12:07 linux-5.15.y f7347f400572 aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/26 06:15 linux-5.15.y f7347f400572 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/25 18:41 linux-5.15.y f7347f400572 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/25 05:14 linux-5.15.y f7347f400572 e3715315 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/04/14 23:32 linux-5.15.y f7347f400572 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/02/13 15:30 linux-5.15.y c16c81c81336 a98a8417 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/02/11 08:59 linux-5.15.y c16c81c81336 43f51a00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/01/26 00:01 linux-5.15.y 003148680b79 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2025/01/19 06:28 linux-5.15.y 4735586da88e f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/22 06:23 linux-5.15.y fa93fa65db6e ca02180f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/21 13:35 linux-5.15.y fa93fa65db6e db5852f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/20 23:53 linux-5.15.y fa93fa65db6e 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/20 10:25 linux-5.15.y fa93fa65db6e 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/16 13:29 linux-5.15.y 7e89efd3ae1c e1c76ab2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/14 17:20 linux-5.15.y 7e89efd3ae1c e6b88e20 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/14 02:23 linux-5.15.y 7e89efd3ae1c bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/08/12 17:28 linux-5.15.y 7e89efd3ae1c 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/05/25 19:57 linux-5.15.y c61bd26ae81a a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2024/05/25 01:30 linux-5.15.y 83655231580b a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
2023/04/17 01:21 linux-5.15.y 4fdad925aa1a ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in btrfs_commit_transaction
* Struck through repros no longer work on HEAD.