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WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair.

Status: upstream: reported C repro on 2025/04/12 23:44
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+dea013cf6b40da188751@syzkaller.appspotmail.com
First crash: 50d, last: 50d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/04/13 upstream (ToT) 7cdabafc0012 C [report] WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair.
2025/05/29 upstream (ToT) 90b83efa6701 C Didn't crash
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair. (2) xfs C done 271 30d 54d 0/28 upstream: reported C repro on 2025/04/08 12:49
linux-5.15 WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair. origin:upstream C error 5 35d 50d 0/3 upstream: reported C repro on 2025/04/12 23:28
upstream WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair. xfs C done done 4 518d 712d 0/28 auto-obsoleted due to no activity on 2024/04/09 10:06

Sample crash report:
loop0: detected capacity change from 0 to 32768
XFS (loop0): Mounting V5 Filesystem
XFS (loop0): Ending clean mount
XFS (loop0): WARNING: Reset corrupted AGFL on AG 0. 1 blocks leaked. Please unmount and run xfs_repair.
XFS (loop0): Unmounting Filesystem

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/13 01:09 linux-6.1.y 420102835862 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair.
2025/04/13 00:35 linux-6.1.y 420102835862 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair.
2025/04/12 23:44 linux-6.1.y 420102835862 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair.
* Struck through repros no longer work on HEAD.