March 9, 2026 at 7:24 PM, "Samuel Thibault" <[email protected] mailto:[email protected]?to=%22Samuel%20Thibault%22%20%3Csamuel.thibault%40gnu.org%3E > wrote:
> > Samuel Thibault, le sam. 07 mars 2026 22:39:56 +0100, a ecrit: > > > > > Samuel Thibault, le sam. 07 mars 2026 21:06:38 +0100, a ecrit: > > Samuel Thibault, le lun. 02 mars 2026 01:24:02 +0100, a ecrit: > > > I have gotten yet another odd file corruption in a buildd chroot, after > > > building haskell-xml-html-qq_0.1.0.1-6+b1, /usr/bin/mkdir became: > > > > > > 00000000 00 00 02 ea 01 00 00 00 01 00 00 00 93 2a e0 d7 > > |.............*..| > > > 00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > |................| > > > > Just realizing... These are little-endian values, and 0xea020000 > > is... EXT2_XATTR_BLOCK_MAGIC ! > > > > That's very informative! We must have block allocation issues in our > > xattr code. > > > > I guess the problem is when we happen to drop an xattr before the > > content got flushed to disk, I have a patch that I'll try to check. > > > I have uploaded the patch, it's running on buildds since saturday > evening, and I haven't seen any corruption, so I guess that was really > it, it's the activation of using xattrs by default that was the trigger. > > Samuel Congrats on fixing the error! This bug hunt email exchange was actually really fun to read!
