Re: XFS filesystem corruption on the arm(el) architecture

[Martin Michlmayr <tbm@xxxxxxxxxx>]

* Eric Sandeen <sandeen@xxxxxxxxxxx> [2008-10-16 17:13]:
> So is this a regression?  did it used to work?  If so, when? :)

The original report was with 2.6.18 but that was with the old ABI:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=423562
I just installed a 2.6.22 kernel with EABI and I can also trigger
the bug.  So it's not a (recent) regression.

> What's a little odd is that the buffer it dumped out looks like the
> beginning of a perfectly valid superblock for your filesystem
> (magic, block size, and block count all match).   If you printk the
> "bno" variable right around line 2106 in xfs_da_btree.c, can you see
> what you get?

bno is 0.

> creating an xfs_metadump of the filesystem for examination on a
> non-arm box might also be interesting.

http://www.cyrius.com/tmp/dump5
(11 MB)
-- 
Martin Michlmayr
http://www.cyrius.com/