On Wed 24-10-07 15:33:08, Andy Whitcroft wrote:
> On Wed, Oct 24, 2007 at 03:59:00PM +0200, Jan Kara wrote:
> > Hello,
> >
> > On Wed 24-10-07 14:15:40, Andy Whitcroft wrote:
> > > Seems that we are now getting strange errors mounting an ext2 root
> > > filesystem under 2.6.23-git18:
> > >
> > > EXT2-fs error (device sda1): ext2_check_page: bad entry in directory #2:
> > > rec_len is smaller than minimal - offset=0, inode=0, rec_len=0,
> > > name_len=0
> > Hmm, zero length entry in a root directory. Not nice.
> >
> > > This seems to be occuring consistently since 2.6.23-git18. I have been
> > > back and rerun a -git17 job to confirm its not visible at that level.
> > > This bug is expressing itself in 2.6.23-rc1 also.
> > >
> > > I am suspicious of this commit in the -git17 -> -git18 block:
> > >
> > > commit 89910cccb8fec0c1140d33a743e72a712efd4f05
> > > Author: Jan Kara <[email protected]>
> > > Date: Sun Oct 21 16:41:40 2007 -0700
> > >
> > > ext2: avoid rec_len overflow with 64KB block size
> > >
> > > /me goes debug this a bit more.
> > Hmm, I'd suspect that too ;) But I swear I actually tested the code ;)
> > So what are you using the filesystem for (or do you get the error
> > immediately when mounting)? How large is the filesystem?
>
> Its the root filesystem, so thats all she wrote. The kernel fails to
> mount it and the world ends. Its pretty small in now world terms.
>
> /dev/sda1 17G 10G 6.0G 63% /
OK, could you send me the metadata from the filesystem?
e2image -r /dev/sda1 - | gzip -dc root-image.gz
Thanks.
Honza
--
Jan Kara <[email protected]>
SUSE Labs, CR
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