Re: EXT4 corruption on Linus latest tree.

From: Dave Jones
Date: Wed Feb 27 2013 - 11:05:13 EST


On Wed, Feb 27, 2013 at 04:55:39PM +0100, Borislav Petkov wrote:
> On Wed, Feb 27, 2013 at 10:43:11AM -0500, Dave Jones wrote:
> > Built from a pull around midnight EST last night.
> > (Don't have the git hash, as the source is on the disk that is now inaccessable..)
> >
> > EXT4-fs error (device sdb1): htree_dirblock_to_tree:919: inode #172235804: block 152052301: comm ls: bad entry in directory: rec_len is smaller than minimal - offset=0(0), inode=0, rec_len=0, name_len=0
> > EXT4-fs error (device sdb1): htree_dirblock_to_tree:919: inode #172235804: block 152052301: comm ls: bad entry in directory: rec_len is smaller than minimal - offset=0(0), inode=0, rec_len=0, name_len=0
> > EXT4-fs error (device sdb1): htree_dirblock_to_tree:919: inode #172235804: block 152052301: comm ls: bad entry in directory: rec_len is smaller than minimal - offset=0(0), inode=0, rec_len=0, name_len=0
> > EXT4-fs error (device sdb1): htree_dirblock_to_tree:919: inode #172235381: block 152052288: comm ls: bad entry in directory: rec_len is smaller than minimal - offset=0(0), inode=0, rec_len=0, name_len=0
> > EXT4-fs error (device sdb1): htree_dirblock_to_tree:919: inode #172228609: block 152051744: comm ls: bad entry in directory: rec_len is smaller than minimal - offset=0(0), inode=0, rec_len=0, name_len=0
> >
> > This is a 3TB disk which has 1.9TB used.
> >
> > I can see some files/dirs, but some top level dirs now appear empty.
> >
> > About to reboot back to a safe kernel and fsck.
>
> Hmm, more people triggering something like that:
> http://marc.info/?l=linux-kernel&m=136196926015305&w=2

Yeah, looks similar. The missing files/dirs reappeared when I
booted an older kernel, so it looks like the corruption doesn't
hit the disk. Fsck (1.42.5) didn't find anything either.

Dave
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