lkml.org 
[lkml]   [2003]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Device-backed loop broken in 2.6.0-test2?
From
Date
On Wed, 06 Aug 2003 17:40:43 PDT, Andrew Morton said:

> We're currently setting PF_READAHEAD across a call into the page allocator.
> We end up calling writepage() with PF_READAHEAD set and the block layer
> aborts the writes, resulting in corrupted data.
>
> It only seems to bite with loop-on-blockdev for some reason.

For what it's worth, I've been seeing these same symptoms on ext3 on an LVM
partition - so it's not *just* loop, it appears to be any filesystem that interposes
a mapping layer. Hmm.. wonder if this explains the failures on RAID that somebody
was reporting, too....

/Valdis (who is off to apply the patch that Andrew attached, which doesn't appear to
be in -mm5)...

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 13:47    [W:0.084 / U:1.808 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site