From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: Corruption of root fs during git bisect of drm system hang
Date: Thu, 11 Jul 2013 06:15:00 +0200 [thread overview]
Message-ID: <20130711041500.GD362@x4> (raw)
In-Reply-To: <20130711035827.GA3438@dastard>
On 2013.07.11 at 13:58 +1000, Dave Chinner wrote:
> On Thu, Jul 11, 2013 at 05:36:21AM +0200, Markus Trippelsdorf wrote:
> > On 2013.07.11 at 10:31 +1000, Dave Chinner wrote:
> > > On Wed, Jul 10, 2013 at 11:06:34AM +0200, Markus Trippelsdorf wrote:
> > > > While bisecting a system hang, caused by the drm gpu subsystem, my root fs got
> > > > corrupted:
> > >
> > > That's a filesystem that has unlinked inodes on the unlinked list.
> > > They get cleaned up during log replay. All the other "errors" are
> > > related to cleaning these up....
> > >
> > > So what is making you think there is a corruption? What's the error
> > > being reported when you are using the filesystem? i.e. what's the
> > > entire process you go through before you get to finding this
> > > problem?
> >
> > I was loosing my KDE settings bit by bit with every reboot during the
> > bisection. First my window-rules disappeared, then my desktop background
> > changed to default, then my taskbar moved from top to the bottom, etc.
> > In the end I had to restore all my .files from backup.
>
> That's not filesystem corruption. That sounds more like someone not
> using fsync in the apropriate place when overwriting a file....
Ok. Sorry for using the wrong term.
> > And please note that xfs_repair unlinked the inodes _after_ the
> > filesystem has been mounted and unmounted normally.
>
> Which means we might not be processing the unlinked lists correctly
> and leaking them. If repair is finding the inodes in the AGI
> unlinked lists, then recovery should be finding them, too. Not
> processing them and not clearing the AGI bucket tends to imply that
> recovery failed to read the AGI buffer.
>
> What error messages are in dmesg, if any? And what kernel are you
> running?
There are no error messages in dmesg. I'm running the latest Linus tree.
--
Markus
_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs
next prev parent reply other threads:[~2013-07-11 4:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-10 9:06 Corruption of root fs during git bisect of drm system hang Markus Trippelsdorf
2013-07-11 0:31 ` Dave Chinner
2013-07-11 3:36 ` Markus Trippelsdorf
2013-07-11 3:58 ` Dave Chinner
2013-07-11 4:12 ` Stan Hoeppner
2013-07-11 9:07 ` Markus Trippelsdorf
2013-07-11 11:28 ` Markus Trippelsdorf
2013-07-11 20:24 ` Stan Hoeppner
2013-07-11 20:40 ` Markus Trippelsdorf
2013-07-11 23:01 ` Stan Hoeppner
2013-07-12 2:38 ` Dave Chinner
2013-07-12 2:17 ` Dave Chinner
2013-07-12 7:07 ` Markus Trippelsdorf
2013-07-13 9:05 ` Markus Trippelsdorf
2013-07-15 2:28 ` Dave Chinner
2013-07-15 6:47 ` Markus Trippelsdorf
2013-07-19 12:22 ` [Bisected] " Markus Trippelsdorf
2013-07-19 12:41 ` Stefan Ring
2013-07-19 12:51 ` Markus Trippelsdorf
2013-07-19 16:02 ` Eric Sandeen
2013-07-19 16:32 ` Markus Trippelsdorf
2013-07-19 19:13 ` Ben Myers
2013-07-19 19:56 ` Markus Trippelsdorf
2013-07-19 20:28 ` Markus Trippelsdorf
2013-07-19 19:23 ` Eric Sandeen
2013-07-19 19:53 ` Markus Trippelsdorf
2013-07-19 21:11 ` Mark Tinguely
2013-07-20 3:18 ` Dave Chinner
2013-07-20 17:21 ` Mark Tinguely
2013-07-21 7:37 ` Dave Chinner
2013-07-20 1:48 ` Dave Chinner
2013-07-22 10:22 ` Dave Chinner
2013-07-22 10:47 ` Markus Trippelsdorf
2013-07-22 22:54 ` Dave Chinner
2013-07-11 4:15 ` Markus Trippelsdorf [this message]
2013-07-11 0:37 ` Stan Hoeppner
2013-07-11 3:47 ` Markus Trippelsdorf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130711041500.GD362@x4 \
--to=markus@trippelsdorf.de \
--cc=david@fromorbit.com \
--cc=xfs@oss.sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox