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SubjectRe: btrfs io errors on 3.4rc1
On Mon, Apr 02, 2012 at 05:40:51PM -0400, Dave Jones wrote:
> On Mon, Apr 02, 2012 at 05:26:08PM -0400, Chris Mason wrote:
> > On Mon, Apr 02, 2012 at 05:16:22PM -0400, Dave Jones wrote:
> > > On Mon, Apr 02, 2012 at 03:48:14PM -0400, Chris Mason wrote:
> > > > On Mon, Apr 02, 2012 at 02:02:14PM -0400, Dave Jones wrote:
> > > > > Updated to rc1 this morning, and my machines with btrfs are all freaking out..
> > > > >
> > > > > I got this from my cron email ..
> > > > >
> > > > > /etc/cron.daily/prelink: line 41: /var/lib/prelink/full: Input/output error
> > > > > cp: cannot create regular file `/var/lib/prelink/quick': Input/output error
> > > > > /etc/cron.daily/prelink: line 45: /var/log/prelink/prelink.log: Input/output error
> > > >
> > > > That's not good. Can you please try my for-linus branch against 3.3?
> > > > That will rules out all the shiny new btrfs code.
> > > >
> > > > git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git for-linus
> > > >
> > > > -chris
> > >
> > > Broken.
> > >
> > > (17:14:52:davej@dhcp-189-232:~)$ fsx foo
> > > truncating to largest ever: 0x13e76
> > > truncating to largest ever: 0x2e52c
> > > ftruncate1: 2e52c
> > > dotruncate: ftruncate: Input/output error
> > > Segmentation fault (core dumped)
> >
> > Huh. x86-32 or x86-64? I know you said there were no interesting
> > messages, but could you please send the messages you did get?
>
> x86-64.
>
> dmesg below. (ignore the rpc oops, reported elsewhere, it's unrelated)

Well, there really are no btrfs messages in there at all. Do you have
free space for a clean copy of the btrfs partition? Trying to figure
out if you have a stale corruption (on two boxes seems really unlikely).
I definitely can't reproduce it here.

-chris



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