Kernel-3.1 Crash

Antonio Trande anto.trande at gmail.com
Fri Oct 28 15:42:41 UTC 2011


>again there is no fsck for btrfs yet.  so this doesn't make sense.

You have ask me clarifications.

I've just realized.
Sorry. :)


2011/10/28 Mike Snitzer <snitzer at redhat.com>

> On Fri, Oct 28 2011 at 11:11am -0400,
> Antonio Trande <anto.trande at gmail.com> wrote:
>
> > >You said that you saw the problem with Linux 3.0 too though?  But only
> > >if fsck is enabled.. yet btrfs doesn't yet have a publicly available
> > >fsck... so you need to clarify your 3.0 comment earlier.
> >
> > It's only my doubt.
> > Only one time i've tried to enable fsck on btrfs in fstab with Kernel 3.0
> > and seems to get same problem (but i'm not certain).
>
> again there is no fsck for btrfs yet.  so this doesn't make sense.
>
> > >That aside, I'd imagine that anaconda unnecessarily introduced a
> > >multipath layer for your storage when you really don't have multiple
> > >paths.  What does 'multipath -ll' show?
> >
> > # multipath -ll
> > mpatha (350014ee25794e366) dm-0 ATA,WDC WD5000BEVT-2
> > size=466G features='0' hwhandler='0' wp=rw
> > `-+- policy='round-robin 0' prio=1 status=active
> >   `- 0:0:0:0 sda 8:0  active ready running
>
> Yeah, anaconda should _not_ have introduced multipath for your setup.
> It is a layer of complexity that you are not benefitting from (worse: it
> is somehow causing instability for you with your btrfs config).
>
> It is possible to rebuild your initramfs (using dracut) so it does _not_
> have multipath enabled.
>
> I think the easiest would be to simply uninstall the
> 'device-mapper-multipath' package and make sure /etc/multipath/ and
> /etc/multipath.conf no longer exists.
>
> So when you re-create the initramfs with dracut it won't be able to copy
> any multipath enabling bits into the initramfs.
>
> Mike
>



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