[DRBD-user] DRBD Kernel Panic DRBD->LVM->Xen

Hany Fahim hany at vmdevlabs.com
Fri Apr 9 20:00:23 CEST 2010

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Thanks for the reply. I actually came across that thread yesterday after I
originally sent the first e-mail. I've disabled checksumming using ethtool
-K described and it's been working great. It was also documented in this
thread:

https://bugzilla.redhat.com/show_bug.cgi?id=443621

Thanks again,

hany

On Thu, Apr 8, 2010 at 4:09 PM, Lars Ellenberg <lars.ellenberg at linbit.com>wrote:

> On Thu, Apr 08, 2010 at 08:48:54PM +0200, Florian Haas wrote:
> > On 04/08/2010 08:14 PM, Hany Fahim wrote:
> > > Hi,
> > >
> > > I'm currently running a Xen setup using the CentOS distribution DRBD
> > > 8.3.2 from Extras Repo. I'm running into consistent kernel panics when
> > > I'm benchmarking the individual DomUs. When the primary node crashes,
> > > the secondary also panics shortly after and the two servers reboot in
> > > tandem. Doing a search in Google, I found someone else who has the
> exact
> > > same issue as I do:
> > >
> > >
> http://lists.centos.org/pipermail/centos-virt/2008-December/000775.html
> >
> > And it was answered here:
> >
> > http://lists.linbit.com/pipermail/drbd-user/2008-December/011092.html
> >
> > Maybe Maros can share additional findings.
>
>
> Actually, it later turned out to be likely related to this:
> http://www.gossamer-threads.com/lists/drbd/users/17207
> (read the whole thread)
>
> there are a few more threads on that thing,
> but basically you can use 8.3.7, and see it that helps,
> upgrade your xen kernel as well,
> do some of the ethtool things mentioned in the above thread,
> and if none of that helps, disable DRBD's use of sendpage,
> which is a module parameter, but can also be toggled at runtime.
>
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
>
> DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
> __
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