Re: [Xen-devel] Xen pv_ops dom0 2.6.32.13 issues

[greno@xxxxxxxxxxx]

Jeremy,
  The soft lockups seemed to be occurring in different systems.  And I could never make sense out of what was triggering them.  I have not mounted any file systems with "nobarriers" in guests.  The guests are all a single /dev/xvda.  The underlying physical hardware is LVM over RAID-1 arrays.  I'm attaching dmesg, kern.log, and messages in case these might be useful.

-Gerry



Jun 9, 2010 06:38:00 PM, jeremy@xxxxxxxx wrote:
> On 06/09/2010 02:02 PM, greno@xxxxxxxxxxx wrote:
> >
> > Ok, I've been running this 2.6.32.13 pv_ops dom0 kernel for several
> > weeks and it has twice killed my domU's.  I get numerous CPU soft
> > lockup bug errors and at times it will freeze which means a power
> > cycle boot.
>
> The lockups are in dom0 or domU?  Do the backtraces indicate a common
> subsystem, or are they all over the place?
>
> > This has resulted in things like:
> > EXT-fs error (device dm-0): ext4_lookup: deleted inode reference
> > EXT-fs error (device dm-0): ext4_lookup: deleted inode reference
> > in the domU boots which has killed two of them.
>
> What's your storage path from guest device to media?  Are they using
> barriers?
>
>     J
>
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