[CentOS-virt] BUG: soft lockup detected on CPU#?
brett at worth.id.au
Tue Jan 22 22:23:54 UTC 2008
Ross S. W. Walker wrote:
> After seeing this same issue on my Xen 3.2 install, but with NO
> migration or iSCSI happening I decided it is probably NOT iSCSI's
> fault, so I decided to research it a little more and this is what
> I found:
Thanks Ross. I'll do more research into this when I get back to work.
The Release Notes say:
"Soft lockup messages after suspend/resume or live migration (Red Hat
messages are harmless, but there may be a period of inactivity in the
guest during live migration as a result of the lockup."
This seems to imply that the delay during the live migration is causing
the messages. In my case the messages persist forever long after the
migration. I might take a look at the patched kernel and see it there's
a specific fix that could be applied to a more recent kernel.
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