[CentOS-virt] BUG: soft lockup detected on CPU#?
Brett Worth
brett at worth.id.auTue Jan 22 22:23:54 UTC 2008
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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: > > http://docs.xensource.com/XenServer/4.0.1/guest/ch04s08.html#rhel5_limitations > 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 Bugzilla 250994 <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=250994>). These 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. Brett
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