Re: [Xen-devel] 4.2.3 - xen: vector 0x2 is not implemented

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Tue, 2013-10-08 at 10:50 +1100, Steven Haigh wrote:
> Hi all,
> 
> I've had a report of a host starting to give this output:
> Oct 7 19:36:37 kernel: INFO: rcu_sched self-detected stall on CPU { 2}
> (t=273561 jiffies g=17919 c=17918 q=9688)
> Oct 7 19:36:37 kernel: sending NMI to all CPUs:
> Oct 7 19:36:37 kernel: xen: vector 0x2 is not implemented

This bit is just a symptom triggered by the initial rcu stall which is
your real problem.

That said I thought the NMI thing was fixed recently, which might have
gotten you better debugging on the rcu problem.

It's a kernel issue rather than a Xen one BTW.

Ian.

> 
> Kernel is 3.11.2.
> Xen is 4.2.3.
> 
> I've seen various random reports of this, but never a follow up on what
> seemed to be the issue or a fix. The latest was on the ARM platform, but
> may be a different issue.
> 
> Has anyone come across these before and found a solution?
> 
> Xen 4.2.2 seems unaffected.
> 
> Bug Report:
> http://xen.crc.id.au/bugs/view.php?id=21
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel



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