Messages in this thread | | | Subject | Re: bisected: 'perf top' causing soft lockups under Xen | From | Peter Zijlstra <> | Date | Fri, 10 Feb 2012 18:28:21 +0100 |
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On Thu, 2012-02-09 at 18:32 -0800, Steven Noonan wrote: > [ 88.517599] [<ffffffff81085a86>] smp_call_function_single+0xec/0xfd
This looks like its waiting for an IPI to complete..
There's no actual BUGS or WARNs in the output, just the soft lockup thing saying things are taking a bit of time (clearly 15s waiting for an IPI isn't quite normal).
I've no idea why this wouldn't work on Xen, nor do the trace have any Xen specific muck in them.
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