Re: [Bug #12465] KVM guests stalling on 2.6.28 (bisected)

Kevin Shanahan
2009-03-16T22:55:59Z

On Mon, 2009-03-16 at 21:07 +0100, Frederic Weisbecker wrote:
> I've looked a bit at your traces.
> I think it's probably too wide to find something inside.
> Latest -tip is provided with a new set of events tracing, meaning
> that you will be able to produce function graph traces with various
> sched events included.
>
> Another thing, is it possible to reproduce it with only one ping?
> Or testing perioding pings and keep only one that raised a relevant
> threshold of latency? I think we could do a script that can do that.
> It would make the trace much clearer.

Yeah, I think that should be possible. If you can come up with such a
script, that would be great.

> Just wait a bit, I'm looking at which event could be relevant to enable
> and I come back to you with a set of commands to test.

Excellent! Thanks for looking into this.

Cheers,
Kevin.