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Re: [Xen-devel] pv_ops dom0 BUG in xen_flush_tlb_others
| To: | Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] pv_ops dom0 BUG in xen_flush_tlb_others |
| From: | Christophe Saout <christophe@xxxxxxxx> |
| Date: | Thu, 05 Mar 2009 02:39:59 +0100 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 04 Mar 2009 17:40:51 -0800 |
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Hi Jeremy,
> > I started compiling a larger package and after I few minute the machine
> > locked up with the following BUG. It's the second time I observe this
> > one, so it might be a race condition or something lurking here.
> > (possibly not dom0 specific at all)
> >
> > The BUG() is triggered because the CPU mask is empty. So maybe it's not
> > a xen bug at all, just a weird occurence in the kernel -
> > native_flush_tlb_others doesn't have such a check.
>
> Interesting. I've never seen it trigger, but I think we can easily
> remove the test with no bad effects.
I just removed it. Let's see whether the qt build gets through. :-)
Christophe
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