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Re: port-xen/45975 (panic: HYPERVISOR_mmu_update failed, ret: -22 during heavy activity)
The following reply was made to PR port-xen/45975; it has been noted by GNATS.
From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: Jeff Rizzo <riz%netbsd.org@localhost>
Cc: gnats-bugs%netbsd.org@localhost, Greg Oster <oster%cs.usask.ca@localhost>
Subject: Re: port-xen/45975 (panic: HYPERVISOR_mmu_update failed, ret: -22
during heavy activity)
Date: Sat, 18 Feb 2012 19:27:56 +0100
On Sat, Feb 18, 2012 at 09:33:36AM -0800, Jeff Rizzo wrote:
> On 2/17/12 9:30 AM, Greg Oster wrote:
> > With this patch I was able to do a successful 'build.sh -j8' build on an
> > amd64 DOMU that was previously failing.
> With the second patch (and the first), things are definitely _more_
> stable, though I still get crashes (with, unfortunately, no
> backtrace info, because the console is garbled) doing a -j 16/-j 24
> build on an 8-vcpu amazon EC2 instance. On another dom0 where I was
> seeing this particular problem, it seems to be gone.
Do you know the hypervisor version on amazon EC2 ?
We have fixed a few Xen bugs related to PDP recursive mappings;
AKAIF they've been integrated upstream but maybe amazon don't have them
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
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