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[Xen-ia64-devel] Re: [PATCH] Patch to make latest hg multi-domain back t

To: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>
Subject: [Xen-ia64-devel] Re: [PATCH] Patch to make latest hg multi-domain back to work
From: John Byrne <john.l.byrne@xxxxxx>
Date: Wed, 07 Sep 2005 16:41:23 -0700
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Magenheimer, Dan (HP Labs Fort Collins) wrote:
It appears that the patch below has created some instability
in domain0.  I regularly see a crash now in domain0 when
compiling linux.  I changed back to the old code and the
crash seems to go away.  Since it is unpredictable, I
changed back to the new code AND added printfs around
the new code in vcpu_translate and domain0 fails immediately after
the printf (but ONLY when it is called from ia64_do_page_fault...
its OK when called from vcpu_tpa).

The attached patch returns stability to the system.  It
is definitely not a final patch (for example it's not
SMP-safe), but I thought I would
post it if anybody is trying to get some work done and
domain0 keeps crashing intermittently.

Kevin, John, I still haven't succesfully reproduced your
multi-domain success, so please try this patch with
the second domain.

Thanks,
Dan


Things aren't working well for me at all right now. If I start a guest, things hang up/reboot. Your patch, Kevin's patch, no patch. Something else is wrong somewhere.

John

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