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Re: [Xen-devel] garbage registers when domain killed by xen

  • To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • From: Kip Macy <kip.macy@xxxxxxxxx>
  • Date: Sat, 7 May 2005 07:10:54 -0700
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Sat, 07 May 2005 14:10:31 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

I'm not sure about ecx/edx but I know eip is bad. There are legitimate
cases of trying to call a null function pointer, but I know from the
context that that isn't the case. It appears to be a page fault - but
I don't have trap handlers installed yet.


On 5/7/05, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
> On 7 May 2005, at 02:26, Kip Macy wrote:
> > Is it really necessary for xen to overwrite part of a domain's context
> > on a fatal trap?
> Which ones are overwritten -- ecx/edx? I'm not sure how that could
> happen but it's clearly a bug rather than intentional.
>   -- Keir

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