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Re: [Xen-devel] garbage registers when domain killed by xen
| To: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] garbage registers when domain killed by xen |
| 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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| Reply-to: | Kip Macy <kip.macy@xxxxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
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.
-Kip
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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