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[Xen-devel] Re: Xen bug or VMware bug?

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Re: Xen bug or VMware bug?
From: "Kip Macy" <kip.macy@xxxxxxxxx>
Date: Mon, 24 Dec 2007 17:40:44 -0800
Delivery-date: Mon, 24 Dec 2007 17:41:07 -0800
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Actually, it turns out that it occurs slightly further up. Trying to
add a page directory with only the valid flag set seems to make Xen
unhappy (i.e. system reset). Setting the R/W flag doesn't seem to work
as it complains:

(XEN) mm.c:1477:d1 Bad L3 flags 2

In any event I'll figure out what the right incantation is, but it
appears you may have a legitimate hole at the moment.

 -Kip


On Dec 24, 2007 4:39 PM, Kip Macy <kip.macy@xxxxxxxxx> wrote:
> I'm running a fairly recent version of xen:
>
> [kmacy@xen0 xen-3.1-testing.hg]$ hg tip
> changeset:   15547:f4dc0d3dfb0f
> tag:         tip
> user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
> date:        Sat Dec 08 17:23:05 2007 +0000
> summary:     Update version tag to 3.1.3-rc1-devel (nearly ready for -rc1).
>
> I'm currently doing bring-up inside of a VMware VM. The VM resets
> itself with a stack fault when I execute a MMUEXT_PIN_L1_TABLE.
>
> Has any bug that could be causing this been fixed recently? If not
> could someone do me a quick favor and try out:
>
> http://www.fsmware.com/xenofreebsd/stackfault/xen.tgz
>
> All it takes for me is 'xm create xmexample1' to cause dom0 to be reset.
>
>
> Thanks.
>
>  -Kip
>

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