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Re: [Xen-users] Xen 3.4.2 hypervisor crash, Cannot access memory beyond

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-users] Xen 3.4.2 hypervisor crash, Cannot access memory beyond end of bootstrap direct-map area, Unknown interrupt
From: Martin Kraus <martin.kraus@xxxxxxxxxxx>
Date: Fri, 29 Jan 2010 01:23:06 +0100
Cc: Thiago Camargo Martins Cordeiro <thiagocmartinsc@xxxxxxxxx>, Gabor Szilagyi <szilagyi@xxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
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On Thu, Jan 28, 2010 at 11:04:15PM +0000, Keir Fraser wrote:
> No, it'll be a 32-bit-specific issue though. I would recommend just running
> a 64-bit build of Xen, if the CPU supports 64-bit mode. It'll be something
> to do with GRUB2 dumping the dom0 kernel and initrd higher in memory than
> GRUB1, past the end of where 32-bit Xen is set up to be able to access.
> Probably not a hard fix, although I have no GRUB2 installation to test with.

I've had this problem for a year now. The only xen version running is 3.0.3,
newer versions crash with this error message. I've seen few posts about this 
but no replies.

It might be related to grub2. I've tried grub2 from debian sid today and even
xen 3.0.3 stopped working, I had to downgrade back to stable grub2 debian
version.

mk

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