This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] [RFC] New shadow paging code


At 16:36 -0400 on 13 Aug (1155486984), Puthiyaparambil, Aravindh wrote:
> I tried bringing up as many x86_32 UP WinXP domains as I could. I found
> that the qemu-dm process associated with each domain took up 50% cpu.

Are you auto-ballooing memory from dom0 for these domains?  One failure
mode of the memory allocation bug is that there is enough memory to
start the domain but not enough for qemu-dm to allocate its video card.
The domain then falls back to the much more cpu-intensive VGA support.

> Bringing up a domain with pae=1 crashes the system. I have attached the
> output. I tried this with a Win2003 server image.

Thanks; this is a known bug but the fix didn't make it into that
patch. :(

> I could not bring up any x86_64 domains. When I tried a SLES10 x86_64
> image I got a message saying "Your CPU does not support long mode. Use a
> 32-bit distribution"

I'll look into that; sounds like the results of CPUID are confusing the
linux kernel.



Xen-devel mailing list