Xen devel - Apr 2007 - hvm-start reproducibly crashes xen in unstable

Hi!

I get a page_alloc-Panic crashing xen (see backtrace) in latest unstable 
on an amd64.

The System has 1gb minus 32mb shared-video-ram.

The problem is reproducible on my machine doing the following two steps 
simple steps:

    1. create domain with 64mb memory
    2. create hvm-domain (256mb)

The System crashes immediately.
On reducing the first domain''s memory to 48 mb, or on first booting the
hvm-domain, no crash occurs.

Also after creating a 48mb-domain, shutting it down, recreating it with 
64mb and then starting the hvm-domain boots just fine.

Reducing the hvm-domain''s memory has no effect.

regards
patrick









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On 6/4/07 12:36, "Patrick Scharrenberg" <pittipatti@web.de>
wrote:
> I get a page_alloc-Panic crashing xen (see backtrace) in latest unstable
> on an amd64.
> 
> The System has 1gb minus 32mb shared-video-ram.
> 
> The problem is reproducible on my machine doing the following two steps
> simple steps:
> 
>     1. create domain with 64mb memory
>     2. create hvm-domain (256mb)
The HVM creation is failing due to lack of memory (somehow xend''s auto
balloon code has got confused I expect). Then you crash in the creation
failure path. That''s easily fixed.

 -- Keir



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