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Re: [Xen-devel] issues getting more than 16M ram to be used without oopsing. 1.2 and 1.3-unstable

> > > Maybe Xen pokes around in different ways/areas than the linux kernel did
> > > and has found some bad ram and/or APIC  flaw that I just never ran into
> > > with Linux by sheer chance.
> > 
> > Okay, I'll take a look at what changes there have been to IO-APIC and
> > ACPI code up to Linux 2.4.25 -- certainly the most recent 2.4 kernel
> > matches your IO-APIC version and doesn't print the 'unexpected
> > IO-APIC' message.
> > 
> > Perhaps there is some 'quirk' fix that we are missing -- VIA boards
> > usually need a few of those (the general opinion of VIA boards among
> > Linux kernel developers is pretty low, I think :-).
> I've pushed updates from latest Linux 2.4 into Xen. If you don't want
> to download the source repository and build it yourself, suitable Xen
> and Xenolinux images are available here:
>  http://www.cl.cam.ac.uk/~kaf24/xen.gz
>  http://www.cl.cam.ac.uk/~kaf24/xenolinux.gz

Another couple of things to try:
 1. Specify 'noacpi' and/or 'ignorebiostables' on Xen's command line.
    This will cause parsing of some configuration tables to be skipped
    -- which may help if the BIOS is buggy.
 2. Let us know more hardware details (e.g. VIA chipset version). It
 would be useful to see the output of lspci ('lspci -vv').

 -- Keir

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