Re: [Xen-devel] Re: xencrash fixes for xen-3.3.0

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Hi,

It is very helpful.

Thanks
Itsuro Oda

On Tue, 07 Oct 2008 14:55:00 +0100
Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:

> On 7/10/08 14:39, "Dave Anderson" <anderson@xxxxxxxxxx> wrote:
> 
> > The patch looks OK.  But just for sanity's sake, is it guaranteed that
> > the per_cpu data section will be greater than 4k on both architectures?
> > Or could there be some combination of xen CONFIG options that could
> > reduce the i386 per_cpu data section contents to less than 4K even though
> > PERCPU_SHIFT is 13?
> 
> PERCPU_SHIFT has only ever been 12 or 13 so far, and it's unlikely to ever
> get smaller. Ongoing, we could help you out by defining some useful label in
> our linker script. For example, __per_cpu_shift = PERCPU_SHIFT (or
> '__per_cpu_start + PERCPU_SHIFT', as I'm not sure about creating labels
> outside the virtual address ranges defined by the object file).
> 
>  -- Keir
> 
> 
> 
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> http://lists.xensource.com/xen-devel

-- 
Itsuro ODA <oda@xxxxxxxxxxxxx>

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