From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hollis Blanchard <hollisb@us.ibm.com>
Subject: Re: schedule() vs softirqs
Date: Fri, 15 Dec 2006 14:41:34 -0600
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References: <C1A8AF75.62C2%keir@xensource.com>
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On Fri, 2006-12-15 at 20:00 +0000, Keir Fraser wrote:
> 
> > Also, that doesn't solve the lazy register saving problem.
> 
> I assume this is a PPC-specific issue?

It's an issue with any architecture with a large number of registers
which aren't automatically saved by hardware (and a C ABI that makes
some of them non-volatile).

x86 has a small number of registers. ia64 automatically saves them (from
what I understand). So of the currently-supported architectures, yes,
that leaves PowerPC.

-- 
Hollis Blanchard
IBM Linux Technology Center