From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bastian Blank <bastian@waldi.eu.org>
Subject: Re: Re: [PATCH] xen: Disable stack protector for irq
	helper
Date: Tue, 6 Oct 2009 00:43:10 +0200
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To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Xen-devel <xen-devel@lists.xensource.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@redhat.com>, the arch/x86 maintainers <x86@kernel.org>, Stable Kernel <stable@kernel.org>
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On Mon, Oct 05, 2009 at 10:21:01AM -0700, Jeremy Fitzhardinge wrote:
> > Save all caller-saved registers on x86_32 for the paravirt callee saved
> > registers.
> That looks better, but it is still overkill.  We only need to save the
> set of registers the ABI requires the callee to preserve.  What
> additional register(s) gets clobbered by stack-protector that need to be
> saved?

Well, exactly the two, ecx and edx. eax is still clobbered by the return
value. Anyway, it works in praxis.

Bastian

-- 
Superior ability breeds superior ambition.
		-- Spock, "Space Seed", stardate 3141.9