linux-kernel - Re: [PATCH] Re: Sparc32: random invalid instruction occourances on sparc32 (sun4c)

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Message-Id: <1183520006.29081.79.camel@shinybook.infradead.org>
Date:	Tue, 03 Jul 2007 23:33:25 -0400
From:	David Woodhouse <dwmw2@...radead.org>
To:	Mark Fortescue <mark@...hpc.demon.co.uk>
Cc:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, sparclinux@...r.kernel.org,
	David Miller <davem@...emloft.net>,
	Christoph Lameter <clameter@...r.sgi.com>,
	William Lee Irwin III <wli@...omorphy.com>
Subject: Re: [PATCH] Re: Sparc32: random invalid instruction occourances on
	sparc32 (sun4c)

On Wed, 2007-07-04 at 04:27 +0100, Mark Fortescue wrote:
> I tried the previous patch and it looks like it fixes the issue however 
> one of the test builds I did caused depmod to use up all available memory 
> (40M - kernel memory) before taking out the kernel with the oom killer.
> At present, I do not know if it is a depmod issue or a kernel issue.
> I will have to do some more tests later on to day.

That's almost certain to be an unrelated issue.

> I have looked at the latest patch below and am I am still not sure about 
> two areas. Please take a look at my offering based on your latest 
> patch (included here to it will probably get mangled).
> 
> Note the change to lines 2178 to 2185. I have also changed/moved the 
> alignment of size (see lines 2197 to 2206) based on your changes. 

The first looks correct; well spotted. The second is just cosmetic but
also seems correct. I might be inclined to make the #define
'RED_ZONE_ALIGN' and use it in the other places too.

-- 
dwmw2

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