linux-kernel - Re: [QUICKLIST 1/5] Quicklists for page table pages V4

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Message-Id: <20070326.184508.85687849.davem@davemloft.net>
Date:	Mon, 26 Mar 2007 18:45:08 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	wli@...omorphy.com
Cc:	akpm@...ux-foundation.org, clameter@....com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [QUICKLIST 1/5] Quicklists for page table pages V4

From: William Lee Irwin III <wli@...omorphy.com>
Date: Mon, 26 Mar 2007 18:06:24 -0700

> On Mon, Mar 26, 2007 at 10:26:51AM -0800, Andrew Morton wrote:
> > b) we understand why the below simple modification crashes i386.
> 
> Full eager zeroing patches not dependent on quicklist code don't crash,
> so there is no latent use-after-free issue covered up by caching. I'll
> help out more on the i386 front as-needed.

I've looked into this a few times and I am quite mystified as
to why that simple test patch crashes.
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