linux-kernel - Re: [PATCH] mm: fix page_mkclean

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Message-ID: <20061228184440.GC20596@flint.arm.linux.org.uk>
Date:	Thu, 28 Dec 2006 18:44:40 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Gordon Farquharson <gordonfarquharson@...il.com>,
	David Miller <davem@...emloft.net>, ranma@...edrich.de,
	tbm@...ius.com, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	andrei.popa@...eo.ro, Andrew Morton <akpm@...l.org>,
	hugh@...itas.com, nickpiggin@...oo.com.au, arjan@...radead.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: fix page_mkclean_one

On Thu, Dec 28, 2006 at 09:27:12AM -0800, Linus Torvalds wrote:
> On Thu, 28 Dec 2006, Russell King wrote:
> > and if you look at glibc's memset() function, you'll notice that's exactly
> > what you expect if you pass a non-8bit value to it.  Ergo, what you're
> > seeing is utterly expected given glibc's memset() implementation on ARM.
> 
> Guys, you _really_ should fix memset(). What you describe is a _bug_. 

Yup, but I have nothing to do with glibc because I refuse to do that
silly copyright assignment FSF thing.  Hopefully someone else can
resolve it, but...

> > Fixing Linus' test program to pass nr & 255 to memset
> 
> No. I'm almost certain that that is not a "fix", it's a workaround for a 
> serious bug in your glibc crap.

_is_ a fix whether _you_ like it or not to work around the issue so
people can at least run your test program.  I'm not saying it's a
proper fix though.

Of course, if you prefer to be mislead by incorrect bug reports...

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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