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From: Akinobu Mita <akinobu.mita@gmail.com>
To: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: linux-kernel@vger.kernel.org,
	Christoph Lameter <cl@linux-foundation.org>,
	Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
	linux-mm@kvack.org
Subject: Re: [PATCH] slub: fix check_bytes() for slub debugging
Date: Tue, 9 Aug 2011 10:08:12 +0900	[thread overview]
Message-ID: <CAC5umyg=zq7BxSrFLtkkpMpKheW7k++KLmQkAfmk56vKn8EykQ@mail.gmail.com> (raw)
In-Reply-To: <20110808212418.GA3297@joi.lan>

2011/8/9 Marcin Slusarz <marcin.slusarz@gmail.com>:

> I tested your patch to check if performance improvements of commit
> c4089f98e943ff445665dea49c190657b34ccffe come from this bug or not.
> And forunately they aren't - performance is exactly the same.

That's good to know.

> How did you find it?

When I tried to reuse it in mm/debug-pagealloc.c, I realized that
check_bytes() didn't work with 0xaa.

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  reply	other threads:[~2011-08-09  1:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-07  9:30 Akinobu Mita
2011-08-08 21:24 ` Marcin Slusarz
2011-08-09  1:08   ` Akinobu Mita [this message]
2011-08-09  3:10 ` Eric Dumazet
2011-08-09  3:33   ` Eric Dumazet
2011-08-09  9:38     ` Akinobu Mita
2011-08-09  9:43       ` Pekka Enberg
2011-08-09  9:54         ` Eric Dumazet
2011-08-09  9:46       ` Eric Dumazet
2011-08-09 21:46         ` Marcin Slusarz

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