From: nmeyers@vestmark.com
To: Mike Galbraith <efault@gmx.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Major slab mem leak with 2.6.17 / GCC 4.1.1
Date: Fri, 13 Oct 2006 06:55:02 -0400 [thread overview]
Message-ID: <20061013105502.GA9773@viviport.com> (raw)
In-Reply-To: <1160727912.15431.11.camel@Homer.simpson.net>
On Fri, Oct 13, 2006 at 08:25:12AM +0000, Mike Galbraith wrote:
> On Thu, 2006-10-12 at 20:49 -0400, nmeyers@vestmark.com wrote:
>
> > I tried Catalin Marinas' kmemleak patches, and had to rebuild with
> > GCC 3.4.6 because of a 4.1.1 compiler bug that prevents compilation
> > of the patches.
>
> Yeah, seems any remotely recent gcc hates it. That puts a rather large
> dent in usability.
>
> > And... building with 3.4.5 fixed the leak! So I guess I have very little
> > detail to report - except that there's a nasty leak in 2.6.17 when built
> > with 4.1.1.
>
> If you build using 3.4.5 _without_ the kmemleak patches, do you see the
> leak again? (ie is kmemleak altering timing, or is kernel miscompiled)
I wondered the same thing. I went back to the original source and .config
- rebuilding with 3.4.6 (3.4.5 is a typo) fixed the leak.
>
> > If anyone has a version of kmemleak that I can build with 4.1.1, or
> > any other suggestions for instrumentation, I'd be happy to gather more
> > data - the problem is very easy for me to reproduce.
>
> I can only suggest trying latest/greatest to see if the issue is still
> present, and if so, try to find a way that others may trigger it.
I may just do that - apparently 4.1.2 is supposed to fix the kmemleak
compile problem. My (admittedly lazy) inclination is to wait until that
comes out in a Gentoo ebuild.
Nathan
>
> -Mike
>
>
next prev parent reply other threads:[~2006-10-13 10:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-13 0:49 Major slab mem leak with 2.6.17 / GCC 4.1.1 nmeyers
2006-10-13 5:56 ` Pekka Enberg
2006-10-13 11:59 ` Catalin Marinas
2006-10-15 7:59 ` Mike Galbraith
2006-10-15 14:14 ` nmeyers
2006-10-15 17:59 ` Mike Galbraith
2006-10-18 13:59 ` Nathan Meyers
2006-10-16 5:32 ` Mike Galbraith
2006-10-16 8:07 ` Catalin Marinas
2006-10-16 9:08 ` Mike Galbraith
2006-10-16 8:44 ` Catalin Marinas
2006-10-16 9:33 ` Mike Galbraith
2006-10-13 8:25 ` Mike Galbraith
2006-10-13 10:55 ` nmeyers [this message]
2006-10-13 21:28 ` Mike Galbraith
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