Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933465Ab0GOPCM (ORCPT ); Thu, 15 Jul 2010 11:02:12 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:58921 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933380Ab0GOPCI (ORCPT ); Thu, 15 Jul 2010 11:02:08 -0400 Subject: Re: kmemleak, cpu usage jump out of nowhere From: Catalin Marinas To: Pekka Enberg Cc: Zeno Davatz , linux-kernel@vger.kernel.org, Andrew Morton In-Reply-To: <4C3D89AC.4040303@cs.helsinki.fi> References: <1279100846.8592.53.camel@e102109-lin.cambridge.arm.com> <4C3D89AC.4040303@cs.helsinki.fi> Content-Type: text/plain; charset="UTF-8" Organization: ARM Limited Date: Thu, 15 Jul 2010 15:58:11 +0100 Message-ID: <1279205891.6664.46.camel@e102109-lin.cambridge.arm.com> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 15 Jul 2010 14:58:12.0039 (UTC) FILETIME=[2523CD70:01CB242E] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1556 Lines: 44 On Wed, 2010-07-14 at 10:55 +0100, Pekka Enberg wrote: > Catalin Marinas wrote: > > On Wed, 2010-07-14 at 09:27 +0100, Zeno Davatz wrote: > >> On Wed, Jul 14, 2010 at 10:05 AM, Pekka Enberg wrote: > >>> On Wed, Jul 14, 2010 at 9:12 AM, Zeno Davatz wrote: > > > >>>> I am attaching you the file from /sys/kernel/debug/kmemleak > >>> Zeno, can you post your dmesg and .config, please? > >> Sure, see attached files. > > > > It looks like NO_BOOTMEM is enabled. You can try the attached patch (I > > need to post it again on the list). > > > > > > kmemleak: Add support for NO_BOOTMEM configurations > > > > From: Catalin Marinas > > > > With commits 08677214 and 59be5a8e, alloc_bootmem()/free_bootmem() and > > friends use the early_res functions for memory management when > > NO_BOOTMEM is enabled. This patch adds the kmemleak calls in the > > corresponding code paths for bootmem allocations. > > > > Signed-off-by: Catalin Marinas > > Cc: Yinghai Lu > > Cc: H. Peter Anvin > > Makes sense. > > Acked-by: Pekka Enberg I'll post an updated patch since I missed a callback. I've been testing it since yesterday and seems ok. Thanks. -- Catalin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/