From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx125.postini.com [74.125.245.125]) by kanga.kvack.org (Postfix) with SMTP id 72BD26B002B for ; Thu, 27 Dec 2012 18:42:57 -0500 (EST) Received: by mail-qc0-f180.google.com with SMTP id v28so5155672qcm.39 for ; Thu, 27 Dec 2012 15:42:56 -0800 (PST) MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: <50DCDC21.6080303@iskon.hr> References: <50DCDC21.6080303@iskon.hr> Date: Fri, 28 Dec 2012 00:42:56 +0100 Message-ID: Subject: Re: BUG: unable to handle kernel NULL pointer dereference at 0000000000000500 From: Sedat Dilek Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Zlatko Calusic Cc: LKML , linux-mm On Fri, Dec 28, 2012 at 12:39 AM, Zlatko Calusic wrote: > On 28.12.2012 00:30, Sedat Dilek wrote: >> >> Hi Zlatko, >> >> I am not sure if I hit the same problem as described in this thread. >> >> Under heavy load, while building a customized toolchain for the Freetz >> router project I got a BUG || NULL pointer derefence || kswapd || >> zone_balanced || pgdat_balanced() etc. (details see my screenshot). >> >> I will try your patch from [1] ***only*** on top of my last >> Linux-v3.8-rc1 GIT setup (post-v3.8-rc1 mainline + some net-fixes). >> > > Yes, that's the same bug. It should be fixed with my latest patch, so I'd > appreciate you testing it, to be on the safe side this time. There should be > no difference if you apply it to anything newer than 3.8-rc1, so go for it. > Thanks! > Not sure how I can really reproduce this bug as one build worked fine within my last v3.8-rc1 kernel. I increased the parallel-make-jobs-number from "4" to "8" to stress a bit harder. Just building right now... and will report. If you have any test-case (script or whatever), please let me/us know. Thanks. - Sedat - > Regards, > -- > Zlatko -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org