Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261232AbVDSL1l (ORCPT ); Tue, 19 Apr 2005 07:27:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261461AbVDSL1l (ORCPT ); Tue, 19 Apr 2005 07:27:41 -0400 Received: from mail.dif.dk ([193.138.115.101]:61101 "EHLO saerimmer.dif.dk") by vger.kernel.org with ESMTP id S261232AbVDSL1j (ORCPT ); Tue, 19 Apr 2005 07:27:39 -0400 Date: Tue, 19 Apr 2005 13:30:40 +0200 (CEST) From: Jesper Juhl To: Alexander Nyberg Cc: LKML Subject: Re: 2.6.12-rc2-mm3 regression - certain applications get SIGSEGV but are fine with 2.6.12-rc2-mm2 In-Reply-To: <1113908202.2067.1.camel@localhost.localdomain> Message-ID: References: <1113908202.2067.1.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1413 Lines: 32 On Tue, 19 Apr 2005, Alexander Nyberg wrote: > tis 2005-04-19 klockan 11:33 +0200 skrev Jesper Juhl: > > Everything is fine with 2.6.12-rc2, 2.6.12-rc2-mm1, 2.6.12-rc2-mm2 & > > earlier kernels as well, but 2.6.12-rc2-mm3 seems to have a problem. > > I don't know what's causing this, all I can do at the moment is describe > > the symptoms. > > > > Certain applications (krootimage and ksplash from KDE 3.4 are 100% > > reproducible test cases) that used to run fine have started crashing with > > SIGSEGV on 2.6.12-rc2-mm3. I see nothing suspicious in dmesg. > > I'm including dmesg output as well as strace output from krootimage and > > ksplash below. > > If someone could give me a hint as to what the cause of this could be or > > what to try in order to track it down I'd appreciate it. > > This is 100% reproducible. > > Try backing out > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc2/2.6.12-rc2-mm3/broken-out/sched-unlocked-context-switches.patch > That did the trick. All the apps that segfaulted previously now seem to be running just fine again. Are Ingo, Nick & Andrew aware that this patch has issues? -- Jesper - 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/