Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755515AbYGMT32 (ORCPT ); Sun, 13 Jul 2008 15:29:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755641AbYGMT3R (ORCPT ); Sun, 13 Jul 2008 15:29:17 -0400 Received: from wf-out-1314.google.com ([209.85.200.168]:36777 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755790AbYGMT3P (ORCPT ); Sun, 13 Jul 2008 15:29:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=wSWQyj998cOVpLzPtOnQQPzwsyKKN5zStoQXchJQLmXMNfPABzA90ME8j1huCtqRwk WgzVETocftkwYpIa/SlzzFAPljLI77zgyuMlCFqXakfJvd34UJV2h5J990k8Am/HEMnr ZWMRBc31A9W8QrBHEKPLt5FCuEk92OcYEaqpU= Message-ID: <19f34abd0807131229u45808531pdcbb9cd8b439c436@mail.gmail.com> Date: Sun, 13 Jul 2008 21:29:14 +0200 From: "Vegard Nossum" To: "Rafael J. Wysocki" Subject: Re: [Bug #10955] v2.6.26-rc7: BUG task_struct: Poison overwritten Cc: "Linux Kernel Mailing List" , "Kernel Testers List" , "Peter Zijlstra" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1483 Lines: 35 Hi, On Sun, Jul 13, 2008 at 8:00 PM, Rafael J. Wysocki wrote: > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10955 > Subject : v2.6.26-rc7: BUG task_struct: Poison overwritten > Submitter : Vegard Nossum > Date : 2008-06-21 19:24 (23 days old) > References : http://marc.info/?l=linux-kernel&m=121407641925121&w=4 > Handled-By : Peter Zijlstra We've seen a rather lot of fixes for cpu hotplug and the scheduler over the last few weeks. I'm suspecting that this one might also have been fixed unknowingly by one of the other commits (this is backed by the fact that I haven't been able to reproduce _any_ cpu-hotplug-related failure as of the latest mainline kernel), on the other hand I don't know exactly why. I guess I should run a longer test to see if this comes up again. (Oh, maybe it was an RCU-type thing? Nick Piggin recently had a patch that fixed some RCU error. Peter?) Vegard -- "The animistic metaphor of the bug that maliciously sneaked in while the programmer was not looking is intellectually dishonest as it disguises that the error is the programmer's own creation." -- E. W. Dijkstra, EWD1036 -- 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/