Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755332Ab3CWDTS (ORCPT ); Fri, 22 Mar 2013 23:19:18 -0400 Received: from mail-qe0-f53.google.com ([209.85.128.53]:63974 "EHLO mail-qe0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755205Ab3CWDTR (ORCPT ); Fri, 22 Mar 2013 23:19:17 -0400 MIME-Version: 1.0 In-Reply-To: References: <1363809337-29718-1-git-send-email-riel@surriel.com> Date: Sat, 23 Mar 2013 10:19:16 +0700 Message-ID: Subject: Re: ipc,sem: sysv semaphore scalability From: Emmanuel Benisty To: Linus Torvalds Cc: Rik van Riel , Davidlohr Bueso , Linux Kernel Mailing List , Andrew Morton , hhuang@redhat.com, "Low, Jason" , Michel Lespinasse , Larry Woodman , "Vinod, Chegu" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1157 Lines: 28 Hi Linus, On Fri, Mar 22, 2013 at 10:37 PM, Linus Torvalds wrote: > On Fri, Mar 22, 2013 at 4:04 AM, Emmanuel Benisty wrote: >> >> I was trying your patchset and my machine died while building a >> package. I could reproduce the bug the (only) two times I tried. >> There's a poor quality picture here: http://i.imgur.com/MuYuyQC.jpg > > Hmm. The original oops may well have scrolled off the window, what > remains is just indicating something is corrupted in slab. Which isn't > likely to give much hints.. > > Can you try to reproduce this with CONFIG_SLUB_DEBUG=y and > CONFIG_SLUB_DEBUG_ON=y, and see if there are any earlier messages? I could reproduce it but could you please let me know what would be the right tools I should use to catch the original oops? This is what I got but I doubt it will be helpful: http://i.imgur.com/Mewi1hC.jpg Thanks. -- 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/