From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756647Ab3C2SGg (ORCPT ); Fri, 29 Mar 2013 14:06:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:30813 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755884Ab3C2SGe (ORCPT ); Fri, 29 Mar 2013 14:06:34 -0400 Date: Fri, 29 Mar 2013 14:04:55 -0400 From: Dave Jones To: Linus Torvalds Cc: Andrew Morton , Rik van Riel , Davidlohr Bueso , Linux Kernel Mailing List , hhuang@redhat.com, "Low, Jason" , Michel Lespinasse , Larry Woodman , "Vinod, Chegu" , Peter Hurley Subject: Re: ipc,sem: sysv semaphore scalability Message-ID: <20130329180455.GA22395@redhat.com> Mail-Followup-To: Dave Jones , Linus Torvalds , Andrew Morton , Rik van Riel , Davidlohr Bueso , Linux Kernel Mailing List , hhuang@redhat.com, "Low, Jason" , Michel Lespinasse , Larry Woodman , "Vinod, Chegu" , Peter Hurley References: <1363809337-29718-1-git-send-email-riel@surriel.com> <20130321141058.76e028e492f98f6ee6e60353@linux-foundation.org> <20130326192852.GA25899@redhat.com> <20130326124309.077e21a9f59aaa3f3355e09b@linux-foundation.org> <20130329161746.GA8391@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 29, 2013 at 11:00:27AM -0700, Linus Torvalds wrote: > On Fri, Mar 29, 2013 at 9:17 AM, Dave Jones wrote: > > > > Now that I have that reverted, I'm not seeing msgrcv traces any more, but > > I've started seeing this.. > > > > general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC > > > > Looks like seg was already kfree'd. > > Just to clarify: is this you testing -mm that has Davidlohr's and > Rik's scalability patches? Or mainline? mainline. Your current tree. Dave