Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756074AbYFWD4T (ORCPT ); Sun, 22 Jun 2008 23:56:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753077AbYFWD4M (ORCPT ); Sun, 22 Jun 2008 23:56:12 -0400 Received: from smtp111.mail.mud.yahoo.com ([209.191.84.64]:37137 "HELO smtp111.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752854AbYFWD4M (ORCPT ); Sun, 22 Jun 2008 23:56:12 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=c2u4lvZzt5k+Xzkb67wd7xvJPaLChQYqm2OdgsYcMd0lVvE4BjZnpPgsMwKG+UyWOq1ZSdUSAF4/GOMTtJfGceda5gAQuWFFAtUe4aUlJfc6TvNETl0C1wOD+ehV4WJwoOd/OhC9UiRmwScBft+u9cWwC3TZPuWcPJH55osZuO8= ; X-YMail-OSG: rGvUdcwVM1mnFzGjUdY6T0RPJjGmLhL0xEGfQ936qbc_rTzpLPOiNrNvckXIFD5.OV3n3BeyEexkHjTTo8P_Ap2ocy7Nc4M7cy8EB6myVaFgxHAc4pOwY9Zowmlr_O44Psc- X-Yahoo-Newman-Property: ymail-3 From: Nick Piggin To: "Ryan Hope" Subject: Re: [BUG] Lockless patches cause hardlock under heavy IO Date: Mon, 23 Jun 2008 13:56:00 +1000 User-Agent: KMail/1.9.5 Cc: "Peter Zijlstra" , linux-mm@vger.kernel.org, LKML References: <48f7fe350806181415l4eba61b3i1d206de03147575e@mail.gmail.com> <200806231229.42943.nickpiggin@yahoo.com.au> <48f7fe350806222051g15edcd98g6faecc4a23f727ab@mail.gmail.com> In-Reply-To: <48f7fe350806222051g15edcd98g6faecc4a23f727ab@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200806231356.01030.nickpiggin@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 784 Lines: 21 On Monday 23 June 2008 13:51, Ryan Hope wrote: > well i get the hardlock on -mm with out using reiser4, i am pretty > sure is swap related Oh you do, OK good, it would be nice if I were able to reproduce it here. Any particular thing that triggers it? Preferably without running X or any proprietary software (eg. if you run a make -j128 kernel compile or something that forces a lot of swapping, does that lock up?). What filesystem? Can you also attach your .config No luck getting a backtrace out of the NMI watchdog? Thanks, Nick -- 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/