Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755602AbZJRXlv (ORCPT ); Sun, 18 Oct 2009 19:41:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755431AbZJRXlu (ORCPT ); Sun, 18 Oct 2009 19:41:50 -0400 Received: from cpsmtpm-eml102.kpnxchange.com ([195.121.3.6]:50957 "EHLO CPSMTPM-EML102.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752380AbZJRXlt (ORCPT ); Sun, 18 Oct 2009 19:41:49 -0400 From: Frans Pop To: Sven Geggus Subject: Re: Kernel crash on 2.6.31.x (kcryptd: page allocation failure..) Date: Mon, 19 Oct 2009 01:41:49 +0200 User-Agent: KMail/1.9.9 Cc: linux-kernel@vger.kernel.org, Mel Gorman , linux-mm@kvack.org, Kernel Testers List References: <200910172230.13162.elendil@planet.nl> In-reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200910190141.50752.elendil@planet.nl> X-OriginalArrivalTime: 18 Oct 2009 23:41:53.0566 (UTC) FILETIME=[924BD3E0:01CA504C] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1407 Lines: 41 (Sven: For kernel mailing lists please always do a "reply to all". Although some other communities do not want that, it is standard for the kernel community. It is needed because otherwise, with the huge amount of traffic on the linux-kernel list, people are too likely to miss replies.) Sven Geggus wrote: > Frans Pop wrote: > >> What is the _exact_ command sequence you use to reproduce it? I already >> have a testcase, but a second test case, or a simpler one, may be >> useful. > > Not a particular easy testcase. This is what I did: > > On the crashing machine with the dm-encrypted xfs volume: > ionice -c 3 socat TCP4-LISTEN:5555 - >backup.tar > > On the source machine: > tar cv dir |socat - TCP4:targetmachine:5555 > > You will certainly not need to use tar. > > socat /dev/zero TCP4:targetmachine:5555 should work as well. > > I don't know if TCP traffic is really needed probably it is. Thanks. In the mean time I've been able to trace the culprit. Could you please try if reverting 373c0a7e + 8aa7e847 [1] on top of 2.6.31 fixes the issue for you? Cheers, FJP [1] The first commit is a build fix for the second. -- 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/