From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756172Ab0IYRe4 (ORCPT ); Sat, 25 Sep 2010 13:34:56 -0400 Received: from fanny.its.uu.se ([130.238.4.241]:10928 "EHLO fanny.its.uu.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753597Ab0IYRez (ORCPT ); Sat, 25 Sep 2010 13:34:55 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <19614.12985.649827.886053@pilspetsen.it.uu.se> Date: Sat, 25 Sep 2010 19:34:49 +0200 From: Mikael Pettersson To: David Miller Cc: mikpe@it.uu.se, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [2.6.36-rc regression] occasional complete system hangs on sparc64 SMP In-Reply-To: <20100923.120935.173861259.davem@davemloft.net> References: <19611.34846.813757.309183@pilspetsen.it.uu.se> <20100923.120935.173861259.davem@davemloft.net> X-Mailer: VM 7.17 under Emacs 20.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org David Miller writes: > From: Mikael Pettersson > Date: Thu, 23 Sep 2010 19:02:22 +0200 > > > The 2.6.36-rc kernels do appear to be solid on a UP Ultra5, but that > > one no longer does any gcc builds or tests, only kernel builds. > > > > Any ideas, or do I have to try to bisect this? > > I've seen this too, it's some kind of deadlock obviously. > > Unfortunately I haven't gotten any further than you have in the > analysis. Update: I got another hang with 2.6.36-rc5, then went back to 2.6.36-rc1 which hung twice. SYSRQ would print help text and the name of the command but not print anything useful on the console. Now trying some of the 2.6.35-git snapshots before -rc1.