Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758102AbXKDMsY (ORCPT ); Sun, 4 Nov 2007 07:48:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754484AbXKDMsP (ORCPT ); Sun, 4 Nov 2007 07:48:15 -0500 Received: from hobbit.corpit.ru ([81.13.94.6]:20701 "EHLO hobbit.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754031AbXKDMsO (ORCPT ); Sun, 4 Nov 2007 07:48:14 -0500 Message-ID: <472DBF8C.2060508@msgid.tls.msk.ru> Date: Sun, 04 Nov 2007 15:48:12 +0300 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Icedove 1.5.0.12 (X11/20070607) MIME-Version: 1.0 To: Justin Piszcz CC: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org Subject: Re: 2.6.23.1: mdadm/raid5 hung/d-state References: In-Reply-To: X-Enigmail-Version: 0.94.2.0 OpenPGP: id=4F9CF57E Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 878 Lines: 20 Justin Piszcz wrote: > # ps auxww | grep D > USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND > root 273 0.0 0.0 0 0 ? D Oct21 14:40 [pdflush] > root 274 0.0 0.0 0 0 ? D Oct21 13:00 [pdflush] > > After several days/weeks, this is the second time this has happened, > while doing regular file I/O (decompressing a file), everything on the > device went into D-state. The next time you come across something like that, do a SysRq-T dump and post that. It shows a stack trace of all processes - and in particular, where exactly each task is stuck. /mjt - 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/