Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264005AbTE0RmW (ORCPT ); Tue, 27 May 2003 13:42:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264012AbTE0RlJ (ORCPT ); Tue, 27 May 2003 13:41:09 -0400 Received: from adsl-67-122-203-155.dsl.snfc21.pacbell.net ([67.122.203.155]:5817 "EHLO ext.storadinc.com") by vger.kernel.org with ESMTP id S264005AbTE0Rkb (ORCPT ); Tue, 27 May 2003 13:40:31 -0400 Message-ID: <3ED3A60E.8040405@storadinc.com> Date: Tue, 27 May 2003 10:53:18 -0700 From: manish User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020408 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Marcelo Tosatti CC: Marc-Christian Petersen , linux-kernel@vger.kernel.org, Carl-Daniel Hailfinger , Christian Klose , William Lee Irwin III Subject: Re: 2.4.20: Proccess stuck in __lock_page ... References: <3ED2DE86.2070406@storadinc.com> <3ED372DB.1030907@gmx.net> <200305271936.34006.m.c.p@wolk-project.de> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1375 Lines: 45 Marcelo Tosatti wrote: >On Tue, 27 May 2003, Marc-Christian Petersen wrote: > >>On Tuesday 27 May 2003 19:27, Marcelo Tosatti wrote: >> >>Hi Marcelo, >> >>>>Following is SysRq-T output for stuck processes during such a pause from >>>>Christian Klose. Only processes in D state are listed for brevity. >>>>Especially the last two call traces are interesting. >>>> >>>A "pause" is perfectly fine (to some extent, of course), now a hang is >>>not. Is this backtrace from a hanged, unusable kernel or ? >>> >>A pause is _not_ perfectly fine, even not to some extent. That pause we are >>discussing about is a pause of the _whole_ machine, not just disk i/o pauses. >>Mouse stops, keyboard stops, everything stops, who knows wtf. >> > >Do you also notice them? > > >>That behaviour is absolutely bullshit for desktop users. For serverusage you >>may not notice it in this dimension (mostly no X so no mouse), but also for a >>server environment this may be very bad. >> > >Agreed. > Hi Marc, With respect to the hangs that you noticed, did the processes complete after a "pause" or did they stay hung (deadlocked)? Thanks Manish - 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/