Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264052AbTE0TWC (ORCPT ); Tue, 27 May 2003 15:22:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264097AbTE0TWC (ORCPT ); Tue, 27 May 2003 15:22:02 -0400 Received: from adsl-67-122-203-155.dsl.snfc21.pacbell.net ([67.122.203.155]:16064 "EHLO ext.storadinc.com") by vger.kernel.org with ESMTP id S264052AbTE0TVx (ORCPT ); Tue, 27 May 2003 15:21:53 -0400 Message-ID: <3ED3BDCE.4010200@storadinc.com> Date: Tue, 27 May 2003 12:34:38 -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 , Andrea Arcangeli , 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> <20030527182547.GG3767@dualathlon.random> <200305272039.18330.m.c.p@wolk-project.de> <3ED3B5CA.7050001@storadinc.com> <3ED3B899.6070804@storadinc.com> 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: 2193 Lines: 88 Marcelo Tosatti wrote: > >On Tue, 27 May 2003, manish wrote: > >>Marcelo Tosatti wrote: >> >>>On Tue, 27 May 2003, manish wrote: >>> >>>>Marc-Christian Petersen wrote: >>>> >>>>>On Tuesday 27 May 2003 20:33, Marcelo Tosatti wrote: >>>>> >>>>>Hi Marcelo, >>>>> >>>>>>It seems your "fix-pausing" patch is fixing a potential wakeup >>>>>>miss, right? (I looked quickly throught it). Could you explain me the >>>>>>problem its trying to fix and how? >>>>>> >>>>>Please have also a look here: >>>>> >>>>>http://hypermail.idiosynkrasia.net/linux-kernel/archived/2002/week45/0305.html >>>>> >>>>>ciao, Marc >>>>> >>>>Hello ! >>>> >>>>I applied the fix-pausing-2 patch to the 2.4.20 kernel. This time on, >>>>the stack trace: >>>> >>>>sys_write >>>>generic_file_write >>>>ext2_get_group_desc >>>>bread >>>>__wait_on_buffer >>>>schedule >>>> >>>Huh? You mean bonnie still deadlocks or ? >>> >>At the time the processes get stuck: >> >> >>[root@dyn-10-123-130-235 vm]# more /proc/meminfo >> total: used: free: shared: buffers: cached: >>Mem: 3709870080 3699126272 10743808 0 18313216 3531255808 >>Swap: 1077501952 0 1077501952 >>MemTotal: 3622920 kB >>MemFree: 10492 kB >>MemShared: 0 kB >>Buffers: 17884 kB >>Cached: 3448492 kB >>SwapCached: 0 kB >>Active: 25252 kB >>Inactive: 3445344 kB >>HighTotal: 2752512 kB >>HighFree: 2120 kB >>LowTotal: 870408 kB >>LowFree: 8372 kB >>SwapTotal: 1052248 kB >>SwapFree: 1052248 kB >> > >Ok, so just to confirm: You're still getting pauses with Andrea's patches >but no hangs anymore? > >Correct? > Hi Marcelo, I have applied Andrea's patch to two kernels: 1. Stock 2.4.20 2. 2.4.20 with the io_request_lock removed. The tests on the first one are still going. The tests on the second one showed processes getting stuck for long times (> 5 minutes) and not paused ... 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/