Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264015AbTE0R7S (ORCPT ); Tue, 27 May 2003 13:59:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264008AbTE0R57 (ORCPT ); Tue, 27 May 2003 13:57:59 -0400 Received: from adsl-67-122-203-155.dsl.pltn13.pacbell.net ([67.122.203.155]:54202 "EHLO ext.storadinc.com") by vger.kernel.org with ESMTP id S264010AbTE0R4h (ORCPT ); Tue, 27 May 2003 13:56:37 -0400 Message-ID: <3ED3A9D2.4030200@storadinc.com> Date: Tue, 27 May 2003 11:09:22 -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> <200305271936.34006.m.c.p@wolk-project.de> <200305271952.34843.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: 1743 Lines: 73 Marcelo Tosatti wrote: > >On Tue, 27 May 2003, Marc-Christian Petersen wrote: > >>On Tuesday 27 May 2003 19:47, Marcelo Tosatti wrote: >> >>Hi Marcelo, >> >>>>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? >>> >>I do, people I know do also, numbers of those people only _I_ know are about >>~30. I've reported this problem over a year ago while 2.4.19-pre time. >> > >Can you please try to reproduce it with -aa? > >>>>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. >>> Hello ! After several tests, I have noticed that I can produce this problem easily when my bdflush settings are: 30 50 32 100 50 300 60 0 0 and it occurs very less frequently when my settings are: 2 50 32 100 50 300 1 0 0 Right now, I noticed the following stack trace for one such stuck process: sys_read generic_file_read do_generic_file_read page_cache_read __alloc_pages balance_classzone try_to_free_pages shrink_caches shrink_cache try_to_release_page try_to_free_buffer sync_page_buffers wait_on_buffer __wait_on_buffer schedule 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/