From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id D13FF6B003D for ; Fri, 27 Feb 2009 01:10:01 -0500 (EST) Received: from m3.gw.fujitsu.co.jp ([10.0.50.73]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id n1R69vhc018515 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Fri, 27 Feb 2009 15:09:58 +0900 Received: from smail (m3 [127.0.0.1]) by outgoing.m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 6087345DD7F for ; Fri, 27 Feb 2009 15:09:57 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (s3.gw.fujitsu.co.jp [10.0.50.93]) by m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 3F93445DD78 for ; Fri, 27 Feb 2009 15:09:57 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 27DD41DB803E for ; Fri, 27 Feb 2009 15:09:57 +0900 (JST) Received: from m108.s.css.fujitsu.com (m108.s.css.fujitsu.com [10.249.87.108]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id D1FCB1DB8038 for ; Fri, 27 Feb 2009 15:09:56 +0900 (JST) Date: Fri, 27 Feb 2009 15:08:41 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [Bugme-new] [Bug 12785] New: kswapd block the whole system by IO blaster in some case Message-Id: <20090227150841.b7269557.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20090226212918.fce45757.akpm@linux-foundation.org> References: <20090226212918.fce45757.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Rik van Riel , Lee Schermerhorn , KOSAKI Motohiro , bugme-daemon@bugzilla.kernel.org, crackevil@gmail.com, linux-mm@kvack.org List-ID: On Thu, 26 Feb 2009 21:29:18 -0800 Andrew Morton wrote: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > (uh-oh) > > On Thu, 26 Feb 2009 21:20:46 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote: > > > http://bugzilla.kernel.org/show_bug.cgi?id=12785 > > > > Summary: kswapd block the whole system by IO blaster in some case > > Product: Memory Management > > Version: 2.5 > > KernelVersion: 2.6.28.4 > > Platform: All > > OS/Version: Linux > > Tree: Mainline > > Status: NEW > > Severity: low > > Priority: P1 > > Component: Other > > AssignedTo: akpm@osdl.org > > ReportedBy: crackevil@gmail.com > > > > > > Distribution:debian lenny with some experimental packages > > Hardware Environment:ThinkPad SL 400 7DC with 2G memery > > Software Environment:no swap partition,kernel with 4G memery support > > Problem Description: > > Some day, my box dived into a block while HDLED was blinking. > > I switched to console from gdm, tried iotop by long waiting and found the > > killer was kswapd. > > In "top" output, free memory is almost 50M.The most memory is cached by swap. > > The system blocked even shutdown command wasn't effective.The box had been > > killed by pressing then power button. BTW, pages can be SwapCache even when there are no swap partition ? Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org