Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758788AbYLPVIe (ORCPT ); Tue, 16 Dec 2008 16:08:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751344AbYLPVIZ (ORCPT ); Tue, 16 Dec 2008 16:08:25 -0500 Received: from main.gmane.org ([80.91.229.2]:44402 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751334AbYLPVIZ (ORCPT ); Tue, 16 Dec 2008 16:08:25 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Bill Davidsen Subject: Re: 2.6.28-rc8 big regression in VM Date: Tue, 16 Dec 2008 16:08:12 -0500 Message-ID: <494818BC.6050505@tmr.com> References: <20081212183810.GA4390@ics.muni.cz> <20081213012115.GA6250@localhost> <20081213095815.GA7143@ics.muni.cz> <20081213140214.GA21627@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org Cc: Lukas Hejtmanek , "linux-kernel@vger.kernel.org" X-Gmane-NNTP-Posting-Host: pool-68-236-142-151.alb.east.verizon.net User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.18) Gecko/20081112 Fedora/1.1.13-1.fc9 pango-text SeaMonkey/1.1.13 In-Reply-To: <20081213140214.GA21627@localhost> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2072 Lines: 39 KVMWu Fengguang wrote: > On Sat, Dec 13, 2008 at 11:58:15AM +0200, Lukas Hejtmanek wrote: >> On Sat, Dec 13, 2008 at 09:21:15AM +0800, Wu Fengguang wrote: >>> I cannot reproduce it on 2.6.28-rc7, compiling 2.6.28-rc8... >>> >>> # free; echo 3 > /proc/sys/vm/drop_caches; free >>> total used free shared buffers cached >>> Mem: 1940 109 1831 0 0 42 >>> -/+ buffers/cache: 66 1873 >>> Swap: 0 0 0 >>> total used free shared buffers cached >>> Mem: 1940 62 1877 0 0 7 >>> -/+ buffers/cache: 55 1884 >>> Swap: 0 0 0 >>> >>>> once the whole memory is eaten by the cache, the system is pretty unusable. >>> What's your kconfig? >> attached. > > OK I'll try it. I cannot produce the bug in my -rc8 configuration yet: > > # free; echo 3 > /proc/sys/vm/drop_caches; free > total used free shared buffers cached > Mem: 1940 906 1033 0 0 761 > -/+ buffers/cache: 144 1795 > Swap: 0 0 0 > total used free shared buffers cached > Mem: 1940 147 1793 0 0 19 > -/+ buffers/cache: 127 1813 > Swap: 0 0 0 > Could the problem be related to him running 2GB memory and you running... well, maybe a patches version of "free?" Or can you really run in 2MB, or am I misreading? -- Bill Davidsen "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot -- 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/