From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: ZONE_NORMAL memory exhausted by 4000 TCP sockets Date: Tue, 07 Nov 2006 06:53:36 +0100 Message-ID: <45501F60.4070606@cosmosbay.com> References: <200611061022.57840.dada1@cosmosbay.com> <200611061433.50912.dada1@cosmosbay.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-kernel@vger.kernel.org, Linux Netdev List Return-path: Received: from sp604005mt.neufgp.fr ([84.96.92.11]:4844 "EHLO smtp.Neuf.fr") by vger.kernel.org with ESMTP id S1754049AbWKGFxc (ORCPT ); Tue, 7 Nov 2006 00:53:32 -0500 In-reply-to: To: Zhao Xiaoming Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Zhao Xiaoming a =E9crit : > On 11/6/06, Eric Dumazet wrote: >> In fact, your kernel has CONFIG_4KSTACKS, kernel thread stacks use 4= K=20 >> instead >> of 8K. >> >> If you want to increase LOWMEM, (and keep 32bits kernel), you can ch= ose a >> 2G/2G user/kernel split, instead of the 3G/1G default split. >> (see config : CONFIG_VMSPLIT_2G) >> >> Eric > Thank you for your advice. I know increase LOMEM could be help, but > now my concern is why I lose my 500M bytes memory after excluding all > known memory cost. Unfortunatly you dont provide very much details. AFAIK you didnt even gave whcih version of linux you run, which program= s you=20 run... You keep answering where you 'lost' your mem, it's quite buging. Maybe some Oracles on this list will see the light for you, before exch= anging=20 100 mails with you ?