From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 27 Apr 2005 20:06:31 +0100 (BST) Received: from embeddededge.com ([IPv6:::ffff:209.113.146.155]:41220 "EHLO penguin.netx4.com") by linux-mips.org with ESMTP id ; Wed, 27 Apr 2005 20:06:16 +0100 Received: from [192.168.253.28] (tibook.embeddededge.com [192.168.253.28]) by penguin.netx4.com (8.12.8/8.12.9) with ESMTP id j3RJ0Lfg002290; Wed, 27 Apr 2005 15:00:21 -0400 In-Reply-To: <1114627785.17008.21.camel@SillyPuddy.localdomain> References: <1114505009.11315.37.camel@mini.intra> <1114627785.17008.21.camel@SillyPuddy.localdomain> Mime-Version: 1.0 (Apple Message framework v622) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <4bf8c757c3a4d32177ab90b92eace823@embeddededge.com> Content-Transfer-Encoding: 7bit Cc: linux-mips@linux-mips.org, Pete Popov , Herbert Valerio Riedel From: Dan Malek Subject: Re: iptables/vmalloc issues on alchemy Date: Wed, 27 Apr 2005 15:06:00 -0400 To: Josh Green X-Mailer: Apple Mail (2.622) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 7804 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: dan@embeddededge.com Precedence: bulk X-list: linux-mips On Apr 27, 2005, at 2:49 PM, Josh Green wrote: > ...... I was > planning on doing some additional gdb debugging of the failure > (especially the initial large MMAP attempt by iptables, which was 1.5GB > in my case). Oh wait .... I found a bug a while ago from someone trying to load large modules. There is a problem if the kernel grows to need additional PTE tables, the top level pointers don't get propagated correctly and subsequent access by a thread that didn't actually do the allocation would fail. I'm looking into this, including your past message about 64-bit PTEs. Thanks. -- Dan