Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757912AbYFSAae (ORCPT ); Wed, 18 Jun 2008 20:30:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757653AbYFSAaM (ORCPT ); Wed, 18 Jun 2008 20:30:12 -0400 Received: from rv-out-0506.google.com ([209.85.198.236]:19107 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756579AbYFSAaJ (ORCPT ); Wed, 18 Jun 2008 20:30:09 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=cb+wCGbNoYK9O2+1vQK5T/AssxyA52xp5FtwyUw9s9rnUbodOHO3rhuWCVKcYhdehR h/jTPdGYMho6IhmRBaQzgtnpjZE3OVdRqdZOWn4tFl2ykzpvexEfr5PNnZCdCUJcGU03 IAa6gpnY+hMjBaE1/rR417NVi5gzK7AI3bqC0= Message-ID: Date: Thu, 19 Jun 2008 02:30:08 +0200 From: "=?UTF-8?Q?H=C3=A5kon_L=C3=B8vdal?=" To: "=?UTF-8?Q?Ilpo_J=C3=A4rvinen?=" Subject: Re: [bug] stuck localhost TCP connections, v2.6.26-rc3+ Cc: LKML , Netdev , "Ingo Molnar" , "David S. Miller" , "Rafael J. Wysocki" , "Andrew Morton" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline References: <20080526115628.GA31316@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by alpha.home.local id m5J0Uqfq002846 Content-Length: 1880 Lines: 6 2008/6/11 Ilpo Järvinen :> On Wed, 11 Jun 2008, Håkon Løvdal wrote:>> I do not have any good explanation (bad memory?). When checking the>> copytest003.capture.bz2 file in the http server storage directory>> I get the same results as you. However I also have the original file>> stored still and comparing them with cmp -l gives>> 20558656 124 104>> so obviously a bit has been flipped.>> ...Yeah, which is a bad thing because now we don't know if that same error> causes the TCP stops too.>>> I have now replaced the erroneous file with a good copy, so you should>> be able to download again.>> I'll have a look if there's some common denominator but this whole issue> might well be due to hw failure.> Hi. I tested the old pc with memtest86 and memtest86+ for 16 and 50hours without any errors detected, so apparently the ram is ok. I now just did another test from a freshley booted old pc, standingidle for around 2 hours before I started the testing (no network activitybefore I plugged in the cable just before starting testing). The copying failed after just 2.62GB, so the logs are short andnice. Stored on same server as earlier, new 2008-06-19 directory. Onething I noticed in the dmesg output on the old pc was the following: BUG: unable to handle kernel paging request at virtual address ffff3cffprinting eip: ffff3cff *pde = 00793067 *pte = 00000000Oops: 0000 [#1] PREEMPTModules linked in: ...Pid: 18103, comm: sshd Not tainted (2.6.24-gafd564a8 #4)...Call Trace: [] nf_conntrack_find_get+0x36/0x3a [nf_conntrack] [] nf_conntrack_in+0x135/0x3e8 [nf_conntrack] [] local_bh_disable+0xa/0xb [] _read_lock_bh+0x12/0x1a... BR Håkon Løvdal????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?