From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: net-2.6.22 UDP stalls/hangs Date: Mon, 23 Apr 2007 13:27:19 -0700 Message-ID: <20070423132719.b7cf1c9e.akpm@linux-foundation.org> References: <20070423130734.d3d90b20.akpm@linux-foundation.org> <20070423.131810.78710074.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: David Miller Return-path: Received: from smtp1.linux-foundation.org ([65.172.181.25]:59813 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752897AbXDWU1X (ORCPT ); Mon, 23 Apr 2007 16:27:23 -0400 In-Reply-To: <20070423.131810.78710074.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon, 23 Apr 2007 13:18:10 -0700 (PDT) David Miller wrote: > From: Andrew Morton > Date: Mon, 23 Apr 2007 13:07:34 -0700 > > > The interesting bit is: > ... > > I think I saw the same problem maybe 1.5 weeks ago on this machine, but I > > didn't have time to investigate further. So it's not some recent thing. > > My initial reaction is that DNS responses are being lost or dropped > for some reason. Plausible. I'll try booting it with the ethernet unplugged. > Please run tcpdump on the network while this machine comes up and > see if DNS requests and replies are going back and forth > correctly. hm. That would require a hub and rather a lot of head-scratching. > Also, please indicate what kind of network card is in this computer. e1000: 05:00.0 Ethernet controller: Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper) (rev 01)