From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Trippelsdorf Subject: Re: Network hangs on current git kernel Date: Sat, 2 Jun 2012 19:16:58 +0200 Message-ID: <20120602171658.GA336@x4> References: <20120602082503.GC329@x4> <1338630610.2760.1695.camel@edumazet-glaptop> <20120602105747.GB28769@electric-eye.fr.zoreil.com> <1338635703.2760.1696.camel@edumazet-glaptop> <20120602112334.GA10145@x4> <1338652120.2760.1705.camel@edumazet-glaptop> <20120602163437.GA16598@x4> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Francois Romieu , netdev@vger.kernel.org To: Eric Dumazet Return-path: Received: from ud10.udmedia.de ([194.117.254.50]:59636 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932981Ab2FBRRB (ORCPT ); Sat, 2 Jun 2012 13:17:01 -0400 Content-Disposition: inline In-Reply-To: <20120602163437.GA16598@x4> Sender: netdev-owner@vger.kernel.org List-ID: On 2012.06.02 at 18:34 +0200, Markus Trippelsdorf wrote: > On 2012.06.02 at 17:48 +0200, Eric Dumazet wrote: > > On Sat, 2012-06-02 at 13:23 +0200, Markus Trippelsdorf wrote: > > > On 2012.06.02 at 13:15 +0200, Eric Dumazet wrote: > > > > On Sat, 2012-06-02 at 12:57 +0200, Francois Romieu wrote: > > > > > Eric Dumazet : > > > > > > On Sat, 2012-06-02 at 10:25 +0200, Markus Trippelsdorf wrote: > > > > > [hang] > > > > > > Maybe tell us what NIC it is, that sort of things... > > > > > > > > > > As well as 'ip -s link' and complete dmesg from boot. > > > > > Kernel .config may be. > > > > > > > > yes, and "netstat -s" is always useful > > > > > > It's an ATL1E NIC. The kernel config is attached. > > > > Driver tx completion is buggy, but it should hang forever... > > > > If you ping your local gateway, you also have 'hangs' ? > > Will keep an eye on that. > After all this could well be just a buggy router, that broke in the last > few days by coincidence... And indeed it must be a buggy router: (all pings were collected in parallel) --- heise.de ping statistics --- 128 packets transmitted, 110 received, 14% packet loss, time 127232ms rtt min/avg/max/mdev = 21.684/23.611/49.691/3.211 ms --- 192.168.1.1 (local router) ping statistics --- 126 packets transmitted, 126 received, 0% packet loss, time 125004ms rtt min/avg/max/mdev = 0.095/0.222/0.336/0.060 ms --- localhost ping statistics --- 127 packets transmitted, 127 received, 0% packet loss, time 126001ms rtt min/avg/max/mdev = 0.009/0.029/0.065/0.011 ms Sorry for the noise! -- Markus