From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lennert Buytenhek Subject: Re: ep93xx_eth stopps receiving packages Date: Sun, 2 May 2010 12:43:50 +0200 Message-ID: <20100502104350.GS4586@mail.wantstofly.org> References: <20100419173813.7750395f4fkkmrk0@limpopo.deheime.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org To: Stefan Agner Return-path: Received: from fw.wantstofly.org ([80.101.37.227]:41537 "EHLO mail.wantstofly.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755663Ab0EBLP4 (ORCPT ); Sun, 2 May 2010 07:15:56 -0400 Content-Disposition: inline In-Reply-To: <20100419173813.7750395f4fkkmrk0@limpopo.deheime.ch> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, Apr 19, 2010 at 05:38:13PM +0200, Stefan Agner wrote: > I'm using Linux 2.6.32.9 on a technologic systems TS-7250 SBC board, with > the ep93xx_eth driver for networking. On three identical, but independent > systems I noted that the system is unreachable after a while. On a serial > terminal I noted that only the TX counter counts onward, RX stays where it > is, > no matter if i try to ping from or to the system. Wireshark tells me exactly > that too: I see helpless ARP requests which gets answered, but no ICMP. The > system doesnt receive the ARP requests, and just sends another one. (So does the board or does it not respond to ARP requests for its IP?) > With a simple program which sends small packages in a fast pace I can > reproduce the problem after several seconds (additional CPU load seem to > provoke the problem even more). Remove and replug the network cable doesn't > solve the problem, but ifup/down does. I don't see any messages in dmesg, > memory is still available. Do you see interrupts increasing in /proc/interrupts when this happens?