From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexei Colin Subject: sungem on PowerMac G4: RX MAC fifo overflow Date: Fri, 12 Mar 2010 23:17:35 -0500 Message-ID: <9fa5f2891003122017x72c92682md32c62e272f64380@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: netdev@vger.kernel.org Return-path: Received: from mail-bw0-f209.google.com ([209.85.218.209]:49354 "EHLO mail-bw0-f209.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758800Ab0CMER4 (ORCPT ); Fri, 12 Mar 2010 23:17:56 -0500 Received: by bwz1 with SMTP id 1so1600146bwz.21 for ; Fri, 12 Mar 2010 20:17:55 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: Hi, Any help on this issue would be greatly appreciated. I am emailing netdev because I couldn't find anything relevant online (except ancient inconclusive reports of the same error message). Issue: system loses Ethernet connectivity after several hours usually or sooner occasionally. This message gets written to the log multiple times: eht0: RX MAC fifo overflow smac[] Machine: PowerMac G4 (no more firmware updates applicable) Ethernet: 0002:20:0f.0 Ethernet controller: Apple Computer Inc. UniNorth GMAC (Sun GEM) (rev 01) System: Linux 2.6.31-19-powerpc #56-Ubuntu Thu Jan 28 00:50:48 UTC 2010 GNU/Linux Driver: sungem (srcversion: 9C4DDFB8D2201E852413F4F) I'd like to think that it started after I updated to Ubuntu 9.10 (different version of sungem), but booting into 2.6.28-6-powerpc (after the dist upgrade, though) the same is observed. This does bring back the network: ifdown eth0; rmmod sungem; modprobe sungem; ifup eth0 (I never tried without reloading the module) Please let me know if you would like me to get debugging info and which. Thank you in advance! Regards, Alexei