From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: ixgbe funkiness after OOM Date: Tue, 08 Dec 2009 22:57:49 -0800 Message-ID: <4B1F4A6D.1000200@candelatech.com> References: <4B1EEB86.4030903@candelatech.com> <1260341240.2239.18.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: NetDev To: Peter P Waskiewicz Jr Return-path: Received: from mail.candelatech.com ([208.74.158.172]:49071 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752705AbZLIG5p (ORCPT ); Wed, 9 Dec 2009 01:57:45 -0500 In-Reply-To: <1260341240.2239.18.camel@localhost> Sender: netdev-owner@vger.kernel.org List-ID: On 12/08/2009 10:47 PM, Peter P Waskiewicz Jr wrote: >> At this point, there is 8GB of free RAM, and no obvious OOM issues showing up in the logs. >> >> It looks like error -12 means: >> >> IXGBE_ERR_MASTER_REQUESTS_PENDING >> > > We have a fix coming for this issue. Basically we have PCIe > transactions that haven't completed when a reset shows up, and are > wedged in the PCIe block. We have a way to whack the hardware the right > way to get these pending transactions cleared, which allows the device > to finish its reset correctly. > > I'll try and get that patch fast-tracked through our testing. But if > this issue is easily reproducible for you, I can send you the patch in > the meantime to see if it helps your situation, while we finish our test > pass and push to netdev. I've had several other NIC lockups that appear similar, but I didn't look at them so closely. I'd be happy to test a patch if you have one handy. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com