From mboxrd@z Thu Jan 1 00:00:00 1970 From: Todd Merritt Subject: Re: ixgbe: panic in =?utf-8?b?aXhnYmVfY2xlYW5fcnhfaXJxKCk=?= Date: Mon, 27 Jul 2009 21:50:31 +0000 (UTC) Message-ID: References: <1248266678.17215.15.camel@localhost.localdomain> <1248338779.17215.23.camel@localhost.localdomain> <1248362493.17215.45.camel@localhost.localdomain> <1248424910.17215.54.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:43667 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751634AbZG0VzE (ORCPT ); Mon, 27 Jul 2009 17:55:04 -0400 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1MVY9u-0001IF-My for netdev@vger.kernel.org; Mon, 27 Jul 2009 21:55:03 +0000 Received: from 150.135.210.16 ([150.135.210.16]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 27 Jul 2009 21:55:02 +0000 Received: from tmerritt by 150.135.210.16 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 27 Jul 2009 21:55:02 +0000 Sender: netdev-owner@vger.kernel.org List-ID: Waskiewicz Jr, Peter P intel.com> writes: > > On Fri, 24 Jul 2009, Jesper Dangaard Brouer wrote: > > > On Thu, 2009-07-23 at 17:21 +0200, Jesper Dangaard Brouer wrote: > > > I'm going to run a test with a no-preempt kernel over night... > > > > The no-preempt kernel has been stable for 17 hours, while running a four > > times 10GbE pktgen load test (using 1024 bytes packets). > > > > Kernel git version (git describe): > > v2.6.31-rc1-932-g8e321c4 > > > > Git ("git log e594e96..8e321c4 drivers/net/ixgbe") reports not changes > > to the ixgbe driver between these two kernel versions. > > Thanks for the additional info Jesper. This is definately a good data > point. I'm not sure where to go with the preemption debugging at this > point with our driver under heavy load. We're still trying to repro here. > I'll keep digging around though in the meantime. > > This is the second preemption-induced bug from ixgbe we've had reported in > a few days. Eek! > We're getting a panic in the same function with the stable version of the ixgbe driver 2.0.38.2-1 on redhat 5 kernel-2.6.18-128.1.10.el5. Is there a dev release of the driver that might have a fix in it ? Thanks, Todd