From owner-freebsd-net@FreeBSD.ORG Fri Mar 21 17:22:19 2014 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4958F491 for ; Fri, 21 Mar 2014 17:22:19 +0000 (UTC) Received: from mail-qc0-x235.google.com (mail-qc0-x235.google.com [IPv6:2607:f8b0:400d:c01::235]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 0197D890 for ; Fri, 21 Mar 2014 17:22:18 +0000 (UTC) Received: by mail-qc0-f181.google.com with SMTP id e9so3091694qcy.26 for ; Fri, 21 Mar 2014 10:22:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=RgsYMf4VG4FYvZVclBpFU9ApjeE9ppd6gMbKdUZD8yI=; b=O8RU9v+21pcQAQDyMWpUjZ87qKQ9205gWwOTxNofc4EUWvKjo/zAKXrpfMmxdPoSxU Byvj94fbghhIL6fBFaYY2JyQMGB6qXHCl7kp2qOgenzQIK3EK9tVin6iykaGIZiK0Rmw lffIcAWME5auPbdAToao45IN2Nq6ULRM/BWtj7Edqh7uZeMlfcFPAJDbAq0F/OHc9k5x ML1el6m9O76e8LrOoZe6TeFqfaOL+PfqggDG40rmpyL4CEhb34jbo5JGtmFHlXY4UaAX ViUz4YpZvrgpwLQHVy+C7pCzRxw3yMbpTdWHPIuV+lFNiy7YRhuzexzGjifFZIY16WSf kwrg== MIME-Version: 1.0 X-Received: by 10.140.29.68 with SMTP id a62mr41708868qga.57.1395422538237; Fri, 21 Mar 2014 10:22:18 -0700 (PDT) Received: by 10.96.79.97 with HTTP; Fri, 21 Mar 2014 10:22:18 -0700 (PDT) In-Reply-To: <7B586D3A-BD6B-40B1-980E-7F9FD4A49F6A@hostpoint.ch> References: <1543350122.637684.1395368002237.JavaMail.root@uoguelph.ca> <34491192-F8EC-45C1-A7C8-61C3EBE5CFBD@hostpoint.ch> <7B586D3A-BD6B-40B1-980E-7F9FD4A49F6A@hostpoint.ch> Date: Fri, 21 Mar 2014 14:22:18 -0300 Message-ID: Subject: Re: 9.2 ixgbe tx queue hang From: Christopher Forgeron To: Markus Gebert Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.17 Cc: FreeBSD Net , Rick Macklem , Jack Vogel X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Mar 2014 17:22:19 -0000 Fair enough. Have you tried disabling tso on the ix's ? That does fix the problem for me, however there is a performance penalty to be paid. I'm now regressing through the ixgbe drivers - I see there's been changes to how the queues are drained between 9.1 - 10.0, will see if the older ixgbe 2.4.8 works under 10.0 On Fri, Mar 21, 2014 at 1:40 PM, Markus Gebert wrote: > > On 21.03.2014, at 15:49, Christopher Forgeron > wrote: > > > However, if you can make a spare tester of the same hardware, that's > > perfect - And you can generate all the load you need with benchmark > > software like iometer, large NFS copies, or perhaps a small replica of > your > > network. Synthetic load is easier to control, and thus easier to > reproduce > > the issue and speed testing. Heck, you may be able to do it all by > looping > > through your two ix adapters and never using an external client. > > > > It's a bit of a pain to setup, but it's worth the effort imo. > > The main problem is, that all the affected systems are blades which are > only connected 1gig. I think that's the main reason we have trouble > reproducing the problem and I cannot change that, because we simply lack > the parts to produce any kind of 10gig connection between blades. So I will > postpone this idea, especially since our problems seem very similar again. > 9.2 or 10.0 does not seem to matter, at least for now. > > > Markus > >