From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andre Tomt Subject: Re: Fw: [Bug 201423] New: eth0: hw csum failure Date: Tue, 30 Oct 2018 12:04:13 +0100 Message-ID: <6bf2dc00-ce6e-99a8-202e-1cca4469da67@tomt.net> References: <20181015081519.0bf076bc@xeon-e3> <4693819f-4a76-532f-9b24-d4328183c807@gmail.com> <91545596-f932-8834-f613-feda3edc9b84@tomt.net> <869fbb53-a0a5-95f9-2c77-c3ae3f6d181f@tomt.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: Stephen Hemminger , netdev , rossi.f@inwind.it, Dimitris Michailidis To: Eric Dumazet , Eric Dumazet Return-path: Received: from mail1.ugh.no ([178.79.162.34]:48962 "EHLO mail1.ugh.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727239AbeJ3T5P (ORCPT ); Tue, 30 Oct 2018 15:57:15 -0400 In-Reply-To: <869fbb53-a0a5-95f9-2c77-c3ae3f6d181f@tomt.net> Content-Language: en-US Sender: netdev-owner@vger.kernel.org List-ID: On 30.10.2018 11:58, Andre Tomt wrote: > On 27.10.2018 23:41, Andre Tomt wrote: >> On 26.10.2018 13:45, Andre Tomt wrote: >>> On 25.10.2018 19:38, Eric Dumazet wrote: >>>> >>>> >>>> On 10/24/2018 12:41 PM, Andre Tomt wrote: >>>>> >>>>> It eventually showed up again with mlx4, on 4.18.16 + fix and also >>>>> on 4.19. I still do not have a useful packet capture. >>>>> >>>>> It is running a torrent client serving up various linux distributions. >>>>> >>>> >>>> Have you also applied this fix ? >>>> >>>> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=db4f1be3ca9b0ef7330763d07bf4ace83ad6f913 >>>> >>>> >>> >>> No. I've applied it now to 4.19 and will report back if anything >>> shows up. >> >> Just hit it on the simpler server; no VRF, no tunnels, no >> nat/conntrack. Only a basic stateless nftables ruleset and a vlan >> netdev (unlikely to be the one triggering this I guess; it has only v4 >> traffic). > > I'm currently testing 4.19 with the recomended commit added, plus these > to sort out some GRO issues (on a hunch, unsure if related): > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=a8305bff685252e80b7c60f4f5e7dd2e63e38218 > > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=992cba7e276d438ac8b0a8c17b147b37c8c286f7 > > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=ece23711dd956cd5053c9cb03e9fe0668f9c8894 > > > and I *think* it is behaving better now? it's not conclusive as it could > take a while to trip in this environment but some of the test servers > have not shown anything bad in almost 24h. Sorry, s/some of the/none of the