From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: 3.10.0-rc2 mlx4 not receiving packets for some multicast groups Date: Fri, 24 May 2013 09:58:56 -0700 Message-ID: <1369414736.3301.420.camel@edumazet-glaptop> References: <20130524154931.GA9245@sbohrermbp13-local.rgmadvisors.com> <20130524163446.GC9245@sbohrermbp13-local.rgmadvisors.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, Or Gerlitz , Hadar Hen Zion , Rony Efraim , Amir Vadai To: Shawn Bohrer Return-path: Received: from mail-pb0-f44.google.com ([209.85.160.44]:55312 "EHLO mail-pb0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751406Ab3EXQ66 (ORCPT ); Fri, 24 May 2013 12:58:58 -0400 Received: by mail-pb0-f44.google.com with SMTP id wz12so4446501pbc.31 for ; Fri, 24 May 2013 09:58:57 -0700 (PDT) In-Reply-To: <20130524163446.GC9245@sbohrermbp13-local.rgmadvisors.com> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, 2013-05-24 at 11:34 -0500, Shawn Bohrer wrote: > On Fri, May 24, 2013 at 10:49:31AM -0500, Shawn Bohrer wrote: > > I just started testing the 3.10 kernel, previously we were on 3.4 so > > there is a fairly large jump. I've additionally applied the following > > four patches to the 3.10.0-rc2 kernel that I'm testing: > > > > https://patchwork.kernel.org/patch/2484651/ > > https://patchwork.kernel.org/patch/2484671/ > > https://patchwork.kernel.org/patch/2484681/ > > https://patchwork.kernel.org/patch/2484641/ > > > > I don't know if those patches are related to my issues or not but I > > plan on trying to reproduce without them soon. > > I've reverted the four patches above from my test kernel and still see > the issue so they don't appear to be the cause. I suggest adding in tools/testing/selftests/net tests about multicast stuff. It seems many NIC suffer from bugs in this area, especially when dealing with a lot of groups.