From mboxrd@z Thu Jan 1 00:00:00 1970 From: Or Gerlitz Subject: Re: 3.10.0-rc2 mlx4 not receiving packets for some multicast groups Date: Sat, 25 May 2013 22:41:39 +0300 Message-ID: References: <20130524154931.GA9245@sbohrermbp13-local.rgmadvisors.com> <20130524163446.GC9245@sbohrermbp13-local.rgmadvisors.com> <20130525151347.GB25744@lintop.rgmadvisors.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: netdev@vger.kernel.org, Hadar Hen Zion , Amir Vadai To: Shawn Bohrer Return-path: Received: from mail-qc0-f179.google.com ([209.85.216.179]:64723 "EHLO mail-qc0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757816Ab3EYTll (ORCPT ); Sat, 25 May 2013 15:41:41 -0400 Received: by mail-qc0-f179.google.com with SMTP id e1so2927373qcx.24 for ; Sat, 25 May 2013 12:41:40 -0700 (PDT) In-Reply-To: <20130525151347.GB25744@lintop.rgmadvisors.com> Sender: netdev-owner@vger.kernel.org List-ID: On Sat, May 25, 2013 at 6:13 PM, Shawn Bohrer wrote: [...] > 5. Debugging I noticed that tcpdump on machine #1 or #2 caused them to > suddenly receive data, and simply putting the interface in promiscuous > mode had the same result. I rebooted both machine #1 and #2 several > times and each time they had the same issue. I then rebooted them > back into 3.4 and they both functioned as expected and received data > on all 350 groups. Rebooted them both back into 3.10 and they were > both still broken. This is when I sent my initial email to netdev. [..] Shawn, thanks for all the details, just one small confirmation, when you moved from 3.4 to 3.10 have you done ANY change to your app? e.g do you still use the same QP type (UD) or moved to RAW PACKET? Or.