Date: Mon, 10 Jun 2013 16:03:18 +0000 From: Anthony Cornehl <accornehl@gmail.com> To: Julian Stecklina <jsteckli@os.inf.tu-dresden.de> Cc: freebsd-infiniband@freebsd.org Subject: Re: ib1: timing out; N sends not completed Message-ID: <CAAoDvRzFihpPGLBjkE=Gx%2BunbHnfOD06rM88V8vfN3gihsG1AQ@mail.gmail.com> In-Reply-To: <51B5D798.5090008@os.inf.tu-dresden.de> References: <51B5D798.5090008@os.inf.tu-dresden.de>
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On Jun 10, 2013 6:41 AM, "Julian Stecklina" <jsteckli@os.inf.tu-dresden.de> wrote: > > Hello, > > I have two machines connected back-to-back via Infiniband with Mellanox > Infinihost III adapters. One machine runs Linux (Fedora 19) and the > other 9-STABLE. > > I sometimes get: > > ib1: timing out; 47 sends not completed > ib1: timing out; 1 sends not completed > ib1: timing out; 56 sends not completed > > or similar and TCP connections will be stuck after each timeout for a > while. It is relatively easy to reproduce this behavior with NetPIPE. > > Any advice? > > Julian > Hey Julian, Just some questions to try and clarify the issue... - which machine is the OpenSM master running on? - what does your qkey violation count look like when you run a portinfo on the ports? - does the issue persist when a switch is added between the hosts? Cheers!
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