netdev - Re: mlx4_core 0000:05:00.0: event 19 arrived

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Message-ID: <20130614204709.GC7310@sbohrermbp13-local.rgmadvisors.com>
Date:	Fri, 14 Jun 2013 15:47:09 -0500
From:	Shawn Bohrer <sbohrer@...advisors.com>
To:	Or Gerlitz <or.gerlitz@...il.com>
Cc:	netdev@...r.kernel.org, ogerlitz@...lanox.com, amirv@...lanox.com
Subject: Re: mlx4_core 0000:05:00.0: event 19 arrived

On Fri, Jun 14, 2013 at 10:58:48PM +0300, Or Gerlitz wrote:
> On Fri, Jun 14, 2013 at 7:10 PM, Shawn Bohrer <sbohrer@...advisors.com> wrote:
> > I also just remembered that I had set debug_level=1 on mlx4_core and
> > that is likely why I am now seeing these messages.  If these messages
> > are expected and harmless then I'll simply turn off the debug messages.
> 
> probably harmless, but let me check after the weekend and get back to
> you. So you are using only mlx4_en, correct? no IPoIB nor user space
> of your own that deal with QPs, SRQs (Shared Receive Queues) or alike

Actually, I'm receiving UDP multicast using standard sockets, and
occasionally sending multicast UD RoCE.  So in this case we are
managing some of our own QPs and SRQs.  I just reproduced this and see
these messages when I stop my app(s).  My guess is that they come from
the RoCE side of things since I was running a purely UDP workload
earlier and stopping/starting and never saw any of these.

--
Shawn

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