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

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Message-ID: <20130614155342.GA7310@sbohrermbp13-local.rgmadvisors.com>
Date:	Fri, 14 Jun 2013 10:53:42 -0500
From:	Shawn Bohrer <sbohrer@...advisors.com>
To:	netdev@...r.kernel.org
Cc:	ogerlitz@...lanox.com, amirv@...lanox.com
Subject: mlx4_core 0000:05:00.0: event 19 arrived

I've been testing 3.10-rc5, and while I'm not sure what exactly I was
running at the time or if there were any negative effects, but I just
noticed my dmesg buffer is completely full of the following messages:

...
[137475.687703] mlx4_core 0000:05:00.0: event 19 arrived
[137475.688944] mlx4_core 0000:05:00.0: event 19 arrived
[137475.689673] mlx4_core 0000:05:00.0: event 19 arrived
[137475.697600] mlx4_core 0000:05:00.0: event 19 arrived
[137475.699125] mlx4_core 0000:05:00.0: event 19 arrived
...

This appears to come from drivers/net/ethernet/mellanox/mlx4/eq.c:473

$ ethtool -i eth4
driver: mlx4_en
version: 2.0 (Dec 2011)
firmware-version: 2.11.500
bus-info: 0000:05:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no

I'll see if I can figure out a workload that reproduced the message
later today, but perhaps the message is enough to get some ideas from
the Mellanox folks.

--
Shawn

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