netdev - RX overrun errors building on several of our hosts

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Message-ID: <DM2PR07MB670C5AE859AC24DB9AAF869F1770@DM2PR07MB670.namprd07.prod.outlook.com>
Date:	Mon, 3 Aug 2015 22:38:01 +0000
From:	Dan Finn <Dan.Finn@...nsource.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RX overrun errors building on several of our hosts

After implementing a new monitoring tool I've noticed that several of our physical servers have increasing RX errors, all seem to be classified as overruns.

The interfaces are Broadcom Corporation BCM57840 NetXtreme II 10 Gigabit Ethernet (rev 11) and we are using the bnx2x driver.  The are configured in a bond0 using mode 0 or balance-rr.  We are not seeing any errors on the switch and my guess is that this  is either a config issue or driver problem since it's happening on multiple servers.  All the interfaces appear to be connected at 10 gig full duplex.  The servers are Dell M620s.   I've gathered as much related info as I could think of that would be helpful,  it can be found in this paste:

http://pastebin.centos.org/31716/

I'm not entirely sure where to look next, any help would be much appreciated.

Thanks,
Dan
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