bnx2x: device stats sometimes go backwards

Solution Unverified - Updated -

Environment

  • Red Hat Enterprise Linux 6.3
  • kernel version: 2.6.32-279.el6.x86_64
  • bnx2x driver version: 1.72.00-0
# ethtool -i eth2
driver: bnx2x
version: 1.72.00-0
firmware-version: bc 6.2.10 phy baa0.105
bus-info: 0000:06:00.0

Issue

  • When routing netperf traffic across bnx2x interfaces under load (~160Mbps), the RX/TX byte counts go backwards several times a minute as seen by /proc/net/dev. Sometimes the RX will decrease, other times the TX.

Resolution

  • The BZ related to this issue has been closed with the following errata release:

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