rx_errors increasing on Mellanox mlx4 network interface

Solution In Progress - Updated -

Issue

  • rx_errors increasing on Mellanox ConnectX mlx4 Infiniband network interface

  • ethtool -S ethX reports rx_errors:

eth5  rx_errors: 3554
  • ifconfig reports errors:
# ifconfig ethX
ethX      Link encap:Ethernet  HWaddr 00:02:C9:aa:bb:cc  
          RX packets:5703388 errors:3736 dropped:0 overruns:0 frame:0
  • netstat reports errors:
# netstat -i
Kernel Interface table
Iface       MTU Met    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eth5       1500   0  5703441   3736      0      0  9955640      0      0      0 BMRU

Environment

  • Red Hat Enterprise Linux Server release 5.6 (kernel-2.6.18-238.1.1.el5)
  • Mellanox Technologies MT26428 ConnectX VPI Infiniband card
  • mlx4_en network driver

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