Issue

• InfiniBand ibX interface is seen dropping packets on transmit in /proc/net/dev (ifconfig):

$ cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo: 1451006660 1579443    0    0    0     0          0         0 1451006660 1579443    0    0    0     0       0          0
  eth0: 420887190 1854186    0    0    0     0          0      1940 10218769032 7474557    0    0    0     0       0          0
   ib0: 6718343266 5010814    0    0    0     0          0         0 5431261650 5044342    0   36    0     0       0          0

$ ifconfig ib0
ib0       Link encap:InfiniBand  HWaddr 10:2F:E5:44:EE:19:00:00:00:00:00:00:00:00:00:00:00:00:00:00  
          inet addr:192.168.0.10  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:65520  Metric:1
          RX packets:5010814 errors:0 dropped:0 overruns:0 frame:0
       -> TX packets:5044342 errors:0 dropped:36 overruns:0 carrier:0 <-
          collisions:0 txqueuelen:256 
          RX bytes:6718343266 (6.2 GiB)  TX bytes:5431261650 (5.0 GiB)