[openib-general] Re: ib0: ipoib_ib_post_receive failed for buf 111 ib0: failed to allocate receive buffer

[Roland Dreier]

    Helen> Roland, Thank you for your response.  That fixed my initial
    Helen> buffer allocation failure.  After we tuned the Lustre and
    Helen> reran same IOZONE tests again, we got the following
    Helen> problem.  Was there an actual network interrupt? If so, the
    Helen> problem is not obvious now; the two nodes are pinging over
    Helen> IPoIB.  Please advice.

That's very odd.  This message:

    Helen> NETDEV WATCHDOG: ib0: transmit timed out
    Helen> ib0: transmit timeout: latency 1846

says that we are not seeing send completions from the HCA.  However,
are you saying that even when you are seeing this message, ping over
IPoIB is working?

 - R.