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

[Roland Dreier]

Basically, you are running out of GFP_ATOMIC memory.  IPoIB's handling
of these allocation errors can definitely be improved, but one thing
you could try in the meantime would be to increase /proc/sys/vm/min_free_kbytes.

 - R.