Tom> I'm OK with a work-around in the near term. BTW, how do we Tom> correlate libibverbs 1.x with cat Tom> /sys/class/infiniband/verbs/abi_version? abi_version is the ABI exported by the kernel -- all up-to-date versions of libibverbs (1.0.x and 1.1.x) should be able to cope with all kernel versions. So there's not really a connection. - R.