[ofa-general] ibv_rc_pingpong hangs with forks

[Roman Kononov]

Hello,

The attached modification to ibv_rc_pingpong makes it never complete.

Forking seems to do something bad. I noticed that forking right after 
ibv_post_recv() "cancels" the posted WR (as if it was never issued): sender 
keeps retrying.

Is it expected behavior or a bug?

This happens with ConnectX MT25418 and InfiniHost MT25208 adapters.

Extracted from OFED-1.4.tgz:
libibverbs-1.1.2
libmlx4-1.0
libmthca-1.0.5

Kernel: 2.6.30.5 x86_64 SMP

Roman Kononov

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