Hey Roland,
I'm experimenting with doing RDMA operations from a child process and I have a question. My application calls
ibv_fork_init() at startup (first thing in main()) and it succeeds, and I see, for instance, that libibverbs has
initialized mm_root. Next my application registers page-aligned memory that is 8KB in size. The memory was allocated
with memalign(). Then the app sets up a connection to an RDMA peer. Next the application calls fork(). The parent
does a wait() and the child does an rdma read operation into this registered memory from a valid mr of the peer. The
read succeeds from the rdma device perspective. But when the child process tries to read the memory (to verify the rdma
operation worked), I get a seg fault.
Q: Am I doing something incorrect here? I can't find much documentation on how
this all should work.
Thanks!
Steve.
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