[ofa-general] ib_rdma_bw - memory leaks?

[Sumit Panchasara]

I am seeing Memory Leaks in ib_rdma_bw application at below places when ran
with valgrind tool:

1. Memory allocated by aspintf() is not freed, as it goes on heap, caller
should call "free" after done with the string.

2. Memory allocated by remote destination filed (struct pp_data *) is not
freed.

3. rdma_create_event_channel() calls ucma_init() but
rdma_destroy_event_channel() does not call ucma_cleanup(), this results into
memory leak at provider's library since it does not call ibv_close_device()
and thus unable to do *->free_context().

4. Memory allocated for (struct cma_id_private *) at
RDMA_CM_EVENT_CONNECT_REQUEST event is not getting freed. It is calling
rdma_destroy_id but that was for rdma_create_id. Thus one block of
cm_id_private still remains allocated.

This accounts to ~533 bytes in each iteration. 

Am I observing correctly?

Commands used:
server: ib_rdma_bw -p 5001 -s 65536 -t 500 -n 5000 -c
client: ib_rdma_bw -p 5001 -s 65536 -t 500 -n 5000 -c <server_ip>

Thanks,

Sumit Panchasara
Embedded Engineer - eInfochips Ltd., India.
www.einfochips.com



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