[openib-general] OpenSM causes kernel trap

[Sean Hefty]

Sean Hefty wrote:
> I don't see anything off there either.  Timeouts seem to work fine with 
> CM testing, so I'm guessing that the issue is somewhere in user_mad.c.  
> I'm trying to see if there's anything wrong in ib_umad_write() that 
> might cause it to crash on the completion.

Re-testing with grmpp, I didn't hit any issues running with or without RMPP. 
ib_umad_write() can be cleaned up a little, but the only bug I saw was accessing 
packet->length after calling ib_post_send_mad().  The send_handler() will free 
the packet, so there's a race there.  This doesn't seem related to this crash 
though.

- Sean