[openib-general] List of issues in uverbs

[viswanath krishnamurthy]

I  have attached the firmware version/svn info in the
attachment. 

Here is new list of issues with uverbs

1. ib_cm_destroy_id(cm_id)
    hangs (does return to the caller)
    Is there a particular shutdown sequence
    that needs to be followed ? Is there a trace/debug
    I can enable ?

2. libmthca library crashes when a server accepts
    lots of new incoming sessions. See log (gdb)
    in the attachment. (It accepts about 170
connections) Looks like a memory allocation issue.

3. Kernel oops when lots of traffic between multiple
   clients and server. Very consistently
   reproducible.  See attachment for details

4. Is there a way to get the Port GUID from
     incoming connection. I can only get the remote
   node guid, but not the port GUID from the CM REQ
    data. This was possible in gen1 stack.


I will look in the rc_ping pong issue and try to
reproduce.


--- Roland Dreier <rolandd at cisco.com> wrote:

>     viswanath> I have the latest openib code on 2.16
> machine, when I
>     viswanath> run the rc pingpong program I get the
> following error
>     viswanath> (The first time it passed, but
> subsequent ones got an
>     viswanath> error, I tried changing the iteration
> count to a large
>     viswanath> number, 100000 after the first time)
> 
> I left "ibv_rc_pingpong -n 100000" running in a loop
> between two of my
> machines with no problems, so there's something
> specific to your setup.
> 
> When you say "latest openib code," what does this
> mean?  Are you
> running something from subversion or a standard
> Linux kernel?  Do you
> have 1-port or 2-port HCAs?  What HCA firmware
> version are you
> running?
> 
>  - R.
> 


		
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