Hi.
The fact that ibv_poll_cq failed indicates that something bad happened.
Usually this failure should create any problem and only the process that
had the problem is being
effected from this.
I personally think that the ib_* performance tools are better to check
the performance of your subnet.
I will be happy if you'll answer the following questions:
Is this error is consistent?
Can you please send me the output of the ibv_devinfo of your machines?
Did you have any error message in the /var/log/messages when you saw
this error?
thanks
Dotan
Murray Smigel wrote:
Hi,
I am running OFED-3.0 using ConnectX adapters in a two machine direct
connect mode.
Most of the various pingpong tests seem ok, but when I run
ibv_srq_pingpong -s 500 -n 1000
I get poll "CQ failed -2" when I start up the client side. Smaller
values of -s worked fine.
Once this happens, no other pingpong tests seem to work.
I have then unloaded all the ib_* mlmx_* and iw_* modules, reloaded
them and things still
fail. I have to reboot the machines to get things back.
1) Is there a cleaner way to recover from this situation?
2) Is the initial failure an indication that something else is wrong?
3) Is the -s 1 latency I see with ibv_rc_pingpong of ~7 microseconds
reasonable?
Thanks,
murray smigel
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