The list that you have posted to is windows.

There is probably a module parameter in Linux with the same name, that you can 
try.

In any case, you need to try another mailing list (probably 
[email protected]<mailto:[email protected]>)

Thanks
Tzachi

From: Tang, Changqing [mailto:[email protected]]
Sent: Monday, September 13, 2010 5:06 PM
To: Tzachi Dar; [email protected]
Subject: RE: How many QPs are used so far?

Tzachi,
               Thanks  for your quick response. Our system is Linux, how do I 
do it?

               Also when ibv_create_qp() fails, is there a way to figure out 
what the reason is (QP limit reached, unable to lock memory, others)? Does 
errno tell us anything?

--CQ

From: Tzachi Dar [mailto:[email protected]]
Sent: Monday, September 13, 2010 10:01 AM
To: Tang, Changqing; [email protected]
Subject: RE: How many QPs are used so far?

Hi,

The number of allowed qps is controlled in the registry.

Before we try to debug your system, I would like to try and change that number 
and see if this will solve your problem.

Can you go to the registry to the 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mlx4_bus\Parameters and 
increase the key that is called LogNumQp?

Please stop and start the mlx4_bus from the device manager and repeat your 
experiment.

Thanks
Tzachi

From: [email protected] 
[mailto:[email protected]] On Behalf Of Tang, Changqing
Sent: Monday, September 13, 2010 4:27 PM
To: [email protected]
Subject: [ofw] How many QPs are used so far?

HI,
               Our application sometimes report ibv_create_qp() error. Our 
system has 69G memory and set lockable memory to unlimited. So I wonder running 
out of QP number is more suspicious than running out of memory.
               Is there a way to query how many QPs are used at the point of 
ibv_create_qp() failure ?

               Thank you in advance.

--CQ
Hewlett-Packard BIS
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