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<p class=MsoNormal>The list that you have posted to is windows.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>There is probably a module parameter in Linux with the same
name, that you can try.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In any case, you need to try another mailing list (probably <a
href="mailto:general@lists.openfabrics.org">general@lists.openfabrics.org</a>)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks<o:p></o:p></p>
<p class=MsoNormal>Tzachi<span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Tang, Changqing
[mailto:changquing.tang@hp.com] <br>
<b>Sent:</b> Monday, September 13, 2010 5:06 PM<br>
<b>To:</b> Tzachi Dar; ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: How many QPs are used so far?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Tzachi,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>
Thanks for your quick response. Our system is Linux, how do I do it?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>
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?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>--CQ<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Tzachi Dar
[mailto:tzachid@mellanox.co.il] <br>
<b>Sent:</b> Monday, September 13, 2010 10:01 AM<br>
<b>To:</b> Tang, Changqing; ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: How many QPs are used so far?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Hi,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>The number of allowed qps is
controlled in the registry. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Before we try to debug your
system, I would like to try and change that number and see if this will solve
your problem.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>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? <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Please stop and start the
mlx4_bus from the device manager and repeat your experiment.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Tzachi<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
ofw-bounces@lists.openfabrics.org [mailto:ofw-bounces@lists.openfabrics.org] <b>On
Behalf Of </b>Tang, Changqing<br>
<b>Sent:</b> Monday, September 13, 2010 4:27 PM<br>
<b>To:</b> ofw@lists.openfabrics.org<br>
<b>Subject:</b> [ofw] How many QPs are used so far?<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>HI,<o:p></o:p></p>
<p class=MsoNormal>
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.<o:p></o:p></p>
<p class=MsoNormal>
Is there a way to query how many QPs are used at the point of ibv_create_qp()
failure ?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>
Thank you in advance.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>--CQ<o:p></o:p></p>
<p class=MsoNormal>Hewlett-Packard BIS<o:p></o:p></p>
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