[ofa-general] How to get a thread out of the ib_cm_get_event?

Bub Thomas thomas.bub at thomson.net
Thu Aug 2 00:51:44 PDT 2007


Sean,

our application is using OFED 1.1 under SLES10.

It is a point to point IB connection from a high speed image scanner to a workstation. 

The application is out in the market for about a year.

Now I get complains from the field that they do have dead pthreads hanging around that are stuck in the ib_cm_get_event call.

For your explanation I'm creating a new pthread for every new attempt to connect from the workstation to the image scanner.

This will happen only when one does re-power the image scanner while having a connection established, this might happen often as once a week to once a month.

The reason for the complains now are that the thread's hanging in the ib_cm_get_event consume system resources and might block the system after some 40 power cyles.

They don't want/can't restart the workstation application in order to get the old phreads destroyed.

 

So my question is: How can I get a pthread out of the ib_cm_get_event call?

 

Thanks in advance for your help

 

Thomas Bub 

................................................................................
Thomas Bub
Senior Software Engineer
Grass Valley Germany GmbH
Brunnenweg 9
64331 Weiterstadt, Germany
Tel: +49 6150 104 147
Fax: +49 6150 104 656
Email: Thomas.Bub at thomson.net
www.GrassValley.com 
______________________________________________

Geschäftsführung: Hans-Joachim Krink, Roger Keller,
Rainer Sturm, Edgar Kleffmann
Sitz der Gesellschaft: Weiterstadt
Registergericht: Darmstadt - HRB 8616

 

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