All threads hang after a certain period of time

[rsmrostov]

I am running an older version of teststand - after some time executing all of my sequences are hanging.  The size of reports is small ~168kb, test stand gui is responsive - all threads are stuck in one thread.

Any ideas?

I am running a modified version of a parallel model with TS4.2 ( i know old) and never seen this type of behavior.

[JL@NI]

rsmrostov-

Has anything changed in your software or hardware setup recently that may coincide with this behavior surfacing?

-Jeff

[rsmrostov]

No, runs for about 1/2 hour than everything freezes. This behaviour is constistent also...May be I am overflowing the buffer, but every write vi clears the serial buffer, so I shouldn't be.

when I try opening MAX and expanding the devices - it says driver hung up, looks like the 6008 card's drivers are hanging.

[JL@NI]

Are you able to troubleshoot with NI I/O Trace to observe the behavior of the driver calls while this behavior occurs?

-Jeff

[Norbert_B]

Are you using a laptop? It sounds like USB power saving configuration of 30 minutes which will essentially kill the interface to the USB devices. That can lead to driver hangs.

Norbert

[rsmrostov]

Wasn't able to do that, as this would hang the system right up.  I remembered that it is the Usb->Serial Driver situation, that causes grief to just about everyone using it.  I have disabled powering the unit up and down, while the serial connection is enabled, added a few delays to cushion opening and closing the port - seems to be running ok now.