blue screen

[Chris M. Wagner]

We communicate with network analyzers of HP and Rhode&Schwarz.
We use the functions "Read GPIB" and "Write GPIB" for communication.

After a while of exicution all of our VI's crash the computer with a
blue-screen:
*** STOP: 0x0000000A (0x00000000,0x00000002,0x00000001,0xFC735CEE)
IRQL_NOT_LESS_OR_EQUAL*** Address fc735cee has base at fc72c000 - afd.sys

The VI's do NOT crash, when we rename the afd.sys, or when we start the
computer without a network-connection.

This is our system: Windows NT (V4.00.1381/SP6a), GPIB NI488.2 (V1.6),
LabVIEW V5.1f1.

We have told this problem to the NI-Support, and we have made a lot of
tests:
- no network - no crash (our network is very big!)
- different types of computers => crash
- no IRQ-sharing => crash
-
Windows 95 => NO CRASH
- we have tried an other network => NO CRASH (it seems so, that we only have
this problem in our network)
- we tested our VI's with a NI-instrument simulator => crash

The whole list of tests is very long, but in the end, we (and the
NI-support) didn't find a solution for our problem.

Has anybody an idea to find a solution?

[Lenin]

I had a similar problem some time ago with a serial communicatin
application. At the end we found that there was an IRQ conflict. It
seems that P&P and especially IRQ-Managment under NT is a dangerous
thing. Sometimes there are IRQ's used but not listed in the system
diagnostics. For instance the IRQ used by the graphics controller is
often not listed. Be sure (maybe configure manually) that there are now
interrupt conflicts.

I had the same sympthoms, sometimes the application worked for hours,
sometimes only for minutes before blue screen. At the end i found that
two COM-Ports used the same interrupt. This was not listed in the system
diagnostics!

Good Luck
Torsten

"Chris M. Wagner" schrieb:
>
> We communicate with network analyzers of HP and Rhode&Schwarz.
> We use the functions "Read GPIB" and "Write GPIB" for communication.
>
> After a while of exicution all of our VI's crash the computer with a
> blue-screen:
> *** STOP: 0x0000000A (0x00000000,0x00000002,0x00000001,0xFC735CEE)
> IRQL_NOT_LESS_OR_EQUAL*** Address fc735cee has base at fc72c000 - afd.sys
>
> The VI's do NOT crash, when we rename the afd.sys, or when we start the
> computer without a network-connection.
>
> This is our system: Windows NT (V4.00.1381/SP6a), GPIB NI488.2 (V1.6),
> LabVIEW V5.1f1.
>
> We have told this problem to the NI-Support, and we have made a lot of
> tests:
> - no network - no crash (our network is very big!)
> - different types of computers => crash
> - no IRQ-sharing => crash
> - Windows 95 => NO CRASH
> - we have tried an other network => NO CRASH (it seems so, that we only have
> this problem in our network)
> - we tested our VI's with a NI-instrument simulator => crash
>
> The whole list of tests is very long, but in the end, we (and the
> NI-support) didn't find a solution for our problem.
>
> Has anybody an idea to find a solution?

--
Torsten Levin Tel.: ++49-(0)89-72495-451
Kayser-Threde GmbH Fax: ++49-(0)89-72495-291
Perchtinger Str. 3 mailto:TL@kayser-threde.de
D-81379 M�nchen http://www.kayser-threde.de