Error -63043: FPGA disconnects after running for a few seconds

Hello,
    I face the following problem whenever I try to run a FPGA VI directly from my host PC onto my PXI 7831R through the ethernet.
Initially, MAX shows my remote PXI system as 'Connected', and the FPGA VI compiles fine.
But when I hit the 'Run' button, the VI seems to run fine for 3-4 seconds, after which it hangs (screenshot attached). A couple of seconds later, it returns the following message :-
" LabVIEW FPGA called another software component and that component returned the following error
Error code: -63043
NI-RIO FPGA Communications framework: The session is invalid. The target may have reset or been rebooted. Check the network connection and retry the operation. "
The VI continues to run on the FPGA, but I can't control it anymore from my host-PC. Even MAX shows the remote system as disconnected, after this error occurs. All I am left to do is to reboot my host-PC as well as the remote PXI target; to reach the beginning of this problem.
I have checked the NI-RIO settings. Both my host-PC as well as remote PXI system have the same NI-RIO 3.0.0 version installed. I am running LabVIEW 8.6 .
Can anyone help ?
Attachments:
Error Screenshot.JPG ‏89 KB

Hi everyone, I have the same problem regarding the 63043 error code
I´ve simplified my FPGA vi up to a simple write and read program of a port, as shown in the attachment, but I still have the same error.
It´s interesting that the program runs, note in the jpg file that the while loop counter suddenly stops at Numeric=10, it means the program ran 10 iterations. Also the input port succesffully read the pin value, this meas that the program ran properly, but the SBRIO rebooted when Numeric was 10 and the target device disconnected from the project, i wonder why?
The target device is an sbRIO-9632 , serial number 01452AC3 with the following software installed:
NI-RIO 3.4.0 - January 2010
DataSocket for LabVIEW Real-Time 4.7.0
EPICS Server I/O Server 1.6.1
LabVIEW PID and Fuzzy Logic Toolkit 9.0.0
LabVIEW Real-Time 9.0.1
Language Support for Japanese 9.0.1
Language Support for LabVIEW RT 1.0.0.3
Modbus I/O Server 1.6.1
NI-RIO 3.4.0
NI-Serial RT 3.3.4
NI-VISA 4.6
NI-VISA Server 4.6
NI-Watchdog 4.0.1
Network Variable Engine 1.6.1
Run-Time Engine for Web Services 2.0.1
SSL Support for LabVIEW RT 2.0.1
System State Publisher 1.1.0
Variable Client Support for LabVIEW RT 1.6.1
Web Server for LabVIEW RT 2.0.0
Available add-ons:
LabVIEW Control Design and Simulation 9.0.1
However, if I run a program in the RT processor without referencing any vi on the FPGA it runs without problems, it´s only when a file is loaded into the FPGA that the system reboots and the error message appears.
Please help me
leito
Attachments:
error-63043.jpg ‏264 KB

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    127740.502: [GC [PSYoungGen: 340464K->169143K(353792K)] 2980821K->2836693K(8218112K), 0.1914048 secs]
    127741.562: [GC [PSYoungGen: 353783K->166305K(345344K)] 3021333K->2860977K(8209664K), 0.1367291 secs]
    127742.973: [GC [PSYoungGen: 340908K->153430K(349568K)] 3147976K->3124907K(8213888K), 0.1970560 secs]
    127743.946: [GC [PSYoungGen: 328278K->156065K(349568K)] 3299755K->3277928K(8213888K), 0.1868634 secs]
    127745.498: [GC [PSYoungGen: 330183K->156854K(349568K)] 3564442K->3545105K(8213888K), 0.1836370 secs]
    From the log it seemed that the memory usage jumped by 150M to 250M within 1.5 second, even when the user traffic was very light (a couple of page views a second, vs. 10 page views a second at peak). The same app was running fine for many hours on a Windows dev machine in load testing condition with about 300M heapsize. No memory leakage was found so far. (it would be pretty unlikely to have such a large memory leakage without being noticed in dev and testing)
    Thanks for any help.
    Edited by: tuxzilla on Nov 16, 2008 11:43 PM
    Edited by: tuxzilla on Nov 16, 2008 11:46 PM

    A NewSize of 512m seems small for an 8G heap. This would probably cause most objects to be rapidly tenured into the OldGen heap space. (Ultimately depends on your application.) You might consider either using a NewRatio in place of NewSize/MaxNewSize or not use either and instead see how the jvm handles things itself with"-XX:+UseAdaptiveSizePolicy"
    VisualVM is a good graphical tool for watching gc activity.
    NewRatio=1 is the largest you can go for Eden, which will set (Eden and survivor spaces) equal to oldGen space. ie, for 8G, 4g each.
    Watch activity in the gc tool, you will see "sawtooth" activity. If your sawtooth pattern does not maintain a flat profile, then you have in fact have a memory leak.

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