RT ocasional error

[TerraNova]

Hi evry! Sometimes, a kind of a strange RT system behaviour appears: while working it spits out the following: Rebooting system due to exception 0xC0000005 Error: disk cache flush thread failed to shut down ...and nothing happens, except every RT activity stops What could be a reason of such error? Thanx in adv. P.S.: All the vers are 8.2.1

[dan_u]

Just wanted to add that I also sometimes see this in 8.5.
As you say it doesn't reboot automatically, it just says it would.
This is really bad, it just stops working. Never happened in 7.1.
We're using standard PC's as Real-time targets (ETS) and we have the following software installed on the RT :
- LV RT 8.5
- Intel 8254x ethernet driver
- Intel 8255x ethernet driver
- Broadcom 57xx ethernet driver
- NI-VISA 4.2
- NI-VISA Server 4.2
- NI-RIO 2.3.0

Any suggestions?

[eek]

You may be experiencing memory issues. Have you checked to see if there is a memory leak in your code? You can use the Real-Time System Manager to monitor the memory usage on your RT controller. I suggest you run your code and see if you reach any critical levels of memory usage before your system seems to go offline.

Cheers,
Emilie K | Applications Engineer | National Instruments

[dan_u]

Thanks for the he reply. The error even occurs when no code is running. Just booting a system to LabVIEW Real-Time. No VI or startup exe running.

Daniel

[Sima]

Hi Daniel, we were having similar problems in LV8.2.1 when our startup was and the issue was linked to timed loops, although we had successfully used timed loops in this same project since previous LV 8.0. We haven't had this crash since we replaced the timed loops with regular while loops.

Could you please post the error log that is generated by the RT? In MAX, right-click the RT system and view error log, then generate report. I am curious to see what yours says, especially since you said you hadn't been running anything. Were you running something before then that might have put the RT in a funny state?

Thanks.

Message Edited by Sima on 11-09-2007 08:17 PM

[dan_u]

Hi Sima, thanks for the info. I'll have a look at the error log and I will post it next time this happens. Doesn't occur too often so it might take some time.

[Sima]

You would still be able to find error logs from previous crashes unless you've formatted the RT recently. You don't have to wait for a crash.

[dan_u]

We reformatted the system because we had to ship it. Don't have a system where the problem occurred here unfortunately.

[TerraNova]

I'll post you a log tomorrow, guys!

[TerraNova]

...here it goes!

This one happened while working (during RT activity)
And I'm going to add one more error log (in "passive" RT state), soon.

Wait 4 your reps!
Thanks evry!