Random Freeze/Quit

[alasdair23]

We're seeing a random freeze/quit with a compiled application running under an up-to-date Ubuntu 8.04 system.

The app isn't doing very much - just moving between cards which have photos placed on them.

The app freezes, then goes to a beige screen [much like the generic Ubuntu desktop before a desktop picture is displayed].

We're running tests at this end on various hardware units [perhaps it it specific to a particular computer].

Any feedback most welcome.

[Mark]

Alsdair,

What does the programme do?

Are you using sockets?

Mark

[alasdair23]

Hi,

The app allows people to view some image content. However, when it's on a main menu screen [no processes, no sockets, no idle loop, da nada] it does nothing and still quits.

Looking around forums, it may be an Ubuntu issue with system overheating and nothing to do with RunRev, just we've not really seen this other then when the RunRev app is running.

I'm assuming that when RunRev sits on a card and does nothing - simply executing no scripts and awaiting user to click a button - it's not going to be using a load of processor cycles. Hence overheating seems odd but delivers the exact symptoms we're experiencing.

[Bernard]

can't you run 'top' (or some other GUI process monitor) on an Ubuntu install when this happens? That way you will be able to see if it is the processor that's causing over-heating. Of course, if you can't reproduce this in your own environment, then it may be a bit much to ask it of an end user.

[Mark]

alasdair23,

Does it happen if the stack window is minimised?

Mark

[alasdair23]

So this took ages, but basically we've worked out that the specific hardware platform we're authoring for gets very hot when graphics-intensive work takes place.

This caused Ubuntu to freeze and/or reboot.

Now additional fans are added, the systems are okay [but we still have a video issue with mPlayer which causes RunRev to hang from time to time].

[Bernard]

BTW, just how hot are you talking about? Do you have specific core temperature readings?

[alasdair23]

It's a custom-designed panel-PC unit inside a metal kiosk.

Core temp was running at about 50 deg centigrade when at idle [and correctly vented] it runs at like 28 - 30.

Think this is more an issue of Ubuntu and/or BIOS-level temp management rather than anything to do with RunRev.

However, having had issues with RunRev consistently looping MPEG video we assumed [incorrectly] that this specific problem was RunRev.

[Mark]

Hi,

I believe it was Björnke who reported this problem first:

http://quality.runrev.com/qacenter/show_bug.cgi?id=6348

Best,

Mark