Experimental Physics and
Industrial Control System

"Sinclair, John William" <[email protected]> · Wed, 4 Jun 2014 20:55:53 +0000

I'll take a look.

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Andrew Johnson
Sent: Wednesday, June 04, 2014 1:57 PM
To: EPICS tech-talk; Janet Anderson
Subject: EDM 64-bit bug

We've discovered a problem in EDM (including latest release) when built for a 64-bit target.

The attached image shows two copies of a couple of EDM screens, the top ones are from a 32-bit executable and the bottom ones a 64-bit one. The plots from the 64-bit version have zero values inserted in between most of the valid sample points, which probably indicates that the code is using a long* instead of an epicsInt32* somewhere. In the right-hand screen the plot scrolls slowly left-wards, and when only one sample curve is displayed the new data points that appear on the right don't get the interleaved zero values any more (but the graph auto-scaling never recovers even after all the zeros have scrolled off the left side of the plot).

I'm hoping that whoever is currently maintaining the relevant EDM widget will recognize this issue and be able to fix it. We will be happy to test any patches/fixes...

Thanks,

- Andrew
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System