Hi,
I am hoping there’s an AreaDetector plugin maven here…
I have written a small AD plugin intended to convert our raw camera images into a temperature heatmap, based on a calibrated gain, emissivity and exposure time. To test it, I set up a SimDetector in “peak” mode. I connect my plugin to this simDetector image.
I can successfully capture and convert 3 frames. On the fourth frame, my test dies with the following error. Are there any common pitfalls that might cause this?
NDArray.uniqueId=1
Do temperature conversion start
Took 0.0937809 s
NDArray.uniqueId=2
Do temperature conversion start
Took 0.0655851 s
NDArray.uniqueId=3
Do temperature conversion start
Took 0.0642867 s
NDArray.uniqueId=4
NDArrayPool:reserve ERROR, reference count = 0, should be >= 1, pArray=0x7f453c001d80
Thread SimDetTask (0x5621bbbb0c80) can't proceed, suspending.
Dumping a stack trace of thread 'SimDetTask':
[ 0x7f45538ffab3]: /lib/x86_64-linux-gnu/libCom.so.3.15.9(epicsStackTrace+0x73)
[ 0x7f45538f0216]: /lib/x86_64-linux-gnu/libCom.so.3.15.9(cantProceed+0xc6)
[ 0x7f4553197b08]: /lib/x86_64-linux-gnu/libADBase.so.3.11(_ZN11NDArrayPool7reserveEP7NDArray+0x78)
[ 0x7f455305db37]: /lib/x86_64-linux-gnu/libNDPlugin.so.3.11(_ZN14NDPluginDriver21beginProcessCallbacksEP7NDArray+0x367)
[ 0x7f455375df1e]: /home/daykin/git/areadetector-temperature/lib/linux-x86_64/libNDPluginTemperature.so(_ZN19NDPluginTemperature16processCallbacksEP7NDArray+0xae)
[ 0x7f455305dd53]: /lib/x86_64-linux-gnu/libNDPlugin.so.3.11(_ZN14NDPluginDriver14driverCallbackEP8asynUserPv+0x1d3)
[ 0x7f4553851155]: /lib/x86_64-linux-gnu/libasyn.so.4.38(_ZN14asynPortDriver25doCallbacksGenericPointerEPvii+0x1f5)
[ 0x7f4553809974]: /usr/lib/epics/lib/linux-x86_64/libsimDetector.so(_ZN11simDetector7simTaskEv+0x4e4)
[ 0x7f45538fa0bb]: /lib/x86_64-linux-gnu/libCom.so.3.15.9(epicsSnprintf+0x7bb)
[ 0x7f4553387ea7]: /lib/x86_64-linux-gnu/libpthread.so.0(start_thread+0xd7)
[ 0x7f455349edef]: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)
Evan Daykin
Controls Engineer
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824, USA
Tel. 517-908-7678
Email: daykin at frib.msu.edu
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