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[BPMApp] The FFT record segfaults if SPAN is set to a value greater than NELM #72

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ericonr opened this issue Aug 16, 2023 · 0 comments
Open

[BPMApp] The FFT record segfaults if SPAN is set to a value greater than NELM #72

ericonr opened this issue Aug 16, 2023 · 0 comments

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@ericonr
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ericonr commented Aug 16, 2023

This was observed during operation, when SPAN was set to 200000 (NELM is 100000) and the IOC segfaulted when the "Calculate" button was pressed.

init_record handles this case appropriately, by clamping span to nelm, but process doesn't, and this was set via PV.

Related to #40

An alternative FFT record might be https://github.com/ralphlange/fftw
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