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If you also see messages like *** corrupt EvtBatcherOutput: 4056 17039628, it may be due to the DMA buffer size being too small for the data coming from the detector.  In this case, try increasing the cfgSize value found in the corresponding *.service file.  A reduction in the cfgRxCount value may be needed to allow the entire block of DMA buffers to fit in memory.

Buffer Management Registers (a.k.a. "high water mark")

Every detector should have XpmPauseThresh: was put in to protect a buffer of xpm messages.  Get's or'd together with data pause threshold, can be difficult to disentangle in general.

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