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See 100% dead time from all 5 hsd's.  Ric suggests looking at the following in /proc/datadev_0 (and 1).  this suggests that all buffers are in the kcu:  (not stuck in software).  disable times out.

Code Block
  Buffers In Hw : 4095         (number of buffers in the kcu)
  Buffers In Pre-Hw Q : 61334  (number of buffers driver has to hand to the kcu)
  Buffers In Rx Queue : 0      (buffers transferred from kcu to driver, ready to be received by dmaReadBulkIndex)

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