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On May 24, 2023 saw a failure where 3 out of 4 hsd's in rix failed configure phase2.  The failing channels did not increment txcntsum in the pgp tab in hsdpva.  The timing links looked OK, showing the usual 919kHz (should be 929?) of timing frames.  Restarting hsdioc's didn't help.  hsdpva timrxrst, timpllrst, reset didn't help either.  xpmpva TxLinkReset didn't help.  Eventually recovered by restarting hsdioc and waiting longer, so I think I didn't wait long enough in previous hsdioc restart attempts?  Also saw many errors like this in the hsdioc logs when it was broken:

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