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changes.mady.by.user Ric Claus

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changes.mady.by.user Christopher O'Grady

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See 100% dead time from all 5 hsd's.  Ric suggests looking at the Read Buffers section in /proc/datadev_0 (and 1).  this suggests that all buffers are in the kcu:  (not stuck in software).  disable times out.  answer (after working with Matt) msgdelay was set to 91 in hsdpva: too short so overwrote front-end buffers

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

running 5 hsd nodes at 1mhz saw this on dev010 and node became unresponsive (disable timed out?):

Code Block
Message from syslogd@drp-tst-dev010 at Jun  5 13:02:43 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#10 stuck for 22s! [swapper/10:0]

hsd configure times out the first time, but works second time.  Matt says that he seen the transition not received at all by the hsd.