Re: GPIB + vxStats hangs IOC

["Brian McAllister" <brian@hotrats.mit.edu>]

>>> On 8/1/2002 at 16:55:06 +0200, Benjamin Franksen wrote:

  > at BESSY we currently have two IOCs which perform GPIB I/O over a HP
  > E2050A LAN/GPIB gateway, using the EPICS GPIB support, currently R0-3,
  > and EPICS base 3.13.6.
  > Both IOCs occasionally hang and need to be rebooted.

[...] 

  > For a test, I disabled the record that does the memory check. (Note
  > that even though devVxStats is synchronous, records are I/O interrupt
  > scanned and therefore processed by a callback task.)

  > The IOC now runs since Jul 31 15:32:42 and has not yet hung again. The
  > last times it ran for 25, 22, and then 4 hours.

For what it's worth, we have been using the old, "bundled" GPIB support in
EPICS 3.13.1 with NI-1014s (not LAN-GPIB) in conjunction with devVxStats
for years, and have not seen anything like the problems you describe.

----
Brian McAllister                    Controls Programmer/Beam Physicist
mcallister@mit.edu                        MIT-Bates Linear Accelerator
(617) 253-9537                                           Middleton, MA