We've  got several  VT session working at the colon prompt which keep locking up. Sometimes the
lock-up last 20 seconds and comes back, sometimes it never comes back and you have to do a killsess
to get rid of them.  My performance tools show no activity with the session. A showproc of the
session shows one of their processes blocked for memory manager (BLKMM):

%SHOWPROC JPINEIRO,@.@
 #s1235, jpineiro,jcp.sys,jcp (ldev 201)
B152  0:00.225  WAIT   S1235   109  (JSMAIN.PUB.SYS)
C152  0:00.742  WAIT   S1235     75   :MPEX
C152  0:00.301  WAIT   S1235       154  (MPEX.PUB.VESOFT)
C152  0:01.480  BLKMM  S1235         155  (MAIN.PUB.VESOFT)
C152  0:00.146  WAIT   S1235           108  (MAIN.PUB.VESOFT)
C152  0:00.112  TRMIO  S1235     153  (VTSERVER.NET.SYS) ...D


The lock up appears to be in no way related toHP3000 system performance. The user can be doing one
of many things when the problem occurs (including showjob and listf).  It has happened on an idle
system.  Memory on the host is ample.  We've been unable to link the problem to any one process on
the HP or on our Network.

Here's the 1 million dollar question: Is there any way this could be anything but a desktop or
Network problem?

On the HP.
Could this be an I/O problem?
Something leading to excessive  memory pagefaults?(What's the best way to tell)

TIA

(wild, crazy and senseless guesses will gladly be accepted)

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