Experimental Physics and
Industrial Control System

Leonard Reder <[email protected]> · Sun, 22 Sep 2002 21:30:50 -0700 (PDT)

Hello,

I am developing sequencing code using a case tool called
Rhapsody.  This is part of the Keck Interferometer control
system and talks to EPICS PVs via a Keck Keyword API layer on
top of Channel Access.  I assume the Keyword API is built
on the portable CA libraries.  Currently running EPICS
3.13.0 Beta 12 at Keck and I assume the Keyword library
is linked to this.  Well up until now my Keywords (PVs) where used
in two threads and seemed to work just fine.  But I had
to add a keyword to a third thread and the following error
message is given:

CAC: unexpected select fail: 9=Bad file number
Segmentation fault

And my program segment faulted as shown.  Found this
message in $EPICS/base/src/ca/bsd_depen.c.  It is not
that the code does not run but rather this happens after
the code is running for a few minutes.  Any ideas about
exactly what is going on here?  Could an upgrade of EPICS
help this situation?

Thanks,

Len

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System