Experimental Physics and
Industrial Control System

Heinrich du Toit <[email protected]> · Fri, 28 Sep 2007 08:41:56 +0200

Hi

I'm running CA in side my IOC.

Everything works fine but at shutdown I get some funny errors at times.

One thing that happens is I get:
epicsThreadOnceOsd epicsMutexLock failed

And other times I get:
epicsThread: Unknown C++ exception in thread "CAC-UDP" at Fri Sep 28
2007 08:39:57.528629432
terminate called after throwing an instance of ''
FATAL: exception not rethrown
Aborted (core dumped)

But this doesn't happen everytime.
Seem to be something todo with timing during exit?
I have a hooked epicsatExit function.
This makes sure ca_clear_channel is called for every CHID I have.
I don't call ca_destroy_context as that seem to be done by shutdown
itself?

Can somebody just give me a tip on what those error messages mean? Then
maybe I can guess what the bug is.

Also sometimes (1 out of 30+ times) I get a segfault while starting the
IOC?  Is it dangerous todo some CA stuff during some stages of the IOC
startup?

Thankyou

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System