Re: dbEvent.c line 665

[Marty Kraimer <mrk@aps.anl.gov>]

Jeff Hill wrote:

> Still unable to reproduce on our Linux
>
> O when setting USE_POSIX_THREAD_PRIORITY_SCHEDULING = YES
> O when typeing exit and a ca client is attached
>
> Do I need to configure in an internal DB CA link within this IOC? 
> I am using the example application. Do I need to run an IOC in  
> mrkSoftTest to reporduce this?
>  

No. For me it happened with exampleApp.

Marty

> PS: I see these two messages now whenever a client attaches to a Linux IOC.
>
> epicsThreadSetPriority called by non epics thread
> epicsThreadSetPriority called by non epics thread
>
> Jeff
>
>  
>
> > -----Original Message-----
> > From: Jeff Hill [mailto:johill@lanl.gov] 
> > Sent: Wednesday, November 16, 2005 9:12 AM
> > To: 'Jeff Hill'; 'Marty Kraimer'
> > Cc: core-talk@aps.anl.gov
> > Subject: RE: dbEvent.c line 665
> >
> >
> >
> > So far, unable to reproduce with an example app created by 
> > makeBaseApp and a
> >
> > debug build. When I type exit it exits w/o crashing.
> >
> > Do I need to turn on priority based schedualing of libCom/osi 
> > threads on posix?
> >
> > ~/epicsR3.14/epics/appl/iocBoot/iocex$ cat /proc/version
> > Linux version 2.4.21-20.ELsmp 
> > (bhcompile@tweety.build.redhat.com) (gcc version 3.2.3 
> > 20030502 (Red Hat Linux 3.2.3-42)) #1 SMP Wed Aug 18 20:46:40 EDT 2004
> >
> >    
> >
> > > -----Original Message-----
> > > From: Jeff Hill [mailto:johill@lanl.gov]
> > > Sent: Wednesday, November 16, 2005 8:26 AM
> > > To: 'Marty Kraimer'
> > > Cc: core-talk@aps.anl.gov
> > > Subject: RE: dbEvent.c line 665
> > >
> > >
> > >
> > >      
> > >
> > > > What to do?
> > > >        
> > > I will pursue it in the debugger.
> > >
> > > Jeff
> > >
> > >      
> > >
> > > > -----Original Message-----
> > > > From: Marty Kraimer [mailto:mrk@aps.anl.gov]
> > > > Sent: Wednesday, November 16, 2005 8:08 AM
> > > > To: Jeff Hill
> > > > Cc: core-talk@aps.anl.gov
> > > > Subject: Re: dbEvent.c line 665
> > > >
> > > >
> > > > Jeff,
> > > >
> > > > I think we have a big problem.
> > > > I think this is happening because dbCaTask has called 
> > > > ca_context_destroy.
> > > >
> > > > At the end of dbCaTask I have
> > > >
> > > > printf("before ca_context_destroy\n");
> > > >    ca_context_destroy();
> > > > printf("after ca_context_destroy\n");
> > > >    epicsEventSignal(exitEvent);
> > > > }
> > > >
> > > > and I get
> > > >
> > > > epics> exit
> > > > before ca_context_destroy
> > > > after ca_context_destroy
> > > >
> > > >
> > > >
> > > > A call to "assert 
> > > > ((epicsMutexLock(((ev_que)->writelock))==epicsMutexLockOK))"
> > > > failed in
> > > > ../dbEvent.c line 665.
> > > > EPICS Release EPICS R3.14.7 $$Name: R3-14-2_branch $$ $$Date: 
> > > > 2004/12/06 
> > > > 22:31:52 $$.
> > > > Current time Wed Nov 16 2005 09:00:02.474391200.
> > > > Please E-mail this message to the author or to 
> > > > tech-talk@aps.anl.gov Calling epicsThreadSuspendSelf()
> > > >
> > > > If I take out the call to ca_context_destroy(); then exit 
> > > >        
> > terminates 
> >    
> >
> > > > without error.
> > > >
> > > > What to do?
> > > >
> > > > Marty
> > > >
> > > > Marty Kraimer wrote:
> > > >
> > > >        
> > > >
> > > > > Andrew Johnson wrote:
> > > > >
> > > > >          
> > > > >
> > > > > > I just did a CVS update and rebuild on linux-x86, created
> > > > > >            
> > > > an example
> > > >        
> > > >
> > > > > > app and ran it, which ran fine.  However on pressing
> > > > > >            
> > > > Ctrl-D to exit,
> > > >        
> > > >
> > > > > > I got this:
> > > > > >
> > > > > > epics>
> > > > > >
> > > > > >
> > > > > > A call to "assert
> > > > > >
> > > > > >            
> > ((epicsMutexLock(((ev_que)->writelock))==epicsMutexLockOK))" failed
> >    
> >
> > > > > > in ../dbEvent.c line 665.
> > > > > > EPICS Release EPICS R3.14.7 $$Name: R3-14-2_branch $$ $$Date: 
> > > > > > 2004/12/06 22:31:52 $$. Current time Tue Nov 15 2005 
> > > > > > 16:20:33.533218000. Please E-mail this message to the 
> > > > > >            
> > author or 
> >    
> >
> > > > > > to
> > > > > >            
> > > > tech-talk@aps.anl.gov
> > > >        
> > > >
> > > > > > Calling epicsThreadSuspendSelf()
> > > > > > filename="../../../src/libCom/taskwd/taskwd.c" line 
> > > > > >            
> > > number=174 task
> > >      
> > >
> > > > > > 0x80985b8 suspendedapsajnt%
> > > > > >            
> > > > >
> > > > >
> > > > > I am looking into it.
> > > > >
> > > > > Marty
> > > > >          
> > > >        
>
>