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<== Date ==> <== Thread ==>
Subject: Re: epicsThread warnings
From: "Konrad, Martin via Core-talk" <[email protected]>
To: Mark Rivers <[email protected]>
Cc: "[email protected]" <[email protected]>
Date: Fri, 10 Jan 2020 22:49:25 +0000 
Hi Mark,
> That's a good point, but I don't see how it relates my current
> issue. As I said, I am getting these warning messages at iocInit when
> I first create the asynPortDriver object, long before I want to
> destroy it.
Sorry, I missed that. It seems like the message is emitted by
epicsThreadAwaitingJoin() [1] which seems to be a VxWorks-specific
function that gets called at the end of epicsThreadEntry() [2] (in other
words after callbackThread::run() has completed) and only if
EPICS_THREAD_CAN_JOIN is defined. It seems like the message is only
emitted if epicsThreadAwaitingJoin() hasn't been able to acquire joinSem
within a reasonable time. I'm wondering if some other code forgot to
release the semaphore.

Andrew is probably more familiar with the details of this code. At first
sight it looks to me like the problem is in libCom.

Have a good weekend!

Martin

[1]
https://github.com/epics-base/epics-base/blob/8f358f4dd87fe6fb8fb40c426af652d383840b04/modules/libcom/src/osi/os/vxWorks/osdThread.c#L207
[2]
https://github.com/epics-base/epics-base/blob/8f358f4dd87fe6fb8fb40c426af652d383840b04/modules/libcom/src/osi/os/vxWorks/osdThread.c#L245

-- 
Martin Konrad
High Performance Controls Team Leader
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824-1321, USA
Tel. 517-908-7253
Email: [email protected]
Replies:
Re: epicsThread warnings Johnson, Andrew N. via Core-talk
References:
epicsThread warnings Mark Rivers via Core-talk
Re: epicsThread warnings Konrad, Martin via Core-talk
Re: epicsThread warnings Konrad, Martin via Core-talk
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