Re: "epicsMutex pthread_mutex_unlock failed" with pyepics/pcaspy

[Jameson Graef Rollins <jrollins@ligo.caltech.edu>]

On Fri, May 15 2015, "Wang Xiaoqiang (PSI)" <xiaoqiang.wang@psi.ch> wrote:
> Thanks for the hints. In pcaspy library, the PV instances are created on startup and live until application quits.
> The casPV::destroy method is not implemented.
> https://github.com/paulscherrerinstitute/pcaspy/blob/master/pcaspy/pv.cpp#L112

How is the garbage collection handled?  Since the problem does seem to
occur when subscriptions are disconnected, presumably something is
destroyed at that point.

> But it does implement casPV::createChannel for access security group.
> Will that cause this double free problem?

FWIW we're not using any access control in our application.

jamie.

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