Experimental Physics and Industrial Control System
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Hello,
For lack of a better idea on where to report a bug in EPICS base, here it is;
Calling the destructor on more than one instance of a pvac::ClientProvider which has been constructed with a provider name of "ca" (channel access) causes (what appears to be) a deadlock. Using "pva" (pvAccess) does not appear to trigger this deadlock. I have
attached a screenshot of where the deadlock appears to be located (from pausing the application when running it under a debugger). The code that causes the triggers the deadlock can be found here:
https://github.com/ess-dmsc/forward-epics-to-kafka/blob/a75fab2a7343906c147722825a258332fc2126e7/src/EpicsClient/EpicsClientMonitorImpl.h
In this piece of code, the version of EPICS base used is 7.0.3.1. I believe I had a the same issue when testing with earlier versions of EPICS7 a few months back as well.
/Jonas
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ANJ, 01 May 2020 |
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