I upgraded to Zoneminder 1.30.4 and camera dropouts were still occuring. That issue is not related, in my case.rockedge wrote: ↑Tue Feb 07, 2017 12:36 am Here is what you are experiencing? https://github.com/ZoneMinder/ZoneMinder/pull/1717
I set /dev/shm to be higher. It was still occuring at this point. I then set watchdog timer from 10 seconds to 30 seconds in options - system and dropouts have stopped. I also added verbose logging to zmwatch, but it was not necessary.
If further troubleshooting is needed, it's easy to edit zmwatch.pl and add additional logging to see where it's getting hung up, and why. If the problem occurs for me again, that is what I will do.