[mh] Lock-up diagnosis

I need some help figuring out what's happening here if anyone has a moment.

BACKGROUND: My MH server's HD seized up and I didn't have everything backed
up that I thought I did. I had my own code checked in to a git repository
and pushed to my NAS every night, so I have that, but I made a lot of
changes to the common code directory and even bin/mh itself - which I don't
have. So, I've rebuilt the system with Ubuntu Server 20.04 and I have all
the udev rules for the USB serial devices, sound working, etc... but it
locks up now. I then decided that if I was diagnosing all of this and
having to re-do my changes, I might as well do it on the latest MH. So, I
checked it out of git and tried again. It still locked up.

MH was locking up every 60-90 seconds when I first started working on this.
I went through and pulled all my code out of my local directory and one at
a time added one file in and reloaded MH. It seemed to be stable until I
added code that uses File::Tail to monitor /var/log/syslog. I pulled it
out, and it stabilized. So, I've left it out of the code directory.
However, it's still locking up pretty tightly every few hours, days? I
don't have a pattern yet, since it has only been a couple days.

Right now as I write this, MH is locked up. I'm running it manually inside
of screen as I don't have startup scripts yet:

10/31/20 01:18:56 PM [INSTEON] Door frontscreen = closed
> 10/31/20 01:18:56 PM [CADDX] DB $idoor_frontscreen: off
> 10/31/20 01:18:56 PM [HVAC] hvac_monitor_check_state_changes...
> 10/31/20 01:18:57 PM [CADDX_MONITOR] Zone: $idoor_frontscreen / State: off
> 10/31/20 01:18:57 PM [CADDX_MONITOR] Before: The following doors were
> open: Front
>
> ^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C^C
>

I hit Ctrl-C repeatedly and it will not exit. I also ran lsof and stored it
in a text file so I can look later if need be. To kill it, I have to:
Crtl-Z; bg; kill -9 <PID>; fg

I have a feeling that MH is waiting for something, but I don't know what.
How can I track this? Will my lsof capture help?

Thanks!

-- 

Best regards,
Steve Switzer

---
Get world-class business I.T. services and a phone system with awesome
features that won't challenge your budget!http://www.sbsROC.com

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