Several months back I posted about a system lock up problem, Pi 3
running owserver etc 3.1p5 with Sheepwalk
RPi3 adapter and RPi3a splitters giving me 8 busses. All devices are
powered, separately from the Pi. I use python code and pyownet to
monitor and control a mixture of about 35 DS1820 and DS2413
The problem was that I would loose all busses and it needed a power
cycle of the 1-wire to get it going again.
After trying a few things to fix it I replaced the longest cable run,
which had a couple of joints in it. It then worked, but in order to try
to tied down exactly what the problem was I set up a second Pi, as near
as possible just like the first, and used the old suspect cable run.
Logically one of them should have failed as the fault should still be
there on one of them. Neither failed for several months, the second one
sill hasn't.
Last week the main Pi failed again, I could not investigate at the time
so power cycles and it ran again.
Today it has failed again, same problem, loose all busses. This time I
power cycled the 1-wire but left the Pi running, the fault remained. I
then rebooted the Pi without further power cycle of Pi or 1-wire and it
started up again.
I really have no idea what to do next. Any suggestions on how I can
find out what is causing this. I am considering using another Pi to
detect the problem and auto power cycle the main one, but this does not
sound like a good solution so I am open to suggestions
Thanks
Mick
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