[arm-allstar] Fwd: Core Dumps

[Doug Crompton]

BINGO! ....If you're getting low voltage messages, the PSU is clearly a
problem.

BTW, I use the 5V 3A CPT converters and have had great results, overall.
The one MAJOR weak point that I've found is that dag-gone micro USB plug!
It is not up to the task in various scenarios---like my hanging a USB
attached SSD drive off a RPi3B+ board for extra storage.

For all my production systems, I'm soldering the leaded version of the CPT
adapter to the RPi3B/B+ boards and have seems no issues at all in that
config.  See this post:

http://lists.hamvoip.org/pipermail/arm-allstar/2017-December/006939.html

73, David KB4FXC



On Thu, 2 Aug 2018, Sean McCarthy wrote:

> I'll bet it's a PSU issue. I've recently started getting a lot of low
> voltage warnings. Got one of those CPT DC-DC converters which I'll get on
> it this weekend.
>
>
>
>
> On Thu, Aug 2, 2018 at 10:57 PM, David McGough <kb4fxc at inttek.net> wrote:
>
> >
> > Hi Sean,
> >
> > That's right. I got you confused with kg5rdf, who had a similar
> > problem to this--incidentally on a 3B+ as well.
> >
> > He ended up replacing the 3B+ with another and I have heard no more
> > reports of problems since that point. He did mention that the 3B+ he had
> > was a very early board, he got it on the first day of their release (not
> > that it would any difference).
> >
> > This problem literally seems to be runtime RAM corruption that is
> > occurring. The SD card obviously is fine, since the drop_caches
operation
> > forces Linux to reload the binary software from the SD card and it then
> > works.
> >
> > My suspicion is that this is a power supply related, somehow.
> >
> > BTW, I'm running several 3B+ boards and a small fleet of 3B's and
haven't
> > seen this condition here, so far.
> >
> >
> >
> > 73, David KB4FXC
> >