minicom crash while using SSH

[Adam Lackorzynski]

Hi,

On Sat Jan 19, 2019 at 09:42:28 -0700, Corey wrote:
> I have minicom installed on a Raspberry Pi 3B+ and is connected to a SCOM
> 7330 via a USB-to-Serial cable. The 7330 is an amateur radio product that
> is programmed through its serial console.
> 
> The communication speed is 57600 8N1.
> 
> I was SSH's into the pi and connected to the 7330 to update a 8 meg bin
> file. The transfer protocol is XMODEM. The transfer will see NAK and retry
> once and continue the upload. However, randomly, during a NAK error, the pi
> will crash. I lose SSH connectivity and am unable to ping the pi. A power
> cycle is the only way to recover.
> 
> I was able to reproduce this event three times and only occurs if I am
> remoted into the pi.
> 
> The pi does not lock up if I am consoled into it locally. I transferred the
> same file twice locally without the pi crashing.
> 
> Are there any logs I can send you to help diagnose this?

Could you supervise locally what might be happening while you trigger it
via ssh? Is it maybe eating memory, swapping, or similar?
XMODEM transfers are done by the lrzsz tools but minicom obviously also
shows progress of the transfer.
Which version of minicom are you running?


Adam