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From: Andrea Venturoli <ml@netfence.it>
Subject: Cannot debug over serial line
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Date: Mon, 27 Apr 2020 16:58:05 +0200
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Hello.

I've got a couple 12.1 system where I've set up remote GDB, by following 
chapter 10.4 of the developer's handbook.

However, after I enter DDB (either with boot -d or Ctrl-Alt-Esc), as 
soon as I type "gdb" the system locks.
Remote cannot connect and Ctrl-C doesn't exit GDB mode (as it says it 
should).

Any hint?

  bye & Thanks
	av.