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attaching gdb to stopexit'ed process (was: unconditional core dump on exit?)

To: tech-userlevel%netbsd.org@localhost
Subject: attaching gdb to stopexit'ed process (was: unconditional core dump on exit?)
From: Edgar Fuß <ef%math.uni-bonn.de@localhost>
Date: Tue, 9 Mar 2021 16:37:45 +0100

EF> Is there a way to make a process dump core on exit no matter what?
EF> I have a deamon dying (or whatever) from time to time with no trace to the 
EF> cause and guess a backtrace from a dump would help.
KR> Start under a debugger, break on 'exit'.
I tried to set proc.$pid.stopexit, but when I attach to the stopped process 
via gdb, it exits. Is that a bug?

References:
- unconditional core dump on exit?
  - From: Edgar Fuß
- Re: unconditional core dump on exit?
  - From: Kamil Rytarowski

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