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Re: debugging core dump

From: Stefan Monnier
Subject: Re: debugging core dump
Date: Tue, 11 Apr 2017 09:32:32 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux)

> I have both emacs-25 head and master building. I have also had
> emacs-25.1 building on other machines. Not sure how to debug this;
> advice welcome.

Here's what I do, in those cases:

   M-x cd .../emacs/src
   M-x gud-gdb RET gdb ... temacs RET
   b maybe_call_debugger
   r -batch  -l loadup dump

the `r` line may need to be adjusted depending on whether the crash
happens for the generation of src/bootstrap-emacs or src/emacs: I just
copy&paste it from the failed build.


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