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Re: Debugging problems using async.el

From: Lars Brinkhoff
Subject: Re: Debugging problems using async.el
Date: Fri, 07 Apr 2017 20:10:25 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)

Kaushal Modi wrote:
> Lars Brinkhoff wrote:
>     I see the subordinate logs stuff to *Messages*, which goes to
>     stdout in batch mode. I wonder if that output is saved somewhere.
> It might be useful to add an option to save *Messages* and *Backtrace*
> stuff to files on disk.  In async.el, we can see those vars to t and
> enable the logging to files.

It turns out this isn't necessary.  If you make sure to turn on
async-debug in the subordinate, messages and backtraces are logged in
the parent *emacs* buffer.  I only set async-debug in the parent, so I
didn't get the full debug log.

This was very helpful.  I was able to make good progress towards finding
the root cause.  Not completely there yet though.

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