Re: emacs locked when internet connection is cut... [+ help-gnu-emacs: Invalid read syntax: ")" ]

[Jean-Christophe Helary]

This must be a bug...

When I reconfigured emacs with  --enable-checking='yes,glyphs' --enable-check-lisp-object-type CFLAGS='-O0 -g3', to attach gdb, I ended up with a build that generated an "Invalid read syntax ")" error every time I started emacs *even though I had not modified my init file* (~/.emacs.el).

Once I reverted to a normal configuration, that same init file was evaluated without any issues.

Also, When I was running emacs -q on that modified configuration the issue seemed to center on the (require 'package) line, but when I commented it out I still had the same error...

What can I do to investigate this ?

Jean-Christophe 

On May 2, 2018, at 15:56, Jean-Christophe Helary <address@hidden> wrote:

Eli,

Thank you for the instructions.

I've reconfigured emacs to make debugging easier (./configure --enable-checking='yes,glyphs' --enable-check-lisp-object-type CFLAGS='-O0 -g3') re-"make install"-ed it and launched gdb attached to its PID.

I can't seem to be able to run gdb and attach emacs without getting a lot of error messages so I'm wondering if there is a better way to get what you need to investigate into this issue.

JC

On May 1, 2018, at 23:56, Eli Zaretskii <address@hidden> wrote:

From: Jean-Christophe Helary <address@hidden>
Date: Tue, 1 May 2018 17:37:48 +0900

I was doing things with package.el when my connection got cut. Just when emacs was trying to contact melpa.org:80...

The UI is locked, and even when I'm back online (I'm sending this mail), emacs does not seem to notice...

Shouldn't there be a timeout for any function that requires external ressources like an internet connection ? The current behavior is *extremely* inconvenient...

We do have timeouts, and use async APIs where possible.  Evidently, it
somehow doesn't work in your case.  But you didn't give enough
information to start digging into the problem.  Assuming this is
reproducible, please attach a debugger to Emacs when it hangs like
that and show the C-level backtrace.  Please report the results as a
bug, using report-emacs-bug, which will also collect several important
aspects of your build and setup.

Armed with that knowledge, we might be able to investigate this
problem.

Thanks.

Jean-Christophe Helary
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http://mac4translators.blogspot.com @brandelune

Jean-Christophe Helary
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http://mac4translators.blogspot.com @brandelune