GNU bug report logs - #36769
portable dumper mishandles user-defined hashtabs

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Package: emacs;

Reported by: Paul Eggert <eggert <at> cs.ucla.edu>

Date: Tue, 23 Jul 2019 01:30:02 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Subject: bug#36769: closed (Re: portable dumper mishandles user-defined
 hashtabs)
Date: Tue, 23 Jul 2019 02:07:03 +0000

[Message part 1 (text/plain, inline)]
Your bug report

#36769: portable dumper mishandles user-defined hashtabs

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 36769 <at> debbugs.gnu.org.

-- 
36769: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=36769
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]
From: Paul Eggert <eggert <at> cs.ucla.edu>
To: 36769-done <at> debbugs.gnu.org
Subject: Re: portable dumper mishandles user-defined hashtabs
Date: Mon, 22 Jul 2019 19:06:12 -0700

Closing this as I installed a patch as described here:

https://lists.gnu.org/r/emacs-devel/2019-07/msg00563.html


[Message part 3 (message/rfc822, inline)]
From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Emacs bug reports and feature requests <bug-gnu-emacs <at> gnu.org>
Subject: portable dumper mishandles user-defined hashtabs
Date: Mon, 22 Jul 2019 18:29:15 -0700

[Message part 4 (text/plain, inline)]
[I reported this problem on emacs-devel here:
https://lists.gnu.org/r/emacs-devel/2019-07/msg00544.html
and am sending this to bug-gnu-emacs to get a bug number.]


Portable dumping currently can screw up hash tables with user-defined tests. I 
discovered this over the weekend while looking into Pip Cet's proposed changes 
to how portable dumping treats hash tables, and have a contrived test case (see 
attached) that causes gethash to fail with "Lisp nesting exceeds 
‘max-lisp-eval-depth’" in an Emacs started via a portable dump, even though the 
same gethash works fine before dumping.

[trouble.sh (application/x-shellscript, attachment)]
This bug report was last modified 5 years and 299 days ago.

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