GNU bug report logs - #41465
28.0.50 (but also earlier versions); etags asserion error (with too many files?)

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#41465: closed (28.0.50 (but also earlier versions); etags
 asserion error (with too many files?))
Date: Sun, 24 May 2020 15:05:02 +0000

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Your message dated Sun, 24 May 2020 18:04:42 +0300
with message-id <835zclxtkl.fsf <at> gnu.org>
and subject line Re: bug#41465: 28.0.50 (but also earlier versions); etags asserion error (with too many files?)
has caused the debbugs.gnu.org bug report #41465,
regarding 28.0.50 (but also earlier versions); etags asserion error (with too many files?)
to be marked as done.

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From: Gregor Zattler <telegraph <at> gmx.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.50 (but also earlier versions); etags asserion error (with too
 many files?)
Date: Fri, 22 May 2020 21:31:57 +0200

Dear emacs developers,

I get an assertion error when executing the following line
(from a cron job of mine):

grfz <at> no:~/src$ find ~/src -type f -print0 | egrep -zZ '(\.el|\.c|\.h)(\.gz)?$' | xargs -0r etags
etags: etags.c:1987: pfnote: Assertion `name == NULL || name[0] != '\0'' failed.
xargs: etags: terminated by signal 6
125 (master *) grfz <at> no:~/src$

This happens with etags from debian buster, as with etags
build from emacs-27 branch of emacs git repo, as with etags build
from feature/native-comp branch.


Under ~/src there is also the linux kernel git repo.  There
is no assertion error if I filter it out:

$ find . -type f -print0 | egrep -vzZ linux | egrep -zZ '(\.el|\.c|\.h)(\.gz)?$' | xargs -0r etags
0 (master *) grfz <at> no:~/src$

There is also no assertion error if I filter for .el files
only:

125 (master *) grfz <at> no:~/src$ find ~/src -type f -print0 | egrep -zZ '(\.el)(\.gz)?$' | xargs -0r etags
0 (master *) grfz <at> no:~/src$


Therefore I assume this somehow is related to the number of files.


Ciao; Gregor
--
 -... --- .-. . -.. ..--.. ...-.-

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 41465-done <at> debbugs.gnu.org, telegraph <at> gmx.net
Subject: Re: bug#41465: 28.0.50 (but also earlier versions);
 etags asserion error (with too many files?)
Date: Sun, 24 May 2020 18:04:42 +0300

> From: Dmitry Gutov <dgutov <at> yandex.ru>
> Date: Sun, 24 May 2020 04:43:25 +0300
> 
> > For me this assertion error is not a big problem since I now
> > exclude the linux src tree from the tags creation because of
> > emacs performance reasons.
> 
> Thanks you for that addition.
> 
> Indeed, when I configure Emacs with
> 
>    CFLAGS='-g -O2' --enable-checking
> 
> etags does abort with assertion errors you described.

Thanks, I applied the trivial band-aid to fix this on the emacs-27
branch.

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