GNU bug report logs - #29070
26.0.90; (file-attributes dir) => nil, even though (and (file-exists-p dir) (file-directory-p dir)) => t

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From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: andrés ramírez <rrandresf <at> gmail.com>
Cc: 29070 <at> debbugs.gnu.org
Subject: bug#29070: 26.0.90; emacs-26.0.90 pretest
Date: Mon, 30 Oct 2017 22:49:33 -0400

andrés ramírez <rrandresf <at> gmail.com> writes:

> Hi Noam.
>> Okay, can you run under gdb, and step through Ffile_attributes to see
>> where it's going wrong?
> The task is not so easy. When starting emacs "Ffile_attributes" is
> called multiple times. I just need to stop the breakpoint when
> 'Lisp_Object filename' = "/tmp/emacs1000". How coul I code that
> condition inside the function?

gdb --args ./emacs -Q
(gdb) run

Let Emacs startup, then hit C-z in the terminal which runs gdb.  This
will stop Emacs, and give you back a gdb prompt.

(gdb) break Ffile_attributes
(gdb) continue

Now that you have a breakpoint in Ffile_attributes, you can call it from
Emacs.

> In the meantime. I have tried the same source code (pretest) on another equal machine with
> another distro (archlinux). The issue is not present on the archlinux
> distro.

You mentioned other Emacs versions on the same machine.  Is it only
26.0.90 which shows this problem (and only on the one machine)?

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