GNU bug report logs - #19053
25.0.50; docview fails on 24.4 and 25.0

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: William Lederer <wgl <at> ciexinc.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50; docview fails on 24.4 and 25.0
Date: Fri, 14 Nov 2014 09:38:13 -0600

Opening up a PDF file results in the message

DocView: process pdf/ps->png changed status to trace/BPT trap: 5.

and no view of the file.

This seemed to begin happening with emacs 24.4.

This also happens if configured without the "--with-ns" and running
under xquartz.



In GNU Emacs 25.0.50.1 (x86_64-apple-darwin14.0.0, NS appkit-1343.14 Version 10.10 (Build 14A389))
 of 2014-11-13 on jefferson
Windowing system distributor `Apple', version 10.3.1343
Configured using:
 `configure --x-includes=/opt/X11/include --x-libraries=/opt/X11/lib/
 --prefix=/Users/wgl --program-suffix=5a --with-ns'

Configured features:
ACL LIBXML2 ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: DocView

Minor modes in effect:
  diff-auto-refine-mode: t
  show-paren-mode: t
  global-hi-lock-mode: t
  hi-lock-mode: t
  desktop-save-mode: t
  display-time-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t

Recent messages:
Wrote /Users/wgl/Documents/scanning/scanning-second/.emacs.desktop.lock
Desktop: 1 frame, 77 buffers restored, 1 failed to restore.
For information about GNU Emacs and the GNU system, type C-h C-a.
DocView: process pdf/ps->png<1> changed status to trace/BPT trap: 5.
DocView: process pdf/ps->png changed status to trace/BPT trap: 5.
You can run the command `describe-font' with M-x d-fon RET
<nil> <down-mouse-1> is undefined
<nil> <drag-mouse-1> is undefined
Type C-c C-c to toggle between editing or viewing the document.
DocView: process pdf/ps->png changed status to trace/BPT trap: 5.

Load-path shadows:
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Message #8 received at 19053 <at> debbugs.gnu.org (full text, mbox):

From: Tassilo Horn <tsdh <at> gnu.org>
To: William Lederer <wgl <at> ciexinc.com>
Cc: 19053 <at> debbugs.gnu.org
Subject: Re: bug#19053: 25.0.50; docview fails on 24.4 and 25.0
Date: Sun, 16 Nov 2014 09:32:24 +0100

William Lederer <wgl <at> ciexinc.com> writes:

Hi William,

> Opening up a PDF file results in the message
>
> DocView: process pdf/ps->png changed status to trace/BPT trap: 5.
>
> and no view of the file.
>
> This seemed to begin happening with emacs 24.4.
>
> This also happens if configured without the "--with-ns" and running
> under xquartz.

I don't have a Mac to test but searching the web a bit seems to suggest
that you get a BPT trap signal on OSX when some dynamic library cannot
be loaded.  Maybe some image library (libpng, ImageMagic) you linked
emacs with isn't available anymore?  But then, it would be strange that
you get the signal during the conversion process...

Other search results seem to indicate that this signal might also be
caused by some brokenness in PATH.  Could you please eval this?

  (or (executable-find doc-view-pdfdraw-program)
      (executable-find doc-view-ghostscript-program)) ; <-- C-x C-e here

This should return the program used for converting ps/pdf files to png
images, e.g., here it returns "/usr/bin/mupdf".

And can you please check if the program returned by the expression above
can be called without BPT trap signal from the command line and from
inside emacs using `M-x shell-command RET /usr/bin/mupdf RET'?

Bye,
Tassilo

Message #11 received at 19053 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Tassilo Horn <tsdh <at> gnu.org>
Cc: 19053 <at> debbugs.gnu.org, William Lederer <wgl <at> ciexinc.com>
Subject: Re: bug#19053: 25.0.50; docview fails on 24.4 and 25.0
Date: Sat, 26 Dec 2015 17:27:22 +0100

Tassilo Horn <tsdh <at> gnu.org> writes:

> Other search results seem to indicate that this signal might also be
> caused by some brokenness in PATH.  Could you please eval this?
>
>   (or (executable-find doc-view-pdfdraw-program)
>       (executable-find doc-view-ghostscript-program)) ; <-- C-x C-e here

More information was requested, but no response was given within a few
months, so I'm closing this bug report.  If the problem still exists,
please reopen this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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