GNU bug report logs - #28498
25.2; Crash calling `find-font' on text-only terminals on macOS

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

From: Duncan Harvey <djh-emacs-bugs <at> syndrig.co.uk>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.2; Crash calling `find-font' on text-only terminals on macOS
Date: Mon, 18 Sep 2017 16:31:44 +0100

Run:
  .../path/to/Emacs -nw -Q -eval '(find-font (font-spec :name "Menlo-16"))'

On my system this crashes more often than not: "Fatal error 11: Segmentation faultAbort trap: 6"

Unfortunately it does not crash 100% of the time.  If you don't experience a crash immediately, please try half a dozen or so times, or wait a few seconds before re-attempting.


In GNU Emacs 25.2.1 (x86_64-apple-darwin13.4.0, NS appkit-1265.21 Version 10.9.5 (Build 13F1911))
of 2017-04-21 built on builder10-9.porkrind.org
Windowing system distributor 'Apple', version 10.3.1504
Configured using:
'configure --with-ns '--enable-locallisppath=/Library/Application
Support/Emacs/${version}/site-lisp:/Library/Application
Support/Emacs/site-lisp' --with-modules'

Configured features:
NOTIFY ACL GNUTLS LIBXML2 ZLIB TOOLKIT_SCROLL_BARS NS MODULES

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

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-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
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Making completion list...

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None found.

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Memory information:
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Message #8 received at 28498 <at> debbugs.gnu.org (full text, mbox):

From: Alan Third <alan <at> idiocy.org>
To: Duncan Harvey <djh-emacs-bugs <at> syndrig.co.uk>
Cc: 28498 <at> debbugs.gnu.org
Subject: Re: bug#28498: 25.2; Crash calling `find-font' on text-only
 terminals on macOS
Date: Mon, 18 Sep 2017 17:32:26 +0100

On Mon, Sep 18, 2017 at 04:31:44PM +0100, Duncan Harvey wrote:
> Run:
>   .../path/to/Emacs -nw -Q -eval '(find-font (font-spec :name "Menlo-16"))'
> 
> On my system this crashes more often than not: "Fatal error 11: Segmentation faultAbort trap: 6"
> 
> Unfortunately it does not crash 100% of the time. If you don't
> experience a crash immediately, please try half a dozen or so times,
> or wait a few seconds before re-attempting.

I can only replicate this on Emacs 25, the Emacs 26 branch seems
immune.

Can you please try a nightly build?
-- 
Alan Third

Message #11 received at 28498 <at> debbugs.gnu.org (full text, mbox):

From: Duncan Harvey <djh-emacs-bugs <at> syndrig.co.uk>
To: Alan Third <alan <at> idiocy.org>
Cc: 28498 <at> debbugs.gnu.org
Subject: Re: bug#28498: 25.2; Crash calling `find-font' on text-only terminals
 on macOS
Date: Mon, 18 Sep 2017 17:58:34 +0100

> Can you please try a nightly build?

Sure.  From where can I download one?  (<https://emacsformacosx.com/builds> seems to have stopped producing nightly builds back in June.)

-- Duncan

Message #14 received at 28498 <at> debbugs.gnu.org (full text, mbox):

From: Alan Third <alan <at> idiocy.org>
To: Duncan Harvey <djh-emacs-bugs <at> syndrig.co.uk>
Cc: 28498 <at> debbugs.gnu.org
Subject: Re: bug#28498: 25.2; Crash calling `find-font' on text-only
 terminals on macOS
Date: Mon, 18 Sep 2017 20:12:05 +0100

On Mon, Sep 18, 2017 at 05:58:34PM +0100, Duncan Harvey wrote:
> 
> > Can you please try a nightly build?
> 
> Sure. From where can I download one?
> (<https://emacsformacosx.com/builds> seems to have stopped producing
> nightly builds back in June.)

Hmm, As far as I’m aware that’s the only place you can get a nightly
build, unless you fancy using homebrew or building it yourself?

Can you please try that June build? I think all the crash bug fixes
for macOS date to before then.
-- 
Alan Third

Message #17 received at 28498 <at> debbugs.gnu.org (full text, mbox):

From: Duncan Harvey <djh-emacs-bugs <at> syndrig.co.uk>
To: Alan Third <alan <at> idiocy.org>
Cc: 28498 <at> debbugs.gnu.org
Subject: Re: bug#28498: 25.2; Crash calling `find-font' on text-only terminals
 on macOS
Date: Tue, 19 Sep 2017 17:29:17 +0100

> On 18 Sep 2017, at 20:12, Alan Third <alan <at> idiocy.org> wrote:
> 
> Can you please try that June build?

Yes.  Using the 2017-06-11 nightly build, I confirm that this no longer crashes for me.

> I think all the crash bug fixes for macOS date to before then.

Thanks!

-- Duncan

Message #20 received at 28498 <at> debbugs.gnu.org (full text, mbox):

From: Alan Third <alan <at> idiocy.org>
To: Duncan Harvey <djh-emacs-bugs <at> syndrig.co.uk>
Cc: 28498 <at> debbugs.gnu.org
Subject: Re: bug#28498: 25.2; Crash calling `find-font' on text-only
 terminals on macOS
Date: Tue, 19 Sep 2017 20:48:49 +0100

On Tue, Sep 19, 2017 at 05:29:17PM +0100, Duncan Harvey wrote:
> 
> > On 18 Sep 2017, at 20:12, Alan Third <alan <at> idiocy.org> wrote:
> > 
> > Can you please try that June build?
> 
> Yes.  Using the 2017-06-11 nightly build, I confirm that this no longer crashes for me.

Thanks. I’ll close this one as it will be fixed in Emacs 26.
-- 
Alan Third

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