GNU bug report logs - #21428
24.5; Crash of emacs on OS X, installed via homebrew cask

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From: Rainer M Krug <Rainer <at> krugs.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: mituharu+bug-gnu-emacs-mac <at> math.s.chiba-u.ac.jp, 21428 <at> debbugs.gnu.org
Subject: bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask
Date: Tue, 29 Sep 2015 13:16:16 +0200

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Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Rainer M Krug <Rainer <at> krugs.de>
>> Cc: 21428 <at> debbugs.gnu.org,  mituharu+bug-gnu-emacs-mac <at> math.s.chiba-u.ac.jp
>> Date: Tue, 29 Sep 2015 12:17:33 +0200
>> 
>> > OK, for now just add GET_FROM_IMAGE to the assertion, like this:
>> >
>> >   eassert (it->method == GET_FROM_BUFFER
>> > 	   || it->method == GET_FROM_DISPLAY_VECTOR
>> > 	   || it->method == GET_FROM_STRING
>> > 	   || it->method == GET_FROM_IMAGE);
>> >
>> > recompile,
>> 
>> Done
>> 
>> > and see if this gets you past the crashes in
>> > push_prefix_prop when those inhibit-* variables are set to t.
>> 
>> OK
>> 
>> > If it does, then let's see if running with those inhibit-* variables
>> > set to t can trigger the crashes due to invalid face ID in
>> > get_glyph_face_and_encoding.
>> 
>> I assume you mean here to set them to NILL?
>
> No, I mean continue running with them set to t, and see if the crashes
> in get_glyph_face_and_encoding are prevented by disabling these
> redisplay optimizations.

OK - got it. So continue the initial plan.

>
> IOW, if the assertion violation in push_prefix_prop is no longer in
> the way, let's go back to our plan of trying to figure out which
> redisplay optimizations cause the crashes in
> get_glyph_face_and_encoding: first run with all optimizations
> disabled, and if that avoids the crashes in
> get_glyph_face_and_encoding, re-enable the optimizations one by one to
> see which one reintroduces the crashes.

OK - will do so.

>
> The assertion violations in push_prefix_prop are a separate issue,
> unrelated to the original problem we are trying to solve.  It just
> distracted us for a while, because you were unable to run without
> hitting them.

Ah - was wondering already a bit about the different non-similar
messages.

Thanks for your patience,

Rainer

>
> Thanks.

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax :       +33 - (0)9 58 10 27 44

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email:      Rainer <at> krugs.de

Skype:      RMkrug

PGP: 0x0F52F982

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