GNU bug report logs - #3082
Crash in ns_draw_glyph_string

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From: Adrian Robert <adrian.b.robert <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: David Reitter <david.reitter <at> gmail.com>, Chong Yidong <cyd <at> stupidchicken.com>, 3082 <at> debbugs.gnu.org
Subject: bug#3082: Crash in ns_draw_glyph_string
Date: Mon, 3 Feb 2014 09:21:45 +0200

I cannot reproduce it with -Os or -O2 or -O3.  I am not sure if the scrolling is working correctly (there are jumps when there don’t need to be) but that would be a different bug report.


On 2014.2.3, at 02:11, Lars Ingebrigtsen <larsi <at> gnus.org> wrote:

> David Reitter <david.reitter <at> gmail.com> writes:
> 
>> On Apr 23, 2009, at 11:26 PM, Adrian Robert wrote:
>>>> David Reitter <david.reitter <at> gmail.com> wrote:
>>>> 
>>>>> Emacs -Q
>>>>> M-x list-faces-display
>>>>> C-x o
>>>>> C-x 1
>>>>> M-: (setq scroll-step 1 scroll-conservatively 1)
>>>>> (enlarge frame a bit)
>>>>> 
>>>>> Now scroll down (with Down/Home) repeatedly.  In two out of three
>>>>> trials this produced the crash below for me.
>>> 
>>> 
>>> I can't get this to reproduce when -O2 not given, but the stack
>>> trace is incomplete when it is.  David, is this crash frequently
>>> occurring in other contexts, or only through the specific recipe you
>>> give?
>> 
>> I've had these crashes a lot when experimenting with many faces being
>> displayed - but only then; not really (or rarely) during normal use.
>> I've been using -O3.
>> 
>> Unfortunately I couldn't reproduce under gdb the other day.
> 
> Is this problem still present in Emacs 24?
> 
> -- 
> (domestic pets only, the antidote for overdose, milk.)
>  bloggy blog http://lars.ingebrigtsen.no/

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