From: Andy Moreton <andrewjmoreton@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 43700@debbugs.gnu.org
Subject: bug#43700: 28.0.50; Crash creating a second frame
Date: Tue, 29 Sep 2020 15:49:41 +0100 [thread overview]
Message-ID: <6b20df65-0c09-f54c-1018-e95f7509aa75@gmail.com> (raw)
In-Reply-To: <83y2ksk5sb.fsf@gnu.org>
On 29/09/2020 15:37, Eli Zaretskii wrote:
>> From: Andy Moreton <andrewjmoreton@gmail.com>
>> Date: Tue, 29 Sep 2020 11:46:48 +0100
>>
>> After loading emacs (and files saved by desktop), do C-x 5 2 to create a
>> new frame. Emacs crashes, and gdb shows the following backtrace.
>
> Is this repeatable? Does it happen with "emacs -Q", per chance? Or
> with unoptimized builds?
It is repeatable occasionally, but I don't yet have a recipe to
reproduce it reliably.
It doesn't seem to happen from "emacs -Q", or from emacs --no-desktop"
but it may be that I have not tried enough times to trigger it.
>> This seems to have something to do with toolbars, but ~/.emacs.d/init.el
>> contains "(tool-bar-mode 0)" so it shouldn't be doing anything with toolbars.
>
> Creating a frame makes a keymap for the tool bar, whether it's
> displayed or not.
>
> But look at this part:
>
>> #9 0x00000004001e76b1 in FACE_FROM_ID (id=0x162880, f=0x154e25ed5d860000) at
>> C:/emacs/git/emacs/master/src/frame.h:1460
>> No locals.
>> #10 lookup_image (f=0x154e25ed5d860000, f@entry=0x6edbab0, spec=XIL(0),
>> spec@entry=XIL(0xcd2b873), face_id=0x162880, face_id@entry=0xffffffff) at
>> C:/emacs/git/emacs/master/src/image.c:2332
>> img = <optimized out>
>> hash = <optimized out>
>> face = <optimized out>
>> foreground = <optimized out>
>> background = <optimized out>
>> #11 0x00000004001e8235 in Fimage_mask_p (spec=XIL(0xcd2b873), frame=XIL(0)) at
>> C:/emacs/git/emacs/master/src/image.c:1114
>> f = 0x6edbab0
>
> Look at the reasonable values of the arguments at entry to
> lookup_image, and the garbled values at the crash site. The line that
> calls FACE_FROM_ID is the first executable line of lookup_image, so
> this could have happened only if the optimizations moved some
> non-trivial code between the entry to the function and that line. Or
> maybe something else is at work here.
Something is definitely fishy. Perhaps a full bootstrap might fix it.
AndyM
next prev parent reply other threads:[~2020-09-29 14:49 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 10:46 bug#43700: 28.0.50; Crash creating a second frame Andy Moreton
2020-09-29 14:37 ` Eli Zaretskii
2020-09-29 14:49 ` Andy Moreton [this message]
2020-09-30 20:06 ` Andy Moreton
2020-10-01 0:15 ` Andy Moreton
2020-10-01 12:53 ` Eli Zaretskii
2020-10-02 0:38 ` Andy Moreton
2020-10-02 11:49 ` Eli Zaretskii
2020-10-02 23:07 ` Andy Moreton
2020-10-03 8:16 ` Eli Zaretskii
2020-10-03 12:26 ` Andy Moreton
2020-10-03 12:45 ` Eli Zaretskii
2020-10-03 13:40 ` Andy Moreton
2020-10-03 14:02 ` Eli Zaretskii
2020-10-03 14:05 ` Andy Moreton
2020-10-03 14:32 ` Eli Zaretskii
2020-10-03 17:03 ` Andy Moreton
2020-10-03 17:18 ` Eli Zaretskii
2020-10-03 17:21 ` Lars Ingebrigtsen
2020-10-03 17:54 ` Eli Zaretskii
2020-10-03 17:56 ` Lars Ingebrigtsen
2020-10-03 18:00 ` Eli Zaretskii
2020-10-03 18:21 ` Andy Moreton
2020-10-03 18:29 ` Eli Zaretskii
2020-10-03 17:51 ` Eli Zaretskii
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