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Subject: |
Emacs crashes when using Noto Color Emoji font |
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Date: |
Wed, 26 Feb 2020 10:13:09 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
File to reproduce the problem:
$ cat reproduce-crash.el
(set-fontset-font t '(#x10000 . #x1FFFF) '("Noto Color Emoji" . "unicode-bmp")
nil 'append) (i
nsert "🥰")
(Also attached to this mail).
Then the crash can be reproduced like this:
$ emacs -q --file reproduce-crash.el --eval '(eval-buffer)'
X protocol error: BadLength (poly request too large or internal Xlib length
error) on protocol
request 138
When compiled with GTK, Emacs cannot recover from X disconnects.
This is a GTK bug: https://gitlab.gnome.org/GNOME/gtk/issues/221
For details, see etc/PROBLEMS.
Fatal error 6: Aborted
It happens with Emacs 26.3 and also whith Emacs compiled from current
git master.
A similar problem happens when trying to show that font with "xfd"
$ xfd -fa "Noto Color Emoji"
Warning: Missing charsets in String to FontSet conversion
X Error of failed request: BadLength (poly request too large or internal Xlib
length error)
Major opcode of failed request: 138 (RENDER)
Minor opcode of failed request: 20 (RenderAddGlyphs)
Serial number of failed request: 208
Current serial number in output stream: 271
This color emoji font contains bitmaps of emoji.
--
Mike FABIAN <address@hidden>
(set-fontset-font t '(#x10000 . #x1FFFF) '("Noto Color Emoji" . "unicode-bmp")
nil 'append) (insert "🥰")
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--- Begin Message ---
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Subject: |
Re: bug#39797: Emacs crashes when using Noto Color Emoji font |
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Date: |
Wed, 26 Feb 2020 16:20:47 +0100 |
>>>>> On Wed, 26 Feb 2020 14:35:20 +0100, Mike FABIAN <address@hidden> said:
Mike> Mike FABIAN <address@hidden> さんはかきました:
>> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=37786
>>
>> seems related and
>>
>> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=37786#49
>>
>> says
>>
>> Fixed by adding "Noto Color Emoji" to face-ignored-fonts
>> instead. Closing.
>>
>> Committed as eae50e88ef
>>
>> but although I have commit eae50e88ef it still crashes for me.
Mike> I made a mistake, I compiled from git master but then used an older
Mike> installation for testing.
Mike> It *does* work with git master.
You had me worried there for a moment :-)
Mike> As can be seen in the attached screenshot, Emacs can display colour
Mike> emoji in the buffer. The screenshot uses the “Joypixels” font (Version
Mike> 5.5), but it works with “Noto Color Emoji” as well. I just tested
wrong.
Mike> Some sequences like
Mike> 👩🦰 U+1F469 U+200D U+1F9B0 woman: red hair
Mike> 🧑🦰 U+1F9D1 U+200D U+1F9B0 person: red hair
Mike> don’t render correctly in the screenshot, although they work
Mike> using the same (“Joypixels”) font in gedit. But that is a different
Mike> problem …
Is this with a cairo build or an XFT one? Gedit will almost certainly
be using cairo. (Iʼd test it myself, but downloading joypixels
requires signing up, and Iʼm feeling ornery today).
Mike> So I think this bug here can be closed.
Done with this message.
Robert
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