From: Robert Pluim <rpluim@gmail.com>
To: Robert Cochran <robert-emacs@cochranmail.com>
Cc: Shelvacu <shelvacu@gmail.com>, 38569@debbugs.gnu.org
Subject: bug#38569: 27.0.50; Certain emoji crashes with "X protocol error: BadLength"
Date: Thu, 12 Dec 2019 09:50:08 +0100 [thread overview]
Message-ID: <m2k172x70f.fsf@gmail.com> (raw)
In-Reply-To: <87mubytoph.fsf@cochranmail.com> (Robert Cochran's message of "Wed, 11 Dec 2019 15:41:30 -0800")
>>>>> On Wed, 11 Dec 2019 15:41:30 -0800, Robert Cochran <robert-emacs@cochranmail.com> said:
Robert> -----
Robert> Open the attached file with a GUI frame. The Emacs process immediately
Robert> crashes with
Robert> X protocol error: BadLength (poly request too large or internal Xlib
Robert> length error) on protocol request 138
<sigh> Luckily all this goes away when you build --with-cairo, which
should become the default in the next couple of years.
Robert> This happens to be a development version, but I was initially made aware
Robert> of this by a friend (CC'd) who uses his distro's stock Emacs package, so this
Robert> has been an issue for some time.
Robert> This probably isn't a duplicate of 37895 / 37786 , as the fix listed as
Robert> committed - "Fixed by adding "Noto Color Emoji" to face-ignored-fonts
Robert> instead" - is definitely applied here (I can see it in the list when I
Robert> do "C-h v face-ignored-fonts RET"), so there's something else at play in
Robert> this situation.
I canʼt reproduce this on my Fedora31 installation. Probably I donʼt
have the same fonts installed as you.
Robert> I tried to run Emacs in GDB, but I couldn't get 'bt full' or
Robert> 'xbacktrace' to spit out anything that looked remotely useful. I've
Robert> probably just managed to mess it up. If it's needed, I'll try again for
Robert> more useful output.
In this kind of situation it helps to run emacs in synchronous
mode. From etc/DEBUG:
For X protocol errors related to displaying unusual characters or to
font-related customizations, try invoking Emacs like this:
XFT_DEBUG=16 emacs -xrm "emacs.synchronous: true"
That XFT_DEBUG should end up telling us what the last font was that Emacs
tried, which is usually the culprit.
Robert
next prev parent reply other threads:[~2019-12-12 8:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 23:41 bug#38569: 27.0.50; Certain emoji crashes with "X protocol error: BadLength" Robert Cochran
2019-12-12 8:50 ` Robert Pluim [this message]
2019-12-12 21:34 ` Robert Cochran
2019-12-13 6:50 ` Eli Zaretskii
2019-12-13 9:01 ` Robert Pluim
2019-12-13 9:14 ` Eli Zaretskii
2019-12-13 9:20 ` Eli Zaretskii
2019-12-13 9:43 ` Robert Pluim
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