[dev] Re: [dwm] Crash when setting window title to a single emoji

From: Markus Unterwaditzer <markus_AT_unterwaditzer.net>
Date: Wed, 31 Aug 2016 15:29:25 +0200

On Mon, Aug 29, 2016 at 07:56:56PM +0200, Markus Unterwaditzer wrote:
> Hello,
> I'm getting crashes with a particular emoji in the window title. Enter the
> following in st/termite/xterm/urxvt (without tmux inbetween):
> PROMPT_COMMAND='echo -ne "\x1b]0;\xe2\x9b\x93b\x07"'
> dwm's output:
> dwm: fatal error: request code=140, error code=16
> X Error of failed request: BadLength (poly request too large or internal Xlib length error)
> Major opcode of failed request: 140 (RENDER)
> Minor opcode of failed request: 20 (RenderAddGlyphs)
> Serial number of failed request: 4319
> Current serial number in output stream: 4331
> System info:
> - I'm using dwm from commit 14343e6, but can reproduce with latest master as
> well. The configuration doesn't seem to matter at all. I can reproduce this
> with any font for the titlebar (I've tried Droid Sans, Terminus, Source Code
> Pro).
> - My operating system is ArchLinux, the xorg-server package is at 1.15.2-1. But
> again, this has been happening for quite a while now, there have been a few
> Xorg upgrades inbetween.
> Originally I've experienced this issue when opening the following URL in
> Firefox or Chromium: https://github.com/RustFestEU/conf-2016/issues/2 That page
> has a <title> tag with that emoji, which then lands in the window title as
> well.
> This is my first attempt at debugging anything Xorg-related, not sure what else
> could be important.
> Thanks,
> Markus

Here's another one that fails:

    PROMPT_COMMAND='echo -ne "\x1b]0;\xf0\x9f\xa4\x94\x07"'

taken from:


I seriously do wonder if anybody can reproduce this. I can on two machines, one
of them didn't have this problem until I installed bdf-unifont (either 9.0.02
or 0.0.01)


Received on Wed Aug 31 2016 - 15:29:25 CEST

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