Bug#901883: xwayland: Firefox causes Xwayland to freeze and eat 100% CPU

[Mike Hommey <mh+reportbug@glandium.org>]

Package: xwayland
Version: 2:1.20.0-2
Followup-For: Bug #901883

Dear Maintainer,

I am able to reproduce this reliably with Firefox from experimental by
going to http://example.qt.io/qt-webassembly/widgets/richtext/textedit/textedit.html

Attaching gdb to Xwayland shows the same information as mentioned in
https://bugs.archlinux.org/task/58705#comment169691, that is, that
WriteToClient receives a negative count.

Mike


-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8), LANGUAGE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages xwayland depends on:
ii  libaudit1           1:2.8.3-1
ii  libbsd0             0.9.1-1
ii  libc6               2.27-3
ii  libdrm2             2.4.92-1
ii  libegl1             1.0.0+git20180308-3
ii  libepoxy0           1.4.3-1
ii  libgbm1             18.1.2-1
ii  libgcrypt20         1.8.3-1
ii  libgl1              1.0.0+git20180308-3
ii  libpixman-1-0       0.34.0-2
ii  libselinux1         2.8-1
ii  libsystemd0         238-5
ii  libwayland-client0  1.15.0-2
ii  libxau6             1:1.0.8-1+b2
ii  libxdmcp6           1:1.1.2-3
ii  libxfont2           1:2.0.3-1
ii  libxshmfence1       1.3-1
ii  xserver-common      2:1.20.0-2

xwayland recommends no packages.

xwayland suggests no packages.

-- no debconf information