Bug#845445: mutter: illegal instruction error

[dark yux]

Package: mutter
Version: 3.14.4-1~deb8u1
Severity: important

Dear Maintainer,

When trying to use mutter I receive a illegal instruction error. Try this with two terminals:

Terminal 1:
Xephyr -ac -br -noreset -screen 800x600 :1

Terminal 2:
mutter -d :1

I expected Mutter functioning within a Xephyr window. Instead I got: "[1]    21548 illegal hardware instruction  mutter -d :1".

-- System Information:
Debian Release: 8.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages mutter depends on:
ii  gnome-themes-standard      3.14.2.2-1
ii  gsettings-desktop-schemas  3.14.1-1
ii  libc6                      2.19-18+deb8u6
ii  libclutter-1.0-0           1.20.0-1
ii  libglib2.0-0               2.42.1-1+b1
ii  libmutter0e                3.14.4-1~deb8u1
ii  libx11-6                   2:1.6.2-3
ii  libxcomposite1             1:0.4.4-1
ii  mutter-common              3.14.4-1~deb8u1
ii  zenity                     3.14.0-1
Versions of packages mutter recommends:
ii  openbox [x-session-manager]  3.5.2-8
Versions of packages mutter suggests:
ii  gnome-control-center  1:3.14.2-3
ii  xdg-user-dirs         0.15-2