Description:

All time I got message in FF plugin flash is crushed.

Additional info:
* package version(s)
* config and/or log files etc.

$ uname -a
Linux x 3.8.11-1-ARCH #1 SMP PREEMPT Wed May 1 20:18:57 CEST 2013 x86_64 GNU/Linux

$ pacman -Q linux
linux 3.8.11-1

$ pkgfile libpthread-2.17.so
$
$ pkgfile libvdpau_nvidia.so
extra/nvidia-utils
multilib/lib32-nvidia-utils

$ lspci |grep -i VGA
02:00.0 VGA compatible controller: NVIDIA Corporation G84 [GeForce 8600 GT] (rev a1)

$ pacman -Q firefox
firefox 20.0.1-5

$ pacman -Q nvidia-utils
nvidia-utils 313.30-2

$ pacman -Q xorg-server
xorg-server 1.14.1-1

$ pacman -Q |grep xfce4
libxfce4ui 4.10.0-1
libxfce4util 4.10.1-1
xfce4-appfinder 4.10.1-1
xfce4-cpugraph-plugin 1.0.5-1
xfce4-datetime-plugin 0.6.2-1
xfce4-diskperf-plugin 2.5.4-1
xfce4-mixer 4.10.0-1
xfce4-panel 4.10.1-1
xfce4-power-manager 1.2.0-3
xfce4-sensors-plugin 1.2.5-1
xfce4-session 4.10.1-1
xfce4-settings 4.10.1-1
xfce4-taskmanager 1.0.0-3
xfce4-terminal 0.6.2-1

$ pacman -Q |grep flash
flashplugin 11.2.202.280-1

$ sudo cat /var/log/kernel.log
[...]
May 9 10:04:25 x systemd-coredump[2284]: Process 1707 (plugin-containe) dumped core.
May 9 10:04:40 x kernel: [93621.899856] plugin-containe[2299]: segfault at 7fb6da0730c8 ip 00007fb6d8448f2b sp 00007fb6d62fc270 error 6 in libvdpau_nvidia.so.313.30[7fb6d8440000+a3000]
May 9 10:04:41 x systemd-coredump[2301]: Process 2286 (plugin-containe) dumped core.
May 9 10:05:39 x kernel: [93681.296269] plugin-containe[2319]: segfault at 7f6ae5fc0cf8 ip 00007f6b00404c78 sp 00007f6ae3394a60 error 6 in libpthread-2.17.so[7f6b003f9000+17000]
May 9 10:05:40 x systemd-coredump[2320]: Process 2305 (plugin-containe) dumped core.


Steps to reproduce:

A few time when open about 5 site with flash in FF.