Comment 2 for bug 294454

Situation gets even worse - after clean reinstall Ubuntu server 8.10 and Xvfb from actual repos I've got Xvfb process hanged with 95% CPU load and no success with killing it:

ais77@sev77u:~$ top
  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10190 root 20 0 22748 18m 15m R 94.4 3.7 63:56.40 Xvfb
...

ais77@sev77u:~$ ps -C Xvfb
  PID TTY TIME CMD
10190 ? 00:03:12 Xvfb
ais77@sev77u:~$ sudo killall Xvfb
ais77@sev77u:~$ ps -C Xvfb
  PID TTY TIME CMD
10190 ? 00:03:24 Xvfb
ais77@sev77u:~$ sudo killall Xvfb
ais77@sev77u:~$ sudo killall Xvfb
ais77@sev77u:~$ ps -C Xvfb
  PID TTY TIME CMD
10190 ? 00:06:17 Xvfb
ais77@sev77u:~$ sudo killall -v -w Xvfb
Killed Xvfb(10190) with signal 15

and killall hangs sinding SIGTERM too...
Any idea how to kill it?

On clean installed (as mentioned) system there is no /var/log/Xorg.0.log, neither /var/log/Xorg.0.log files at all.
ais77@sev77u:~$ ls /var/log
apparmor debug installer mail.warn unattended-upgrades
apt dist-upgrade kern.log messages user.log
aptitude dmesg landscape news vsftpd.log
auth.log dmesg.0 lastlog pycentral.log wtmp
boot dmesg.1.gz lpr.log samba
btmp dpkg.log mail.err syslog
ConsoleKit faillog mail.info syslog.0
daemon.log fsck mail.log udev

ais77@sev77u:~$ ls /etc/X11
fonts xkb Xresources Xsession Xsession.d Xsession.options Xwrapper.config
lspci -vvnn output is attached.

Xvfb was started by
/usr/bin/X11/Xvfb :10.10 -screen 10 800x600x16 -ac -br -kb -c -fbdir /var/tmp
/ &