feodra 17自动注销

系统在使用的过程中重启，系统日志问题显示：
*ERROR* Cannot create /sys/kernel/debug/dri/channel/3
Nov 26 15:07:39 localhost rtkit-daemon[916]: Successfully made thread 2031 of process 2031 (/usr/bin/pulseaudio) owned by '42' high priority at nice level -11.
Nov 26 15:07:39 localhost rtkit-daemon[916]: Successfully made thread 2043 of process 2031 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
Nov 26 15:07:39 localhost rtkit-daemon[916]: Successfully made thread 2044 of process 2031 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
Nov 26 15:07:39 localhost rtkit-daemon[916]: Successfully made thread 2045 of process 2031 (/usr/bin/pulseaudio) owned by '42' RT at priority 5.
Nov 26 15:07:39 localhost kernel: [ 1523.807515] [drm:drm_debugfs_create_files]
在网上没有搜到答案。不知道需不需要贴这个：
[sun@localhost ~]$ rpm -qa | grep kernel
libreport-plugin-kerneloops-2.0.18-1.fc17.i686
kernel-headers-3.6.7-4.fc17.i686
kernel-3.6.7-4.fc17.i686