tail -f system_log
04-11 12:18:29.078 W/SettingsProvider( 1487): 	at android.app.ActivityThread.installProvider(ActivityThread.java:3710)
04-11 12:18:29.078 W/SettingsProvider( 1487): 	at android.app.ActivityThread.installContentProviders(ActivityThread.java:3465)
04-11 12:18:29.078 W/SettingsProvider( 1487): 	at android.app.ActivityThread.installSystemProviders(ActivityThread.java:3816)
04-11 12:18:29.078 W/SettingsProvider( 1487): 	at com.android.server.am.ActivityManagerService.installSystemProviders(ActivityManagerService.java:5579)
04-11 12:18:29.078 W/SettingsProvider( 1487): 	at com.android.server.ServerThread.run(SystemServer.java:174)
04-11 12:18:29.158 E/lights  ( 1487): init_prop: /sys/class/leds/jogball-backlight/period cannot be opened (No such file or directory)
04-11 12:18:29.168 E/lights  ( 1487): init_prop: /sys/class/leds/blue/brightness cannot be opened (No such file or directory)
04-11 12:18:29.168 E/lights  ( 1487): init_prop: /sys/class/leds/blue/blink cannot be opened (No such file or directory)
04-11 12:18:29.168 E/lights  ( 1487): init_prop: /sys/class/leds/red/brightness cannot be opened (No such file or directory)
04-11 12:18:29.168 E/lights  ( 1487): init_prop: /sys/class/leds/red/blink cannot be opened (No such file or directory)