[Galaxy S II Q&A, Help & Troubleshooting] big_bum:
The FC's are caused by a stack overflow.

E/AndroidRuntime(14457): FATAL EXCEPTION: main
E/AndroidRuntime(14457): java.lang.StackOverflowError
E/AndroidRuntime(14457): at android.os.SystemProperties.getLong(SystemProperties.java:99)
E/AndroidRuntime(14457): at android.provider.Settings$NameValueCache.getStringForUser(Settings.java:804)
E/AndroidRuntime(14457): at android.provider.Settings$Secure.getStringForUser(Settings.java:4674)
E/AndroidRuntime(14457): at android.provider.Settings$Secure.getIntForUser(Settings.java:4734)
E/AndroidRuntime(14457): at android.provider.Settings$Secure.getInt(Settings.java:4729)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3183)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatusBar$SettingsObserver.onChange(PhoneStatusBar.java:3185)
E/AndroidRuntime(14457): at android.database.ContentObserver.onChange(ContentObserver.java:129)
E/AndroidRuntime(14457): at com.android.systemui.statusbar.phone.PhoneStatus

There is not kroz's fault.