9: 'A' if the ACPI table has been overridden.
10: 'W' if a warning has previously been issued by the kernel.
+ (Though some warnings may set more specific taint flags.)
+
+ 11: 'C' if a staging driver has been loaded.
+
+ 12: 'I' if the kernel is working around a severe bug in the platform
+ firmware (BIOS or similar).
The primary reason for the 'Tainted: ' string is to tell kernel
debuggers if this is a clean kernel or if anything unusual has