7: 'U' if a user or user application specifically requested that the
Tainted flag be set, ' ' otherwise.
+ 8: 'D' if the kernel has died recently, i.e. there was an OOPS or BUG.
+
+ 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
occurred. Tainting is permanent: even if an offending module is