taint: consolidate documentation (9c4560e5) · Commits · 戴 / test

Documentation/sysctl/kernel.txt

+27 −26

Original line number	Diff line number	Diff line
		@@ -964,32 +964,33 @@ detect a hard lockup condition.

		tainted:

		Non-zero if the kernel has been tainted. Numeric values, which
		can be ORed together:
		Non-zero if the kernel has been tainted. Numeric values, which can be
		ORed together. The letters are seen in "Tainted" line of Oops reports.

		1 - A module with a non-GPL license has been loaded, this
		1 (P): A module with a non-GPL license has been loaded, this
		includes modules with no license.
		Set by modutils >= 2.4.9 and module-init-tools.
		2 - A module was force loaded by insmod -f.
		2 (F): A module was force loaded by insmod -f.
		Set by modutils >= 2.4.9 and module-init-tools.
		4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
		8 - A module was forcibly unloaded from the system by rmmod -f.
		16 - A hardware machine check error occurred on the system.
		32 - A bad page was discovered on the system.
		64 - The user has asked that the system be marked "tainted". This
		4 (S): Unsafe SMP processors: SMP with CPUs not designed for SMP.
		8 (R): A module was forcibly unloaded from the system by rmmod -f.
		16 (M): A hardware machine check error occurred on the system.
		32 (B): A bad page was discovered on the system.
		64 (U): The user has asked that the system be marked "tainted". This
		could be because they are running software that directly modifies
		the hardware, or for other reasons.
		128 - The system has died.
		256 - The ACPI DSDT has been overridden with one supplied by the user
		128 (D): The system has died.
		256 (A): The ACPI DSDT has been overridden with one supplied by the user
		instead of using the one provided by the hardware.
		512 - A kernel warning has occurred.
		1024 - A module from drivers/staging was loaded.
		2048 - The system is working around a severe firmware bug.
		4096 - An out-of-tree module has been loaded.
		8192 - An unsigned module has been loaded in a kernel supporting module
		512 (W): A kernel warning has occurred.
		1024 (C): A module from drivers/staging was loaded.
		2048 (I): The system is working around a severe firmware bug.
		4096 (O): An out-of-tree module has been loaded.
		8192 (E): An unsigned module has been loaded in a kernel supporting module
		signature.
		16384 - A soft lockup has previously occurred on the system.
		32768 - The kernel has been live patched.
		16384 (L): A soft lockup has previously occurred on the system.
		32768 (K): The kernel has been live patched.
		65536 (X): Auxiliary taint, defined and used by for distros.

		==============================================================

kernel/panic.c

+4 −19

Original line number	Diff line number	Diff line
		@@ -330,25 +330,10 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
		/**
		* print_tainted - return a string to represent the kernel taint state.
		*
		* 'P' - Proprietary module has been loaded.
		* 'F' - Module has been forcibly loaded.
		* 'S' - SMP with CPUs not designed for SMP.
		* 'R' - User forced a module unload.
		* 'M' - System experienced a machine check exception.
		* 'B' - System has hit bad_page.
		* 'U' - Userspace-defined naughtiness.
		* 'D' - Kernel has oopsed before
		* 'A' - ACPI table overridden.
		* 'W' - Taint on warning.
		* 'C' - modules from drivers/staging are loaded.
		* 'I' - Working around severe firmware bug.
		* 'O' - Out-of-tree module has been loaded.
		* 'E' - Unsigned module has been loaded.
		* 'L' - A soft lockup has previously occurred.
		* 'K' - Kernel has been live patched.
		* 'X' - Auxiliary taint, for distros' use.
		* For individual taint flag meanings, see Documentation/sysctl/kernel.txt
		*
		* The string is overwritten by the next call to print_tainted().
		* The string is overwritten by the next call to print_tainted(),
		* but is always NULL terminated.
		*/
		const char *print_tainted(void)
		{

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