x86: mce: Update X86_MCE description in x86/Kconfig

- Clarify that this config controls thermal throttling reporting too - Clarify the types of errors reported by machine checks - Drop references to ancient CPUs. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>

x86: mce: Update X86_MCE description in x86/Kconfig
- Clarify that this config controls thermal throttling reporting too - Clarify the types of errors reported by machine checks - Drop references to ancient CPUs. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Andi Kleen · H. Peter Anvin
1 parent c31d96338a
Showing 1 changed file with 4 additions and 12 deletions Side-by-side Diff
arch/x86/Kconfig
@@ -774,20 +774,12 @@
 	  increased on these systems.
  
 config X86_MCE
-	bool "Machine Check Exception"
+	bool "Machine Check / overheating reporting"
 	---help---
-	  Machine Check Exception support allows the processor to notify the
-	  kernel if it detects a problem (e.g. overheating, component failure).
+	  Machine Check support allows the processor to notify the
+	  kernel if it detects a problem (e.g. overheating, data corruption).
 	  The action the kernel takes depends on the severity of the problem,
-	  ranging from a warning message on the console, to halting the machine.
-	  Your processor must be a Pentium or newer to support this - check the
-	  flags in /proc/cpuinfo for mce.  Note that some older Pentium systems
-	  have a design flaw which leads to false MCE events - hence MCE is
-	  disabled on all P5 processors, unless explicitly enabled with "mce"
-	  as a boot argument.  Similarly, if MCE is built in and creates a
-	  problem on some new non-standard machine, you can boot with "nomce"
-	  to disable it.  MCE support simply ignores non-MCE processors like
-	  the 386 and 486, so nearly everyone can say Y here.
+	  ranging from warning messages to halting the machine.
  
 config X86_OLD_MCE
 	depends on X86_32 && X86_MCE
...	...	@@ -774,20 +774,12 @@
774	774	increased on these systems.
775	775
776	776	config X86_MCE
777		- bool "Machine Check Exception"
	777	+ bool "Machine Check / overheating reporting"
778	778	---help---
779		- Machine Check Exception support allows the processor to notify the
780		- kernel if it detects a problem (e.g. overheating, component failure).
	779	+ Machine Check support allows the processor to notify the
	780	+ kernel if it detects a problem (e.g. overheating, data corruption).
781	781	The action the kernel takes depends on the severity of the problem,
782		- ranging from a warning message on the console, to halting the machine.
783		- Your processor must be a Pentium or newer to support this - check the
784		- flags in /proc/cpuinfo for mce. Note that some older Pentium systems
785		- have a design flaw which leads to false MCE events - hence MCE is
786		- disabled on all P5 processors, unless explicitly enabled with "mce"
787		- as a boot argument. Similarly, if MCE is built in and creates a
788		- problem on some new non-standard machine, you can boot with "nomce"
789		- to disable it. MCE support simply ignores non-MCE processors like
790		- the 386 and 486, so nearly everyone can say Y here.
	782	+ ranging from warning messages to halting the machine.
791	783
792	784	config X86_OLD_MCE
793	785	depends on X86_32 && X86_MCE