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authorAndi Kleen <andi@firstfloor.org>2009-09-16 11:50:17 +0200
committerAndi Kleen <ak@linux.intel.com>2009-09-16 11:50:17 +0200
commitcae681fc12a824631337906d6ba1dbd498e751a5 (patch)
tree121ca5ece3adc954010f32f1d502066158124887 /mm/Kconfig
parent9893e49d64a4874ea67849ee2cfbf3f3d6817573 (diff)
downloadconfigs-cae681fc12a824631337906d6ba1dbd498e751a5.tar.gz
HWPOISON: Add simple debugfs interface to inject hwpoison on arbitary PFNs
Useful for some testing scenarios, although specific testing is often done better through MADV_POISON This can be done with the x86 level MCE injector too, but this interface allows it to do independently from low level x86 changes. v2: Add module license (Haicheng Li) Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'mm/Kconfig')
-rw-r--r--mm/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index ea2d8b61c63..4b4e57a9643 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -243,6 +243,10 @@ config MEMORY_FAILURE
even when some of its memory has uncorrected errors. This requires
special hardware support and typically ECC memory.
+config HWPOISON_INJECT
+ tristate "Poison pages injector"
+ depends on MEMORY_FAILURE && DEBUG_KERNEL
+
config NOMMU_INITIAL_TRIM_EXCESS
int "Turn on mmap() excess space trimming before booting"
depends on !MMU