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-rw-r--r--arch/sparc64/Kconfig.debug14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/sparc64/Kconfig.debug b/arch/sparc64/Kconfig.debug
index cd8d39fb954d..fa06ea04837b 100644
--- a/arch/sparc64/Kconfig.debug
+++ b/arch/sparc64/Kconfig.debug
@@ -33,13 +33,13 @@ config DEBUG_BOOTMEM
depends on DEBUG_KERNEL
bool "Debug BOOTMEM initialization"
-# We have a custom atomic_dec_and_lock() implementation but it's not
-# compatible with spinlock debugging so we need to fall back on
-# the generic version in that case.
-config HAVE_DEC_LOCK
- bool
- depends on SMP && !DEBUG_SPINLOCK
- default y
+config DEBUG_PAGEALLOC
+ bool "Page alloc debugging"
+ depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
+ help
+ Unmap pages from the kernel linear mapping after free_pages().
+ This results in a large slowdown, but helps to find certain types
+ of memory corruptions.
config MCOUNT
bool
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