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mm: Kconfig: Add DEBUG_SLUB_PANIC_ON option

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Add the DEBUG_SLUB_PANIC_ON option to KCONFIG preventing
the existing defconfig option from being overwritten
by make config.

This will induce a panic if slab debug catches corruptions
within the padding of a given object.

The intention here is to induce collection of data
immediately after the corruption is detected with
the goal to catch the possible source of the corruption.

Change-Id: Idffa42de790b9e096e28f7e1f484d86c013d7d83
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
This commit is contained in:
Channagoud Kadabi 2017-03-15 14:26:08 -07:00 committed by Prasad Sodagudi
parent f3dd4aaeb3
commit a84bbf921a
1 changed files with 10 additions and 0 deletions
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10
mm/Kconfig.debug
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@ -31,6 +31,16 @@ config DEBUG_PAGEALLOC
enabled by DEBUG_PAGEALLOC_ENABLE_DEFAULT or the debug_pagealloc
command line parameter.
config SLUB_DEBUG_PANIC_ON
bool "Enable to Panic on SLUB corruption detection"
depends on SLUB_DEBUG
help
SLUB has a resiliency feature enabled which restores bytes in
order for production environments to continue to operate. IN
debug options this may not be desirable as it prevents from
investigating the root cause which may be rooted within cache
or memory.
config DEBUG_PAGEALLOC_ENABLE_DEFAULT
bool "Enable debug page memory allocations by default?"
default n