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defconfig: 8994: enable CONFIG_DEBUG_SLUB_PANIC_ON 

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: Ide0102d0761022c643a761989360ae5c853870a8
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
This commit is contained in:
David Keitel 2014-10-21 13:51:14 -07:00
parent a65cf5a310
commit 08c53911c5
2 changed files with 11 additions and 1 deletions
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2
arch/arm64/configs/msm8994_defconfig
View File

@ -539,7 +539,6 @@ CONFIG_DEBUG_OBJECTS_WORK=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_SLUB_DEBUG_PANIC_ON=y
CONFIG_DEBUG_KMEMLEAK=y
CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=4000
CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y
@ -554,6 +553,7 @@ CONFIG_FAULT_INJECTION=y
CONFIG_FAIL_PAGE_ALLOC=y
CONFIG_FAULT_INJECTION_DEBUG_FS=y
CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
CONFIG_SLUB_DEBUG_PANIC_ON=y
CONFIG_MSM_RTB=y
CONFIG_MSM_RTB_SEPARATE_CPUS=y
CONFIG_IPC_LOGGING=y

10
mm/Kconfig.debug
View File

@ -17,6 +17,16 @@ config DEBUG_PAGEALLOC
that would result in incorrect warnings of memory corruption after
a resume because free pages are not saved to the suspend image.
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 WANT_PAGE_DEBUG_FLAGS
bool