# \[PATCH\] ARM: exynos\_defconfig: disable CONFIG\_EXYNOS5420\_MCPM; not stable

- From: Kevin Hilman \<khilman@kernel.org\>
- Date: 2014-10-31 22:59:41 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2014/10/8698564
- Thread: https://ratatoskr.run/linux-arm-kernel/2014/10/8698564/t.md

```text
From: Kevin Hilman <redacted>

The option CONFIG_EXYNOS5420_MCPM is causing imprecise external aborts
during boot testing, causing various userspace startup failures.

Disable until it has gotten more testing.

Cc: Kukjin Kim <redacted>,
Cc: Javier Martinez Canillas <redacted>,
Cc: Sachin Kamat <redacted>,
Cc: Doug Anderson <dianders@chromium.org>,
Cc: Bartlomiej Zolnierkiewicz <redacted>,
Cc: Krzysztof Kozlowski <redacted>,
Cc: Tushar Behera <redacted>,
Cc: stable at vger.kernel.org # v3.17+
Signed-off-by: Kevin Hilman <redacted>
---
This has been reported by a few people[1], but not investigated or fixed, so it's
time to disable this feature until it can be fixed.

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-September/288344.html

 arch/arm/configs/exynos_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index 72058b8a6f4d..a250dcbf34cd 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -10,7 +10,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_ARCH_EXYNOS=y
 CONFIG_ARCH_EXYNOS3=y
-CONFIG_EXYNOS5420_MCPM=y
+CONFIG_EXYNOS5420_MCPM=n
 CONFIG_SMP=y
 CONFIG_BIG_LITTLE=y
 CONFIG_BL_SWITCHER=y
-- 
2.1.0
```