[XS] Change in coreboot[main]: arch/x86: Disable DEBUG_STACK_OVERFLOW_BREAKPOINTS_IN_ALL_STAGES

[Patrick Rudolph (Code Review)]

Attention is currently required from: Jérémy Compostella.

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/85594?usp=email )

Change subject: arch/x86: Disable DEBUG_STACK_OVERFLOW_BREAKPOINTS_IN_ALL_STAGES
......................................................................

arch/x86: Disable DEBUG_STACK_OVERFLOW_BREAKPOINTS_IN_ALL_STAGES

Disable the debug code as there were unexplainable stack corruptions
detected on some platforms.

No problems were observed on:
- QEMU
- Xeon-SP

Change-Id: I1f1b9f01af7fbb0c19becf6ea53d436898584c5e
Signed-off-by: Patrick Rudolph 
---
M src/arch/x86/Kconfig
1 file changed, 4 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/85594/1

diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig
index 2077405..7ef1a6d 100644
--- a/src/arch/x86/Kconfig
+++ b/src/arch/x86/Kconfig
@@ -377,8 +377,11 @@

config DEBUG_STACK_OVERFLOW_BREAKPOINTS_IN_ALL_STAGES
    bool
-	default y
+	default n
    depends on DEBUG_STACK_OVERFLOW_BREAKPOINTS && DEBUG_HW_BREAKPOINTS_IN_ALL_STAGES
+	help
+	  Disabled as false-positive stack corruptions where observed on some platforms.
+	  TODO: Investigate those reported errors before defaulting to yes.

# Some EC need an "EC firmware pointer" (a data structure hinting the address
 # of its firmware blobs) being put at a fixed position. Its space