linux-kernel - [PATCH] selftests: memfd_test: Revised STACK

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Date:	Thu,  1 Oct 2015 15:33:02 +0800
From:	Chunyan Zhang <zhang.chunyan@...aro.org>
To:	shuahkh@....samsung.com
Cc:	linux-api@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] selftests: memfd_test: Revised STACK_SIZE to make it 16-byte aligned

There is a mandate of 16-byte aligned stack on AArch64 [1], so the
STACK_SIZE here should also be 16-byte aligned, otherwise we would
get an error when calling clone().

[1] http://lxr.free-electrons.com/source/arch/arm64/kernel/process.c#L265

Signed-off-by: Chunyan Zhang <zhang.chunyan@...aro.org>
---
 tools/testing/selftests/memfd/memfd_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 0b9eafb..aa5d3eb 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -18,7 +18,7 @@
 #include <unistd.h>
 
 #define MFD_DEF_SIZE 8192
-#define STACK_SIZE 65535
+#define STACK_SIZE 65536
 
 static int sys_memfd_create(const char *name,
 			    unsigned int flags)
-- 
1.9.1

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