Re: [PATCH] selftests: memfd_test: Revised STACK_SIZE to make it 16-byte aligned
From: Chunyan Zhang
Date: Wed Oct 14 2015 - 23:22:21 EST
Hello Shuah,
Can this patch be allowed to merge into next realse?
Thanks,
Chunyan
On Thu, Oct 1, 2015 at 3:33 PM, Chunyan Zhang <zhang.chunyan@xxxxxxxxxx> wrote:
> 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@xxxxxxxxxx>
> ---
> 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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