Re: [PATCH] riscv: use 16KB kernel stack on 64-bit

Anup Patel
2020-07-06T13:32:26Z

On Mon, Jul 6, 2020 at 6:02 PM Andreas Schwab <schwab@suse.de> wrote:
>
> With the current 8KB stack size there are frequent overflows in a 64-bit
> configuration.
>
> Signed-off-by: Andreas Schwab <schwab@suse.de>
> ---
> arch/riscv/include/asm/thread_info.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
> index 1dd12a0cbb2b..464a2bbc97ea 100644
> --- a/arch/riscv/include/asm/thread_info.h
> +++ b/arch/riscv/include/asm/thread_info.h
> @@ -12,7 +12,11 @@
> #include <linux/const.h>
>
> /* thread information allocation */
> +#ifdef CONFIG_64BIT
> +#define THREAD_SIZE_ORDER (2)
> +#else
> #define THREAD_SIZE_ORDER (1)
> +#endif
> #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
>
> #ifndef __ASSEMBLY__
> --
> 2.26.2
>
>
> --
> Andreas Schwab, SUSE Labs, schwab@suse.de
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."

Looks good to me.

Reviewed-by: Anup Patel <anup@brainfault.org>

Regards,
Anup