syzkaller on risc-v

[Andreas Schwab]

On Jun 30 2020, David Abdurachmanov wrote:

> On Tue, Jun 30, 2020 at 4:38 PM Colin Ian King <colin.king at canonical.com> wrote:
>>
>> I believe I'm also seeing some potential stack smashing issues in the
>> lua engine in ZFS on risc-v. It is taking a while for me to debug, but I
>> don't see the failure on other arches.  Is there a way to bump the stack
>> size up temporarily to test with larger stacks on risc-v?
>
> Dmitry wrote on the original email that the follow solves issues with
> KCOV enabled:
>
> --- a/arch/riscv/include/asm/thread_info.h
> +++ b/arch/riscv/include/asm/thread_info.h
> -#define THREAD_SIZE_ORDER      (1)
> +#define THREAD_SIZE_ORDER      (2)

I think riscv should follow mips and use 16Kb stacks for 64-bit.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab at suse.de
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