Please check the V2 in which I add the reporter.
And thanks libin for reporting it :)
Thanks,
Yong
On Tue, May 20, 2014 at 04:09:04PM +0800, Yong Zhang wrote:
> From: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>
>
> asid_cache must be unsigned long otherwise on 64bit system
> it will become 0 if the value in get_new_mmu_context()
> reaches 0xffffffff and in the end the assumption of
> ASID_FIRST_VERSION is not true anymore thus leads to
> more dangerous things.
>
> Signed-off-by: Yong Zhang <yong.zhang@xxxxxxxxxxxxx>
> ---
> arch/mips/include/asm/cpu-info.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
> index f6299be..ebcc2ed 100644
> --- a/arch/mips/include/asm/cpu-info.h
> +++ b/arch/mips/include/asm/cpu-info.h
> @@ -40,7 +40,7 @@ struct cache_desc {
>
> struct cpuinfo_mips {
> unsigned int udelay_val;
> - unsigned int asid_cache;
> + unsigned long asid_cache;
>
> /*
> * Capability and feature descriptor structure for MIPS CPU
> --
> 1.7.9.5
