Re: [PATCH] x86/kconfig/32: Make CONFIG_VM86 default to n and remove EXPERT

On 7/9/2015 11:40 AM, Andy Lutomirski wrote:
> VM86 is entirely broken if ptrace, syscall auditing, or NOHZ_FULL is
> in use. The code is a big undocumented mess, it's a real PITA to
> test, and it looks like a big chunk of vm86_32.c is dead code. It
> also plays awful games with the entry asm.
>
> No one should be using it anyway. Use DOSBOX or KVM instead.
>
> Let's accelerate its slow death. Remove it from EXPERT and default
> it to n. Distros should not enable it. In the unlikely event that
> some user needs it, they can easily re-enable it.
>
> I've confirmed that 'make oldconfig' will set leave it set to y, so
> there should be little or no unexpected breakage from this change.
>

I would rather do BOTH the default n AND the EXPERT

e.g. the existing hurdle of EXPERT combined with the default
(e.g. off entirely in non-EXPERT, and with EXPERT it is sill defaulting to =n)


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/