linux-kernel - Re: stop breaking dosemu (Re: x86/kconfig/32: Rename CONFIG

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Message-ID: <CALCETrXecRAhk1WtipTjn64AoL1OoGGfAV1x-StgZkJzhfxbvQ@mail.gmail.com>
Date:	Wed, 2 Sep 2015 13:55:46 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Stas Sergeev <stsp@...t.ru>
Cc:	Josh Boyer <jwboyer@...oraproject.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Andrew Bird (Sphere Systems)" <ajb@...eresystems.co.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	Brian Gerst <brgerst@...il.com>
Subject: Re: stop breaking dosemu (Re: x86/kconfig/32: Rename CONFIG_VM86 and
 default it to 'n')

On Wed, Sep 2, 2015 at 1:47 PM, Stas Sergeev <stsp@...t.ru> wrote:
> 02.09.2015 23:22, Josh Boyer пишет:
>>
>> On Wed, Sep 2, 2015 at 1:50 PM, Stas Sergeev <stsp@...t.ru> wrote:
>>>
>>> 02.09.2015 20:46, Josh Boyer пишет:
>>>>
>>>> On Wed, Sep 2, 2015 at 10:08 AM, Andy Lutomirski <luto@...capital.net>
>>>> wrote:
>>>>>
>>>>> I'd be amenable to switching the default back to y and perhaps adding
>>>>> a sysctl to make the distros more comfortable.  Ingo, Kees, Brian,
>>>>> what do you think?
>>>>
>>>> Can you please leave the default as N, and have a sysctl option to
>>>> enable it instead?  While dosemu might still be in use, it isn't going
>>>> to be the common case at all.  So from a distro perspective, I think
>>>> we'd probably rather have the default match the common case.
>>>
>>> The fact that fedora doesn't package dosemu, doesn't automatically
>>> mean all other distros do not too. Since when kernel defaults should
>>> match the ones of fedora?
>>
>> I didn't say that.
>
> What you said was:
> ---
>
> While dosemu might still be in use, it isn't going
> to be the common case at all.  So from a distro perspective
>
> ---
> ... which is likely true only in fedora circe.
>
>>    The default right now is N.
>
> In a not yet released kernel, unless I am mistaken.
> If fedora already provides that kernel, other distros likely not.
>
>>    I asked it be left
>> that way.  That's all.
>
> Lets assume its not yet N, unless there was a kernel release already.
> Its easy to get back if its not too late.

How about CONFIG_SYSCTL_VM86_DEFAULT which defaults to Y?  Fedora
could set it to N.

--Andy

-- 
Andy Lutomirski
AMA Capital Management, LLC
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