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From: Alexandre Julliard <julliard@winehq.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Brian Gerst <brgerst@gmail.com>, Ingo Molnar <mingo@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	stable <stable@vger.kernel.org>,
	"H. Peter Anvin" <hpa@linux.intel.com>
Subject: Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
Date: Mon, 14 Apr 2014 09:48:10 +0200	[thread overview]
Message-ID: <87k3aspd1h.fsf@wine.dyndns.org> (raw)
In-Reply-To: <CA+55aFxr_dz3vhko1FPXhZd0ZNeGveX0oSLqUo_wyiVbxatLQw@mail.gmail.com> (Linus Torvalds's message of "Fri, 11 Apr 2014 11:50:10 -0700")

Linus Torvalds <torvalds@linux-foundation.org> writes:

> On Fri, Apr 11, 2014 at 11:45 AM, Brian Gerst <brgerst@gmail.com> wrote:
>>
>> I haven't tested it recently but I do know it has worked on 64-bit
>> kernels.  There is no reason for it not to, the only thing not
>> supported in long mode is vm86.  16-bit protected mode is unchanged.
>
> Afaik 64-bit windows doesn't support 16-bit binaries, so I just
> assumed Wine wouldn't do it either on x86-64. Not for any real
> technical reasons, though.
>
> HOWEVER. I'd like to hear something more definitive than "I haven't
> tested recently". The "we don't break user space" is about having
> actual real *users*, not about test programs.
>
> Are there people actually using 16-bit old windows programs under
> wine? That's what matters.

Yes, there is still a significant number of users, and we still
regularly get bug reports about specific 16-bit apps. It would be really
nice if we could continue to support them on x86-64, particularly since
Microsoft doesn't ;-)

-- 
Alexandre Julliard
julliard@winehq.org

  parent reply	other threads:[~2014-04-14  7:48 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-11 17:36 [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels tip-bot for H. Peter Anvin
2014-04-11 18:12 ` Andy Lutomirski
2014-04-11 18:20   ` H. Peter Anvin
2014-04-11 18:27 ` Brian Gerst
2014-04-11 18:29   ` H. Peter Anvin
2014-04-11 18:35     ` Brian Gerst
2014-04-11 21:16     ` Andy Lutomirski
2014-04-11 21:24       ` H. Peter Anvin
2014-04-11 21:53         ` Andy Lutomirski
2014-04-11 21:59           ` H. Peter Anvin
2014-04-11 22:15             ` Andy Lutomirski
2014-04-11 22:18               ` H. Peter Anvin
2014-04-13  4:20           ` H. Peter Anvin
2014-04-11 21:34       ` Linus Torvalds
2014-04-11 18:41   ` Linus Torvalds
2014-04-11 18:45     ` Brian Gerst
2014-04-11 18:50       ` Linus Torvalds
2014-04-12  4:44         ` Brian Gerst
2014-04-12 17:18           ` H. Peter Anvin
2014-04-12 19:35             ` Borislav Petkov
2014-04-12 19:44               ` H. Peter Anvin
2014-04-12 20:11                 ` Borislav Petkov
2014-04-12 20:34                   ` Brian Gerst
2014-04-12 20:59                     ` Borislav Petkov
2014-04-12 21:13                       ` Brian Gerst
2014-04-12 21:40                         ` Borislav Petkov
2014-04-14  7:21                           ` Ingo Molnar
2014-04-14  9:44                             ` Borislav Petkov
2014-04-14  9:47                               ` Ingo Molnar
2014-04-12 21:53                 ` Linus Torvalds
2014-04-12 22:25                   ` H. Peter Anvin
2014-04-13  2:56                     ` Andi Kleen
2014-04-13  3:02                       ` H. Peter Anvin
2014-04-13  3:13                       ` Linus Torvalds
2014-04-12 20:29             ` Brian Gerst
2014-04-14  7:48         ` Alexandre Julliard [this message]
2014-05-07  9:18           ` Sven Joachim
2014-05-07 10:18             ` Borislav Petkov
2014-05-07 16:57             ` Linus Torvalds
2014-05-07 17:09               ` H. Peter Anvin
2014-05-07 17:50                 ` Alexandre Julliard
2014-05-08  6:43                 ` Sven Joachim
2014-05-08 13:50                   ` H. Peter Anvin
2014-05-08 20:13                     ` H. Peter Anvin
2014-05-08 20:40                     ` H. Peter Anvin
2014-05-12 13:16               ` Josh Boyer
2014-05-12 16:52                 ` H. Peter Anvin
2014-05-14 23:43               ` [tip:x86/urgent] x86-64, modify_ldt: Make support for 16-bit segments a runtime option tip-bot for Linus Torvalds
2014-04-11 18:46     ` [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels H. Peter Anvin
2014-04-14  7:27       ` Ingo Molnar
2014-04-14 15:45         ` H. Peter Anvin
2014-04-13  2:54     ` Andi Kleen

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