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Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention

Started byAndy Lutomirski <luto@amacapital.net>
First post2016-01-04 19:40 +0100
Last post2016-01-05 08:00 +0100
Articles 5 — 4 participants

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  Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention Andy Lutomirski <luto@amacapital.net> - 2016-01-04 19:40 +0100
    Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling  convention "H. Peter Anvin" <hpa@zytor.com> - 2016-01-04 19:50 +0100
      Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention Andy Lutomirski <luto@amacapital.net> - 2016-01-04 20:10 +0100
      Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention Linus Torvalds <torvalds@linux-foundation.org> - 2016-01-04 20:30 +0100
        RE: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER  calling convention "Zhuo, Qiuxu" <qiuxu.zhuo@intel.com> - 2016-01-05 08:00 +0100

#1300955 — Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention

FromAndy Lutomirski <luto@amacapital.net>
Date2016-01-04 19:40 +0100
SubjectRe: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention
Message-ID<qNicX-79x-37@gated-at.bofh.it>
On Mon, Dec 21, 2015 at 7:10 AM, tip-bot for Andy Lutomirski
<tipbot@zytor.com> wrote:
> Commit-ID:  30bfa7b3488bfb1bb75c9f50a5fcac1832970c60
> Gitweb:     http://git.kernel.org/tip/30bfa7b3488bfb1bb75c9f50a5fcac1832970c60
> Author:     Andy Lutomirski <luto@kernel.org>
> AuthorDate: Wed, 16 Dec 2015 23:18:48 -0800
> Committer:  Thomas Gleixner <tglx@linutronix.de>
> CommitDate: Mon, 21 Dec 2015 16:05:01 +0100
>
> x86/entry: Restore traditional SYSENTER calling convention

This is still missing from Linus' tree AFAICT, and I'm a bit nervous
about it landing in 4.4 without ever showing up in a -rc.

--Andy
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#1300959 — Re: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention

From"H. Peter Anvin" <hpa@zytor.com>
Date2016-01-04 19:50 +0100
SubjectRe: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention
Message-ID<qNimC-7d3-1@gated-at.bofh.it>
In reply to#1300955
On 01/04/2016 10:31 AM, Andy Lutomirski wrote:
> On Mon, Dec 21, 2015 at 7:10 AM, tip-bot for Andy Lutomirski
> <tipbot@zytor.com> wrote:
>> Commit-ID:  30bfa7b3488bfb1bb75c9f50a5fcac1832970c60
>> Gitweb:     http://git.kernel.org/tip/30bfa7b3488bfb1bb75c9f50a5fcac1832970c60
>> Author:     Andy Lutomirski <luto@kernel.org>
>> AuthorDate: Wed, 16 Dec 2015 23:18:48 -0800
>> Committer:  Thomas Gleixner <tglx@linutronix.de>
>> CommitDate: Mon, 21 Dec 2015 16:05:01 +0100
>>
>> x86/entry: Restore traditional SYSENTER calling convention
> 
> This is still missing from Linus' tree AFAICT, and I'm a bit nervous
> about it landing in 4.4 without ever showing up in a -rc.
> 

Linus has frequently stated that if it is something that is critical
enough for stable, it is critical enough for final.  Linus will decide
if an additional -rc is needed for that reason.

	-hpa


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#1300979

FromAndy Lutomirski <luto@amacapital.net>
Date2016-01-04 20:10 +0100
Message-ID<qNiFZ-7z5-39@gated-at.bofh.it>
In reply to#1300959
On Mon, Jan 4, 2016 at 10:48 AM, H. Peter Anvin <hpa@zytor.com> wrote:
> On 01/04/2016 10:31 AM, Andy Lutomirski wrote:
>> On Mon, Dec 21, 2015 at 7:10 AM, tip-bot for Andy Lutomirski
>> <tipbot@zytor.com> wrote:
>>> Commit-ID:  30bfa7b3488bfb1bb75c9f50a5fcac1832970c60
>>> Gitweb:     http://git.kernel.org/tip/30bfa7b3488bfb1bb75c9f50a5fcac1832970c60
>>> Author:     Andy Lutomirski <luto@kernel.org>
>>> AuthorDate: Wed, 16 Dec 2015 23:18:48 -0800
>>> Committer:  Thomas Gleixner <tglx@linutronix.de>
>>> CommitDate: Mon, 21 Dec 2015 16:05:01 +0100
>>>
>>> x86/entry: Restore traditional SYSENTER calling convention
>>
>> This is still missing from Linus' tree AFAICT, and I'm a bit nervous
>> about it landing in 4.4 without ever showing up in a -rc.
>>
>
> Linus has frequently stated that if it is something that is critical
> enough for stable, it is critical enough for final.  Linus will decide
> if an additional -rc is needed for that reason.

True.  It's also been in -next for a while, although the number of
32-bit -next testers over the holidays might not be that high.

--Andy
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#1300992

FromLinus Torvalds <torvalds@linux-foundation.org>
Date2016-01-04 20:30 +0100
Message-ID<qNiZk-7GT-17@gated-at.bofh.it>
In reply to#1300959
On Mon, Jan 4, 2016 at 10:48 AM, H. Peter Anvin <hpa@zytor.com> wrote:
>
> Linus has frequently stated that if it is something that is critical
> enough for stable, it is critical enough for final.  Linus will decide
> if an additional -rc is needed for that reason.

So it would have been good to have it in an -rc, but at the same time
I'm not particularly worried about this one.

It's not like it's complicated, and I'm assuming it got tested and
passed all our current test-cases (which are much more complete than
anything we've ever had historically).

                     Linus
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#1301301 — RE: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention

From"Zhuo, Qiuxu" <qiuxu.zhuo@intel.com>
Date2016-01-05 08:00 +0100
SubjectRE: [tip:x86/urgent] x86/entry: Restore traditional SYSENTER calling convention
Message-ID<qNtL4-6GK-1@gated-at.bofh.it>
In reply to#1300992
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