From: "H. Peter Anvin" <hpa@zytor.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>
Cc: Alex Henrie <alexhenrie24@gmail.com>,
One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
Kees Cook <keescook@chromium.org>,
Doug Johnson <dougvj@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Tyler Hicks <tyhicks@canonical.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arjan van de Ven <arjan@infradead.org>,
Denys Vlasenko <dvlasenk@redhat.com>,
Brian Gerst <brgerst@gmail.com>
Subject: Re: [PATCH v2] x86: Preserve iopl on fork and execve
Date: Tue, 12 May 2015 11:24:12 -0700 [thread overview]
Message-ID: <5552454C.8010702@zytor.com> (raw)
In-Reply-To: <CA+55aFx3RswnjmCErk8QhCo0KrCvxZnuES3WALBR1NkPbUZ8qw@mail.gmail.com>
On 05/12/2015 08:13 AM, Linus Torvalds wrote:
> On Mon, May 11, 2015 at 11:40 PM, Ingo Molnar <mingo@kernel.org> wrote:
>>
>> - Nothing actually broke that people cared about in the last 2.5
>> years, thus this might be one of the (very very rare) cases where
>> preserving a breakage is the right thing to do.
>
> Indeed. The Linux "no regressions" rule is not about some theoretical
> "the ABI changed". It's about actual observed regressions.
>
> So if we can improve the ABI without any user program or workflow
> breaking, that's fine.
>
But Linus, that would break dominix... ;)
-hpa
next prev parent reply other threads:[~2015-05-12 18:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-11 23:38 [PATCH v2] x86: Preserve iopl on fork and execve Alex Henrie
2015-05-12 6:40 ` Ingo Molnar
2015-05-12 15:13 ` Linus Torvalds
2015-05-12 18:24 ` H. Peter Anvin [this message]
2015-05-12 15:24 ` Arjan van de Ven
2015-05-12 15:25 ` Arjan van de Ven
2015-05-12 15:47 ` Austin S Hemmelgarn
2015-05-12 18:05 ` Alex Henrie
2015-05-12 18:12 ` Austin S Hemmelgarn
2015-05-14 10:41 ` Josh Triplett
2015-05-15 0:52 ` H. Peter Anvin
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