linux-kernel - Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines

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Message-ID: <20160311220313.GG4312@pd.tnic>
Date:	Fri, 11 Mar 2016 23:03:13 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Bryan O'Donoghue <pure.logic@...us-software.ie>,
	Andy Lutomirski <luto@...capital.net>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	Fenghua Yu <fenghua.yu@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Oleg Nesterov <oleg@...hat.com>,
	"Yu, Yu-cheng" <yu-cheng.yu@...el.com>
Subject: Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines

On Fri, Mar 11, 2016 at 10:32:43AM -0800, Linus Torvalds wrote:
> Obvious Ack to the patch, along with a "how did this ever work
> before?" comment..

I had a sarcastic sentence in the commit message which I deleted later:

"Apparently no one had tried the kernel on a 486er after the FPU
rewrite. Backwards compatibility is overrated."

:-)

I'm still wondering, though, why didn't the Quark people scream
earlier... And who knows, it was probably b0rked even before the
FPU rewrite.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.