linux-kernel - Re: Got FPU related warning on Intel Quark during boot

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Message-ID: <20160310164924.GC26708@pd.tnic>
Date:	Thu, 10 Mar 2016 17:49:24 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Bryan O'Donoghue <pure.logic@...us-software.ie>
Cc:	Andy Shevchenko <andy.shevchenko@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	Andy Lutomirski <luto@...capital.net>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"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: Got FPU related warning on Intel Quark during boot

On Thu, Mar 10, 2016 at 03:45:21PM +0000, Bryan O'Donoghue wrote:
> It works but user-space FPU is broken; something's wrong with the
> initial state of the FPU regs - it looks as though they aren't being
> properly initialized and FPU context in the signal handler is wrong
> too.

What does your test prog say when you boot linux-next with
"eagerfpu=off" and *without* my fix?

-- 
Regards/Gruss,
    Boris.

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