linux-kernel - Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state in irq ctxt

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Date:	Wed, 04 Jun 2014 15:52:34 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...e.de>
CC:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	ricardo.neri-calderon@...ux.intel.com, tglx@...utronix.de,
	matt.fleming@...el.com, linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/efi] x86/efi: Check for unsafe dealing with FPU state
 in irq ctxt

On 06/04/2014 03:49 PM, Borislav Petkov wrote:
> On Wed, Jun 04, 2014 at 03:17:30PM -0700, H. Peter Anvin wrote:
>> I seem to have lost track of this... does this actually solve
>> anything, or does it just mean we'll explode hard?
> 
> Not that hard - it'll warn once only.
> 
> AFAIR, the discussion stalled but we were going in the direction of not
> calling into efi from pstore in irq context.
> 
> I'd say we drop this until we have a proper solution.
> 

Works for me.

	-hpa

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