linux-kernel - Re: [PATCH v2] x86/fpu: Disable BH while while loading FPU registers in __fpu__restore

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Message-ID: <20181120183443.GJ2527@zn.tnic>
Date:   Tue, 20 Nov 2018 19:34:43 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Sasha Levin <sashal@...nel.org>,
        Victoria Anosova <v.s.anosova@...il.com>
Cc:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>, x86@...nel.org,
        Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v2] x86/fpu: Disable BH while while loading FPU registers
 in __fpu__restore_sig()

On Tue, Nov 20, 2018 at 01:25:30PM +0000, Sasha Levin wrote:
> Hi,
> 
> [This is an automated email]
> 
> This commit has been processed because it contains a -stable tag.
> The stable tag indicates that it's relevant for the following trees: all
> 
> The bot has tested the following trees: v4.19.2, v4.18.19, v4.14.81, v4.9.137, v4.4.163, v3.18.125.
> 
> v4.19.2: Build OK!
> v4.18.19: Build OK!
> v4.14.81: Build OK!
> v4.9.137: Failed to apply! Possible dependencies:
>     Unable to calculate

AFAIR, Victoria asked about this fix a while ago. CCed.

Victoria, do you still need this patch in your 4.9? If so, you might
wanna give it a try:

https://git.kernel.org/tip/68239654acafe6aad5a3c1dc7237e60accfebc03

Let us know if you need help backporting - it should be easy though.

HTH.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.