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Message-ID: <Ym+sMv5NUOhmLVPH@debian9.Home>
Date: Mon, 2 May 2022 11:02:26 +0100
From: Filipe Manana <fdmanana@...nel.org>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
Filipe Manana <fdmanana@...e.com>
Subject: Re: [patch 0/3] x86/fpu: Prevent FPU state corruption
On Sun, May 01, 2022 at 09:31:42PM +0200, Thomas Gleixner wrote:
> The recent changes in the random code unearthed a long standing FPU state
> corruption due do a buggy condition for granting in-kernel FPU usage.
Thanks for fixing this. I had been reliably hitting that fpu state splat
since 5.18-rc1 with fstests, and was annoying because it made a few tests
fail (fstests reports a failure whenever there's a splat or warning in
dmesg).
I confirm that with this patchset applied the issue no longer happens and
everything seems to be working fine, so:
Tested-by: Filipe Manana <fdmanana@...e.com>
>
> The following series addresses this issue and makes the code more robust.
>
> Thanks,
>
> tglx
> ---
> arch/um/include/asm/fpu/api.h | 2
> arch/x86/include/asm/fpu/api.h | 21 +-------
> arch/x86/include/asm/simd.h | 2
> arch/x86/kernel/fpu/core.c | 92 +++++++++++++++++++-----------------
> net/netfilter/nft_set_pipapo_avx2.c | 2
> 5 files changed, 57 insertions(+), 62 deletions(-)
>
>
>
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