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From: Borislav Petkov <bp@alien8.de>
To: Barret Rhoden <brho@google.com>, austin@google.com
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Rik van Riel <riel@surriel.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>
Subject: Re: AVX register corruption from signal delivery
Date: Tue, 26 Nov 2019 23:13:53 +0100
Message-ID: <20191126221328.GH31379@zn.tnic> (raw)
In-Reply-To: <e4d6406b-0d47-5cc5-f3a8-6d14bd90760b@google.com>

On Tue, Nov 26, 2019 at 04:23:40PM -0500, Barret Rhoden wrote:
> Thanks; config attached.  I've been able to recreate it in QEMU with at
> least 2 cores.

Yap, I can too, in my VM.

Btw, would you guys like to submit that reproducer test program

https://bugzilla.kernel.org/attachment.cgi?id=286073

into the kernel selftests pile here:

tools/testing/selftests/x86/

?

It needs proper cleanup to fit kernel coding style but it could be a
good start for collecting interesting FPU test cases...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

  reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-26 19:49 Barret Rhoden
2019-11-26 20:20 ` Sebastian Andrzej Siewior
2019-11-26 21:23   ` Barret Rhoden
2019-11-26 22:13     ` Borislav Petkov [this message]
2019-11-26 22:30       ` Andy Lutomirski
2019-11-26 23:00         ` Borislav Petkov
2019-11-27 12:42     ` [PATCH] x86/fpu: Don't cache access to fpu_fpregs_owner_ctx Sebastian Andrzej Siewior
2019-11-27 14:07       ` Borislav Petkov
2019-11-27 18:42         ` Barret Rhoden
2019-11-28  8:53           ` [PATCH v2] " Sebastian Andrzej Siewior
2019-11-28  9:22             ` [tip: x86/urgent] " tip-bot2 for Sebastian Andrzej Siewior
2019-11-29 16:57             ` [PATCH v2] " David Laight
2019-11-29 17:08               ` 'Sebastian Andrzej Siewior'
2019-11-27 15:46       ` [PATCH] " Rik van Riel

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