linux-kernel - RE: [bug/bisected] commit a2848d08742c8e8494675892c02c0d22acbe3cf8 cause general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI

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Date:   Wed, 19 Jul 2023 01:21:26 +0000
From:   "Chen, Guchun" <Guchun.Chen@....com>
To:     Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
CC:     "Koenig, Christian" <Christian.Koenig@....com>,
        "Pelloux-Prayer, Pierre-Eric" <Pierre-eric.Pelloux-prayer@....com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>
Subject: RE: [bug/bisected] commit a2848d08742c8e8494675892c02c0d22acbe3cf8
 cause general protection fault, probably for non-canonical address
 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI

[Public]

Thank for your test, Mike. After getting RB for this patch, I will ask Christian to apply it to corresponding branches like drm-misc-next.

Regards,
Guchun

> -----Original Message-----
> From: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
> Sent: Tuesday, July 18, 2023 5:17 PM
> To: Chen, Guchun <Guchun.Chen@....com>
> Cc: Koenig, Christian <Christian.Koenig@....com>; Pelloux-Prayer, Pierre-
> Eric <Pierre-eric.Pelloux-prayer@....com>; Deucher, Alexander
> <Alexander.Deucher@....com>; amd-gfx list <amd-
> gfx@...ts.freedesktop.org>; Linux List Kernel Mailing <linux-
> kernel@...r.kernel.org>
> Subject: Re: [bug/bisected] commit
> a2848d08742c8e8494675892c02c0d22acbe3cf8 cause general protection
> fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1]
> PREEMPT SMP KASAN NOPTI
>
> On Tue, Jul 18, 2023 at 7:13 AM Chen, Guchun <Guchun.Chen@....com>
> wrote:
> >
> > [Public]
> >
> > Hello Mike,
> >
> > I guess this patch can resolve your problem.
> > https://patchwork.freedesktop.org/patch/547897/
> >
> > Regards,
> > Guchun
> >
>
> Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@...il.com> Thanks, the
> issue was gone with this patch.
>
> I didn't say anything above about how to reproduce this problem.
> Case was like this:
> On a dual GPU laptop, I ran Google Chrome on a discrete graphics card.
> I used for it this command:
> $ DRI_PRIME=1 google-chrome-unstable --disable-features=Vulkan
>
> --
> Best Regards,
> Mike Gavrilov.