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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 17 May 2024 12:22:23 -0700
Message-ID: <CAHk-=whp9ixiDVNvSXRcVWYifXfQaZH9taHxD-i5noppY30e1w@mail.gmail.com>
Subject: Re: [git pull] drm urgent for 6.10-rc1
To: Dave Airlie <airlied@gmail.com>
Cc: "Paneer Selvam, Arunpravin" <arunpravin.paneerselvam@amd.com>, Alex Deucher <alexdeucher@gmail.com>, 
	Daniel Vetter <daniel.vetter@ffwll.ch>, "Deucher, Alexander" <Alexander.Deucher@amd.com>, 
	dri-devel <dri-devel@lists.freedesktop.org>, LKML <linux-kernel@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"

On Thu, 16 May 2024 at 18:08, Dave Airlie <airlied@gmail.com> wrote:
>
> Linus, do you see it a boot straight away?

Ok, back at that computer now, and yes, I see those messages right
away. In fact, they seem to happen before gnome even starts up, ie I
see those messages long before the first messages from gnome-session:

    May 17 12:07:17 tr3970x kernel: WARNING: CPU: 4 PID: 1067 at
drivers/gpu/drm/drm_buddy.c:198 __force_merge+0x184/0x1b0 [drm_buddy]
    .. lots and lots and lots of them ..
    ...
    May 17 12:07:23 tr3970x systemd-cryptsetup[982]: ...
    ...
    May 17 12:07:25 tr3970x systemd[1]: Reached target basic.target
    ...
    May 17 12:07:25 tr3970x systemd[1]: Mounted sysroot.mount - /sysroot.
    ...
    May 17 12:07:25 tr3970x systemd[1]: Switching root.
    ...
    May 17 12:07:36 tr3970x gnome-session[2824]: ..
    ...
    May 17 12:07:36 tr3970x gnome-shell[2836]: Obtained a high
priority EGL context
    May 17 12:07:36 tr3970x kernel: WARNING: CPU: 31 PID: 2836 at
drivers/gpu/drm/drm_buddy.c:198 __force_merge+0x184/0x1b0 [drm_buddy]
    .. lots of warnings resume ...

IOW, it happens already during the graphical boot before I have even
typed in my disk encryption password.

Then it starts again when gnome starts.

I just checked: I have exactly 8192 warnings from the early boot
before the first gnome warning. Which sounds like too round a number
to be an accident.

I will try the patch Alex pointed at next:

    https://patchwork.freedesktop.org/patch/594539/

and see if that fixes it for me.

                 Linus