linux-kernel - Re: Regression with mainline kernel on rpi4

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Message-ID: <CADVatmNi+jN+EwiWuoDoocZFyErDVNt1ND0BxtjuKiV63aNuJg@mail.gmail.com>
Date:   Mon, 20 Sep 2021 17:35:00 +0100
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     Emma Anholt <emma@...olt.net>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Regression with mainline kernel on rpi4

On Mon, Sep 20, 2021 at 4:53 PM Maxime Ripard <maxime@...no.tech> wrote:
>
> On Mon, Sep 20, 2021 at 05:43:33PM +0200, Maxime Ripard wrote:
> > On Mon, Sep 20, 2021 at 04:47:31PM +0200, Maxime Ripard wrote:
> > > On Sat, Sep 04, 2021 at 10:40:29AM +0100, Sudip Mukherjee wrote:
> > > > Hi Maxime,
> > > >
> > > > On Sat, Sep 4, 2021 at 10:10 AM Maxime Ripard <maxime@...no.tech> wrote:
> > > > >
> > > > > On Fri, Sep 03, 2021 at 09:09:50PM +0100, Sudip Mukherjee wrote:
> > > > > > Hi Maxime,
> > > > > >
> > > > > > On Fri, Sep 3, 2021 at 5:03 PM Maxime Ripard <maxime@...no.tech> wrote:
> > > > > > >
> > > > > > > Hi Sudip,
> > > > > > >
> > > > > > > On Thu, Sep 02, 2021 at 10:08:19AM +0100, Sudip Mukherjee wrote:
> > > > > > > > Hi All,
> > > > > > > >
> > > > > > >
> > > > > >
> > > > > > <snip>
> > > > > >
> > > > > > >
> > > > > > > >
> > > > > > > > You can see the complete dmesg at
> > > > > > > > https://openqa.qa.codethink.co.uk/tests/76#step/dmesg/8
> > > > > > >
> > > > > > > What test were you running?
> > > > > >
> > > > > > Nothing particular, its just a boot test that we do every night after
> > > > > > pulling from torvalds/linux.git
> > > > >
> > > > > What are you booting to then?
> > > >
> > > > I am not sure I understood the question.
> > > > Its an Ubuntu image. The desktop environment is gnome. And as
> > > > mentioned earlier, we use the HEAD of linus tree every night to boot
> > > > the rpi4 and test that we can login via desktop environment and that
> > > > there is no regression in dmesg.
> > >
> > > Looking at the CI, this isn't from a RPi but from qemu?

No, this is from rpi4 board (4GB), not qemu. The CI is a little
complicated here, lava boots the board with the new kernel and will
then trigger the openQA job. openQA will then connect to the board
using vnc to test the desktop. This is the last link that I sent to
Linus when he asked for it.
https://lava.qa.codethink.co.uk/scheduler/job/164#L1356

And this is the lava job for today -
https://lava.qa.codethink.co.uk/scheduler/job/173

> > >
> > > What defconfig are you using? How did you generate the Ubuntu image?
> > > Through debootstrap? Any additional package?

Its the default ubuntu config. I can send you the config if you want.

> >
> > So qemu (at least on Fedora 34) doesn't seem to have an RPI4 target, nor
> > upstream:
> > https://github.com/qemu/qemu/blob/079b1252e9de384385c9da910262312ec2e574c8/hw/arm/raspi.c#L367
> >

Like I said, its not on qemu.

> > I've tested an Ubuntu 21.04 arm64 build (since it seems like it's what
> > you've been using), built using debootstrap + ubuntu-desktop, both with
> > and without a monitor attached, and up to the desktop once logged in.

I am using the official ubuntu image downloaded from
https://cdimage.ubuntu.com/releases/21.04/release/ubuntu-21.04-preinstalled-desktop-arm64+raspi.img.xz


-- 
Regards
Sudip