From: Ard Biesheuvel <ardb@kernel.org>
To: Guillaume Tucker <guillaume.tucker@collabora.com>
Cc: "kernelci-results@groups.io" <kernelci-results@groups.io>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Nicolas Pitre <nico@fluxnic.net>,
Linus Walleij <linus.walleij@linaro.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
clang-built-linux <clang-built-linux@googlegroups.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: next/master bisection: baseline.login on rk3288-rock2-square
Date: Thu, 4 Feb 2021 16:42:15 +0100 [thread overview]
Message-ID: <CAMj1kXEshuPTrKvN4LpXQMftHJG+yH8+fgU7uVc6GYn0qd8-xA@mail.gmail.com> (raw)
In-Reply-To: <46373679-a149-8a3d-e914-780e4c6ff8be@collabora.com>
On Thu, 4 Feb 2021 at 12:32, Guillaume Tucker
<guillaume.tucker@collabora.com> wrote:
>
> On 04/02/2021 10:33, Guillaume Tucker wrote:
> > On 04/02/2021 10:27, Ard Biesheuvel wrote:
> >> On Thu, 4 Feb 2021 at 11:06, Russell King - ARM Linux admin
> >> <linux@armlinux.org.uk> wrote:
> >>>
> >>> On Thu, Feb 04, 2021 at 10:07:58AM +0100, Ard Biesheuvel wrote:
> >>>> On Thu, 4 Feb 2021 at 09:43, Guillaume Tucker
> >>>> <guillaume.tucker@collabora.com> wrote:
> >>>>>
> >>>>> Hi Ard,
> >>>>>
> >>>>> Please see the bisection report below about a boot failure on
> >>>>> rk3288 with next-20210203. It was also bisected on
> >>>>> imx6q-var-dt6customboard with next-20210202.
> >>>>>
> >>>>> Reports aren't automatically sent to the public while we're
> >>>>> trialing new bisection features on kernelci.org but this one
> >>>>> looks valid.
> >>>>>
> >>>>> The kernel is most likely crashing very early on, so there's
> >>>>> nothing in the logs. Please let us know if you need some help
> >>>>> with debugging or trying a fix on these platforms.
> >>>>>
> >>>>
> >>>> Thanks for the report.
> >>>
> >>> Ard,
> >>>
> >>> I want to send my fixes branch today which includes your regression
> >>> fix that caused this regression.
> >>>
> >>> As this is proving difficult to fix, I can only drop your fix from
> >>> my fixes branch - and given that this seems to be problematical, I'm
> >>> tempted to revert the original change at this point which should fix
> >>> both of these regressions - and then we have another go at getting rid
> >>> of the set/way instructions during the next cycle.
> >>>
> >>> Thoughts?
> >>>
> >>
> >> Hi Russell,
> >>
> >> If Guillaume is willing to do the experiment, and it fixes the issue,
> >
> > Yes, I'm running some tests with that fix now and should have
> > some results shortly.
>
> Yes it does fix the issue:
>
> https://lava.collabora.co.uk/scheduler/job/3173819
>
> with Ard's fix applied to this test branch:
>
> https://gitlab.collabora.com/gtucker/linux/-/commits/next-20210203-ard-fix/
>
>
> +clang +Nick
>
> It's worth mentioning that the issue only happens with kernels
> built with Clang. As you can see there are several other arm
> platforms failing with clang-11 builds but booting fine with
> gcc-8:
>
> https://kernelci.org/test/job/next/branch/master/kernel/next-20210203/plan/baseline/
>
> Here's a sample build log:
>
> https://storage.staging.kernelci.org/gtucker/next-20210203-ard-fix/v5.10-rc4-24722-g58b6c0e507b7-gtucker_single-staging-33/arm/multi_v7_defconfig/clang-11/build.log
>
> Essentially:
>
> make -j18 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LLVM=1 CC="ccache clang" zImage
>
> I believe it should be using the GNU assembler as LLVM_IAS=1 is
> not defined, but there may be something more subtle about it.
>
Do you have a link for a failing zImage built from multi_v7_defconfig?
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-02-04 15:43 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <601b773a.1c69fb81.9f381.a32a@mx.google.com>
2021-02-04 8:43 ` next/master bisection: baseline.login on rk3288-rock2-square Guillaume Tucker
2021-02-04 9:07 ` Ard Biesheuvel
2021-02-04 10:06 ` Russell King - ARM Linux admin
2021-02-04 10:27 ` Ard Biesheuvel
2021-02-04 10:33 ` Guillaume Tucker
2021-02-04 11:32 ` Guillaume Tucker
2021-02-04 11:44 ` Russell King - ARM Linux admin
2021-02-04 12:09 ` Ard Biesheuvel
2021-02-04 15:42 ` Ard Biesheuvel [this message]
2021-02-04 15:53 ` Guillaume Tucker
2021-02-04 16:01 ` Ard Biesheuvel
2021-02-04 18:06 ` Nick Desaulniers
2021-02-04 18:12 ` Nathan Chancellor
2021-02-04 18:23 ` Nick Desaulniers
2021-02-04 21:31 ` Guillaume Tucker
2021-02-04 21:50 ` Russell King - ARM Linux admin
2021-02-05 8:21 ` Ard Biesheuvel
2021-02-05 12:05 ` Ard Biesheuvel
2021-02-06 13:10 ` Guillaume Tucker
2021-02-06 13:12 ` Ard Biesheuvel
2021-02-04 21:09 ` Guillaume Tucker
2021-02-04 10:47 ` Russell King - ARM Linux admin
2021-02-04 10:55 ` Ard Biesheuvel
2021-02-04 12:26 ` Marc Zyngier
2021-02-04 14:09 ` Russell King - ARM Linux admin
2021-02-04 14:25 ` Ard Biesheuvel
2021-02-04 14:36 ` Russell King - ARM Linux admin
2021-02-04 15:52 ` Ard Biesheuvel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAMj1kXEshuPTrKvN4LpXQMftHJG+yH8+fgU7uVc6GYn0qd8-xA@mail.gmail.com \
--to=ardb@kernel.org \
--cc=clang-built-linux@googlegroups.com \
--cc=geert+renesas@glider.be \
--cc=guillaume.tucker@collabora.com \
--cc=kernelci-results@groups.io \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=ndesaulniers@google.com \
--cc=nico@fluxnic.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).