linux-kernel - Re: [PATCH 0/9] x86/entry fixes

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Date:   Wed, 3 Jun 2020 15:32:57 +0200
From:   Marco Elver <elver@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Will Deacon <will@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: Re: [PATCH 0/9] x86/entry fixes

On Wed, 3 Jun 2020 at 14:18, Peter Zijlstra <peterz@...radead.org> wrote:
>
> On Wed, Jun 03, 2020 at 02:08:57PM +0200, Marco Elver wrote:
>
> > What is the .config you used? I somehow can't reproduce. I've applied
> > the patches on top of -tip/master.
>
> So tip/master, my patches, your patches, this series.
>
> $ make CC=/opt/llvm/bin/clang O=defconfig-build/ -j80 -s bzImage
>
> is what I used, with the below config.
>

Thanks, can reproduce now. So far I haven't found any indication that
there is a missing check in Clang's instrumentation passes somewhere.
I'm a bit suspicious because both Clang and GCC have this behaviour.
I'll continue looking.

Thanks,
-- Marco