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Subject: Re: [PATCH v6 0/6] KASan for arm
To:     Linus Walleij <linus.walleij@linaro.org>,
        Florian Fainelli <f.fainelli@gmail.com>
Cc:     Marco Felsch <m.felsch@pengutronix.de>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Michal Hocko <mhocko@suse.com>,
        Julien Thierry <julien.thierry@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Christoffer Dall <christoffer.dall@arm.com>,
        David Howells <dhowells@redhat.com>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Andrey Ryabinin <ryabinin.a.a@gmail.com>,
        Alexander Potapenko <glider@google.com>,
        kvmarm@lists.cs.columbia.edu, Jonathan Corbet <corbet@lwn.net>,
        Abbott Liu <liuwenliang@huawei.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Russell King <linux@armlinux.org.uk>,
        kasan-dev <kasan-dev@googlegroups.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Dmitry Vyukov <dvyukov@google.com>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
        drjones@redhat.com, Vladimir Murzin <vladimir.murzin@arm.com>,
        Kees Cook <keescook@chromium.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Andre Przywara <andre.przywara@arm.com>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        Jinbum Park <jinb.park7@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Sascha Hauer <kernel@pengutronix.de>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Nicolas Pitre <nico@fluxnic.net>,
        Greg KH <gregkh@linuxfoundation.org>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Linux Doc Mailing List <linux-doc@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Rob Landley <rob@landley.net>, philip@cog.systems,
        Andrew Morton <akpm@linux-foundation.org>,
        Thomas Garnier <thgarnie@google.com>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
References: <20190617221134.9930-1-f.fainelli@gmail.com>
 <20191114181243.q37rxoo3seds6oxy@pengutronix.de>
 <7322163f-e08e-a6b7-b143-e9d59917ee5b@gmail.com>
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 <20191115114416.ba6lmwb7q4gmepzc@pengutronix.de>
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From:   Florian Fainelli <f.fainelli@gmail.com>
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Date:   Fri, 17 Jan 2020 11:55:11 -0800
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On 1/17/20 2:13 AM, Linus Walleij wrote:
> On Tue, Nov 19, 2019 at 1:14 AM Florian Fainelli <f.fainelli@gmail.com> wrote:
>> On 11/15/19 3:44 AM, Marco Felsch wrote:
>>>
>>> With your v7 it is working on my imx6 but unfortunately I can't run my
>>> gstreamer testcase. My CPU load goes to 100% after starting gstreamer
>>> and nothing happens.. But the test_kasan module works =) So I decided to
>>> check a imx6quadplus but this target did not boot.. I used another
>>> toolchain for the imx6quadplus gcc-9 instead of gcc-8. So it seems that
>>> something went wrong during compilation. Because you didn't changed
>>> something within the logic.
>>>
>>> I wonder why we must not define the CONFIG_KASAN_SHADOW_OFFSET for arm.
>>
>> That is was oversight. I have pushed updates to the branch here:
>>
>> https://github.com/ffainelli/linux/pull/new/kasan-v7
> 
> I just git Kasan back on my radar because it needs to be fixed some day.
> 
> I took this branch for a ride on some QEMU and some real hardware.
> Here I use the test module and just hacked it into the kernel instead of
> as a module, it then crashes predictably but performs all the KASan
> tests first and it works file, as in provokes the right warnings from
> KASan.
> 
> Tested systems:
> 
> QEMU ARM RealView PBA8
> QEMU ARM RealView PBX A9
> QEMU ARM Versatile AB
> Hardware Integrator CP
> Hardware Versatile AB with IB2
> 
> Can we start to submit these patches to Russell's patch tracker?
> Any more testing I should be doing?

Let me submit and rebase v7 get the auto builders some days to see if it
exposes a new build issue and then we toss it to RMK's patch tracker and
fix bugs from there?
-- 
Florian