linux-kernel - Re: [PATCH] mm/kasan: Print frame description for stack bugs

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Message-ID: <CANpmjNPYoaE6GFC1WC2m1GsGjqWRLfuxdi86dB+NCFeZ93mtOw@mail.gmail.com>
Date:   Wed, 22 May 2019 12:02:46 +0200
From:   Marco Elver <elver@...gle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     kbuild test robot <lkp@...el.com>, kbuild-all@...org,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: [PATCH] mm/kasan: Print frame description for stack bugs

I've sent v3. If possible, please replace current version with v3,
which also includes the fix.

Many thanks,
-- Marco


On Wed, 22 May 2019 at 04:10, Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Sun, 19 May 2019 04:48:21 +0800 kbuild test robot <lkp@...el.com> wrote:
>
> > Hi Marco,
> >
> > Thank you for the patch! Perhaps something to improve:
> >
> > [auto build test WARNING on linus/master]
> > [also build test WARNING on v5.1 next-20190517]
> > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> >
> > url:    https://github.com/0day-ci/linux/commits/Marco-Elver/mm-kasan-Print-frame-description-for-stack-bugs/20190519-040214
> > config: xtensa-allyesconfig (attached as .config)
> > compiler: xtensa-linux-gcc (GCC) 8.1.0
> > reproduce:
> >         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> >         chmod +x ~/bin/make.cross
> >         # save the attached .config to linux build tree
> >         GCC_VERSION=8.1.0 make.cross ARCH=xtensa
> >
> > If you fix the issue, kindly add following tag
> > Reported-by: kbuild test robot <lkp@...el.com>
> >
>
> This, I assume?
>
> --- a/mm/kasan/report.c~mm-kasan-print-frame-description-for-stack-bugs-fix
> +++ a/mm/kasan/report.c
> @@ -230,7 +230,7 @@ static void print_decoded_frame_descr(co
>                 return;
>
>         pr_err("\n");
> -       pr_err("this frame has %zu %s:\n", num_objects,
> +       pr_err("this frame has %lu %s:\n", num_objects,
>                num_objects == 1 ? "object" : "objects");
>
>         while (num_objects--) {
> @@ -257,7 +257,7 @@ static void print_decoded_frame_descr(co
>                 strreplace(token, ':', '\0');
>
>                 /* Finally, print object information. */
> -               pr_err(" [%zu, %zu) '%s'", offset, offset + size, token);
> +               pr_err(" [%lu, %lu) '%s'", offset, offset + size, token);
>         }
>  }
>
> _
>
> --
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