From: Marco Elver <elver@google.com>
To: Walter Wu <walter-zh.wu@mediatek.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Jonathan Corbet <corbet@lwn.net>,
kasan-dev <kasan-dev@googlegroups.com>,
Linux Memory Management List <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
wsd_upstream <wsd_upstream@mediatek.com>,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v2 6/6] kasan: update documentation for generic kasan
Date: Mon, 24 Aug 2020 13:46:25 +0200 [thread overview]
Message-ID: <CANpmjNOSKQi+wYbCVYqL-LriqCD37GtOfrArB0hyKysaPYyzGQ@mail.gmail.com> (raw)
In-Reply-To: <20200824081433.25198-1-walter-zh.wu@mediatek.com>
On Mon, 24 Aug 2020 at 10:14, Walter Wu <walter-zh.wu@mediatek.com> wrote:
>
> Generic KASAN support to record the last two timer and workqueue
> stacks and print them in KASAN report. So that need to update
> documentation.
>
> Signed-off-by: Walter Wu <walter-zh.wu@mediatek.com>
> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
> Cc: Dmitry Vyukov <dvyukov@google.com>
> Cc: Alexander Potapenko <glider@google.com>
> Cc: Jonathan Corbet <corbet@lwn.net>
> ---
> Documentation/dev-tools/kasan.rst | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
> index fede42e6536b..5a4c5da8bda8 100644
> --- a/Documentation/dev-tools/kasan.rst
> +++ b/Documentation/dev-tools/kasan.rst
> @@ -193,8 +193,8 @@ function calls GCC directly inserts the code to check the shadow memory.
> This option significantly enlarges kernel but it gives x1.1-x2 performance
> boost over outline instrumented kernel.
>
> -Generic KASAN prints up to 2 call_rcu() call stacks in reports, the last one
> -and the second to last.
> +Generic KASAN prints up to 2 call_rcu() call stacks, timer queueing stacks,
> +or workqueue queueing stacks in reports, the last one and the second to last.
We could make this more readable by writing something like this:
"Generic KASAN also reports the last 2 call stacks to creation of work
that potentially has access to an object. Call stacks for the
following are shown: call_rcu(), timer and workqueue queuing."
Thanks,
-- Marco
prev parent reply other threads:[~2020-08-24 11:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-24 8:14 [PATCH v2 6/6] kasan: update documentation for generic kasan Walter Wu
2020-08-24 11:46 ` Marco Elver [this message]
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