Re: [PATCH v2 6/6] kasan: update documentation for generic kasan
From: Marco Elver <elver@google.com>
Date: 2020-08-24 11:46:40
Also in:
linux-mediatek, linux-mm, lkml
On Mon, 24 Aug 2020 at 10:14, Walter Wu [off-list ref] wrote:
quoted hunk ↗ jump to hunk
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 <redacted> Cc: Andrey Ryabinin <redacted> 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel