| Message ID | 20200824081433.25198-1-walter-zh.wu@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | kasan: add workqueue and timer stack for generic KASAN | expand |
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
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. Software tag-based KASAN ~~~~~~~~~~~~~~~~~~~~~~~~
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(-)