| Message ID | 20200522020212.23460-1-walter-zh.wu@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | kasan: memorize and print call_rcu stack | expand |
On Fri, May 22, 2020 at 4:02 AM Walter Wu <walter-zh.wu@mediatek.com> wrote: > > Generic KASAN will support to record the last two call_rcu() call stacks > and print them in KASAN report. So that need to update documentation. Reviewed-and-tested-by: Dmitry Vyukov <dvyukov@google.com> > 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 | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst > index c652d740735d..fede42e6536b 100644 > --- a/Documentation/dev-tools/kasan.rst > +++ b/Documentation/dev-tools/kasan.rst > @@ -193,6 +193,9 @@ 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. > + > Software tag-based KASAN > ~~~~~~~~~~~~~~~~~~~~~~~~ > > -- > 2.18.0 > > -- > You received this message because you are subscribed to the Google Groups "kasan-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/20200522020212.23460-1-walter-zh.wu%40mediatek.com.
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst index c652d740735d..fede42e6536b 100644 --- a/Documentation/dev-tools/kasan.rst +++ b/Documentation/dev-tools/kasan.rst @@ -193,6 +193,9 @@ 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. + Software tag-based KASAN ~~~~~~~~~~~~~~~~~~~~~~~~
Generic KASAN will support to record the last two call_rcu() call 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 | 3 +++ 1 file changed, 3 insertions(+)