[PATCH v3 6/6] kasan: update documentation for generic kasan
From: Walter Wu <hidden>
Date: 2020-08-25 02:02:18
Also in:
linux-mediatek, linux-mm, lkml
Subsystem:
documentation, documentation process, kasan, the rest · Maintainers:
Jonathan Corbet, Andrey Ryabinin, Linus Torvalds
Generic KASAN also supports 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> Suggested-by: Marco Elver <elver@google.com> Cc: Andrey Ryabinin <redacted> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Jonathan Corbet <corbet@lwn.net> --- v3: - Thanks for Macro suggestion --- Documentation/dev-tools/kasan.rst | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 38fd5681fade..698ccb65e634 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst@@ -190,8 +190,9 @@ 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. +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. Software tag-based KASAN ~~~~~~~~~~~~~~~~~~~~~~~~
--
2.18.0
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