diff options
| author | Walter Wu <[email protected]> | 2020-12-14 19:09:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-12-15 12:13:42 -0800 |
| commit | 4784be284adaa516df4144fc919f9bde8200443a (patch) | |
| tree | 9944cf02aecff5ee3ca2d9b8305b5b62e1498d57 | |
| parent | 214c783d593bdb83cc7e3bd9df9c6fe206d82e1c (diff) | |
kasan: update documentation for generic kasan
Generic KASAN also supports to record the last two workqueue stacks and
print them in KASAN report. So that need to update documentation.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Walter Wu <[email protected]>
Suggested-by: Marco Elver <[email protected]>
Acked-by: Marco Elver <[email protected]>
Reviewed-by: Dmitry Vyukov <[email protected]>
Reviewed-by: Andrey Konovalov <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Alexander Potapenko <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Lai Jiangshan <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: Tejun Heo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | Documentation/dev-tools/kasan.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst index 2b68addaadcd..f0b2d65e4b8a 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() and workqueue queuing. Software tag-based KASAN ~~~~~~~~~~~~~~~~~~~~~~~~ |