[patch 104/200] kasan: update documentation for generic kasan

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
Subject: 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/20201203023037.30792-1-walter-zh.wu@xxxxxxxxxxxx
Signed-off-by: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
Suggested-by: Marco Elver <elver@xxxxxxxxxx>
Acked-by: Marco Elver <elver@xxxxxxxxxx>
Reviewed-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Reviewed-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 Documentation/dev-tools/kasan.rst |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/Documentation/dev-tools/kasan.rst~kasan-update-documentation-for-generic-kasan
+++ a/Documentation/dev-tools/kasan.rst
@@ -190,8 +190,9 @@ function calls GCC directly inserts the
 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
 ~~~~~~~~~~~~~~~~~~~~~~~~
_




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux