Re: [PATCH v3 2/6] workqueue: kasan: record workqueue stack

[Tejun Heo]

On Tue, Aug 25, 2020 at 09:58:33AM +0800, Walter Wu wrote:
> Records the last two enqueuing work call stacks in order to print them
> in KASAN report. It is useful for programmers to solve use-after-free
> or double-free memory workqueue issue.
> 
> For workqueue it has turned out to be useful to record the enqueuing
> work call stacks. Because user can see KASAN report to determine
> whether it is root cause. They don't need to enable debugobjects,
> but they have a chance to find out the root cause.
> 
> Signed-off-by: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
> Suggested-by: Marco Elver <elver@xxxxxxxxxx>
> Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
> Cc: Alexander Potapenko <glider@xxxxxxxxxx>
> Cc: Tejun Heo <tj@xxxxxxxxxx>
> Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

-- 
tejun