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SubjectRe: [RFC] Dept(Dependency Tracker) Implementation
On Mon, Nov 23, 2020 at 08:05:27PM +0900, Byungchul Park wrote:
> Hi,
>
> This patchset is too nasty to get reviewed in detail for now.

I worked Dept against mainline v5.9.

Thanks,
Byungchul

> This have:
>
> 1. applying Dept to spinlock/mutex/rwlock/completion
> 2. assigning custom keys or disable maps to avoid false positives
>
> This doesn't have yet (but will be done):
>
> 1. proc interfaces e.g. to see dependecies the tool has built,
> 2. applying Dept to rw semaphore and the like,
> 3. applying Dept to lock_page()/unlock_page(),
> 4. assigning custom keys to more places properly,
> 5. replace all manual Lockdep annotations,
> (and so on..)
>
> But I decided to share it to let others able to test how it works and
> someone who wants to see the detail able to check the code. The most
> important thing I'd like to show is what exactly a deadlock detection
> tool should do.
>
> Turn on CONFIG_DEPT to test it. Feel free to leave any questions if you
> have.
>
> Thanks,
> Byungchul

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