Re: [syzbot] [fs?] INFO: task hung in synchronize_rcu (4)

[Tetsuo Handa]

On 2023/05/05 17:35, Peter Zijlstra wrote:
>> Linus, I think that "[PATCH v3 (repost)] locking/lockdep: add debug_show_all_lock_holders()"
>> helps here, but I can't wake up locking people. What can we do?
> 
> How is that not also racy ?

Nobody can make this code racy.

> 
> I think I've seen that patch, and it had a some 'blurb' Changelog that
> leaves me wondering wtf the actual problem is and how it attempts to
> solve it and I went on with looking at regressions because more
> important than random weird patch.

Please respond to
https://lkml.kernel.org/393a440f-5f82-432c-bc24-e8de33e29d75@xxxxxxxxxxxxxxxxxxx .