Re: [PATCH 07/16] signal: Wake up the designated parent

Oleg Nesterov
2022-05-24T16:28:09Z

On 05/24, Oleg Nesterov wrote:
>
> I fail to understand this patch...
>
> On 05/18, Eric W. Biederman wrote:
> >
> > Today if a process is ptraced only the ptracer will ever be woken up in
> > wait
>
> and why is this wrong?
>
> > Fixes: 75b95953a569 ("job control: Add @for_ptrace to do_notify_parent_cldstop()")
>
> how does this change fix 75b95953a569?

OK, I guess you mean the 2nd do_notify_parent_cldstop() in ptrace_stop(),
the problematic case is current->ptrace = T. Right?

I dislike this patch anyway, but let me think more about it.

Oleg.