Re: [PATCH] ptrace: use safer wake up on ptrace_detach()

[Oleg Nesterov]

On 02/01, Roland McGrath wrote:
>
> > Am unable to work out why you tagged it for backporting.  It fixes some
> > observed bug?  Perhaps a regression?
>
> No observed bug,

Well, this bug triggered the problem in practice, this was the reason
for 95a3540d.

> I don't think
> this first change is dangerous for -stable, but I have seen no positive
> rationale for pushing it there.

Agreed, I don't really think -stable needs this change, but otoh
it is obviously safe.

Oleg.

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