Re: [PATCH 0/8] make vfork killable/restartable/traceable

Oleg Nesterov
2011-08-11T16:12:39Z

On 08/10, Pavel Machek wrote:
>
> > CLONE_VFORK sleeps in TASK_INTERRUPTIBLE until the child exits/execs.
> > This is obviously not good, it is sooo simple to create the task which
> > doesn't react to SIGKILL/SIGSTOP.
> >
> > Questions:
> >
> > - do we really need this?
> >
> I believe we should fix it. I was always claiming "if it does not
> react to SIGKILL, it is a kernel bug" and well, this just proved me
> wrong...

Agreed.

Just in case... sorry to all for delay, I am busy. I'll try to resend
the simplified version "soon", at least the "unkillable" part. And
we also have the pending oom issues...

Oleg.