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

From: Oleg Nesterov
Date: Thu Aug 11 2011 - 12:12:42 EST

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...


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...


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