linux-kernel - Re: Q: selinux_bprm_committed_creds() && signals/do

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Message-Id: <20090504173422.45B9FFC32F@magilla.sf.frob.com>
Date:	Mon,  4 May 2009 10:34:22 -0700 (PDT)
From:	Roland McGrath <roland@...hat.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	David Howells <dhowells@...hat.com>,
	Eric Paris <eparis@...isplace.org>,
	James Morris <jmorris@...ei.org>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	linux-kernel@...r.kernel.org
Subject: Re: Q: selinux_bprm_committed_creds() && signals/do_wait

> On 04/30, Roland McGrath wrote:
> >
> > This is related to the issue of racing stop signals lost by de_thread().
> > That is still on our back-burner list to think about more deeply one day.
> 
> Hmm. did you mean "lost by selinux_bprm_committed_creds()" ?

No, that is the separate issue we are dealing with now.

> Or do we really have some problems with SIGSTOP && de_thread() ?

Yes, this is an old subject (you've forgotten! ;-) and not really apropos
to this thread.  Let's discuss it separately (and like I said, not a top
priority right now).  (The problem is with another thread having just
dequeued a stop signal when exec comes along.)


Thanks,
Roland
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