Re: hangup in close(2) after posix_openpt(3)

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Sun, Oct 18, 2015 at 03:27:07AM +0900, Izumi Tsutsui wrote:
> joerg@ wrote:
> 
> > On Sat, Oct 17, 2015 at 03:23:44PM +0900, Izumi Tsutsui wrote:
> > > I notice we can avoid the hangup in lwp_park() after exit(3)
> > > by calling _exit(2) instead exit(3) in the parent canuum,
> > > so I'll put it as a kludge for now.
> > 
> > Be careful, that bypasses all atexit handler. The reason why it might
> > work is that this includes the fflush of stdin and stdout.
> 
> Do you have any idea about "hangup in lwp_park() after exit(3)"?
> Is it a bug, or expected behavior?

Certainly not expected behavior. Can you get a backtrace from the
affected process?

Joerg