Re: [PATCH] tty: Only hangup once

[One Thousand Gnomes]

> I doubt this is caused by a race condition; the first hangup would do most
> of the destruction regardless, and a second hangup can't really race with
> the first because of the tty_lock() held for most of the hangup.
> 
> In any event, it's worth discovering what state a subsequent hangup can
> effect that the first hangup left incomplete. I'll look into it.
> 
> Regards,
> Peter Hurley

disassociate_ctty races with tty_hangup.

tty->pgrp is only protected by ctrl_lock

See no_tty and the FIXME note. Sorry the FIXME wasn't clearer.


Alan
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