When a session leader exits, it hangs up the controlling tty and then signals the foreground group processes with SIGHUP. This sequence can hang as reported by Sasha Levin, and noted in the changelog of 'tty: Signal SIGHUP before hanging up ldisc'. Peter Hurley (5): tty: Refactor session leader SIGHUP from __tty_hangup() tty: Fix spinlock flavor in non-atomic __tty_hangup() tty: Use spin_lock() inside existing critical region tty: Signal foreground group processes in hangup tty: Signal SIGHUP before hanging up ldisc drivers/tty/tty_io.c | 144 ++++++++++++++++++++++++++++++++++----------------- 1 file changed, 96 insertions(+), 48 deletions(-) -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
