On 04.12.2012 11:07, Peter Hurley wrote: > > The most common cause stems from the n_tty_close() path spuriously > scheduling buffer work, when the ldisc has already been halted. > This is fixed in 'tty: Don't reschedule buffer work while closing' Thank you, very useful. Fix this: WARNING: at drivers/tty/tty_buffer.c:429 flush_to_ldisc+0x52/0x192() Hardware name: P5K Premium tty is NULL ... Pid: 1394, comm: kworker/0:2 Tainted: P W O 3.7.0-rc8-next-20121210-debtty.1+ #4 Call Trace: [<ffffffff8102d2f8>] warn_slowpath_common+0x80/0x98 [<ffffffff8102d3a4>] warn_slowpath_fmt+0x41/0x43 [<ffffffff8119c53a>] flush_to_ldisc+0x52/0x192 [<ffffffff812594bd>] ? __schedule+0x5dd/0x60c [<ffffffff8103f146>] process_one_work+0x1c1/0x279 [<ffffffff8119c4e8>] ? tty_buffer_free_all+0x4d/0x4d [<ffffffff8104104b>] worker_thread+0x154/0x24e [<ffffffff81040ef7>] ? manage_workers+0x26c/0x26c [<ffffffff810446ef>] kthread+0xb0/0xb8 [<ffffffff8104463f>] ? kthread_parkme+0x1f/0x1f [<ffffffff8125f7ec>] ret_from_fork+0x7c/0xb0 [<ffffffff8104463f>] ? kthread_parkme+0x1f/0x1f -- 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