On Wed, Mar 18, 2015 at 05:41:57PM +0000, Dave P Martin wrote: > * uart_wait_until_sent()'s timeout calculations aim to wait for > no longer than it takes the FIFO to drain. However, this function > can get called when the serial_core xmit queue for the port is > very non-empty -- meaning that the FIFO continues to be topped > up for some time. This can cause more data to be lost. The code used to wait for the xmit queue to empty (up to closing_wait) before shutting the port down, which defaulted to 30 seconds. If the xmit queue doesn't drain in 30 seconds, it probably never will. -- FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up according to speedtest.net. -- 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
