Hello, We have a machine connected to a modem using the serial port, and from time to time, the modem complains the machine sent him a full 2K buffer (in fact, 2047 bytes) which were already sent.
We've been investigating at the application level, using strace to monitor what is sent to the serial port, and at no time such a buffer is sent. This problem is occuring on a random basis, and attempts to reproduce it in a test environment failed to date. Is it possible to '(log|copy|...)' the chars that are sent on the serial port to some other place (without altering too much the performance of the machine, we are running the port a 9600bps), at the lowest level ? Or is there a known issue of the serial port (or tty) buffer being resent on the line in some weird conditions ? Any change done on ->head and ->tail handling that could fix that ? This problem is with Linux 2.4.27 (I know 2.4.31 is out, but nothing related to that is present in the Changelog) Regards, Paul - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
