On Thu, 26 Jul 2012 17:12:31 -0500 Jaeden Amero <jaeden.am...@ni.com> wrote:
> When PARMRK is set and large transfers of characters that will get > marked are being received, n_tty could drop data silently (i.e. > without reporting any error to the client). This is because > characters have the potential to take up to three bytes in the line > discipline (when they get marked with parity or framing errors), but > the amount of free space reported to tty_buffer flush_to_ldisc (via > tty->receive_room) is based on the pre-marked data size. > > With this patch, the n_tty layer will no longer assume that each byte > will only take up one byte in the line discipline. Instead, it will > make an overly conservative estimate that each byte will take up > three bytes in the line discipline when PARMRK is set. > > Signed-off-by: Jaeden Amero <jaeden.am...@ni.com> What a fun corner case. Patch looks good to me. Acked-by: Alan Cox <a...@linux.intel.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
