On Tue, 15 May 2012 11:20:19 -0500 Corbin <corbinat@xxxxxxxxx> wrote: > I agree that losing bytes in the software layer wouldn't happen under > normal circumstances, but it is still important to know when it > happens. My understanding was that the overrun field in the port's > icount was for logging hardware overruns, while the buf_overrun field > should be used for software overruns. If this is not the case then is > there another method for determining when the software layer is losing > bytes? It'll occur when the machine cannot even allocate a free page of memory. So you'll get GFP spews in the kernel log to go with it. Alan -- 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