BTW: all interfaces work fine with our old kernel version 2.6.15. Tobias -------- Original-Nachricht -------- > Datum: Wed, 18 Jul 2012 08:37:04 +0200 > Von: "Tobias Arp" <tobiasarp@xxxxxx> > An: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> > CC: linux-serial@xxxxxxxxxxxxxxx > Betreff: Re: ST16C654 stoppes transmitting after a while > The serial links are all set up to 115200 baud. > > Dumping out the tty-struct when it hangs shows me this: > > magic: 0x5401 > name: ttyS0 > flags: 0x00000A00 > count: 1 > stopped: 0 > hw_stopped: 1 > flow_stopped: 0 > packet: 0 > low_latency: 0 > warned: 0 > ctrl_status: 0x00 > receive_room: 4095 > ... > > It is a little bit strange that always the null modem connection shows > this behaviour. May be it's because it has the highest data transfer rate (all > other connections are made by isdn modems / 1-channel isdn)? > > > > > -------- Original-Nachricht -------- > > Datum: Tue, 17 Jul 2012 17:38:47 +0100 > > Von: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> > > An: "Tobias Arp" <tobiasarp@xxxxxx> > > CC: linux-serial@xxxxxxxxxxxxxxx > > Betreff: Re: ST16C654 stoppes transmitting after a while > > > On Tue, 17 Jul 2012 13:36:03 +0200 > > "Tobias Arp" <tobiasarp@xxxxxx> wrote: > > > > > This is a single core arm processor (Cirrus EP9315), could this race > > condition happen in this case? > > > > In theory, otoh it ought to be quite easy to test for. > > > > How fast are your links - would it be fair to characterise your > > environment as a fairly slow CPU handling a lot of fast serial links > > > > (just trying to understand what the likely places to look might be) > > > > -- > > 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 > -- > 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 -- 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
