RE: Possible Serial Kernel Bug

From: Raynard Brown
Date: Thu Feb 21 2008 - 11:22:47 EST


Oliver,

I tried disabling flow control on the server with stty -F /dev/ttyS2
-crtscts, then echo sometext > /dev/ttyS2, but I get the same results
the echo command freezes will trying to send data to the client.

Raynard

-----Original Message-----
From: Oliver Martin [mailto:leromarinvit@xxxxxxxxx] On Behalf Of Oliver
Martin
Sent: Thursday, February 21, 2008 10:01 AM
To: Raynard Brown
Cc: linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: Possible Serial Kernel Bug

Raynard Brown schrieb:
> 0: uart:16550A port:000003F8 irq:4 tx:72 rx:6
> 1: uart:16550A port:000002F8 irq:3 tx:59 rx:6
> 2: uart:16550A port:000003E8 irq:11 tx:0 rx:0 RTS|DTR
> 3: uart:16550A port:000002E8 irq:10 tx:0 rx:0 RTS|DTR
> 4: uart:16550A port:000004F8 irq:0 tx:59 rx:6
>
^^^^^^^
Could it be that hardware flow control is enabled on the server, while
it is disabled on the other side? What happens if you disable it with
stty -F /dev/ttySX -rtscts?

Oliver

This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed. If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify the sender and delete the original.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/