/dev/cuau* ports hang after a while

[Timo Rikkonen]

Hi,

I tried once more the suggestion of Ulrich Spörlein to build kernel without uart, and as before, the devicefile-numbering turned out odd (additional serialports are now /dev/cuad0-3, and motherboard port has devicefile /dev/cuad4. The sio's are accordingly sio0-3 / sio4).
The ports seemed to work just fine, including /dev/cuad0 and /dev/cuad4.

I made the same change on our two installations, and have had no problems since then. The data keeps on coming minute after minute (1 1/2 days now.)

All I really did was the change in /sys/i386/conf/GENERIC (comment out the 'uart'-line):
#device         uart            # Generic UART driver

Regards,
Timo


-----Original Message-----
From: owner-freebsd-stable at freebsd.org [mailto:owner-freebsd-stable at freebsd.org] On Behalf Of Timo Rikkonen
Sent: 2. helmikuuta 2009 10:20
To: Mike Tancsa; freebsd-stable at freebsd.org
Subject: RE: /dev/cuau* ports hang after a while

Hi,

Have now tried this with 7.1-RELEASE, unfortunately with same results as before, the ports still hang after some time.

-Timo



-----Original Message-----
From: Mike Tancsa [mailto:mike at sentex.net] 
Sent: 30. tammikuuta 2009 14:52
To: Timo Rikkonen; freebsd-stable at freebsd.org
Subject: RE: /dev/cuau* ports hang after a while

At 05:50 AM 1/30/2009, Timo Rikkonen wrote:
>Hi,
>
>The speed is 9600. Actually I already tried with 7.1-RELEASE, with 
>same results.
>I'll try the device.hints-changes, thanks.

Not sure if the code is in 7.0, so make sure you try it with 7.1-RELEASE

         ---Mike

>-Timo
>
>
>-----Original Message-----
>From: Mike Tancsa [mailto:mike at sentex.net]
>Sent: 29. tammikuuta 2009 22:34
>To: Timo Rikkonen; freebsd-stable at freebsd.org
>Subject: Re: /dev/cuau* ports hang after a while
>
>At 08:00 AM 1/26/2009, Timo Rikkonen wrote:
> >Hi,
> >
> >We are using "VScom PCI-200L" and "Moxa Technologies, C168H/PCI"
> >-cards for serial ports. After installing 7.0 the ports or the
> >connection to the port hang after a while. A "while" could be
> >half-a-day or 10 minutes.
> >There is no error message to be seen anywhere.
> >
> >Not all ports hang at the same time, it could be just one or two of
> >them. Earlier versions (6.2-RELEASE) work just fine.
> >The ports have different devicenames after 7.0, in 6.2 they were
> >/dev/cuad4-7, now they are /dev/cuau0-3 (uart?)
>
>
>Is the application fairly low speed (e.g. 9600bps or slower) ?  If
>so, try with 7.1R, not 7 and add
>
>hint.uart.0.flags="0x100"
>hint.uart.1.flags="0x100"
>
>to /boot/device.hints
>
>http://www.freebsd.org/cgi/query-pr.cgi?pr=121421
>
>has details
>
>          ---Mike

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