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Date: Wed, 29 Apr 2015 20:56:50 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: "O'Connor, Daniel" <darius@dons.net.au>
CC: freebsd-arm <freebsd-arm@freebsd.org>
Subject: Re: pps_ioctl panic
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On 04/29/15 06:58, O'Connor, Daniel wrote:
>
>> On 28 Apr 2015, at 17:05, Hans Petter Selasky <hps@selasky.org> wrote:
>>
>> On 04/28/15 09:08, O'Connor, Daniel wrote:
>>> Hi all,
>>> I'm trying to get gpsd + PPS working on a Beaglebone Black but when I start gpsd I get the panic at the bottom of the email.
>>>
>>> I've run ntpd to the same device with PPS without problems.
>>>
>>> I haven't had a more detailed look yet though.
>>
>> Hi,
>>
>> Try to set "pps.mtx = &ttymx" before "pps_init()".
>
> I tried adding both..
>          sc->pps.mtx = &ttymx;
> and
>          sc->pps.mtx = &ttymtx;
>
> but neither mutex exist. I had a look in the TTY code (sys/kern/tty.c) and I couldn't see a likely candidate.
>

Hi,

Have a look in "sys/dev/usb/serial/usb_serial.c"

--HPS