Progress on Raspberry Pi

[George Mitchell]

On 09/21/13 14:25, Tim Kientzle wrote:
>
> On Sep 20, 2013, at 5:49 PM, George Mitchell <george+freebsd at m5p.com> wrote:
>
>> My AdaFruit serial cable arrived, so now I can gather useful information
>> when my RPi crashes…
>
> Excellent!
>
>> I built my image with crochet on an amd64 running r255361, and the image
>> itself is based on that version.  (However, in sys/arm/arm I updated
>> pmap-v6.c to 255612 and stdatomic.c to 255613.  I see they have been
>> updated again within the last day; perhaps I should try again.)
>>
>> /etc/src.conf:
>> MALLOC_PRODUCTION=yes
>>
>> /etc/make.conf:
>> WITH_PKGNG=yes
>> MALLOC_PRODUCTION=yes
>> # added by use.perl 2013-08-20 10:11:49
>> PERL_VERSION=5.14.4
>
> By default, Crochet ignores the host /etc/src.conf
> and /etc/make.conf on the assumption that what
> is right for the host system is not necessarily correct
> for the target system.
>
> If you specifically want to use them, you can add
>
> SRCCONF=/etc/src.conf
> __MAKE_CONF=/etc/make.conf
>
> to your configuration file.  Of course, you can also put
> src.conf and make.conf files elsewhere for Crochet to use.

Thanks!  I put that in my crochet config file just a couple of weeks
ago when you first mentioned it.

>
>> I commented out the five syscons-related lines in sys/arm/conf/RPI-B so
>> I could use the serial port.  My SDHC card is apparently on the hairy
>> edge of working, so I definitely needed /boot/loader.conf to contain:
>> hw.bcm2835.sdhci.hs=0.  Before I added that, I ended up with the dreaded
>> error 19 and a manual mountroot prompt, at which point mountroot would
>> accept a character from the serial input about 1/4 of the time.  Other
>> serial input works without a problem.
>
> <sigh>  Keyboard input to mount root seems to
> be broken on a lot of FreeBSD systems.
>
>> Before I remembered to comment out the /dev/ttyvN lines in /etc/tty,…
>
> Should Crochet's RaspberryPi configuration disable those?

Not sure.  Before I got the serial cable hooked up, it was nice to be
able to use the USB keyboard to log into the system.

>
>> 2. Now that I can do something when I get the prefetch abort or panic,
>> what should I do at the "db>" prompt to help debug it?  It's happening
>> about five or six times a day.
>
> Type "bt" to get a backtrace.  That's the single most informative
> thing.  Note:  The first few stack frames displayed are from inside
> the debugger itself and aren't particularly interesting.  The important
> frames are a little later where we see *why* we ended up in the
> debugger.
>
> Tim
>

Okay, will do.  I'll try to collect a few and maybe post them in the
few days.

Any predictions of what will happen if I try to compile and install
x11/xorg on the RPi?                                     -- George