Problems with Head on RaspberryPi

[Ralf Wenk]

On Thu, 27 Jun 2013 12:46:41 +0200, Michael Tuexen <tuexen at freebsd.org> wrote:

> On Jun 27, 2013, at 12:23 AM, Diane Bruce <db at db.net> wrote:
> > On Wed, Jun 26, 2013 at 08:37:57PM +0200, Michael Tuexen wrote:
> >> On Jun 26, 2013, at 7:39 PM, Oleksandr Tymoshenko <gonzo at bluezbox.com> wrote:
> >> 
> >>> 
> >>> On 2013-06-26, at 10:22 AM, Michael Tuexen <tuexen at freebsd.org> wrote:
> >>> 
> >>>> Dear all,
> >>>> 
> >>>> I have build FreeBSD using the script from
> >>>> https://github.com/daveish/freebsd-arm-tools
> >>>> for a couple of weeks and it worked fine. However,
> >>>> doing this within the last days, compilation and
> >>>> installation works, but the Raspberry Pi doesn't
> >>>> boot. After Starting kernel with NULL args
> >>>> or so, it doesn't show anything else. Normally
> >>>> the FreeBSD boot messages would appear. Does anyone
> >>>> else also see this? Any idea how to get some
> >>>> debug output out of the Raspberry Pi?
> >>> 
> >>> 
> >>> Try disabling INVARIANTS options in the kernel. It seems
> >>> new code in uma_dbg performs atomic ops on the 
> >>> allocated memory and if memory has been remapped as 
> >>> non-cached it causes exception. 
> >> OK. I'll try and report. It may take 24 hours...
> > 
> > I'm sorry to report it does not work.
> Building r252255 without INVARIANTS and INVARIANT_SUPPORT
> results in an image which boots completely on a R-Pi Model B with
> 512 MB RAM.

I just confirmed that without INVARIANTS and INVARIANT_SUPPORT a r252159
with the vmem.diff patches from Jeff Roberson applied boots also on the
same R-Pi Model B.

Ralf

> So is someone working on the uma_dbg stuff?
> 
> Best regards
> Michael
> > 
> >> 
> >> Best regards
> >> Michael
> >>> 
> > 
> > - Diane
> > -- 
> > - db at FreeBSD.org db at db.net http://www.db.net/~db