PR 252541: Early kernel panic on RPi4B (Too many early devmatch mappings)

[Gordon Bergling]

On Tue, Jan 12, 2021 at 12:16:30AM -0800, Mark Millard via freebsd-arm wrote:
> On 2021-Jan-11, at 23:13, Klaus Küchemann <maciphone2 at googlemail.com> wrote:
> >> Am 12.01.2021 um 07:42 schrieb Mark Millard via freebsd-arm <freebsd-arm at freebsd.org>:
> >> 
> >> Also, my context was a amd64->aarch64 cross-build
> >> instead of being an aarch64 native build.…….src.conf like file, make.conf …...
> > 
> > I have compiled directly on the RPI with nonexistent src.conf/make.conf & standard kernconfs,
> > no problems .
> 
> Good to know what you used for such files and the build machine.
> 
> We do not have builds of the same source version yet. I will not
> get to it tonight, but I will hopefully later try to build the
> version that you identified and see what I get for different
> variations in how to build that source version to produce debug
> kernel builds. (I might include the two printf's that report
> the figures that the KASSERT is based on.)
> 
> ===
> Mark Millard
> marklmi at yahoo.com
> ( dsl-only.net went
> away in early 2018-Mar)

Hi Mark,

thanks for your work on that issue. I have some spare time today and will try some combinations
about NO INVARIANTS and so on. My src.conf is the following,

---------------------------
WITH_MALLOC_PRODUCTION=1
WITH_EXTRA_TCP_STACKS=1
WITH_BEARSSL=1
WITH_PIE=1
WITH_RETPOLINE=1
WITHOUT_CLEAN=1
---------------------------

I know that the change itselfs doesn't seems to be significant, but it was the
first that has triggered the panic. Maybe it is also the u-boot.bin, I haven't
updated them since the July.

I'll keep you posted.

--Gordon