Re: Failed attempt to boot a (non-debug) head -r339076 on an old PowerMac G5 "Quad Core" (built via devel/powerpc64-gcc): Waking up CPU 1

On 2018-Oct-8, at 1:27 PM, Justin Hibbits <chmeeedalf at gmail.com> wrote:

> On Mon, 8 Oct 2018 15:37:43 -0400
> Dennis Clarke <dclarke blastwave.org> wrote:
> 
>> On 10/08/2018 03:04 PM, Mark Millard via freebsd-ppc wrote:
>>> On 2018-Oct-8, at 10:25 AM, Michael Tuexen <tuexen at
>>> fh-muenster.de> wrote: 
>>>>> On 8. Oct 2018, at 19:00, Mark Millard <marklmi at yahoo.com>
>>>>> wrote:
>>>>> 
>>>>> [kern.smp.disabled=1 is confirmed to enable booting
>>>>> my head -r339076 build on teh "Quad Core", much like
>>>>> the 11.2 reports for "2MHz dual-core".]  
>>>> Does 11.2 run with smp enabled?  
>>> 
>>> [My wording was poor: "reports" in "11.2 reports with
>>> smp enabled" was referring to reports by you and others
>>> on the lists, not screen messages from attempting a
>>> 11.2 boot.]
>>> 
>>> No clue at this point for the G5 "Quad Core". I have no
>>> 11.x context established, and have not since head
>>> went from 11 to 12, as I remember. Would trying to boot
>>> an installer/live for 11.2 be sufficient to test
>>> this?  
>> 
>> 
>> I have tried over and over to install 11.2 on a G5 with dual PPC970
>> sockets wherein both are dual core. There is no quad core. Never was.
>> Anyways, the install simply doesn't work.
>> 
>> Dennis
> 
> It would be helpful to know the last known-good SVN revision, both for
> Head and 11.x, as well as the oldest failing one.  Since my G5 bit the
> dust, I can't check locally.

Admittedly, it is a mix of 11 and 12 but bounds might be:

Earliest known failing (so far):
11.2 Release is -r335563 (by which point 11 possibly picked up
something bad from head)

Latest known working (so far):
head -r333594 (too soon for 11 to have picked up something from
head)

From https://artifact.ci.freebsd.org/snapshot/stable-11/r*/powerpc/powerpc64/kernel.txz
(presuming holding a base.txz constant and just swapping kernels)
In that range for stable-11 I see matches for * of just:

334634
334654
334698
334956
335204
335406
335436
335472
335488
335492
335496
335508
335514
335556

So about 14 versions of 11's kernel seem to be available
in a pre-built form for powerpc64 under the assumption of
"common problem, moved from head to 11".

Of course 11.2's release -r335563 could be included. There
do not seem to be earlier powerpc64 snapshots anywhere near
-r333594's time frame.

That could possibly be used to narrow the range more for 11
without doing builds.

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)

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