kernel since 5.6 do not boot anymore on Apple PowerBook

[Christophe Leroy]

Le 07/07/2020 à 16:03, Giuseppe Sacco a écrit :
> Hello Cristophe,
> 
> Il giorno mar, 07/07/2020 alle 15.35 +0200, Christophe Leroy ha
> scritto:
>> Hi,
>> Le 07/07/2020 à 14:58, Giuseppe Sacco a écrit :
> [...]
>>> So, I am looking for help. How may I better investigate the
>>> problem?
>>> How may I crossbuild the kernel on a faster machine (amd64) in
>>> order to
>>> try git-bisect without waiting ages?
>>
>> To crossbuild, use cross tools at
>> https://mirrors.edge.kernel.org/pub/tools/crosstool/
> 
> thank you, I'll have a look at it.
> 
>> Can you tell which defconfig you use or provide your .config
> 
> You may get the standard one from debian or a reduced one that I made
> on purpose. The latter is here:
> https://eppesuigoccas.homedns.org/~giuseppe/config-5.4.50.gz (boot)
> https://eppesuigoccas.homedns.org/~giuseppe/config-5.6.19.gz (no boot)
> 

Thanks

Can you provide the complete output when it works, so that I can see 
what is after the place it stops when it fails.

And can you try without CONFIG_VMAP_STACK on 5.6.19

Christophe