Mac Mini G4 hang on boot with git master

Mathieu Malaterre malat at
Sat Mar 16 03:18:47 AEDT 2019


On Fri, Mar 15, 2019 at 3:08 PM Mark Cave-Ayland
<mark.cave-ayland at> wrote:
> Hi all,
> I've just done a git pull and rebuilt master on my Mac Mini G4 in order to test
> Michael's merge of my KVM PR fix, and unfortunately my kernel now hangs on boot :(

Ouch :(

> My last working git checkout was somewhere around the 5.0-rc stage, so I suspect it's
> something that's been merged for 5.1.

OK. My last kernel is also somewhere around here on same hardware.

> The hang occurs just after the boot console is disabled which makes me wonder if
> something is going wrong during PCI bus enumeration. Does anyone have an idea as to
> what may be causing this? I can obviously bisect it down, but on slow hardware it can
> take some time...

When doing git bisect I compile from my amd64 machine using:

make O=g4 ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu- my_defconfig
make -j8 O=g4 ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu- bindeb-pkg
scp *image*.deb macminig4:

On Debian simply install:

# apt-get install crossbuild-essential-powerpc

> ATB,
> Mark.

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