Le 04/05/2021 à 11:46, Christian Zigotzky a écrit :

Am 04.05.21 um 11:11 schrieb Christophe Leroy:

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Le 04/05/2021 à 11:09, Christian Zigotzky a écrit :

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Am 04.05.21 um 10:58 schrieb Christophe Leroy:

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Le 04/05/2021 à 10:29, Christian Zigotzky a écrit :

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On 04 May 2021 at 09:47am, Christophe Leroy wrote:

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Hi

Le 04/05/2021 à 09:21, Christian Zigotzky a écrit :

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Hi Christophe,

Thanks for your answer but I think I don't know how it works with the cherry-pick.

$ git bisect start

As you suspect the problem to be specific to powerpc, I can do

git bisect start -- arch/powerpc

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$ git bisect good 68a32ba14177d4a21c4a9a941cf1d7aea86d436f
$ git bisect bad c70a4be130de333ea079c59da41cc959712bb01c

You said that powerpc-5.13-1 is bad so you can narrow the search I think:

git bisect bad powerpc-5.13-1
git bisect good 887f3ceb51cd3~

I tried it but without any success.

git bisect bad powerpc-5.13-1

Output:
fatal: Needed a single revision
Bad rev input: powerpc-5.13-1

I don't understand, on my side it works. Maybe a difference between your version of git and mine.

In that case, just use the SHA corresponding to the merge:

git bisect bad c70a4be130de333ea079c59da41cc959712bb01c

Christophe

Do you use a BookE machine?

No I don't unfortunately, and I have tried booting in QEMU a kernel built with your config, but it 
freezes before any output.

You can use my kernels and distributions.

Download Fedora 28 PPC64: http://www.xenosoft.de/fedora28-2.img.tar.gz
Download size: 4.1 GB
MD5 checksum: 1784ca69651531522161498720a89414

Default username and password:
Username: amigaone
Password: amigaone
Root Password: amigaone

You can start the MATE desktop with "startx".

Download MintPPC (Debian Sid) PPC32: http://www.xenosoft.de/MintPPC32-X5000.tar.gz
MD5 checksum: b31c1c1ca1fcf5d4cdf110c4bce11654

The password for both 'root' and 'mintppc' is 'mintppc'.

Download kernel 5.12.0 for the AmigaOne X5000 and for the virtual e5500 QEMU machine without the bad 
commit: http://www.xenosoft.de/linux-image-5.12-X1000_X5000.tar.gz
Download git kernel for the AmigaOne X5000 and for the virtual e5500 QEMU machine with the bad 
commit: http://www.xenosoft.de/linux-image-5.13-alpha3-X1000_X5000.tar.gz

QEMU command with KVM on the X5000: qemu-system-ppc64 -M ppce500 -cpu e5500 -enable-kvm -m 1024 
-kernel uImage -drive format=raw,file=MintPPC32-X5000.img,index=0,if=virtio -netdev user,id=mynet0 
-device e1000,netdev=mynet0 -append "rw root=/dev/vda" -device virtio-vga -device virtio-mouse-pci 
-device virtio-keyboard-pci -device pci-ohci,id=newusb -device usb-audio,bus=newusb.0 -smp 4

QEMU command for Fedora 28 without KVM and with VNC connect: qemu-system-ppc64 -M ppce500 -cpu e5500 
-m 1024 -kernel uImage -drive format=raw,file=fedora28-2.img,index=0,if=virtio -netdev 
user,id=mynet0 -device virtio-net-pci,netdev=mynet0 -append "rw root=/dev/vda" -device virtio-vga 
-usb -device usb-ehci,id=ehci -device usb-tablet -device virtio-keyboard-pci -smp 4 -vnc :1

QEMU command for MintPPC without KVM and with VNC connect: qemu-system-ppc64 -M ppce500 -cpu e5500 
-m 1024 -kernel uImage -drive format=raw,file=MintPPC32-X5000.img,index=0,if=virtio -netdev 
user,id=mynet0 -device virtio-net-pci,netdev=mynet0 -append "rw root=/dev/vda" -device virtio-vga 
-usb -device usb-ehci,id=ehci -device usb-tablet -device virtio-keyboard-pci -smp 4 -vnc :1

It doesn't work, it remains stuck.

But I'm probably not in the best situation: I'm on a PC running Windows 7, with Virtualbox running 
Fedora core 33 and I try to run powerpc QEMU on the fedora core 33. Maybe too many layers to succeed.