[FSL P50x0] Xorg always restarts again and again after the the PowerPC updates 5.13-1

[Christian Zigotzky]

Am 04.05.21 um 11:11 schrieb Christophe Leroy:
>
>
> Le 04/05/2021 à 11:09, Christian Zigotzky a écrit :
>> Am 04.05.21 um 10:58 schrieb Christophe Leroy:
>>>
>>>
>>> Le 04/05/2021 à 10:29, Christian Zigotzky a écrit :
>>>> On 04 May 2021 at 09:47am, Christophe Leroy wrote:
>>>>> Hi
>>>>>
>>>>> Le 04/05/2021 à 09:21, Christian Zigotzky a écrit :
>>>>>> 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
>>>>>
>>>>>
>>>>>> $ 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