Kernel 5.8

[xeno74]

Hi All,

I released the first alpha of kernel 5.8 today.

New:

• Linux 5.8 Graphics Updates Sent In With AMDGPU TMZ Support, P2P Buffers -- phoronix.com
• DRM updates
• Networking updates including dpaa updates
• KVM updates with PowerPC updates
• powerpc/mm: drop platform defined pmd_mknotpresent()
• powerpc: use __vmalloc_node in alloc_vm_stack
• powerpc: remove __ioremap_at and __iounmap_at
• powerpc: add an ioremap_phb helper (electra_cf)
• gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc
• Bluetooth: Enable Microsoft extensions (BT_MSFTEXT)
• Linux Git log
• Phoronix articles, reviews and news stories covering Linux 5.8

Download: linux-image-5.8-alpha1-X1000_X5000.tar.gz

Unfortunately the kernels don't boot on my AmigaOnes (X1000 and X5000/40).

They can't initialize the Radeon graphics cards.

Cheers,
Christian

[xeno74]

I was able to revert the DRM updates with the following command:

Code: Select all

git revert faa392181a0bd42c5478175cef601adeecdc91b6 -m 1

Unfortunately it doesn't solve the boot issue.

[xeno74]

I was able to revert the commit powerpc/mm: drop platform defined pmd_mknotpresent() with the following command:

Code: Select all

git revert 124cb3a62d54b271d7acfcf6596cb6a88766a344

It doesn't solve the issue either.

[acefnq]

Confirmed no boot with Kernel 5.8 alpha.

ace

[xeno74]

Confirmed no boot with Kernel 5.8 alpha.

ace

Thanks for testing.

I was able to revert the commit powerpc: use __vmalloc_node in alloc_vm_stack with the following command:

Code: Select all

git revert cb0849a990b2928760bc38561e8d33b554196e25

OK, this revert doesn't solve the issue.

[xeno74]

I was able to revert the commit powerpc: remove __ioremap_at and __iounmap_at with the following command:

Code: Select all

git revert 91f03f297c46bd2ced1e73fc9a668292145b1135

OK, this commit isn't the problem.

[xeno74]

I wasn't able to revert the commit powerpc: add an ioremap_phb helper (electra_cf) with the following command:

Code: Select all

git revert b274014c6d191ec92c4921d5e84c90f6ed2f38a0

[xeno74]

I was able to revert the commit
gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc with the following command:

Code: Select all

git revert d28ff991b2e23049c30584c1d97681087193879f

This doesn't solve the issue.

[xeno74]

BTW, it doesn't boot in a virtual QEMU PowerPC machine either.

[xeno74]

I reported the boot issue to the Linuxppc-mailing list today.

Link: Boot issue with the latest Git kernel