Am 2. Juni 2022 13:42:54 UTC schrieb Markus Kolb <deb...@tower-net.de>: >Because the kernel.org 5.10.113 with my stripped down config is running >successful, >I've rebuilt this kernel.org 5.10.113 with the Debian config >/boot/config-5.10.0-14-amd64 via make oldconfig. >There are some differences between kernel.org and Debian in the config, I've >put the config diff bug-1012210-kernel-config-changes.patch in the attached >tar.xz. >This kernel also boots successful. > >I think the problem is introduced by a Debian patch which handles the config > CONFIG_INTEL_IOMMU_DEFAULT_ON_INTGPU_OFF=y >because this is not available in kernel.org 5.10.113.
[...] > https://salsa.debian.org/kernel-team/linux/-/blob/bullseye-security/debian/patches/features/x86/intel-iommu-add-kconfig-option-to-exclude-igpu-by-default.patch > https://salsa.debian.org/kernel-team/linux/-/blob/bullseye-security/debian/patches/features/x86/intel-iommu-add-option-to-exclude-integrated-gpu-only.patch [...] I've patched the kernel.org 5.10.113 just with these 2 Debian patches and at least I can confirm, that these changes are the cause. Although I don't understand at the moment where the difference of intel_iommu=on with patch and the defaults without patch could be. Will have a closer look tomorrow.
