On Wed, Sep 5, 2018 at 2:04 PM, Sedat Dilek <sedat.di...@gmail.com> wrote: > Hi Joerg, > > "intel_ioomu=on" was working fine here on my ThinkPad T470 with > debian/testing AMD64 with Linux v4.17.y and v4.18.y. > > With testing Linux v4.19-rc1 and v4.19-rc2 my machine is not booting - > black screen. > These kernels are built with LLVM/Clang v7.0.0rc2 (v4.18.y too). > > Furthermore, I switched from GRUB to systemd-boot v239. > > [ /boot/efi/loader/entries/debian.conf ] > > title Debian GNU/Linux buster/sid [ debian kernel ] > linux /vmlinuz-4.17.0-3-amd64 > initrd /initrd.img-4.17.0-3-amd64 > options root=UUID=4c2aa544-6e86-44d2-9329-572623867b3d ro intel_iommu=on > > [ /boot/efi/loader/entries/debian-llvmlinux.conf ] > > title Debian GNU/Linux buster/sid [ llvmlinux kernel (EXPERIMENTAL) ] > linux /vmlinuz-4.19.0-rc2-3-iniza-llvmlinux > initrd /initrd.img-4.19.0-rc2-3-iniza-llvmlinux > options root=UUID=4c2aa544-6e86-44d2-9329-572623867b3d ro > > Any hints or hints to debug this? > Any other kernel boot cheats [1] I can try? > > My kernel-config and dmesg output is attached. > > Thanks in advance. > > Regards, > - Sedat - > > > Documentation/intel_txt.txt > Documentation/admin-guide/kernel-parameters.txt > Documentation/Intel-IOMMU.txt > > [1] > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/admin-guide/kernel-parameters.txt#n1645 > [2] > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/Intel-IOMMU.txt > [3] > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/intel_txt.txt
[ TO JR @ SuSE ] I still have this issue with Linux v4.19-rc4+. - Sedat - _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
