https://bugzilla.suse.com/show_bug.cgi?id=1225217 https://bugzilla.suse.com/show_bug.cgi?id=1225217#c3 --- Comment #3 from Charaf Rais <charafweb@gmail.com> --- Thank you for you reply. To give you unbiased information, I made a fresh install, update the system, installed latest ucode via "Yast Software Management" without installing gpu related drivers. I booted using "dis_ucode_ldr", and I downloaded bellow kernels from your repos, then tested them one by one: please check hwinfo in attached file. -------------------------------------------------------- kernel-default-6.1.12-1.1.g373f017.x86_64.rpm kernel-default-devel-6.1.12-1.1.g373f017.x86_64.rpm --> Boots normally! rais@192:~> sudo dmesg | grep -i microcode [sudo] password for root: [ 0.000000] [ T0] microcode: microcode updated early to revision 0xf0, date = 2021-11-12 [ 0.076111] [ T0] SRBDS: Mitigation: Microcode [ 0.505522] [ T0] microcode: sig=0x506e3, pf=0x20, revision=0xf0 [ 0.505739] [ T1] microcode: Microcode Update Driver: v2.2. -------------------------------------------------------- kernel-default-6.2.12-1.1.geb3255d.x86_64.rpm kernel-default-devel-6.2.12-1.1.geb3255d.x86_64.rpm --> Boots normally! rais@192:~> sudo dmesg | grep -i microcode [sudo] password for root: [ 0.000000] [ T0] microcode: microcode updated early to revision 0xf0, date = 2021-11-12 [ 0.078794] [ T0] SRBDS: Mitigation: Microcode [ 0.512834] [ T1] microcode: Microcode Update Driver: v2.2. -------------------------------------------------------- kernel-default-6.3.9-1.1.g0df701d.x86_64.rpm kernel-default-devel-6.3.9-1.1.g0df701d.x86_64.rpm HANGS on first boot Hangs on second boot 3d boot, I pushed "e" then F10 (without any editing) and the boot successed! 4 boot, passed without "e" + F10 5 boot Hangs 6 boot hangs 7 boot hangs even with "e" F10 trick 8 boot passed using dis_ucode_ldr 9,10 ... tested using dis_ucode_ldr , boot succeddfully evry time rais@192:~> sudo dmesg | grep -i microcode [sudo] password for root: [ 0.000000] [ T0] microcode: updated early: 0xc6 -> 0xf0, date = 2021-11-12 [ 0.078876] [ T0] SRBDS: Mitigation: Microcode [ 0.976939] [ T1] microcode: Microcode Update Driver: v2.2. -------------------------------------------------------- kernel-default-6.4.12-1.1.gf5aa89b.x86_64.rpm kernel-default-devel-6.4.12-1.1.gf5aa89b.x86_64.rpm --> Working ! rais@192:~> sudo dmesg | grep -i microcode [sudo] password for root: [ 0.000000] [ T0] microcode: updated early: 0xc6 -> 0xf0, date = 2021-11-12 [ 0.071282] [ T0] SRBDS: Mitigation: Microcode [ 0.514596] [ T1] microcode: Microcode Update Driver: v2.2. --------------------------------------------------------- kernel-default-6.5.9-1.1.g1823166.x86_64.rpm kernel-default-devel-6.5.9-1.1.g1823166.x86_64.rpm --> NOT BOOTING. -------------------------------------------------------- kernel-default-6.6.11-1.1.g05ae4ad.x86_64.rpm kernel-default-devel-6.6.11-1.1.g05ae4ad.x86_64.rpm --> Not booting -------------------------------------------------------- kernel-default-6.7.9-1.1.gc6dad0c.x86_64.rpm kernel-default-devel-6.7.9-1.1.gc6dad0c.x86_64.rpm --> Not booting --------------------------------------------------------- Kernel v 6.8 & 6.9 has been tested and they are not booting without dis_ucode_ldr. -- You are receiving this mail because: You are on the CC list for the bug.