On Tue, Jul 5, 2022 at 6:50 AM <torvic9@xxxxxxxxxxx> wrote: > > Linux 5.19-rc5 does not boot on my Kaby Lake Thinkpad. > rc3 and rc4 were still fine, so I guess something between rc4 and rc5 > introduced a regression. Sounds that way. > Unfortunately, there are no errors or warning messages. > It gets stuck quite early on boot, about the time USB is initialized, > so less than 1 second into post-bootloader boot. > It then just sits there doing nothing - SysRq still works though. There aren't all that many changes in rc5, and your hardware looks *very* standard (all intel chipset, and a Samsung SM961 SSD). And with the lack of details, we'll either need a bisect: > I don't have time for a bisect, but I thought I'll let you know about > this issue, and maybe someone already has an idea. or we'll need more reports.. > Some system information below. Root filesystem is f2fs. Ok, f2fs is certainly unusual, but there are no f2fs changes in rc5. There's some PM changes for i915 ("drm/i915/dgfx: Disable d3cold at gfx root port") and a couple of thinkpad-acpi platform driver updates, so I'm adding a few random people to the cc in case somebody goes "ahh..." But otherwise I think we'll just need more reports or info to even start guessing. Linus