> I have discovered a 100% reliable soft lockup on boot on my laptop: > Purism Librem 14, Intel Core i7-10710U, 48Gb RAM, Samsung Evo Plus 970 > SSD, CoreBoot BIOS, grub bootloader, Arch Linux. > > The last working release is kernel 6.9.10, every release from 6.10 > onwards reliably exhibit the issue, which, based on journalctl logs, > seems to be triggered somewhere in systemd-udev: > https://gitlab.archlinux.org/-/project/42594/uploads/04583baf22189a0a8bb2f8773096e013/lockup.log > > Bisect points to commit 5186ba33234c9a90833f7c93ce7de80e25fac6f5 Does that Intel Core i7-10710U even execute the RDT code? Most client parts don't support RDT. You can check if yours does by looking for "rdt_a" in /proc/cpuinfo. -Tony