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And indeed, reverting that commit (and its fixup) >> on top of current -git does indeed solve it. > > Can you send full dmesg from that kernel with the patch reverted and > also upload somewhere Here's dmesg on the kernel I booted yesterday, which is -git (and some other branches) and the two patches reverted: https://kernel.dk/r7625.dmesg.gz > /lib/firmware/amd-ucode/microcode_amd_fam19h.bin https://kernel.dk/microcode_amd_fam19h.bin This is from: axboe@r7625 ~> apt show amd64-microcode Package: amd64-microcode Version: 3.20240820.1 as the box is running debian testing/unstable. -- Jens Axboe