Hello, On Sat, Oct 29, 2022 at 06:52:41AM -0700, Guenter Roeck wrote: > - Debian might carry some non-upstream driver patches causing the problem > (or fixing it in the older kernel, and the patch was not applied to the > new kernel). I think I diffed the two kernel sources properly. > - Debian installs its own version of the CPU firmware, and the version > installed with the newer kernel introduces the problem. Possible, at least the CPU firmwares are the same version according to /proc/cpuinfo. > For the last one, the only means I could think of would be to bisect between > the good and the bad version. Yes, I will try that as soon as I have hardware that I can remove from production. Thank you.
