On Fri, Feb 14, 2025 at 09:32:06AM +0100, Holger Hoffstätte wrote: > On 2025-02-13 15:22, Greg Kroah-Hartman wrote: > > This is the start of the stable review cycle for the 6.13.3 release. > > There are 443 patches in this series, all will be posted as a response > > to this one. If anyone has any issues with these being applied, please > > let me know. > > Builds & runs fine BUT fails to suspend to RAM 99.99% of the time (basically > one success but never again). Display powers down but fans stay on. > > Tested on multiple systems, all x64. I first suspected amdgpu because why not :) > but it also fails on a system without amdgpu, so that's not it. > > Reverting to 6.13.2 immediately fixes everything. > > Common symptom on all machines seems to be > > [ +0.000134] Disabling non-boot CPUs ... > [ +0.000072] Error taking CPU15 down: -16 > [ +0.000002] Non-boot CPUs are not disabled > > "Error taking down CPUX" is always the highest number of CPU, i.e. > 15 on my 16-core Zen2 laptop, 3 on my 4-core Sandybridge etc. > > I started to revert suspects but no luck so far: > - acpi parsing order > - amdgpu backlight quirks > - timers/hrtimers > > Suggestions for other suspects are welcome. Can you run 'git bisect' to try to find the offending change? thanks, greg k-h
