On Fri, Feb 14, 2025 at 11:12:06AM +0100, Holger Hoffstätte wrote: > On 2025-02-14 09:42, Greg Kroah-Hartman wrote: > > 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? > > (cc: Juri Lelli) > > Whoop! Whoop! The sound of da police! > > 2ce2a62881abcd379b714bf41aa671ad7657bdd2 is the first bad commit > commit 2ce2a62881abcd379b714bf41aa671ad7657bdd2 (HEAD) > Author: Juri Lelli <juri.lelli@xxxxxxxxxx> > Date: Fri Nov 15 11:48:29 2024 +0000 > > sched/deadline: Check bandwidth overflow earlier for hotplug > [ Upstream commit 53916d5fd3c0b658de3463439dd2b7ce765072cb ] > > With this reverted it reliably suspends again. Thanks! I'll go revert that one now and push out new -rc releases soon. greg k-h