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.
cheers
Holger
