Hi, this comment (536 and 535) for me sounds more or less the instability is not from idle. because: "... Applications start segfaulting,..." "running wine/... (with games)" for segfaulting you have to change the processor. search the internet for the "kill ryzon script" run it and look what happens. if it segfaults, normally amd will change your processor to one who will not segfault.
so for me this was the first thing i have done to get all my ryzon systems rockstable. all processors where exchanged by amdsupport (some twice) (my (small) hardware computer store has done this for me) after you get a new processor check again!!!! and maybe (it happend for me after updates of bios to get the "typical idel control settings") , check if you under hard load (i used the kill ryzon script again) get: kernel: pcieport 0000:00:03.1: AER: Multiple Corrected error received: id=0000 kernel: pcieport 0000:00:03.1: PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=0019(Transmitter ID) (ore something similar) for this use the "pcie_aspm=off" option for grub/kernel commandline ... what i will say, before you are not sure that the "kill ryzon script" will work fine, do not search for other things, these processors have a bugs. FIRST change with amd the processor, do not thrust the production date of the processor, i have had processors who according to all infos i found inside the internet should be ok, but the where NOT ok. as i understood this randomsoft lookups buglist here is for softlookups when idle, or wakeing up from idle. simoN -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs