(In reply to alfie from comment #551) > kernel 4.19.27 with rcu_nocbs=0-11 idle=halt nopti, yesterday at around > 11:30 p.m. I had an "usual" total lookup of the system during light usage (I > just had an ssh session opened). With idle=halt, I get no "ACPM WAIT C-state > bug" line in dmesg. > > The problem with this freeze problem is that is difficult to replicate. The > segfault bug was very easy: 3-4 mesa compilations triggered it for sure. > This bug, instead, can hide for days and days and it reappears all of a > sudden.
The segfault compilation issue is well known. I had the same with my first 1700. AMD will RMA. My replacement chip has been fine. As for the other idle lockup issues, a combination of custom rcu kernel and python script to disable C6 has had my machine up for months. -- 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
