(In reply to Borislav Petkov from comment #569) > (In reply to Tolga Cakir from comment #568) > > @Borislav has the fix for erratum 1033 "A Lock Operation May Cause the > > System to Hang" been applied so far? The suggested workaround was "Program > > MSRC001_1020[4] to 1b", but I couldn't find anything about it in master > > branch. According to the document, 1033 only affects B1. > > Such a "fix" does not exist. Possibly because it is unlikely this is causing > it and BIOS might be applying the fix already. People with B1s (model 1, > stepping 1) could test though by doing as root: > > # modprobe msr > # rdmsr -a 0xc0011020 > > and looking at bit 4 in the result.
206800000000100 CPU: AMD Ryzen 5 2400G Motherboard: Asus ROG STRIX B350-F Gaming Firmware version: 4207 Linux: 4.18.16-300.fc29 (Fedora 29 live system) -- 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
