(In reply to OptionalRealName from comment #375) > Thread still ongoing with no response from AMD. > > Really shouldn't need to fiddle with custom bios options. > > What is big business / big iron or whatever it's called doing with Epyc and > linux servers? Are those totally fine?
I am running an Epyc-based server, and as posted in this thread here: https://forums.fedoraforum.org/showthread.php?317537-first-server-error-reboot-what-is-this-UUID (worth a full read) everything in there was solved by setting the correct Virtualization flags in BIOS, as specified by a Supermicro Tech as follows: ======== It looks like you want to enable the virtualization feature. Please go into BIOS, Advanced -> NB Configuration -> IOMMU (change to Enabled). Advanced -> PCIe/PCI/PnP Configuration -> SR-IOV Support (change to Enabled). ======== After this, the server worked without a hitch, and I have now upgraded it from Centos7, to Fedora 28, and it runs like a charm. Of course the server is not IDLE at all, and maybe that saves the server from the low power issue discussed in this thread. However, I have had it at least 7 days just sitting there not doing anything, and it never had any problem. -- 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
