I can confirm there are no issues when booting with the package from the ubuntu-security-proposed PPA.
amd64-microcode: Installed: 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1 Candidate: 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1 Version table: *** 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1 500 500 http://ppa.launchpad.net/ubuntu-security-proposed/ppa/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status
/proc/cpuinfo: vendor_id : AuthenticAMD cpu family : 23 model : 49 model name : AMD EPYC 7402P 24-Core Processor stepping : 0 microcode : 0x830101c
I can confirm there are no issues when booting with the package from the ubuntu- security- proposed PPA.
amd64-microcode: 1+really3. 20181128. 1~ubuntu0. 18.04.1 1+really3. 20181128. 1~ubuntu0. 18.04.1 1+really3. 20181128. 1~ubuntu0. 18.04.1 500 ppa.launchpad. net/ubuntu- security- proposed/ ppa/ubuntu bionic/main amd64 Packages dpkg/status
Installed: 3.20191021.
Candidate: 3.20191021.
Version table:
*** 3.20191021.
500 http://
100 /var/lib/
/proc/cpuinfo:
vendor_id : AuthenticAMD
cpu family : 23
model : 49
model name : AMD EPYC 7402P 24-Core Processor
stepping : 0
microcode : 0x830101c