Package: amd64-microcode Version: 3.20240116.2+nmu1 Severity: normal -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
I was testing with `rngtest` on arm64 devices and wanted to know the results on my amd64 AMD (Ryzen) CPU/APU. System 1: CPU: AMD Ryzen 7 1800X Eight-Core Processor (family: 0x17, model: 0x1, stepping: 0x1) CPU family: 23 (in decimal) microcode revision: 0x08001138 (according to dmesg) System 2: CPU/APU: AMD Ryzen 5 5500GT with Radeon Graphics (family: 0x19, model: 0x50, stepping: 0x0) CPU family: 25 (in decimal) microcode revision: 0x0a50000f (according to dmesg) While `rngtest` results looked excellent on System 1, it revealed that the HWRNG on System 2 is broken. I'm currently triaging it (with Asus; MB manufacturer) and they asked me to test with the latest microcode. So hereby a '+1' on bug #1076128. I am running the latest amd64-microcode package on both and looked further into all the package files and actually got confused. I got the *impression* that some heuristic was used to determine whether the microcode update should be applied. That impression was based on what I saw in ``/etc/default/amd64-microcode`` and ``/etc/modprobe.d/amd64-microcode-blacklist.conf``. I also went looking for the microcode revision number reported by ``dmesg`` in the upstream repo, but the relevant data seems to be part of ``/usr/share/doc/amd64-microcode/README.gz``. But no where did I find those microcode revision codes. I'd like to know whether I'm actually running the latest microcode, but I haven't figured out a way how? So hereby a request to clarify/document how I (and others) can verify whether they're (actually) *running* the latest (amd64-)microcode. Cheers, Diederik - -- System Information: Debian Release: trixie/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (101, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 6.9.10-amd64 (SMP w/16 CPU threads; PREEMPT) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled amd64-microcode depends on no packages. Versions of packages amd64-microcode recommends: ii initramfs-tools 0.142 amd64-microcode suggests no packages. - -- no debconf information -----BEGIN PGP SIGNATURE----- iHUEARYIAB0WIQT1sUPBYsyGmi4usy/XblvOeH7bbgUCZp4r3QAKCRDXblvOeH7b bq07AP9eCVDDdE8Wvz/NUeibJ+PJCFObGyF93qO/i/I4ZizjNwEAgpSK/CBUAoZX B+IEmONl1FxVeKNCs2aaWOKMzim5rwQ= =2pIO -----END PGP SIGNATURE-----
