intel / intel/Intel-Linux-Processor-Microcode-Data-Files

Server with Intel Xeon Gold 6230 fails to boot after upgrading to intel-microcode version 3.20220809.0ubuntu0.22.04.1

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Descrizione

Boot process get stuck at booting SMP configuration. Can be solved by downgrading intel-microcode to version 3.20210608.2ubuntu1 or passing the kernel parameter `dis_ucode_ldr`

LP bug: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/2002626

```
$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 46 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 80
On-line CPU(s) list: 0-79
Vendor ID: GenuineIntel
Model name: Intel(R) Xeon(R) Gold 6230 CPU @ 2.10GHz
CPU family: 6
Model: 85
Thread(s) per core: 2
Core(s) per socket: 20
Socket(s): 2
Stepping: 7
CPU max MHz: 3900,0000
CPU min MHz: 800,0000
BogoMIPS: 4200.00
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse3
6 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb r
dtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopolog
y nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx
smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2ap
ic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm a
bm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single ssbd mba
ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid e
pt_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm mpx rdt
_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd
avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc
cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts pku ospke avx512_
vnni md_clear flush_l1d arch_capabilities
Virtualization features:
Virtualization: VT-x
Caches (sum of all):
L1d: 1,3 MiB (40 instances)
L1i: 1,3 MiB (40 instances)
L2: 40 MiB (40 instances)
L3: 55 MiB (2 instances)
NUMA:
NUMA node(s): 2
NUMA node0 CPU(s): 0-19,40-59
NUMA node1 CPU(s): 20-39,60-79
Vulnerabilities:
Itlb multihit: KVM: Mitigation: VMX disabled
L1tf: Not affected
Mds: Not affected
Meltdown: Not affected
Mmio stale data: Vulnerable: Clear CPU buffers attempted, no microcode; SMT vulnerable
Retbleed: Mitigation; Enhanced IBRS
Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Spectre v2: Mitigation; Enhanced IBRS, IBPB conditional, RSB filling, PBRSB-eIBRS
SW sequence
Srbds: Not affected
Tsx async abort: Mitigation; TSX disabled
```

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