[Bug 253272] Page fault in _mca_init during boot

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Sun Feb 7 21:31:42 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253272

--- Comment #2 from Alan Somers <asomers at FreeBSD.org> ---
I updated the BIOS from version 5.12, aka 2/24/2018 Rev 2.0b, to 5.14, aka
10/30/2020 Rev 3.4.  That fixed the problem.  Now all CPUs show the MCG_CMCI_P
bit disabled.

$ for i in `seq 0 31`; do sudo cpucontrol -m 0x179 /dev/cpuctl${i}; done | uniq
-c
  32 MSR 0x179: 0x00000000 0x0f000814

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