Ubuntu
linux package

  1. Bug #1690085
  2. Comment #657

Comment 657 for bug 1690085

Revision history for this message
In , zao (zao-linux-kernel-bugs) wrote :

(In reply to Borislav Petkov from comment #569)
> (In reply to Tolga Cakir from comment #568)
> Such a "fix" does not exist. Possibly because it is unlikely this is causing
> it and BIOS might be applying the fix already. People with B1s (model 1,
> stepping 1) could test though by doing as root:
>
> # modprobe msr
> # rdmsr -a 0xc0011020
>
> and looking at bit 4 in the result.

I've got an ASUS PRIME X370-PRO with the B1 CPU mentioned on firmware 4024
(from 2018/09/28).

rdmsr yields 6800000000010, which has bit 4 set.