On Mon, Oct 22, 2018 at 10:13:14AM -0700, Mike Larkin wrote: > On Mon, Oct 22, 2018 at 08:01:13PM +0300, snikolov wrote: > > > This appears to be related to the LFENCE serializing MSR change that > > > went in > > > during the last round of side channel analysis fixes: > > > > > > ffffffff811c3037: b9 29 10 01 > > > c0 mov $0xc0011029,%ecx > > > ffffffff811c303c: 0f 32 rdmsr > > > > > > According to the commit, "This MSR is available on all AMD families > > > >= 10h...", > > > and since yours is family 15h, it should work. Maybe that assumption > > > was wrong? > > > > > > -ml > > > > > The Host's CPU is FX-8350 ,so you assumed right. Yet, I am new to > > openBSD so I have no clue what approach to be taken. > > > > Strahil > > Maybe a BIOS update is available? The date on yours is 2014. Maybe they > added that MSR after? >
As brynet@ pointed out in a later reply, BIOS update probably won't help. -ml
