Re: [6.5.0-rc1] unchecked MSR access error: RDMSR from 0xe2 at rIP: 0xffffffff87090227 (native_read_msr+0x7/0x40) (intel_idle_init_cstates_icpu)

[Peter Zijlstra]

On Fri, Jul 14, 2023 at 02:45:21PM -0700, Arjan van de Ven wrote:
> On 7/14/2023 2:10 PM, Peter Zijlstra wrote:
> > On Tue, Jul 11, 2023 at 08:37:51PM +0200, Wysocki, Rafael J wrote:
> > 
> > > > Rafael, can we please just pull these patches and try again later?
> > > 
> > > I think you mean "revert"?
> > 
> > Yes, revert. The whole premise with the unparsable changelog that
> > babbles about TLB invalidates without any performance data-so-ever
> > should've been a red-flag.
> > 
> > That whole TLB angle is nonsense. We have paravirt TLB invalidation for
> > this.
> 
> for kvm and hyperv. not for vmware etc.

And for everybody that does play ball, this will be a net negative by
causing extra TLB invalidations :/