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

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Message-ID: <ab419bb9-1065-5200-5b22-32f36b0426a8@linux.intel.com>
Date:   Fri, 14 Jul 2023 14:45:21 -0700
From:   Arjan van de Ven <arjan@...ux.intel.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>
Cc:     Bruno Goncalves <bgoncalv@...hat.com>, x86@...nel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: 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)

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.