From: Arjan van de Ven <arjan at linux.intel.com>
To: powertop@lists.01.org
Subject: Re: [Powertop] [PATCH] Do not exit on MSR read errors
Date: Wed, 16 Sep 2015 12:31:08 -0700 [thread overview]
Message-ID: <55F9C37C.9060403@linux.intel.com> (raw)
In-Reply-To: 55F9C0C0.1020606@linux.intel.com
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On 9/16/2015 12:19 PM, Alexandra Yates wrote:
> Hi Jaroslav,
>
> On 05/11/2015 09:54 AM, Arjan van de Ven wrote:
>> but it's really not the right thing.
>> the reason is that the statistics code still uses the "native intel msr" model,
>> so it gets all zeroes... it should use "just trust the kernel" model in
> Based on Arjan's feedback do you have a change for this patch? Otherwise I would have to reject it.
we do need to solve this problem... it's real.
just we need to really solve it, not just a workaround.
is not insane hard (we'd need to do a test read msr, if that fails because of broken virtualization, fall back to the degraded mode automatically)
next reply other threads:[~2015-09-16 19:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-16 19:31 Arjan van de Ven [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-09-16 19:19 [Powertop] [PATCH] Do not exit on MSR read errors Alexandra Yates
2015-05-11 16:54 Arjan van de Ven
2015-05-11 16:49 Jaroslav Skarvada
2015-05-11 14:32
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