Erroneous package power limit notification since kernel 2.6.39

[Olaf Freyer]

Am 28.06.2011 22:59, schrieb Jesse Barnes:
> On Tue, 28 Jun 2011 22:46:41 +0200
> Olaf Freyer <aaron667 at gmx.net> wrote:
>
>> Am 26.06.2011 18:27, schrieb Florian Mickler:
>>>> Both of my bisection attempts ended near the same set of drm/i915 changes that
>>>> resulted in non-bootable kernels. Considering I'm using a Intel(R) Core(TM)
>>>> i7-2720QM with some Intel Sandybridge Chipset graphics those might sound
>>>> somewhat plausible to someone knowing the internals, but don't help me at all.
>>> There are 2 untested commits left. But they don't seem to be relevant.
>>> Guessing on those gives me:
>>>
>>> The first bad commit could be any of:
>>> b0b544cd37c060e261afb2cf486296983fcb56da
>>> f67a559daaa0e2ba616bfe9438f202bc57bc8c72
>>> 18b2190ca5bd3f19717421b1591c79c9b0372428
>>> 6f06ce184c765fd8d50669a8d12fdd566c920859
>>> 0fc932b8ec36116bb759105ce910b0475e63112a
>>> 311bd68e024f9006db66cbadc3bd9f62fd663f4b
>>> 040484af3a4efa65786b6e107fbe74747679e17c
>>> ccab5c82759e2ace74b2e84f82d1e0eedd932571
>>> aa9b500ddf1a6318e7cf8b1754696edddae86db9
>>> d9b6cb568bc6eca8db88357bf8bbb92d42a91b1e
>>> 92f2584a083986c05fc811bbdf380c3fa7c12296
>>> 9a4114ffa7b6f5f4635e3745a8dc051d15d4596a
>>> 633f2ea26665d37bb3c8ae30799aa14988622653
>>> 63d7bbe9ded4146e3f78e5742b119fa1fdb52665
>>> 417ae1476de3ae9689a374d70565f41b3474641e
>>> ea0760cfc00b9e534423fdaf630d1c8ce7a5ede0
>>> b24e71798871089da1a4ab049db2800afc1aac0c
>>> fe4402931e43e81a4129eba41d05cf8907603af5
>>> 65993d64a31844ad444694efb2d159eb9c883e49
>>> c0c06bd244179f754d68684fd87674585a153e40
>>> 01fe9dbde19a1a27b8ee63e2d964562962e1eb78
>>> a37f2f87edc1b6e5932becf6e51535d36b690f2a
>>> bdd92c9ad287e03a2ec52f5a89c470cd5caae1c2
>>>
>>>
>>>
>>> I'd guess ccab5c82759e2ace74b2e84f82d1e0eedd932571 could be the
>>> cause. Can you check if the appended revert of that commit makes
>>> things disappear? 
>> It seems like you guessed perfectly correct - reverting the commit makes
>> those notifications go away at once.
>>
> Without this reverted you see messages?  I missed the earlier stuff,
> what message are you seeing?
>
Since 2.6.39 I saw those as soon as I start up the xserver:

May 22 14:41:34 localhost kernel: [   57.525844] CPU4: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525848] CPU0: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525851] CPU1: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525854] CPU2: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525856] CPU5: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525859] CPU3: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525861] Disabling lock
debugging due to kernel taint
May 22 14:41:34 localhost kernel: [   57.525869] CPU6: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.525872] CPU7: Package power
limit notification (total events = 1)
May 22 14:41:34 localhost kernel: [   57.536890] CPU1: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536893] CPU4: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536896] CPU2: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536899] CPU3: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536901] CPU5: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536904] CPU0: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536915] CPU6: Package power
limit normal
May 22 14:41:34 localhost kernel: [   57.536918] CPU7: Package power
limit normal