* Re: [PATCH] x86, hyperv: bypass the timer_irq_works() check
[not found] ` <52E2D904.6020608@zytor.com>
@ 2014-01-26 4:42 ` Jason Wang
2014-02-11 8:30 ` Jason Wang
0 siblings, 1 reply; 2+ messages in thread
From: Jason Wang @ 2014-01-26 4:42 UTC (permalink / raw)
To: H. Peter Anvin, kys, haiyangz, tglx, mingo, x86, devel,
linux-kernel
Cc: stable@vger.kernel.org >> Stable
On 01/25/2014 05:20 AM, H. Peter Anvin wrote:
> On 01/23/2014 10:02 PM, Jason Wang wrote:
>> This patch bypass the timer_irq_works() check for hyperv guest since:
>>
>> - It was guaranteed to work.
>> - timer_irq_works() may fail sometime due to the lpj calibration were inaccurate
>> in a hyperv guest or a buggy host.
>>
>> In the future, we should get the tsc frequency from hypervisor and use preset
>> lpj instead.
>>
>> Cc: K. Y. Srinivasan <kys@microsoft.com>
>> Cc: Haiyang Zhang <haiyangz@microsoft.com>
>> Signed-off-by: Jason Wang <jasowang@redhat.com>
> This should be in -stable, right?
>
> -hpa
>
>
Oh, right.
Cc: <stable@vger.kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] x86, hyperv: bypass the timer_irq_works() check
2014-01-26 4:42 ` [PATCH] x86, hyperv: bypass the timer_irq_works() check Jason Wang
@ 2014-02-11 8:30 ` Jason Wang
0 siblings, 0 replies; 2+ messages in thread
From: Jason Wang @ 2014-02-11 8:30 UTC (permalink / raw)
To: H. Peter Anvin, kys, haiyangz, tglx, mingo, x86, devel,
linux-kernel
Cc: stable@vger.kernel.org >> Stable
On 01/26/2014 12:42 PM, Jason Wang wrote:
> On 01/25/2014 05:20 AM, H. Peter Anvin wrote:
>> On 01/23/2014 10:02 PM, Jason Wang wrote:
>>> This patch bypass the timer_irq_works() check for hyperv guest since:
>>>
>>> - It was guaranteed to work.
>>> - timer_irq_works() may fail sometime due to the lpj calibration were inaccurate
>>> in a hyperv guest or a buggy host.
>>>
>>> In the future, we should get the tsc frequency from hypervisor and use preset
>>> lpj instead.
>>>
>>> Cc: K. Y. Srinivasan <kys@microsoft.com>
>>> Cc: Haiyang Zhang <haiyangz@microsoft.com>
>>> Signed-off-by: Jason Wang <jasowang@redhat.com>
>> This should be in -stable, right?
>>
>> -hpa
>>
>>
> Oh, right.
>
> Cc: <stable@vger.kernel.org>
Ping, need I resend the patch or it's ok for you to apply?
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] ` <52E2D904.6020608@zytor.com>
2014-01-26 4:42 ` [PATCH] x86, hyperv: bypass the timer_irq_works() check Jason Wang
2014-02-11 8:30 ` Jason Wang
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