* 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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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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