Re: [PATCH v6] acpi: Issue _OSC call for native thermal interrupt handling

2016-03-23 Thread Rafael J. Wysocki
On Wed, Mar 23, 2016 at 9:22 PM, Srinivas Pandruvada wrote: > On Wed, 2016-03-23 at 12:43 -0400, Linda Knippers wrote: >> I raised a general concern on a previous patch so I found a 1P server >> with Skylake and HWP to try. This doesn't qualify as a tested-by >> since all I did was apply the patc

Re: [PATCH v6] acpi: Issue _OSC call for native thermal interrupt handling

2016-03-23 Thread Srinivas Pandruvada
On Wed, 2016-03-23 at 12:43 -0400, Linda Knippers wrote: > I raised a general concern on a previous patch so I found a 1P server > with Skylake and HWP to try.  This doesn't qualify as a tested-by > since all I did was apply the patch and boot the server but hey, it > booted. Thanks. > > I do hav

Re: [PATCH v6] acpi: Issue _OSC call for native thermal interrupt handling

2016-03-23 Thread Linda Knippers
I raised a general concern on a previous patch so I found a 1P server with Skylake and HWP to try. This doesn't qualify as a tested-by since all I did was apply the patch and boot the server but hey, it booted. I do have a question below... On 3/23/2016 12:07 AM, Srinivas Pandruvada wrote: > The

[PATCH v6] acpi: Issue _OSC call for native thermal interrupt handling

2016-03-22 Thread Srinivas Pandruvada
There are several reports of freeze on enabling HWP (Hardware PStates) feature on Skylake based systems by Intel P states driver. The root cause is identified as the HWP interrupts causing BIOS code to freeze. HWP interrupts uses thermal LVT. Linux natively handles thermal interrupts, but in Skylak