From: Andi Kleen
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier family 6 cores.
Tested on Haswell, IvyBridge,
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier family 6 cores.
Tested on
From: Andi Kleen
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier family 6 cores.
Tested on Haswell, IvyBridge,
* Andi Kleen wrote:
> On Tue, Feb 12, 2013 at 09:43:46AM +0100, Ingo Molnar wrote:
> > Was this stress-tested on all affected main CPU types, or only
> > on Haswell?
>
> I tested it on Haswell and Ivy Bridge. I can also try Westmere
> and a Saltwell(Atom), but for the majority of other
* Andi Kleen a...@firstfloor.org wrote:
On Tue, Feb 12, 2013 at 09:43:46AM +0100, Ingo Molnar wrote:
Was this stress-tested on all affected main CPU types, or only
on Haswell?
I tested it on Haswell and Ivy Bridge. I can also try Westmere
and a Saltwell(Atom), but for the majority of
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier family 6 cores.
Tested on
From: Andi Kleen
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier family 6 cores.
Tested on Haswell, IvyBridge,
On Tue, Feb 12, 2013 at 09:43:46AM +0100, Ingo Molnar wrote:
> Was this stress-tested on all affected main CPU types, or only
> on Haswell?
I tested it on Haswell and Ivy Bridge. I can also try
Westmere and a Saltwell(Atom), but for the majority of other family 6
systems I'll need to rely on the
* Andi Kleen wrote:
> From: Andi Kleen
>
> This avoids some problems with spurious PMIs on Haswell.
> Haswell seems to behave more like P4 in this regard. Do
> the same thing as the P4 perf handler by unmasking
> the NMI only at the end. Shouldn't make any difference
> for earlier non P4
* Andi Kleen a...@firstfloor.org wrote:
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any
On Tue, Feb 12, 2013 at 09:43:46AM +0100, Ingo Molnar wrote:
Was this stress-tested on all affected main CPU types, or only
on Haswell?
I tested it on Haswell and Ivy Bridge. I can also try
Westmere and a Saltwell(Atom), but for the majority of other family 6
systems I'll need to rely on the
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier family 6 cores.
Tested on
From: Andi Kleen
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier non P4 cores.
Signed-off-by: Andi Kleen
---
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier non P4 cores.
From: Andi Kleen
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier non P4 cores.
Signed-off-by: Andi Kleen
---
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier non P4 cores.
From: Andi Kleen
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier non P4 cores.
Signed-off-by: Andi Kleen
---
From: Andi Kleen a...@linux.intel.com
This avoids some problems with spurious PMIs on Haswell.
Haswell seems to behave more like P4 in this regard. Do
the same thing as the P4 perf handler by unmasking
the NMI only at the end. Shouldn't make any difference
for earlier non P4 cores.
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