On Tue, Mar 16, 2021 at 9:28 PM Liang, Kan wrote:
>
>
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> On 3/16/2021 3:22 AM, Namhyung Kim wrote:
> > Hi Peter and Kan,
> >
> > On Thu, Mar 4, 2021 at 5:22 AM Peter Zijlstra wrote:
> >>
> >> On Wed, Mar 03, 2021 at 02:53:00PM -0500, Liang, Kan wrote:
> >>> On 3/3/2021 1:59 PM, Peter Zijlstra
On 3/16/2021 2:34 PM, Stephane Eranian wrote:
On Tue, Mar 16, 2021 at 5:28 AM Liang, Kan wrote:
On 3/16/2021 3:22 AM, Namhyung Kim wrote:
Hi Peter and Kan,
On Thu, Mar 4, 2021 at 5:22 AM Peter Zijlstra wrote:
On Wed, Mar 03, 2021 at 02:53:00PM -0500, Liang, Kan wrote:
On 3/3/2021
On Tue, Mar 16, 2021 at 5:28 AM Liang, Kan wrote:
>
>
>
> On 3/16/2021 3:22 AM, Namhyung Kim wrote:
> > Hi Peter and Kan,
> >
> > On Thu, Mar 4, 2021 at 5:22 AM Peter Zijlstra wrote:
> >>
> >> On Wed, Mar 03, 2021 at 02:53:00PM -0500, Liang, Kan wrote:
> >>> On 3/3/2021 1:59 PM, Peter Zijlstra
On 3/16/2021 3:22 AM, Namhyung Kim wrote:
Hi Peter and Kan,
On Thu, Mar 4, 2021 at 5:22 AM Peter Zijlstra wrote:
On Wed, Mar 03, 2021 at 02:53:00PM -0500, Liang, Kan wrote:
On 3/3/2021 1:59 PM, Peter Zijlstra wrote:
On Wed, Mar 03, 2021 at 05:42:18AM -0800, kan.li...@linux.intel.com
Hi Peter and Kan,
On Thu, Mar 4, 2021 at 5:22 AM Peter Zijlstra wrote:
>
> On Wed, Mar 03, 2021 at 02:53:00PM -0500, Liang, Kan wrote:
> > On 3/3/2021 1:59 PM, Peter Zijlstra wrote:
> > > On Wed, Mar 03, 2021 at 05:42:18AM -0800, kan.li...@linux.intel.com wrote:
>
> > > > +++
On 3/3/2021 1:59 PM, Peter Zijlstra wrote:
On Wed, Mar 03, 2021 at 05:42:18AM -0800, kan.li...@linux.intel.com wrote:
For some old CPUs (HSW and earlier), the PEBS status in a PEBS record
may be mistakenly set to 0. To minimize the impact of the defect, the
commit was introduced to try to
On Wed, Mar 03, 2021 at 02:53:00PM -0500, Liang, Kan wrote:
> On 3/3/2021 1:59 PM, Peter Zijlstra wrote:
> > On Wed, Mar 03, 2021 at 05:42:18AM -0800, kan.li...@linux.intel.com wrote:
> > > +++ b/arch/x86/events/intel/ds.c
> > > @@ -2000,18 +2000,6 @@ static void intel_pmu_drain_pebs_nhm(struct
On Wed, Mar 03, 2021 at 05:42:18AM -0800, kan.li...@linux.intel.com wrote:
> For some old CPUs (HSW and earlier), the PEBS status in a PEBS record
> may be mistakenly set to 0. To minimize the impact of the defect, the
> commit was introduced to try to avoid dropping the PEBS record for some
>
From: Kan Liang
This reverts commit 01330d7288e0 ("perf/x86: Allow zero PEBS status with
only single active event")
A repeatable crash can be triggered by the perf_fuzzer on some Haswell
system.
https://lore.kernel.org/lkml/7170d3b-c17f-1ded-52aa-cc6d9ae99...@maine.edu/
For some old CPUs (HSW
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