Re: [PATCH] perf/x86/amd: Explicitly define PERF_COUNT_HW_REF_CPU_CYCLES as undefined.

On Wed, Apr 27, 2016 at 10:03:45AM +0200, Ingo Molnar wrote: > * Adam Borowski wrote: > > diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c > > index 86a9bec..5fa1b8e 100644 > > --- a/arch/x86/events/amd/core.c > > +++ b/arch/x86/events/amd/core.c > > @@

Re: [PATCH] perf/x86/amd: Explicitly define PERF_COUNT_HW_REF_CPU_CYCLES as undefined.

On Wed, Apr 27, 2016 at 10:03:45AM +0200, Ingo Molnar wrote: > * Adam Borowski wrote: > > diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c > > index 86a9bec..5fa1b8e 100644 > > --- a/arch/x86/events/amd/core.c > > +++ b/arch/x86/events/amd/core.c > > @@ -125,6 +125,7 @@ static

Re: [PATCH] perf/x86/amd: Explicitly define PERF_COUNT_HW_REF_CPU_CYCLES as undefined.

* Adam Borowski wrote: > filter_events() relies on the value of 0 to remove events that are not > applicable, like this one. > > UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:30 > index 9 is out of range for type 'u64 [9]' > UBSAN: Undefined behaviour in

Re: [PATCH] perf/x86/amd: Explicitly define PERF_COUNT_HW_REF_CPU_CYCLES as undefined.

* Adam Borowski wrote: > filter_events() relies on the value of 0 to remove events that are not > applicable, like this one. > > UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:30 > index 9 is out of range for type 'u64 [9]' > UBSAN: Undefined behaviour in

[PATCH] perf/x86/amd: Explicitly define PERF_COUNT_HW_REF_CPU_CYCLES as undefined.

filter_events() relies on the value of 0 to remove events that are not applicable, like this one. UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:30 index 9 is out of range for type 'u64 [9]' UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:9 load of address

[PATCH] perf/x86/amd: Explicitly define PERF_COUNT_HW_REF_CPU_CYCLES as undefined.

filter_events() relies on the value of 0 to remove events that are not applicable, like this one. UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:30 index 9 is out of range for type 'u64 [9]' UBSAN: Undefined behaviour in arch/x86/events/amd/core.c:132:9 load of address