From 0d5eb14c1e2ed4a8413458cb3b779f215ff214aa Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 22 Oct 2024 18:59:10 +0300 Subject: perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling Events with aux actions or aux sampling expect the PMI to coincide with the event, which does not happen for large PEBS, so do not enable large PEBS in that case. Signed-off-by: Adrian Hunter Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Andi Kleen Link: https://lkml.kernel.org/r/20241022155920.17511-5-adrian.hunter@intel.com --- arch/x86/events/intel/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 7ca40002a19b..bb284aff7bfd 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -3962,8 +3962,8 @@ static int intel_pmu_hw_config(struct perf_event *event) if (!(event->attr.freq || (event->attr.wakeup_events && !event->attr.watermark))) { event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD; - if (!(event->attr.sample_type & - ~intel_pmu_large_pebs_flags(event))) { + if (!(event->attr.sample_type & ~intel_pmu_large_pebs_flags(event)) && + !has_aux_action(event)) { event->hw.flags |= PERF_X86_EVENT_LARGE_PEBS; event->attach_state |= PERF_ATTACH_SCHED_CB; } -- cgit v1.2.3-70-g09d2