In case we don't have PEBS, the LBR fixup doesn't make sense. Signed-off-by: Peter Zijlstra LKML-Reference: --- arch/x86/kernel/cpu/perf_event.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) Index: linux-2.6/arch/x86/kernel/cpu/perf_event.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/cpu/perf_event.c +++ linux-2.6/arch/x86/kernel/cpu/perf_event.c @@ -497,12 +497,13 @@ static int x86_pmu_hw_config(struct perf int precise = 0; /* Support for constant skid */ - if (x86_pmu.pebs) + if (x86_pmu.pebs) { precise++; - /* Support for IP fixup */ - if (x86_pmu.lbr_nr) - precise++; + /* Support for IP fixup */ + if (x86_pmu.lbr_nr) + precise++; + } if (event->attr.precise_ip > precise) return -EOPNOTSUPP; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/