PMU_F_ERR_IBE      22 arch/s390/include/asm/perf_event.h #define PMU_F_ERR_MASK			(PMU_F_ERR_IBE|PMU_F_ERR_LSDA)
PMU_F_ERR_IBE    2077 arch/s390/kernel/perf_cpum_sf.c 		cpuhw->flags |= PMU_F_ERR_IBE;