On Tue, 7 Nov 2017, Borislav Petkov wrote: > --- a/arch/x86/oprofile/op_model_ppro.c > +++ b/arch/x86/oprofile/op_model_ppro.c > @@ -212,8 +212,9 @@ static void arch_perfmon_setup_counters(void) > eax.full = cpuid_eax(0xa); > > /* Workaround for BIOS bugs in 6/15. Taken from perfmon2 */ > - if (eax.split.version_id == 0 && __this_cpu_read(cpu_info.x86) == 6 && > - __this_cpu_read(cpu_info.x86_model) == 15) { > + if (eax.split.version_id == 0 && > + boot_cpu_data.x86 == 6 && > + boot_cpu_data.x86_model == 15) { > eax.split.version_id = 2; > eax.split.num_counters = 2; > eax.split.bit_width = 40;
AFAICT, ppro_setup_ctrs() has the same issue