On Sun, 7 Apr 2019, Cyrill Gorcunov wrote: > Vince, could you please disable alias events and see if it change > anything, once you have time? Note once we've aliases disabled the > counter for cpu cycles get used for NMI watchdog so PERF_COUNT_HW_CPU_CYCLES > won't be available in "perf" tool itself, but I guess perf_fuzzer uses > direct kernel syscall. > --- > arch/x86/events/intel/p4.c | 2 ++ > 1 file changed, 2 insertions(+) > > Index: linux-tip.git/arch/x86/events/intel/p4.c > =================================================================== > --- linux-tip.git.orig/arch/x86/events/intel/p4.c > +++ linux-tip.git/arch/x86/events/intel/p4.c > @@ -622,6 +622,8 @@ static u64 p4_get_alias_event(u64 config > u64 config_match; > int i; > > + return 0; > + > /* > * Only event with special mark is allowed, > * we're to be sure it didn't come as malformed >
It still crashes at the same place with this patch and my reproducible test case. Vince
