Hi, On Thu, Jul 31, 2025 at 10:11:48AM +0100, Leo Yan wrote: > Hi, > > On Thu, Jul 31, 2025 at 03:26:01PM +0800, kernel test robot wrote: > > [...] > > > 2025-07-30 19:06:25 sudo /usr/src/linux-perf-x86_64-rhel-9.4-bpf-e350af63969b875598f0656a20d801bbcaa7bd76/tools/perf/perf test 64 -v > > 64: Convert perf time to TSC : > > 64.1: TSC support : Running (2 active) > > 64.1: TSC support : Ok > > --- start --- > > test child forked, pid 7359 > > Using CPUID GenuineIntel-6-9E-D > > evlist__open() failed > > ---- end(-1) ---- > > 64.2: Perf time to TSC : FAILED! > > I roughly read the job.yaml file, seems it does not install clang. > Thus, the building will not enalbe the option BUILD_BPF_SKEL=1. > > As a result, auxtrace__update_bpf_map() will return a failure. I will > fix this issue in next spin. > > Thanks for test and reporting. I played a bit and found that if with the option "BUILD_BPF_SKEL := 0", I even failed to build perf (I will fix in new version). I think you should have built perf with enabled BUILD_BPF_SKEL. However, in this case, I cannot reproduce the test failure, both on my x86_64 and Arm64 machines. I reviewed the code and have no clue this patch will cause the failure. Is it possible to run the test at your side with the option "perf test 64 -vvv" for debugging info? Or if it is possible related to the setting kernel.perf_event_paranoid? Thanks, Leo
