Hello, we reported "[linux-next:master] [KVM] 7803339fa9: kernel-selftests.kvm.pmu_counters_test.fail" in https://lore.kernel.org/all/202501141009.30c629b4-lkp@xxxxxxxxx/ we noticed there are some discussion there about the issue and fix. this commit is in mainline now, and we captured the same issue again on a Ice Lake platform. another thing is we found the issue is random. as below, 2 times failure out of 6 runs for 7803339fa9. for parent, all 9 runs pass. so we make out this report for this commit again FYI. ========================================================================================= tbox_group/testcase/rootfs/kconfig/compiler/group: lkp-icl-2sp9/kernel-selftests/debian-12-x86_64-20240206.cgz/x86_64-rhel-9.4-kselftests/gcc-12/kvm bd7791078ac223f5 7803339fa929387bbc66479532a ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :9 22% 2:6 kernel-selftests.kvm.pmu_counters_test.fail kernel test robot noticed "kernel-selftests.kvm.pmu_counters_test.fail" on: commit: 7803339fa929387bbc66479532afbaf8cbebb41b ("KVM: selftests: Use data load to trigger LLC references/misses in Intel PMU") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [test failed on linus/master 6832a9317eee280117cd695fa885b2b7a7a38daf] [test failed on linux-next/master d086c886ceb9f59dea6c3a9dae7eb89e780a20c9] in testcase: kernel-selftests version: kernel-selftests-x86_64-7ff71e6d9239-1_20250215 with following parameters: group: kvm config: x86_64-rhel-9.4-kselftests compiler: gcc-12 test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <oliver.sang@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-lkp/202507220727.f2cbbd0a-lkp@xxxxxxxxx The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250722/202507220727.f2cbbd0a-lkp@xxxxxxxxx # timeout set to 120 # selftests: kvm: pmu_counters_test # Random seed: 0x6b8b4567 # Testing arch events, PMU version 0, perf_caps = 0 # Testing GP counters, PMU version 0, perf_caps = 0 # Testing fixed counters, PMU version 0, perf_caps = 0 # Testing arch events, PMU version 0, perf_caps = 2000 # Testing GP counters, PMU version 0, perf_caps = 2000 # Testing fixed counters, PMU version 0, perf_caps = 2000 # Testing arch events, PMU version 1, perf_caps = 0 # Testing GP counters, PMU version 1, perf_caps = 0 # Testing fixed counters, PMU version 1, perf_caps = 0 # Testing arch events, PMU version 1, perf_caps = 2000 # Testing GP counters, PMU version 1, perf_caps = 2000 # Testing fixed counters, PMU version 1, perf_caps = 2000 # Testing arch events, PMU version 2, perf_caps = 0 # ==== Test Assertion Failure ==== # x86/pmu_counters_test.c:126: count != 0 # pid=11038 tid=11038 errno=4 - Interrupted system call # 1 0x0000000000411281: assert_on_unhandled_exception at processor.c:625 # 2 0x00000000004075d4: _vcpu_run at kvm_util.c:1652 # 3 (inlined by) vcpu_run at kvm_util.c:1663 # 4 0x0000000000402c5e: run_vcpu at pmu_counters_test.c:62 # 5 0x0000000000402e4d: test_arch_events at pmu_counters_test.c:315 # 6 0x000000000040283e: test_arch_events at pmu_counters_test.c:599 # 7 (inlined by) test_intel_counters at pmu_counters_test.c:599 # 8 (inlined by) main at pmu_counters_test.c:642 # 9 0x00007fb974a65249: ?? ??:0 # 10 0x00007fb974a65304: ?? ??:0 # 11 0x0000000000402900: _start at ??:? # 0x0 == 0x0 (count == 0) not ok 21 selftests: kvm: pmu_counters_test # exit=254 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
