Hello,
we fould the test failed on a Cooper Lake, not sure if this is expected.
below full report FYI.
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/next/linux-next.git master
[test failed on linux-next/master 37136bf5c3a6f6b686d74f41837a6406bec6b7bc]
in testcase: kernel-selftests
version: kernel-selftests-x86_64-7503345ac5f5-1_20241208
with following parameters:
group: kvm
config: x86_64-rhel-9.4-kselftests
compiler: gcc-12
test machine: 224 threads 4 sockets Intel(R) Xeon(R) Platinum 8380H CPU @ 2.90GHz (Cooper Lake) with 192G 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/202501141009.30c629b4-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
# ==== Test Assertion Failure ====
# x86/pmu_counters_test.c:129: count >= (10 * 4 + 5)
# pid=6278 tid=6278 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 0x0000000000402663: test_arch_events at pmu_counters_test.c:304
# 7 (inlined by) test_intel_counters at pmu_counters_test.c:609
# 8 (inlined by) main at pmu_counters_test.c:642
# 9 0x00007f3b134f9249: ?? ??:0
# 10 0x00007f3b134f9304: ?? ??:0
# 11 0x0000000000402900: _start at ??:?
# count >= NUM_INSNS_RETIRED
not ok 21 selftests: kvm: pmu_counters_test # exit=254
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250114/202501141009.30c629b4-lkp@xxxxxxxxx
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
