Hello, kernel test robot noticed "kernel-selftests.kvm.memslot_perf_test.fail" on: commit: 39042079a0c241d09fa6fc3bb67c2ddf60011d0f ("kmemleak: avoid RCU stalls when freeing metadata for per-CPU pointers") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [test failed on linus/master 9d64bf433c53cab2f48a3fff7a1f2a696bc5229a] [test failed on linux-next/master ad5c60d66016e544c51ed98635a74073f761f45d] in testcase: kernel-selftests version: kernel-selftests-x86_64-60acb023-1_20230329 with following parameters: group: kvm compiler: gcc-12 test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480+ (Sapphire Rapids) 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/202401251429.d3dea02b-oliver.sang@xxxxxxxxx The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240125/202401251429.d3dea02b-oliver.sang@xxxxxxxxx # timeout set to 120 # selftests: kvm: memslot_perf_test # Testing map performance with 1 runs, 5 seconds each # Memslot count too high for this test, decrease the cap (max is 8209) # # Testing unmap performance with 1 runs, 5 seconds each # Test took 9.178259867s for slot setup + 5.035747214s all iterations # Done 85 iterations, avg 0.059244084s each # Best runtime result was 0.059244084s per iteration (with 85 iterations) # # Testing unmap chunked performance with 1 runs, 5 seconds each # Test took 9.460993790s for slot setup + 5.001833746s all iterations # Done 84 iterations, avg 0.059545639s each # Best runtime result was 0.059545639s per iteration (with 84 iterations) # # Testing move active area performance with 1 runs, 5 seconds each # Test took 9.235748282s for slot setup + 5.001305107s all iterations # Done 4807 iterations, avg 0.001040421s each # Best runtime result was 0.001040421s per iteration (with 4807 iterations) # # Testing move inactive area performance with 1 runs, 5 seconds each # Test took 9.113425177s for slot setup + 5.001150112s all iterations # Done 4534 iterations, avg 0.001103032s each # Best runtime result was 0.001103032s per iteration (with 4534 iterations) # # Testing RW performance with 1 runs, 5 seconds each # not ok 71 selftests: kvm: memslot_perf_test # TIMEOUT 120 seconds -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki