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("selftests/damon: add python and drgn-based DAMON sysfs test") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master d086c886ceb9f59dea6c3a9dae7eb89e780a20c9] in testcase: kernel-selftests version: kernel-selftests-x86_64-7ff71e6d9239-1_20250215 with following parameters: group: damon config: x86_64-rhel-9.4-kselftests compiler: gcc-12 test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory (please refer to attached dmesg/kmsg for entire log/backtrace) besides the failure of this new added test, we also noticed below tests failed while passing on parent. e227472ebf00b6b5 4ece01897627ddeefcede4ac709 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :6 100% 6:6 kernel-selftests.damon.damon_nr_regions.py.fail :6 100% 6:6 kernel-selftests.damon.damos_quota.py.fail :6 100% 6:6 kernel-selftests.damon.damos_quota_goal.py.fail :6 100% 6:6 kernel-selftests.damon.damos_tried_regions.py.fail 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 | Closes: https://lore.kernel.org/oe-lkp/202507220707.9c5d6247-lkp@intel.com # timeout set to 300 # selftests: damon: sysfs.py # Traceback (most recent call last): # File "/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-4ece01897627ddeefcede4ac709cd99763994dc4/tools/testing/selftests/damon/./sysfs.py", line 42, in # main() # File "/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-4ece01897627ddeefcede4ac709cd99763994dc4/tools/testing/selftests/damon/./sysfs.py", line 31, in main # status, err = dump_damon_status_dict(kdamonds.kdamonds[0].pid) # ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ # File "/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-4ece01897627ddeefcede4ac709cd99763994dc4/tools/testing/selftests/damon/./sysfs.py", line 13, in dump_damon_status_dict # rc = subprocess.call(['drgn', dump_script, pid, 'damon_dump_output'], # ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ # File "/usr/lib/python3.11/subprocess.py", line 389, in call # with Popen(*popenargs, **kwargs) as p: # ^^^^^^^^^^^^^^^^^^^^^^^^^^^ # File "/usr/lib/python3.11/subprocess.py", line 1024, in __init__ # self._execute_child(args, executable, preexec_fn, close_fds, # File "/usr/lib/python3.11/subprocess.py", line 1901, in _execute_child # raise child_exception_type(errno_num, err_msg, err_filename) # FileNotFoundError: [Errno 2] No such file or directory: 'drgn' not ok 2 selftests: damon: sysfs.py # exit=1 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250722/202507220707.9c5d6247-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki