Hello,

kernel test robot noticed "kunit.list-kunit-test.fail" on:

commit: 17640748eb3875e486805e2d98ca1044a3a69b93 ("list: test: fix tests for list_cut_position()") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 5acd9952f95fb4b7da6d09a3be39195a80845eb6]

in testcase: kunit version: with following parameters:

group: group-00

compiler: gcc-12 test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz (Skylake) with 16G 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@intel.com | Closes: https://lore.kernel.org/oe-lkp/202409161554.6c3e8d5d-oliver.sang@intel.com

below 2 cases can pass on parent but fail on this commit.

13a6473783aaced3 17640748eb3875e486805e2d98c ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :9 67% 6:6 kunit.list-kunit-test.list_test_list_cut_before.fail :9 67% 6:6 kunit.list-kunit-test.list_test_list_cut_position.fail

[ 143.881460] KTAP version 1 [ 143.884865] 1..3 [ 143.887802] KTAP version 1 [ 143.891541] # Subtest: list-kunit-test [ 143.896316] # module: list_test [ 143.896336] 1..39 [ 143.904046] ok 1 list_test_list_init [ 143.904607] ok 2 list_test_list_add [ 143.909698] ok 3 list_test_list_add_tail [ 143.915034] ok 4 list_test_list_del [ 143.920415] ok 5 list_test_list_replace [ 143.925428] ok 6 list_test_list_replace_init [ 143.930900] ok 7 list_test_list_swap [ 143.936712] ok 8 list_test_list_del_init [ 143.941952] ok 9 list_test_list_del_init_careful [ 143.947363] ok 10 list_test_list_move [ 143.953422] ok 11 list_test_list_move_tail [ 143.958536] ok 12 list_test_list_bulk_move_tail [ 143.964192] ok 13 list_test_list_is_head [ 143.970279] ok 14 list_test_list_is_first [ 143.975777] ok 15 list_test_list_is_last [ 143.981871] ok 16 list_test_list_empty [ 143.987375] ok 17 list_test_list_empty_careful [ 143.992611] ok 18 list_test_list_rotate_left [ 143.998511] ok 19 list_test_list_rotate_to_front [ 144.004367] ok 20 list_test_list_is_singular [ 144.010375] # list_test_list_cut_position: EXPECTATION FAILED at lib/list-test.c:409 Expected cur == &entries[i], but cur == ffffc9000126fd70 &entries[i] == ffffc9000126fd50 [ 144.016196] not ok 21 list_test_list_cut_position [ 144.040950] # list_test_list_cut_before: EXPECTATION FAILED at lib/list-test.c:440 Expected cur == &entries[i], but cur == ffffc9000129fd60 &entries[i] == ffffc9000129fd50 [ 144.047033] # list_test_list_cut_before: EXPECTATION FAILED at lib/list-test.c:440 Expected cur == &entries[i], but cur == ffffc9000129fd70 &entries[i] == ffffc9000129fd60 [ 144.071616] not ok 22 list_test_list_cut_before [ 144.096387] ok 23 list_test_list_splice [ 144.102425] ok 24 list_test_list_splice_tail [ 144.107897] ok 25 list_test_list_splice_init [ 144.113704] ok 26 list_test_list_splice_tail_init [ 144.119664] ok 27 list_test_list_entry [ 144.126022] ok 28 list_test_list_entry_is_head [ 144.131275] ok 29 list_test_list_first_entry [ 144.137246] ok 30 list_test_list_last_entry [ 144.143084] ok 31 list_test_list_first_entry_or_null [ 144.148823] ok 32 list_test_list_next_entry [ 144.155283] ok 33 list_test_list_prev_entry [ 144.161048] ok 34 list_test_list_for_each [ 144.166792] ok 35 list_test_list_for_each_prev [ 144.172318] ok 36 list_test_list_for_each_safe [ 144.178278] ok 37 list_test_list_for_each_prev_safe [ 144.184235] ok 38 list_test_list_for_each_entry [ 144.190607] ok 39 list_test_list_for_each_entry_reverse [ 144.196199] # list-kunit-test: pass:37 fail:2 skip:0 total:39 [ 144.202470] # Totals: pass:37 fail:2 skip:0 total:39 [ 144.208908] not ok 1 list-kunit-test

The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240916/202409161554.6c3e8d5d-olive...