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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "test-bpf.Tail_call_count_preserved_across_function_calls.fail" on: commit: f663a03c8e35c5156bad073a4a8f5e673d656e3f ("bpf, x64: Remove tail call detection") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 62c97045b8f720c2eac807a5f38e26c9ed512371] in testcase: test-bpf version: with following parameters: test: non-jit compiler: gcc-13 test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G 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 | Closes: https://lore.kernel.org/oe-lkp/202406251415.c51865bc-oliver.sang@intel.com [ 43.913560] test_bpf: #0 Tail call leaf jited:1 5 PASS [ 43.913572] test_bpf: #1 Tail call 2 jited:1 ret -1 != 3 FAIL [ 43.914138] test_bpf: #2 Tail call 3 jited:1 ret -1 != 6 FAIL [ 43.914756] test_bpf: #3 Tail call 4 jited:1 ret -1 != 10 FAIL [ 43.915374] test_bpf: #4 Tail call load/store leaf jited:1 5 PASS [ 43.915993] test_bpf: #5 Tail call load/store jited:1 ret -1 != 0 FAIL [ 43.916636] test_bpf: #6 Tail call error path, max count reached jited:1 ret 1000 != 34000 FAIL [ 43.917319] test_bpf: #7 Tail call count preserved across function calls jited:1 ret 1000 != 34000 FAIL [ 43.918799] test_bpf: #8 Tail call error path, NULL target jited:1 5 PASS [ 43.919720] test_bpf: #9 Tail call error path, index out of range jited:1 5 PASS [ 43.920474] test_bpf: test_tail_calls: Summary: 4 PASSED, 6 FAILED, [10/10 JIT'ed] The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240625/202406251415.c51865bc-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki