[test-triage] flaky rv_dm_stress_all_with_rand_reset test

nbdd0121 commented 2 months ago

Hierarchy of regression failure

Block level

Failure Description

UVM_ERROR (rv_dm_jtag_dmi_dm_inactive_vseq.sv:24) [rv_dm_jtag_dmi_dm_inactive_vseq] Check failed rdata == as_reg.get_reset() ( [] vs []) has 5 failures:

Test rv_dm_stress_all_with_rand_reset has 5 failures.

    0.rv_dm_stress_all_with_rand_reset.66975641602902106057314263067713562914841077465994968986660128468372726806578
    Line 268, in log /container/opentitan-public/scratch/os_regression/rv_dm-sim-vcs/0.rv_dm_stress_all_with_rand_reset/latest/run.log

      UVM_ERROR @ 1851933421 ps: (rv_dm_jtag_dmi_dm_inactive_vseq.sv:24) [uvm_test_top.env.virtual_sequencer.rv_dm_jtag_dmi_dm_inactive_vseq] Check failed rdata == as_reg.get_reset() (31 [0x1f] vs 0 [0x0])
      UVM_INFO @ 1851933421 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
      --- UVM Report catcher Summary ---

    2.rv_dm_stress_all_with_rand_reset.102753751660746842027780832671237996069892575362127291217035800174311628604811
    Line 257, in log /container/opentitan-public/scratch/os_regression/rv_dm-sim-vcs/2.rv_dm_stress_all_with_rand_reset/latest/run.log

      UVM_ERROR @ 1397913953 ps: (rv_dm_jtag_dmi_dm_inactive_vseq.sv:24) [uvm_test_top.env.virtual_sequencer.rv_dm_jtag_dmi_dm_inactive_vseq] Check failed rdata == as_reg.get_reset() (2280483741 [0x87ed6b9d] vs 0 [0x0])
      UVM_INFO @ 1397913953 ps: (uvm_report_catcher.svh:705) [UVM/REPORT/CATCHER]
      --- UVM Report catcher Summary ---

    ... and 3 more failures.

Steps to Reproduce

GitHub Revision: aad711e1bc33a541503e9a7a5e006ec87bd7602b, also reproduced with f02c6d9a89ec4d8f7d86d1856faabfcbc97bb38b
dvsim invocation command to reproduce the failure, inclusive of build and run seeds: util/dvsim/dvsim.py hw/ip/rv_dm/dv/rv_dm_sim_cfg.hjson -i rv_dm_tap_fsm_rand_reset --build-seed 38297581588405771015102977205739484163575733999253050480227719508149669635625 --fixed-seed 19115431594293451092703363228805372483460351133668947117086596989518850081851 --verbose

Tests with similar or related failures

No response

vogelpi commented 1 month ago

Thanks for filing the issue @nbdd0121 . This is a V3 test and thus I am giving it a lower priority than normal, plus moving it to M7. I am assigning @rswarbrick our RV_DM master for now :-)

rswarbrick commented 1 week ago

This is now passing for all seeds (except one seed in the last run, which I've just filed a PR to fix). I don't think we need to track things with this issue any more.

lowRISC / opentitan