system verilog - test case hanging at start_item -


i've been facing problem start_item. every time gets start_item, entire test hangs , there's no way can find out issue is. pointers appreciated.

here's code looks like:

task good_bad_seq_0_task ();   rx_eth10g req;   rx_eth10g rsp;   rx_eth10g_knobs t;   int good_bad_seq_count;   //'vy_good_bad_long_seq' loop variable   int vy_good_bad_long_seq;   int tmp_rand_status;   tmp_rand_status = std::randomize (good_bad_seq_count) {      good_bad_seq_count inside {100};   };   if(!tmp_rand_status) begin     `uvm_error(get_full_name(), "randomization failed!");   end   `uvm_info(get_full_name(), $sformatf(": driving good_bad_long_seq %0d times ...",good_bad_seq_count), uvm_high)   for(vy_good_bad_long_seq = 0; vy_good_bad_long_seq < good_bad_seq_count; vy_good_bad_long_seq++) begin     req = new();     start_item (req);     // nothing after executed     t = good_bad_seq_knob;     req.set_seqitem_type (t);     if(!req.randomize ()) begin       `uvm_error("rand_failed", $psprintf("randomization failed : %s",req.get_full_name()));     end     finish_item (req);     get_response (rsp);   end   `uvm_info(get_full_name(), $sformatf(": completed %0d times ...",good_bad_seq_count), uvm_high) endtask: good_bad_seq_0_task

thanks lot.

the start_item(...) task unblock once driver connected item's parent sequencer calls get_next_item(...). you'll need check driver implementation.


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