CODEWITHSUNDEEP
system-veriloguvm
Albert Waissman
Albert Waissman

Reputation: 79

drop_objection fails to drop objection

I have simple main_phase as:

virtual task main_phase(uvm_phase phase);
 super.main_phase(phase);
 phase.raise_objection( this );
 #2us;
 phase.drop_objection( this );
endtask : main_phase

This test will timeout, but if i comment out raise_objection and drop_objection test will finish properly, with out executing #2us obviously.

Based on debugging it seems that drop_objection do not trigger m_events[].all_dropped which require for phase to complete. Reason is in side m_evens uvm_root object but drop_objection trys for test object, so it miss-matched.

Any suggestion what may be wrong? I am using UVM-1.2 Thanks,

Upvotes: 0

Views: 1200

Answers (1)

Albert Waissman
Albert Waissman

Reputation: 79

Thanks for suggestion. Here is what turns to be a problem. Recently some one added to base test drain time. My test very short one so i added short time out at command line. I wish that generated error was more descriptive. I found this by running small test and in UVM phase execution last thing was drain time as expected. Albert,

Upvotes: 1

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