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On using the +UVM_CONFIG_DB_TRACE as a command line option : I am seeing the following message

UVM_INFO /apps/INCISIV102/10.20.025/tools.lnx86/uvm-1.1/uvm_lib/uvm_sv/src/base/uvm_resource_db.svh(130) @ 0: reporter [CFGDB/GET] Configuration 'uvm_test_top.recording_detail' (type unknown) read by uvm_test_top = null (failed lookup)

After which all subsequent accesses to the config_db return ?

Is there any dependent setup that I am missing ?

Thanks in advance

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i dont think there is an issue here . the only thing the msg is indicating is that someone inside your test is trying to read the config db property "recording_detail' but apparently this property has not been set on your top level test. the attached testcase produces the same msg:

// irun -uvm +UVM_TESTNAME=test1 test143.sv +UVM_CONFIG_DB_TRACE
module test143;
import uvm_pkg::*;
`include "uvm_macros.svh"

class test1 extends uvm_test;


 function new(string name, uvm_component parent); 
   super.new(name, parent);

function void start_of_simulation_phase(uvm_phase phase);
	bit foo;

initial run_test();

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