mrforever Posted February 18, 2014 Report Share Posted February 18, 2014 Hi, all Does anybody know the differences between debug_all and debug_pp. When i use -debug_all option, vcs runs my test successfully, it will failed if i change -debug_all to -debug_pp. This is the error message and corresponding code: Error-[NOA] Null object access /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_pool.svh, 307 The object is being used before it was constructed/allocated. Please make sure that the object is newed before using it. #0 in \uvm_object_string_pool#(uvm_event)::get at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_pool.svh:307 #1 in \uvm_transaction::new at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_transaction.svh:494 #2 in \uvm_sequence_item::new at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/seq/uvm_sequence_item.svh:53 #3 in \my_tr::new at ../sv/common/my_tr.sv:495 #4 in \uvm_object_registry#(my_tr,"my_tr")::create_object at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_registry.svh:197 #5 in \uvm_factory::create_object_by_type at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_factory.svh:1104 #6 in \uvm_object_registry#(my_tr,"my_tr")::create at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_registry.svh:248 #7 in \my_monitor::run_phase at ../sv/master/my_monitor.sv:91 #8 in \uvm_run_phase::exec_task at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_common_phases.svh:245 #9 in \uvm_task_phase::execute at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:150 #10 in \uvm_task_phase::m_traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:112 #11 in \uvm_task_phase::m_traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:92 #12 in \uvm_task_phase::m_traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:92 #13 in \uvm_task_phase::m_traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:92 #14 in \uvm_task_phase::m_traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:92 #15 in \uvm_task_phase::m_traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:92 #16 in \uvm_task_phase::traverse at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_task_phase.svh:80 #17 in \uvm_phase::execute_phase at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_phase.svh:1171 #18 in \uvm_phase::m_run_phases at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_phase.svh:1847 #19 in \uvm_root::run_test at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_root.svh:417 #20 in run_test at /EDA_Tools/synopsys/vcs_vE-2011.03/etc/uvm-1.1/uvm-1.1d/src/base/uvm_globals.svh:40 #21 in unnamed$$_15 at ../sv/top/my_top.sv:470 #22 in my_tb_top Pieces code of my_monitor.sv: virtual task run_phase(uvm_phase phase); my_tr axi_item; @(negedge clkmg_vif.rst); forever begin @(this.clkmg_vif.wait_one_clk); axi_item = my_tr::type_id::create("axi_item"); collect_pkt(axi_item); scb_port.write(axi_item); end endtask : run_phase By the way, class my_tr has using the field and factory mechanism. Anybody met the same problem? Regards Quote Link to comment Share on other sites More sharing options...
apfitch Posted February 21, 2014 Report Share Posted February 21, 2014 Hi Mr Forever, you probably need to contact Synopsys support. debug_all and debug_pp are described in the VCS manuals, regards Alan P.S. Of course the first thing Synopsys will probably ask is why you're using such an old version :-) Quote Link to comment Share on other sites More sharing options...
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