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XMSIM: *E,SST2ER: SST2 interface error: Stale file handle

NP202512229215

Hi,

 

  I am facing below issue in regression.

    xmsim: *E,SST2ER: SST2 interface error:  Stale file handle.

 

Rahul suggested to refer the cadence site and I picked up the first solution (simulation arguments)

 

Command Addition (While running simulation)

    bsub -J -tb /home/shark8x8_c28_workareas3/work_dv/nxg13282_S8_1411_Dec18_v2/data/ida_smarttrx_shark8x8_ic_tb_lib/ida_smarttrx_shark8x8_ic_tb/nccoex/run_test -sim shark_rfe_cfg -tb vsw_M7_RFE_access_csr_reg_test -uvm_test soc_extspi_rfe_access_reg_test -sv -regr -sim_args +uvm_set_config_string=cdns_uvm_sst2_tr_database,db_name,/dev/null

 

Simulator picking the arguments (Message in log file)

    UVM_INFO @0 [UVM_CMDLINE_PROC]: Applying config setting from the command line: +uvm_set_config_string=cdns_uvm_sst2_tr_database,db_name,/dev/null; T=0

 

New Error popping (Message from logfile)

UVM_INFO @0 /pkg/synopsys-designware-/vip_collection/vip/svt/uart_svt/Q-2020.06-T-20200615/uart_agent_svt/sverilog/src/ncv/svt_uart_agent.svp(520) [run_phase]: svt_uart_agent RUN-FLOW: Finishing...; T=0

SDI/Verilog Transaction Recording Facility Version 24.09-s011

SDI2 Transaction Recording API Version 24.09-s011

*** Error from SDI2:

SDI could not create the SST2 recording database directory:

'/dev/null.shm'.

The error from the Unix mkdir system call is:

'Permission denied'

*** End of error message from SDI2

 

Vmanager Screenshot

 

 

Solution Mentioned in website

 

Thanks,

Nanda

  • StephenH

    Hi Nanda.

    Does the simulation complete despite this error? 

  • StephenH

    I tried using the "codec" example from the UVM-1.2 installation, and the plusarg approach produces the errors but the test continues to run OK and passes, without creating the SHM file. As per the application note that you refer to, the simulator logs report:

    Message!     [SDI/Verilog]                                                     
        SDI recording is disabled because of the failure to open a
    recording database,with filename = '/dev/null'
    Current simulation time = 286250                                                                         
        "/grid/avs/install/xcelium/2409/24.09.011/tools/methodology/UVM/CDNS-1.2/additions/sv/cdns_recording.svh", 350: $sdi_open(db_name_l,use_existing_db,use_compression);

    I note that you mention vManager - you might need to modify your log filters to suppress the SDI error in order for the test to be shown as passing in vManager, although in my trial with uvm.fpt and cdsn_sim.flt it was not causing vm_scan.pl to identify any failures.

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