diff --git a/pipelined/regression/sim-buildroot-batch b/pipelined/regression/sim-buildroot-batch
index 4a145bc9..a8d4038e 100755
--- a/pipelined/regression/sim-buildroot-batch
+++ b/pipelined/regression/sim-buildroot-batch
@@ -32,5 +32,5 @@ echo "CHECKPOINT   = ${CHECKPOINT}"
 
 # *** change config from buildroot to rv64gc
 vsim -c <<!
-do wally-pipelined-batch.do buildroot buildroot $RISCV $INSTR_LIMIT $INSTR_WAVEON $CHECKPOINT
+do wally-pipelined-batch.do buildroot buildroot-no-trace $RISCV $INSTR_LIMIT $INSTR_WAVEON $CHECKPOINT
 !
diff --git a/pipelined/regression/wally-pipelined-batch.do b/pipelined/regression/wally-pipelined-batch.do
index c099e41c..698ba4a3 100644
--- a/pipelined/regression/wally-pipelined-batch.do
+++ b/pipelined/regression/wally-pipelined-batch.do
@@ -41,6 +41,20 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
     run -all
     run -all
     exec ./slack-notifier/slack-notifier.py
+} elseif {$2 eq "buildroot-no-trace"} {
+    vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583
+    # start and run simulation
+    vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -G NO_SPOOFING=1 -o testbenchopt 
+    vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829  -fatal 7
+
+    #-- Run the Simulation
+    echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+    echo "Don't forget to change DEBUG_LEVEL = 0."
+    echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+    run -all
+    run -all
+    exec ./slack-notifier/slack-notifier.py
+
 } else {
     vlog -lint -work wkdir/work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv   ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063
     # start and run simulation