diff --git a/Grid/util/FlightRecorder.h b/Grid/util/FlightRecorder.h
index cd3f1c45..8bd8f0b9 100644
--- a/Grid/util/FlightRecorder.h
+++ b/Grid/util/FlightRecorder.h
@@ -39,6 +39,7 @@ class FlightRecorder {
   static void Truncate(void);
   static void ResetCounters(void);
   static uint64_t ErrorCount(void);
+  static uint64_t CommsErrorCount(void);
   static void xmitLog(void *,uint64_t bytes);
   static void recvLog(void *,uint64_t bytes,int rank);
 };
diff --git a/systems/Aurora/tests/reproBigJob256.pbs b/systems/Aurora/tests/reproBigJob256.pbs
new file mode 100644
index 00000000..8cf75d75
--- /dev/null
+++ b/systems/Aurora/tests/reproBigJob256.pbs
@@ -0,0 +1,62 @@
+#!/bin/bash
+
+#PBS -l select=256
+#PBS -q run_next
+##PBS -A LatticeQCD_aesp_CNDA
+#PBS -A LatticeFlavor
+#PBS -l walltime=06:00:00
+#PBS -N reproBigJob
+#PBS -k doe
+#PBS -l filesystems=flare
+#PBS -l filesystems=home
+
+#export OMP_PROC_BIND=spread
+#unset OMP_PLACES
+
+
+# 56 cores / 6 threads ~9
+export OMP_NUM_THREADS=6
+
+export SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE=1
+export SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE_FOR_D2D_COPY=1
+export SYCL_PROGRAM_COMPILE_OPTIONS="-ze-opt-large-register-file"
+
+export GRID_PRINT_ENTIRE_LOG=0
+export GRID_CHECKSUM_RECV_BUF=1
+export GRID_CHECKSUM_SEND_BUF=1
+
+export MPIR_CVAR_CH4_IPC_GPU_HANDLE_CACHE=generic
+export MPIR_CVAR_NOLOCAL=1
+
+cd $PBS_O_WORKDIR
+
+source ../sourceme.sh
+
+cp $PBS_NODEFILE nodefile
+
+DIR=reproBigJob.$PBS_JOBID
+
+mkdir -p $DIR
+cd $DIR
+
+cp $PBS_NODEFILE nodefile
+
+BINARY=../Test_dwf_mixedcg_prec
+
+echo > pingjob <<EOF
+while read node ; 
+do
+	echo ssh $node killall -HUP Test_dwf_mixedcg_prec
+done < nodefile
+EOF
+
+CMD="mpiexec -np 3072 -ppn 12  -envall --hostfile nodefile \
+	     ../gpu_tile.sh \
+	     $BINARY --mpi 8.8.8.6 --grid 128.128.128.288  \
+		--shm-mpi 0 --comms-overlap --shm 4096 --device-mem 32000 --accelerator-threads 32 --seconds 18000 --log Message --debug-stdout --heartbeat"
+
+echo $CMD > command-line
+env > environment
+$CMD
+grep Oops */Grid.stderr.* > failures.$PBS_JOBID
+