ip link set can1 type can bitrate 1000000
ip link set up dev can1
-ugw -r mmapbusy &
+# mount -t debugfs none /sys/kernel/debug
+# cd /sys/kernel/debug/tracing/
+# echo function_graph > current_tracer
+# echo mscan_start_xmit > set_graph_function
+# echo > trace
+
+params=$(sed -e 's/.* ugw=|\([^"]*\)|.*/\1/' /proc/cmdline)
+
+ugw $params &