diff --git a/core/experiments/checksum-oostubs/experiment.cc b/core/experiments/checksum-oostubs/experiment.cc
index 89cea6c1..ee957af4 100644
--- a/core/experiments/checksum-oostubs/experiment.cc
+++ b/core/experiments/checksum-oostubs/experiment.cc
@@ -1,5 +1,9 @@
 #include <iostream>
 
+// getpid
+#include <sys/types.h>
+#include <unistd.h>
+
 #include "util/Logger.hpp"
 
 #include "experiment.hpp"
@@ -131,6 +135,13 @@ bool ChecksumOOStuBSExperiment::run()
 	int bit_offset = param.msg.bit_offset();
 	log << "job " << id << " instr " << instr_offset << " mem " << mem_addr << "+" << bit_offset << endl;
 
+	// XXX debug
+	std::stringstream fname;
+	fname << "job." << ::getpid();
+	std::ofstream job(fname.str().c_str());
+	job << "job " << id << " instr " << instr_offset << " (" << param.msg.instr_address() << ") mem " << mem_addr << "+" << bit_offset << endl;
+	job.close();
+
 	// reaching finish() could happen before OR after FI
 	fi::BPEvent func_finish(OOSTUBS_FUNC_FINISH);
 	sal::simulator.addEvent(&func_finish);