diff --git a/repos/hello_gpgpu/src/hello_gpgpu/main.cc b/repos/hello_gpgpu/src/hello_gpgpu/main.cc
index 342bdcf357..0ccc916016 100644
--- a/repos/hello_gpgpu/src/hello_gpgpu/main.cc
+++ b/repos/hello_gpgpu/src/hello_gpgpu/main.cc
@@ -65,7 +65,7 @@ void testvm_construct(Genode::Env &env)
 		ns_syrk::main(0, 0);
 
 		Genode::log("===Run gramschmidt===");
-		ns_gramschmidt::main(0, 0);
+		ns_gramschmidt::main(0, 0); // CPU and GPU produce nan output (official linux version also has nan output)
 		Genode::log("===Run lu===");
 		ns_lu::main(0, 0); // Non-Matching CPU-GPU Outputs Beyond Error Threshold of 0.05 Percent: 127