[rocprofiler-compute] Handle amd-smi rocm==6.4.2 json output issue. (#667)

projects/rocprofiler-compute/src/utils/specs.py

@@ -171,9 +171,13 @@ def generate_machine_specs(args, sysinfo: dict = None):
     vbios = gpu_data.get("vbios", {}).get("part_number")
 
     # Load amd-smi partition data for GPU 0 (amd-smi >= 26.0.0)
-    partition_data = json.loads(
-        run(["amd-smi", "partition", "--gpu=0", "--json"], exit_on_error=False)
-    )
+    try:
+        partition_data = json.loads(
+            run(["amd-smi", "partition", "--gpu=0", "--json"], exit_on_error=False)
+        )
+    except json.JSONDecodeError:
+        partition_data = {}
+
     current_partition = partition_data.get("current_partition", [{}])[0]
 
     # Extract partition values with gpu_data fallback (amd-smi < 26.0.0)