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-rw-r--r--src/rt/rust_kernel.cpp1
-rw-r--r--src/rt/rust_task.cpp1
2 files changed, 2 insertions, 0 deletions
diff --git a/src/rt/rust_kernel.cpp b/src/rt/rust_kernel.cpp
index 46bed7237c1..367b76a9136 100644
--- a/src/rt/rust_kernel.cpp
+++ b/src/rt/rust_kernel.cpp
@@ -89,6 +89,7 @@ rust_kernel::register_task(rust_task *task) {
         task->user.id = max_task_id++;
         task_table.put(task->user.id, task);
     }
+    K(srv, task->user.id != INTPTR_MAX, "Hit the maximum task id");
     KLOG_("Registered task %" PRIdPTR, task->user.id);
     int new_live_tasks = sync::increment(live_tasks);
     KLOG_("Total outstanding tasks: %d", new_live_tasks);
diff --git a/src/rt/rust_task.cpp b/src/rt/rust_task.cpp
index 1563fe63516..136b00e1f56 100644
--- a/src/rt/rust_task.cpp
+++ b/src/rt/rust_task.cpp
@@ -628,6 +628,7 @@ rust_port_id rust_task::register_port(rust_port *port) {
     scoped_lock with(lock);
 
     rust_port_id id = next_port_id++;
+    A(thread, id != INTPTR_MAX, "Hit the maximum port id");
     port_table.put(id, port);
     return id;
 }