diff --git a/zion/lib/shared_ptr.h b/zion/lib/shared_ptr.h
index 8c26a31..3c7b12a 100644
--- a/zion/lib/shared_ptr.h
+++ b/zion/lib/shared_ptr.h
@@ -70,7 +70,6 @@ class SharedPtr {
       return;
     }
     if (--(*ref_cnt_) == 0) {
-      dbgln("Deleting shared ptr: %m", ptr_);
       delete ptr_;
       delete ref_cnt_;
     }
diff --git a/zion/object/port.cpp b/zion/object/port.cpp
index e649bca..22a0dda 100644
--- a/zion/object/port.cpp
+++ b/zion/object/port.cpp
@@ -9,7 +9,6 @@ z_err_t Port::Write(const ZMessage& msg) {
     dbgln("Large message size unimplemented: %x", msg.num_bytes);
     return Z_ERR_INVALID;
   }
-  dbgln("port write");
 
   auto message = MakeShared<Message>();
   message->type = msg.type, message->num_bytes = msg.num_bytes;
@@ -37,7 +36,6 @@ z_err_t Port::Write(const ZMessage& msg) {
 }
 
 z_err_t Port::Read(ZMessage& msg) {
-  dbgln("port read");
   mutex_.Lock();
   while (pending_messages_.size() < 1) {
     blocked_threads_.PushBack(gScheduler->CurrentThread());
diff --git a/zion/syscall/syscall.cpp b/zion/syscall/syscall.cpp
index bec3f2b..7a651f7 100644
--- a/zion/syscall/syscall.cpp
+++ b/zion/syscall/syscall.cpp
@@ -123,7 +123,7 @@ z_err_t AddressSpaceMap(ZAddressSpaceMapReq* req, ZAddressSpaceMapResp* resp) {
   auto vmmo = vmmo_cap->obj<MemoryObject>();
   RET_IF_NULL(vmas);
   RET_IF_NULL(vmmo);
-  dbgln("Ptr %x, %x", vmas.get(), vmmo.get());
+
   // FIXME: Validation necessary.
   if (req->vmas_offset != 0) {
     vmas->MapInMemoryObject(req->vmas_offset, vmmo);