diff --git a/.gitlab/test_cpp.sh b/.gitlab/test_cpp.sh
index 1cdd4d44ba..a093182a2d 100755
--- a/.gitlab/test_cpp.sh
+++ b/.gitlab/test_cpp.sh
@@ -40,6 +40,7 @@ echo "==== Show system info ===="
 env
 nvidia-smi topo -m || true
 ibv_devinfo || true
+uname -a || true
 
 echo "==== Running C++ tests ===="
 cd ${INSTALL_DIR}
diff --git a/src/plugins/posix/posix_backend.cpp b/src/plugins/posix/posix_backend.cpp
index 9a231cd44a..6181597de2 100644
--- a/src/plugins/posix/posix_backend.cpp
+++ b/src/plugins/posix/posix_backend.cpp
@@ -67,8 +67,9 @@ uringQueue::uringQueue(int num_entries, io_uring_params params)
     memset(&uring, 0, sizeof(uring));
 
     int uring_init_status = io_uring_queue_init_params(num_entries, &uring, &params);
-    if (uring_init_status != 0)
-        throw UringError::INIT;
+    if (uring_init_status != 0) {
+        throw std::runtime_error(absl::StrFormat("Failed to init io_uring - errno: %d", errno));
+    }
 }
 
 uringQueue::~uringQueue() {
@@ -156,7 +157,7 @@ nixlPosixBackendReqH::nixlPosixBackendReqH(const nixl_xfer_op_t &operation,
                          reinterpret_cast<io_uring_prep_func_t>(io_uring_prep_write)),
       is_prepped(false), status(NIXL_IN_PROG) {
     if (operation != NIXL_READ && operation != NIXL_WRITE) {
-        throw OperationError::INVALID_OPERATION;
+        throw std::invalid_argument(absl::StrFormat("Invalid operation type: %d", operation));
     }
 
     fillUringParams();
@@ -247,10 +248,10 @@ nixl_status_t nixlPosixEngine::prepXfer(const nixl_xfer_op_t &operation,
         NIXL_RETURN_IF_NOT_IN_PROG(status);
 
         handle = posix_handle.release();
-    } catch (nixlPosixBackendReqH::OperationError error) {
-        NIXL_LOG_AND_RETURN_IF_ERROR(NIXL_ERR_INVALID_PARAM, "Invalid operation type");
-    } catch (const uringQueue::UringError& e) {
-        NIXL_LOG_AND_RETURN_IF_ERROR(NIXL_ERR_BACKEND, "Failed to init io_uring");
+    } catch (const std::invalid_argument& e) {
+        NIXL_LOG_AND_RETURN_IF_ERROR(NIXL_ERR_INVALID_PARAM, e.what());
+    } catch (const std::runtime_error& e) {
+        NIXL_LOG_AND_RETURN_IF_ERROR(NIXL_ERR_BACKEND, e.what());
     } catch (const std::exception& e) {
         NIXL_LOG_AND_RETURN_IF_ERROR(NIXL_ERR_BACKEND, absl::StrFormat("Unexpected error: %s", e.what()));
     }
diff --git a/src/plugins/posix/posix_backend.h b/src/plugins/posix/posix_backend.h
index 1b928abc15..9c91746646 100644
--- a/src/plugins/posix/posix_backend.h
+++ b/src/plugins/posix/posix_backend.h
@@ -42,10 +42,6 @@ class uringQueue {
         nixl_status_t submit();
         nixl_status_t checkCompleted();
         struct io_uring_sqe *getSqe();
-
-        enum class UringError {
-            INIT,
-        };
 };
 
 class nixlPosixBackendReqH : public nixlBackendReqH {
@@ -79,10 +75,6 @@ class nixlPosixBackendReqH : public nixlBackendReqH {
         nixl_status_t postXfer();
         nixl_status_t prepXfer();
         nixl_status_t checkXfer();
-
-        enum class OperationError {
-            INVALID_OPERATION
-        };
 };
 
 class nixlPosixEngine : public nixlBackendEngine {