LDBG
LDBG(curlun, "error in file verify: %d\n", (int)nread);
LDBG(curlun, "partial file verify: %d/%u\n",
LDBG(curlun, "unload attempt prevented\n");
LDBG(curlun, "error in file read: %d\n", (int)nread);
LDBG(curlun, "partial file read: %d/%u\n",
LDBG(curlun, "error in file write: %d\n",
LDBG(curlun, "partial file write: %d/%u\n",
LDBG(curlun, "close backing file\n");
LDBG(curlun, "open backing file: %s\n", filename);
LDBG(curlun, "read-only status change prevented\n");
LDBG(curlun, "read-only status set to %d\n", curlun->ro);
LDBG(curlun, "eject attempt prevented\n");
#define VLDBG LDBG