diff --git a/drivers/nvme/nvme.asm b/drivers/nvme/nvme.asm
index c0c52a2..8bc9709 100644
--- a/drivers/nvme/nvme.asm
+++ b/drivers/nvme/nvme.asm
@@ -1306,6 +1306,7 @@ proc nvme_cleanup
 
 ; Wait for shutdown processing to complete
 @@:
+	DEBUGF  DBG_INFO, "nvme: CSTS = 0x%x\n", [edi + NVME_MMIO.CSTS]
 	test 	byte [edi + NVME_MMIO.CSTS], CSTS_SHST_SHUTDOWN_COMPLETE
 	jnz 	@b