diff --git a/block/blk-core.c b/block/blk-core.c
index 8b3b74e..7ae83a1 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1789,6 +1789,11 @@
 			break;
 		} else if (ret == BLKPREP_KILL) {
 			rq->cmd_flags |= REQ_QUIET;
+			/*
+			 * Mark this request as started so we don't trigger
+			 * any debug logic in the end I/O path.
+			 */
+			blk_start_request(rq);
 			__blk_end_request_all(rq, -EIO);
 		} else {
 			printk(KERN_ERR "%s: bad return=%d\n", __func__, ret);