diff --git a/sys/kern/kern_ctf.c b/sys/kern/kern_ctf.c
index b525c274f9e0..1087406ff82e 100644
--- a/sys/kern/kern_ctf.c
+++ b/sys/kern/kern_ctf.c
@@ -144,9 +144,12 @@ link_elf_ctf_get(linker_file_t lf, linker_ctf_t *lc)
 	 * .SUNW_ctf section containing the CTF data.
 	 */
 	if (hdr->e_shstrndx == 0 || shdr[hdr->e_shstrndx].sh_type != SHT_STRTAB) {
-		printf("%s(%d): module %s e_shstrndx is %d, sh_type is %d\n",
-		    __func__, __LINE__, lf->pathname, hdr->e_shstrndx,
-		    shdr[hdr->e_shstrndx].sh_type);
+		if (bootverbose) {
+			printf(
+			    "%s(%d): module %s e_shstrndx is %d, sh_type is %d\n",
+			    __func__, __LINE__, lf->pathname, hdr->e_shstrndx,
+			    shdr[hdr->e_shstrndx].sh_type);
+		}
 		error = EFTYPE;
 		goto out;
 	}
@@ -167,8 +170,10 @@ link_elf_ctf_get(linker_file_t lf, linker_ctf_t *lc)
 
 	/* Check if the CTF section wasn't found. */
 	if (i >= hdr->e_shnum) {
-		printf("%s(%d): module %s has no .SUNW_ctf section\n",
-		    __func__, __LINE__, lf->pathname);
+		if (bootverbose) {
+			printf("%s(%d): module %s has no .SUNW_ctf section\n",
+			    __func__, __LINE__, lf->pathname);
+		}
 		error = EFTYPE;
 		goto out;
 	}
@@ -181,17 +186,21 @@ link_elf_ctf_get(linker_file_t lf, linker_ctf_t *lc)
 
 	/* Check the CTF magic number. */
 	if (cth.cth_magic != CTF_MAGIC) {
-		printf("%s(%d): module %s has invalid format\n",
-		    __func__, __LINE__, lf->pathname);
+		if (bootverbose) {
+			printf("%s(%d): module %s has invalid format\n",
+			    __func__, __LINE__, lf->pathname);
+		}
 		error = EFTYPE;
 		goto out;
 	}
 
 	if (cth.cth_version != CTF_VERSION_2 &&
 	    cth.cth_version != CTF_VERSION_3) {
-		printf(
-		    "%s(%d): module %s CTF format has unsupported version %d\n",
-		    __func__, __LINE__, lf->pathname, cth.cth_version);
+		if (bootverbose) {
+			printf(
+			    "%s(%d): module %s CTF format has unsupported version %d\n",
+			    __func__, __LINE__, lf->pathname, cth.cth_version);
+		}
 		error = EFTYPE;
 		goto out;
 	}
@@ -250,8 +259,10 @@ link_elf_ctf_get(linker_file_t lf, linker_ctf_t *lc)
 		ret = uncompress(ctftab + sizeof(cth), &destlen,
 		    raw + sizeof(cth), shdr[i].sh_size - sizeof(cth));
 		if (ret != Z_OK) {
-			printf("%s(%d): zlib uncompress returned %d\n",
-			    __func__, __LINE__, ret);
+			if (bootverbose) {
+				printf("%s(%d): zlib uncompress returned %d\n",
+				    __func__, __LINE__, ret);
+			}
 			error = EIO;
 			goto out;
 		}