diff --git a/adaptive_compress.c b/adaptive_compress.c
index 27ef558..01b8dd3 100644
--- a/adaptive_compress.c
+++ b/adaptive_compress.c
@@ -345,7 +345,13 @@ adapt_decompress(void *src, uint64_t srclen, void *dst,
 		return (bzip2_decompress(src, srclen, dst, dstlen, level, chdr, btype, NULL));
 
 	} else if (cmp_flags == ADAPT_COMPRESS_PPMD) {
-		return (ppmd_decompress(src, srclen, dst, dstlen, level, chdr, btype, adat->ppmd_data));
+		int rv;
+		rv = ppmd_alloc(adat->ppmd_data);
+		if (rv < 0)
+			return (rv);
+		rv = ppmd_decompress(src, srclen, dst, dstlen, level, chdr, btype, adat->ppmd_data);
+		ppmd_free(adat->ppmd_data);
+		return (rv);
 
 	} else if (cmp_flags == ADAPT_COMPRESS_BSC) {
 #ifdef ENABLE_PC_LIBBSC
diff --git a/archive/pc_archive.c b/archive/pc_archive.c
index d118d1d..042e5f3 100644
--- a/archive/pc_archive.c
+++ b/archive/pc_archive.c
@@ -375,6 +375,7 @@ read_next_path(pc_ctx_t *pctx, char *fpath, char **namechars, int *fpathlen)
 	short namelen;
 	ssize_t rbytes;
 	uchar_t *buf;
+	int n;
 
 	if (pctx->enable_archive_sort) {
 		member_entry_t *mem1, *mem2;
@@ -436,7 +437,7 @@ read_next_path(pc_ctx_t *pctx, char *fpath, char **namechars, int *fpathlen)
 	 * new mmap.
 	 */
 	if (pctx->temp_mmap_len > 0) {
-		int retried, n;
+		int retried;
 
 		if (pctx->temp_file_pos < pctx->temp_mmap_pos ||
 		    pctx->temp_file_pos - pctx->temp_mmap_pos > pctx->temp_mmap_len ||
@@ -508,6 +509,13 @@ do_mmap:
 			return (-1);
 		}
 		fpath[namelen] = '\0';
+		*fpathlen = namelen;
+
+		n = namelen-1;
+		while (fpath[n] == '/' && n > 0) n--;
+		while (fpath[n] != '/' && fpath[n] != '\\' && n > 0) n--;
+		*namechars = &fpath[n+1];
+		printf("%s\n", fpath);
 	}
 	return (rbytes);
 }
@@ -788,11 +796,16 @@ setup_archiver(pc_ctx_t *pctx, struct stat *sbuf)
 			   creat_write_callback, creat_close_callback);
 	pctx->archive_ctx = arc;
 	pctx->archive_members_fd = fd;
-	pctx->temp_mmap_len = TEMP_MMAP_SIZE;
-	pctx->temp_mmap_buf = mmap(NULL, pctx->temp_mmap_len, PROT_READ,
-				   MAP_SHARED, pctx->archive_members_fd, 0);
-	if (pctx->temp_mmap_buf == NULL) {
-		log_msg(LOG_WARN, 1, "Unable to mmap pathlist file, switching to read().");
+	if (pctx->enable_archive_sort) {
+		pctx->temp_mmap_len = TEMP_MMAP_SIZE;
+		pctx->temp_mmap_buf = mmap(NULL, pctx->temp_mmap_len, PROT_READ,
+					MAP_SHARED, pctx->archive_members_fd, 0);
+		if (pctx->temp_mmap_buf == NULL) {
+			log_msg(LOG_WARN, 1, "Unable to mmap pathlist file, switching to read().");
+			pctx->temp_mmap_len = 0;
+		}
+	} else {
+		pctx->temp_mmap_buf = NULL;
 		pctx->temp_mmap_len = 0;
 	}
 	pctx->temp_mmap_pos = 0;
@@ -1235,11 +1248,6 @@ extractor_thread_func(void *dat) {
 		got_cwd = 0;
 	}
 
-	if (chdir(pctx->to_filename) == -1) {
-		log_msg(LOG_ERR, 1, "Cannot change to dir: %s", pctx->to_filename);
-		goto done;
-	}
-
 	ctr = 1;
 	awd = archive_write_disk_new();
 	archive_write_disk_set_options(awd, flags);
@@ -1247,6 +1255,15 @@ extractor_thread_func(void *dat) {
 	arc = (struct archive *)(pctx->archive_ctx);
 	archive_read_open(arc, pctx, arc_open_callback, extract_read_callback, extract_close_callback);
 
+	/*
+	 * Change directory after opening the archive, otherwise archive_read_open() can fail
+	 * for relative paths.
+	 */
+	if (chdir(pctx->to_filename) == -1) {
+		log_msg(LOG_ERR, 1, "Cannot change to dir: %s", pctx->to_filename);
+		goto done;
+	}
+
 	/*
 	 * Read archive entries and extract to disk.
 	 */
diff --git a/pcompress.c b/pcompress.c
index 6eed6e3..a53f6b8 100644
--- a/pcompress.c
+++ b/pcompress.c
@@ -834,11 +834,16 @@ start_decompress(pc_ctx_t *pctx, const char *filename, char *to_filename)
 				err = 1;
 				goto uncomp_done;
 			}
-			if (mkdir(to_filename, S_IRUSR|S_IWUSR) == -1) {
+			if (mkdir(to_filename, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) == -1) {
 				log_msg(LOG_ERR, 1, "Unable to create target directory %s.", to_filename);
 				err = 1;
 				goto uncomp_done;
 			}
+			if (stat(to_filename, &sbuf) == -1) {
+				log_msg(LOG_ERR, 1, "Unable to correctly create target directory %s.", to_filename);
+				err = 1;
+				goto uncomp_done;
+			}
 		}
 		if (!S_ISDIR(sbuf.st_mode)) {
 			log_msg(LOG_ERR, 0, "Target path is not a directory.", to_filename);
@@ -3039,7 +3044,7 @@ init_pc_context(pc_ctx_t *pctx, int argc, char *argv[])
 	 * unless it is explicitly disabled via '-n'.
 	 */
 	if (pctx->enable_archive_sort != -1 && pctx->do_compress) {
-		if ((memcmp(pctx->algo, "lz4", 3) == 0 && pctx->level > 2) || pctx->level > 6)
+		if ((memcmp(pctx->algo, "lz4", 3) == 0 && pctx->level > 1) || pctx->level > 4)
 			pctx->enable_archive_sort = 1;
 	} else {
 		pctx->enable_archive_sort = 0;