srv0start.c, trx0sys.c:

  Let InnoDB to skip writing of pages from the doublewrite buffer if innodb_force_recovery=6; normally, if the page is corrupt AND the corresponding page in the doublewrite buffer is also corrupt, InnoDB calls exit(1)


innobase/trx/trx0sys.c:
  Let InnoDB to skip writing of pages from the doublewrite buffer if innodb_force_recovery=6; normally, if the page is corrupt AND the corresponding page in the doublewrite buffer is also corrupt, InnoDB calls exit(1)
innobase/srv/srv0start.c:
  Let InnoDB to skip writing of pages from the doublewrite buffer if innodb_force_recovery=6; normally, if the page is corrupt AND the corresponding page in the doublewrite buffer is also corrupt, InnoDB calls exit(1)

innobase/srv/srv0start.c

@@ -1168,8 +1168,11 @@ innobase_start_or_create_for_mysql(void)
 		and restore them from the doublewrite buffer if
 		possible */
 		
+		if (srv_force_recovery < SRV_FORCE_NO_LOG_REDO) {
+		
 			trx_sys_doublewrite_restore_corrupt_pages();
 		}
+	}
 
 	srv_normalize_path_for_win(srv_arch_dir);
 	srv_arch_dir = srv_add_path_separator_if_needed(srv_arch_dir);

innobase/trx/trx0sys.c

@@ -340,7 +340,6 @@ trx_sys_doublewrite_restore_corrupt_pages(void)
 
 			/* It is an unwritten doublewrite buffer page:
 			do nothing */
-
 		} else {
 			/* Read in the actual page from the data files */
 			
@@ -357,9 +356,19 @@ trx_sys_doublewrite_restore_corrupt_pages(void)
 		"InnoDB: Trying to recover it from the doublewrite buffer.\n");
 				
 				if (buf_page_is_corrupted(page)) {
+					fprintf(stderr,
+		"InnoDB: Dump of the page:\n");
+					buf_page_print(read_buf);
+					fprintf(stderr,
+		"InnoDB: Dump of corresponding page in doublewrite buffer:\n");
+					buf_page_print(page);
+
 		  			fprintf(stderr,
 		"InnoDB: Also the page in the doublewrite buffer is corrupt.\n"
-		"InnoDB: Cannot continue operation.\n");
+		"InnoDB: Cannot continue operation.\n"
+		"InnoDB: You can try to recover the database with the my.cnf\n"
+		"InnoDB: option:\n"
+		"InnoDB: set-variable=innodb_force_recovery=6\n");
 					exit(1);
 				}