When ldiskfs run in failover mode whith read-only disk.
Part of allocation updates are lost and ldiskfs may fail
while mounting this is due to inconsistent state of
group-descriptor. Group-descriptor check is added after
journal replay.

Index: linux-4.18.0-32.el8.x86_64/fs/ext4/super.c
===================================================================
--- linux-4.18.0-32.el8.x86_64.orig/fs/ext4/super.c
+++ linux-4.18.0-32.el8.x86_64/fs/ext4/super.c
@@ -4092,11 +4092,6 @@ static int ext4_fill_super(struct super_
 		}
 	}
 	sbi->s_gdb_count = db_count;
-	if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
-		ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
-		ret = -EFSCORRUPTED;
-		goto failed_mount2;
-	}
 
 	timer_setup(&sbi->s_err_report, print_daily_error_info, 0);
 
@@ -4238,6 +4233,13 @@ static int ext4_fill_super(struct super_
 	sbi->s_journal->j_commit_callback = ext4_journal_commit_callback;
 
 no_journal:
+
+	if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
+		ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
+		ret = -EFSCORRUPTED;
+		goto failed_mount_wq;
+	}
+
 	if (!test_opt(sb, NO_MBCACHE)) {
 		sbi->s_ea_block_cache = ext4_xattr_create_cache();
 		if (!sbi->s_ea_block_cache) {