diff --git a/src/binfmt_rto/binfmt_rto.c b/src/binfmt_rto/binfmt_rto.c
index e91c0c5ef5b9b51ae09369ac6d50a531195fa8f2..ff3826181874bd95f3216ff2569b71988b5bdd84 100644
--- a/src/binfmt_rto/binfmt_rto.c
+++ b/src/binfmt_rto/binfmt_rto.c
@@ -68,6 +68,11 @@
 #define MM_SAVED_AUXV(mm) mm->saved_auxv
 #endif
 
+/* x86, 22.03 LTS map_vdso is undefine  */
+#ifndef map_vdso
+extern int map_vdso(const struct vdso_image *image, unsigned long addr);
+#endif
+
 #define proc_symbol(SYM)	typeof(SYM) *(SYM)
 static struct global_symbols {
 #ifdef CONFIG_ARM64
@@ -1389,7 +1394,7 @@ out_free_interp:
 	for(i = 0, elf_ppnt = elf_phdata;
 	    i < elf_ex->e_phnum; i++, elf_ppnt++) {
 		int elf_prot, elf_flags;
-		unsigned long k, vaddr, size, off;
+		unsigned long k, vaddr;
 		unsigned long total_size = 0;
 		unsigned long alignment;
 
diff --git a/src/binfmt_rto/rto_populate.c b/src/binfmt_rto/rto_populate.c
index 19f45b4aa208e092afd38961130bb5b284d51032..45ac1391ea992036189ebbf8703417dede261198 100644
--- a/src/binfmt_rto/rto_populate.c
+++ b/src/binfmt_rto/rto_populate.c
@@ -33,7 +33,9 @@
 #include <linux/page_owner.h>
 #include <linux/dynamic_hugetlb.h>
 
+#ifdef CONFIG_ARM64
 #include <asm/tlb.h>
+#endif
 #include <asm/pgalloc.h>
 
 #include "main.h"
@@ -56,7 +58,10 @@ static struct global_symbols {
 	proc_symbol(__pud_alloc);
 	proc_symbol(__anon_vma_prepare);
 	proc_symbol(__pmd_alloc);
-	
+#ifdef CONFIG_X86
+	proc_symbol(__p4d_alloc);
+	proc_symbol(pud_clear_bad);
+#endif
 } ppl_sym;
 
 #define proc_symbol_char(x) #x
@@ -66,8 +71,47 @@ static char *global_symbol_names[] = {
 	proc_symbol_char(__pud_alloc),
 	proc_symbol_char(__anon_vma_prepare),
 	proc_symbol_char(__pmd_alloc),
+#ifdef CONFIG_X86
+	proc_symbol_char(__p4d_alloc),
+	proc_symbol_char(pud_clear_bad),
+#endif
 };
 
+#ifdef CONFIG_X86
+// p4d_alloc -> __p4d_alloc
+#define p4d_alloc rto_p4d_alloc
+static inline p4d_t *rto_p4d_alloc(struct mm_struct *mm, pgd_t *pgd,
+		unsigned long address)
+{
+	return (unlikely(pgd_none(*pgd)) && ppl_sym.__p4d_alloc(mm, pgd, address)) ?
+		NULL : p4d_offset(pgd, address);
+}
+
+// pud_trans_unstable()
+//     pud_none_or_trans_huge_or_dev_or_clear_bad()
+//         pud_clear_bad()
+#define pud_trans_unstable rto_pud_trans_unstable
+
+static inline int rto_pud_none_or_trans_huge_or_dev_or_clear_bad(pud_t *pud)
+{
+	pud_t pudval = READ_ONCE(*pud);
+
+	if (pud_none(pudval) || pud_trans_huge(pudval) || pud_devmap(pudval))
+		return 1;
+	if (unlikely(pud_bad(pudval))) {
+		ppl_sym.pud_clear_bad(pud);
+		return 1;
+	}
+	return 0;
+}
+
+static inline int rto_pud_trans_unstable(pud_t *pud)
+{
+	return rto_pud_none_or_trans_huge_or_dev_or_clear_bad(pud);
+}
+
+#endif
+
 static int init_symbols(void)
 {
 	int ret;