diff --git a/nemu/src/monitor/elf.c b/nemu/src/monitor/elf.c
index d05daa3..57952e7 100644
--- a/nemu/src/monitor/elf.c
+++ b/nemu/src/monitor/elf.c
@@ -80,18 +80,18 @@ void init_elf(const char* elf_file) {
   size_t symt_len = 0, strt_sz = 0;
   for (int i = 0; i < ehdr.e_shnum; i++) {
     if (shdr[i].sh_type == SHT_SYMTAB) {
-      fseek(fp, shdr[i].sh_offset, SEEK_SET);
       assert(shdr[i].sh_size % sizeof(Elf_Sym) == 0);
       symt_len = shdr[i].sh_size / shdr[i].sh_entsize;
       Elf_Sym sym[symt_len];
+      fseek(fp, shdr[i].sh_offset, SEEK_SET);
       ret = fread(sym, shdr[i].sh_size, 1, fp);
       assert(ret == 1);
       psymt = sym;
-      Log("SYMTAB %08x %06x %06x", shdr[i].sh_addr, shdr[i].sh_offset, shdr[i].sh_size);
+      Log("SYMTAB %ld, %08x %06x %06x", symt_len, shdr[i].sh_addr, shdr[i].sh_offset, shdr[i].sh_size);
     } else if (shdr[i].sh_type == SHT_STRTAB && i != ehdr.e_shstrndx) {
       strt_sz = shdr[i].sh_size;
-      fseek(fp, shdr[i].sh_offset, SEEK_SET);
       char buffer[strt_sz];
+      fseek(fp, shdr[i].sh_offset, SEEK_SET);
       ret = fread(buffer, strt_sz, 1, fp);
       assert(ret == 1);
       pstrt = buffer;