-#define IS_KVA01(a) ((((unsigned int)a) & 0xc0000000) == 0x80000000)
- if (IS_KVA01(sp)) {
- while (!kstack_end(sp)) {
- addr = *sp++;
- if (__kernel_text_address(addr))
- print_ip_sym(addr);
+ while (!kstack_end(sp)) {
+ unsigned long __user *p =
+ (unsigned long __user *)(unsigned long)sp++;
+ if (__get_user(addr, p)) {
+ printk(" (Bad stack address)");
+ break;