Re: sysenter cause a segmentation fault.

"Ying Chu" <[EMAIL PROTECTED]> writes: > A simple code running on PIII 800,kernel 2.6.20 with SEP enabled > causes a segmentation fault. SYSENTER has a hardcoded return address, that is why you cannot be used anywhere but in the vsyscall trampoline. In addition it doesn't work on x86-64 for 32

sysenter cause a segmentation fault.

A simple code running on PIII 800,kernel 2.6.20 with SEP enabled causes a segmentation fault. The slice is as following. #include #include int main() { unsigned long ret=0; __asm__ __volatile__ ("movl %1,%%eax\n\tpushl %%ecx\n\t" "pushl %%edx\n\tpush %%ebp\n\t" "movl %%esp,%%eb