backtrace

Program terminated with signal 11, Segmentation fault.
#0  0x00007f59aeb1c45e in __printf_fp () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007f59aeb1c45e in __printf_fp () from /usr/lib/libc.so.6
#1  0x00007f59aeb1b185 in vfprintf () from /usr/lib/libc.so.6
#2  0x00007f59aeb207b9 in printf () from /usr/lib/libc.so.6
#3  0x0000000000400534 in main ()

test.c

#include <stdio.h>
int main() {
    double d = 1.0;
    long double ld;
    printf("%Lf\n", ld);
}