Just to let anyone know, it still happens in 12.04:
Sep 20 14:29:21 ubuntu64 kernel: [84118.210121] nscd[17964]: segfault at 0 ip 00007f6d44ef2b91 sp 00007f6d3d9515e8 error 4 in libc-2.15.so[7f6d44e6a000+1b3000]
Just to let anyone know, it still happens in 12.04:
Sep 20 14:29:21 ubuntu64 kernel: [84118.210121] nscd[17964]: segfault at 0 ip 00007f6d44ef2b91 sp 00007f6d3d9515e8 error 4 in libc-2. 15.so[7f6d44e6a 000+1b3000]