[OE-core] root login broken

[Andreas Müller]

Hi,

have built with oe-core

commit 530565c6cb77319f4cc49edeea6fec6be997415d
Author: Dan McGregor <dan.mcgregor at usask.ca>
Date:   Fri Feb 6 11:20:19 2015 -0600

    glibc: Update to glibc 2.21 release tag

    Signed-off-by: Dan McGregor <dan.mcgregor at usask.ca>
    Signed-off-by: Khem Raj <raj.khem at gmail.com>


and can not login serial console or by su in GUI as root. I am asked
for password although that is empty.

Have checked securetty but found nothing suspicious. Anybody else with
similar experience?

Andreas