undefined symbol: g_date_time_unref

upgrade debian kernel to 4.4.133.

when stop/restart services, met the following error:

service webmin restart
/usr/bin/pkttyagent: symbol lookup error: /usr/lib/arm-linux-gnueabi/ undefined symbol: g_date_time_unref
Failed to restart webmin.service: Connection timed out
See system logs and ‘systemctl status webmin.service’ for details.

The problem is that your distribution has put a copy of glib in /lib for low-level services to use but when you installed the newer version of glib it only copied the library to /usr/lib. Hence the problem with incompatible bits of glib.

/lib$ ls libglib*
yong@Debian:/lib$ ll
lrwxrwxrwx 1 root root 23 Oct 24 2011 ->
/usr/lib/arm-linux-gnueabi$ ll
lrwxrwxrwx 1 root root 23 Feb 7 00:28 ->

remove the old one in /lib will fix the issue.


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