(kerberos) LoginException: Checksum failed

[armino]

Hi there,

my environment:
Linux64 (OpenSuse 12.1), alfresco 4d fresh install, change set for kerberos+ms ad applied as in here:
http://docs.alfresco.com/4.0/index.jsp?topic=%2Fcom.alfresco.enterprise.doc%2Ftasks%2Fauth-kerberos-...

repository.properties
authentication.chain=kerberos1:kerberos

kerberos auth is working fine:
alchemy:/opt/alfresco-4.0.d # kinit -V -k -t /etc/alfrescocifs.keytab "cifs/alchemy.lev.foo.com"
Using default cache: /tmp/krb5cc_0
Using principal: cifs/alchemy.lev.foo.com@LEV.FOO.COM
Using keytab: /etc/alfrescocifs.keytab
Authenticated to Kerberos v5

cifs not so:
2012-07-11 17:03:16,698  ERROR [smb.protocol.auth] [main] CIFS Kerberos authenticator error javax.security.auth.login.LoginException: Checksum failed

here is the log:
http://pastebin.com/hkjiTh1E

-Armin

[armino]

This appears to be an incompatibility bug in jdk1.6 in conjunction with Kerberos based on Active Directory/Windows2008R2.
When i run the same alfresco instance with JDK7 (1.7.0_05) kerberos auth is working fine. Switching back to 1.6.0_22 or 1.6.0_33 (from sun) it throws the exception.

-Armin