I see that you already have "allow_weak_crypto = true". If the NFS server is Linux, debug output from rpc.svcgssd there might help. If you are only changing the client (and not the server) then a packet trace would be helpful. On Sat, Apr 17, 2010 at 3:54 AM, Di Pe <dipeit@xxxxxxxxx> wrote: > Hi, > > this looks like an issue with kerberos, but not 100% sure: > > ############## > > > I have a working configuration for Kerberized NFSv4 using Active > Directory 2003 functional level using > Kernel 2.6.27 with krb5 1.6.3 and gssd 1.1.3. openSUSE 11.1 When I > switch to openSUSE 11.2 (Kernel 2.6.31, krb5 1.70, gssd 1.1.3) > rpc.gssd -fvvvvv shows this error message (Failed to create machine > krb5 context) and gives me more errros like "gss_create_upcall for uid > 0 result -13" when I turn on rpc/nfs debugging using 'echo "65535" > > /proc/sys/sunrpc/rpc[nfs]_debug' > > handling krb5 upcall > Full hostname for 'COMPUTRON.MYDOMAIN.ORG' is 'computron.mydomain.org' > Full hostname for 'phsgrid-03.fhcrc.org' is 'phsgrid-03.mydomain.org' > Key table entry not found while getting keytab entry for > 'root/phsgrid-03.mydomain.org@xxxxxxxxxxxx' > Success getting keytab entry for 'nfs/phsgrid-03.mydomain.org@xxxxxxxxxxxx' > Successfully obtained machine credentials for principal > 'nfs/phsgrid-03.mydomain.org@xxxxxxxxxxxx' stored in ccache > 'FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG' > INFO: Credentials in CC 'FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG' are > good until 1271522236 > using FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG as credentials cache for > machine creds > using environment variable to select krb5 ccache > FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG > creating context using fsuid 0 (save_uid 0) > creating tcp client for server COMPUTRON.MYDOMAIN.ORG > DEBUG: port already set to 2049 > creating context with server nfs@xxxxxxxxxxxxxxxxxxxxxx > WARNING: Failed to create krb5 context for user with uid 0 for server > COMPUTRON.MYDOMAIN.ORG > WARNING: Failed to create machine krb5 context with credentials cache > FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG for server > COMPUTRON.MYDOMAIN.ORG > WARNING: Failed to create machine krb5 context with any credentials > cache for server COMPUTRON.MYDOMAIN.ORG > doing error downcall > > > now when replace krb5-1.7 with krb5-1.6.3 on openSUSE 11.2 everything > works again: > > handling krb5 upcall > Full hostname for 'computron.mydomain.org' is 'computron.mydomain.org' > Full hostname for 'panther5.mydomain.org' is 'panther5.mydomain.org' > Key table entry not found while getting keytab entry for > 'root/panther5.mydomain.org@xxxxxxxxxxxx' > Success getting keytab entry for 'nfs/panther5.mydomain.org@xxxxxxxxxxxx' > INFO: Credentials in CC 'FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG' are > good until 1271518766 > INFO: Credentials in CC 'FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG' are > good until 1271518766 > using FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG as credentials cache for > machine creds > using environment variable to select krb5 ccache > FILE:/tmp/krb5cc_machine_MYDOMAIN.ORG > creating context using fsuid 0 (save_uid 0) > creating tcp client for server computron.mydomain.org > creating context with server nfs@xxxxxxxxxxxxxxxxxxxxxx > DEBUG: serialize_krb5_ctx: lucid version! > prepare_krb5_rfc1964_buffer: serializing keys with enctype 4 and length 8 > doing downcall > > > going to openSUSE11.3 (Kernel 2.6.34-rc3, gssd 1.2.1, krb5 1.8) does > not help either. executing > mount -t nfs4 -o rsize=65536,wsize=65536,sec=krb5 computron:/tmp_iscsi tmp_iscsi > gives me the very some error message > > after that I tried to install the rpm package of krb5 1.8.1 and also > 1.8.1 straight from source. I am always getting the same error message > "Failed to create krb5 context" > >> cat /etc/krb5.conf > [libdefaults] > default_realm = FHCRC.ORG > clockskew = 300 > allow_weak_crypto = true > default_tkt_enctypes = des-cbc-crc > default_tgs_enctypes = des-cbc-crc > #default_tkt_enctypes = des-cbc-md5 > #default_tgs_enctypes = des-cbc-md5 > #default_tkt_enctypes = rc4-hmac > #default_tgs_enctypes = rc4-hmac > #kdc_req_checksum_type = -138 > #ap_req_checksum_type = -138 > #safe_checksum_type = -138 > #ccache_type = 3 > #pkinit_eku_checking = kpServerAuth > >>cat idmapd.conf > [General] > Verbosity = 0 > Pipefs-Directory = /var/lib/nfs/rpc_pipefs > Domain = mydomain.org > Local-Realm = MYDOMAIN.ORG > >> klist -k -e -t > Keytab name: WRFILE:/etc/krb5.keytab > KVNO Timestamp Principal > ---- ----------------- -------------------------------------------------------- > 3 12/31/69 16:00:00 nfs/phsgrid-03.mydomain.org@xxxxxxxxxxxx (DES > cbc mode with CRC-32) > > > Thanks for your help > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
