Description of problem:
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When any file operation(create,open,write,delete) is done on the root of volume(distributed) from smb mount point, In the brick log messages it is showing the following errors and logs the message which points that the lookup is happening for parent of root.

snip from log:
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[2014-02-11 11:49:14.251989] E [posix.c:3537:posix_fgetxattr] 0-dis-posix: fgetxattr failed on key system.posix_acl_access (No data available)
[2014-02-11 11:49:14.252007] I [server-rpc-fops.c:869:server_fgetxattr_cbk] 0-dis-server: 11223: FGETXATTR 0 (9ba55abc-ed2a-4cfd-8451-9f052af4e506) (system.posix_acl_access) ==> (No data available)
[2014-02-11 11:49:14.280511] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:49:14.280530] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11269: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:49:19.068972] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:49:19.068994] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11467: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:50:43.218278] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:50:43.218312] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11653: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:50:43.287549] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:50:43.287568] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11715: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:50:43.393521] E [posix.c:3537:posix_fgetxattr] 0-dis-posix: fgetxattr failed on key system.posix_acl_access (No data available)
[2014-02-11 11:50:43.393540] I [server-rpc-fops.c:869:server_fgetxattr_cbk] 0-dis-server: 11820: FGETXATTR 7 (f1e7ed2b-35dc-4a83-922f-d34e4d5682ef) (system.posix_acl_access) ==> (No data available)
[2014-02-11 11:50:43.468833] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:50:43.468852] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11903: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:50:49.803079] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:50:49.803100] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 12052: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data availabl

Version-Release number of selected component (if applicable):
glusterfs-3.4.0.59rhs-1.el6rhs.x86_64
samba-glusterfs-3.6.9-167.10.el6rhs.x86_64

How reproducible:
Log messages are seen for every file op.

Steps to Reproduce:
1.Create a distributed volume.
2.Mount on windows client via smb.
3.Do file operations like create.open,write ,delete a file.
4.Check the brick logs: 

Actual results:
In brick logs  : following errors are seen:which points that the lookup is going for parent of root directory.
[2014-02-11 11:50:43.218278] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:50:43.218312] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11653: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:50:43.287549] E [posix.c:199:posix_lookup] 0-dis-posix: buf->ia_gfid is null for /rhs/brick1/dis/b1/..
[2014-02-11 11:50:43.287568] I [server-rpc-fops.c:149:server_lookup_cbk] 0-dis-server: 11715: LOOKUP /.. (00000000-0000-0000-0000-000000000001/..) ==> (No data available)
[2014-02-11 11:50:43.393521] E [posix.c:3537:posix_fgetxattr] 0-dis-posix: fgetxattr failed on key system.posix_acl_access (No data available)


Expected results:
No such errors should be there.

Additional info: