i recently upgraded from 4.0.12 to 4.0.14 an started getting thos panics in my log. Does anyone may have an idea whats going on? Any advise in further investigations?

Feb 12 11:36:12 mercury smbd[6736]: [2014/02/12 11:36:12.326922,  0, pid=6736, effective(3000028, 20), real(0, 0)] ../lib/util/fault.c:72(fault_report)
Feb 12 11:36:12 mercury smbd[6736]:   ===============================================================
Feb 12 11:36:12 mercury smbd[6736]: [2014/02/12 11:36:12.327016,  0, pid=6736, effective(3000028, 20), real(0, 0)] ../lib/util/fault.c:73(fault_report)
Feb 12 11:36:12 mercury smbd[6736]:   INTERNAL ERROR: Signal 11 in pid 6736 (4.0.14)
Feb 12 11:36:12 mercury smbd[6736]:   Please read the Trouble-Shooting section of the Samba HOWTO
Feb 12 11:36:12 mercury smbd[6736]: [2014/02/12 11:36:12.327063,  0, pid=6736, effective(3000028, 20), real(0, 0)] ../lib/util/fault.c:75(fault_report)
Feb 12 11:36:12 mercury smbd[6736]:   ===============================================================
Feb 12 11:36:12 mercury smbd[6736]: [2014/02/12 11:36:12.327109,  0, pid=6736, effective(3000028, 20), real(0, 0)] ../source3/lib/util.c:810(smb_panic_s3)
Feb 12 11:36:12 mercury smbd[6736]:   PANIC (pid 6736): internal error
Feb 12 11:36:12 mercury smbd[6736]: [2014/02/12 11:36:12.327649,  0, pid=6736, effective(3000028, 20), real(0, 0)] ../source3/lib/util.c:921(log_stack_trace)
Feb 12 11:36:12 mercury smbd[6736]:   BACKTRACE: 25 stack frames:
Feb 12 11:36:12 mercury smbd[6736]:    #0 0x82945ecd <smb_panic_s3+45> at /usr/local/lib/libsmbconf.so.0
Feb 12 11:36:12 mercury smbd[6736]:    #1 0x81462a3c <smb_panic+44> at /usr/local/lib/libsamba-util.so.0
Feb 12 11:36:12 mercury smbd[6736]:    #2 0x81462c51 <smb_panic+577> at /usr/local/lib/libsamba-util.so.0
Feb 12 11:36:12 mercury smbd[6736]:    #3 0x83f8e349 <pthread_sigmask+889> at /lib/libthr.so.3
Feb 12 11:36:12 mercury smbd[6736]:    #4 0x83f8e579 <pthread_sigmask+1449> at /lib/libthr.so.3
Feb 12 11:36:12 mercury smbd[6736]:    #5 0x7ffffffff003
Feb 12 11:36:12 mercury smbd[6736]:    #6 0x81727854 <file_free+196> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #7 0x8177978a <smbd_check_access_rights+6202> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #8 0x8177cbb1 <create_file_default+417> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #9 0x81852e63 <vfs_default_init+10467> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #10 0x81782bb0 <smb_vfs_call_create_file+128> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #11 0x817b2d27 <smbd_smb2_request_process_create+4055> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #12 0x817ab2cd <smbd_smb2_request_dispatch+3133> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #13 0x817abf56 <smbd_smb2_request_dispatch+6342> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #14 0x817ac1b6 <smbd_smb2_request_dispatch+6950> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]:    #15 0x8295a6f8 <run_events_poll+632> at /usr/local/lib/libsmbconf.so.0
Feb 12 11:36:12 mercury smbd[6736]:    #16 0x8295ab31 <event_add_to_poll_args+929> at /usr/local/lib/libsmbconf.so.0
Feb 12 11:36:12 mercury smbd[6736]:    #17 0x841a8d41 <_tevent_loop_once+145> at /usr/local/lib/libtevent.so.0
Feb 12 11:36:12 mercury smbd[6736]:    #18 0x81796c83 <smbd_process+2723> at /usr/local/lib/samba/libsmbd_base.so
Feb 12 11:36:12 mercury smbd[6736]: [2014/02/12 11:36:12.328108,  0, pid=6736, effective(0, 0), real(0, 0)] ../source3/lib/dumpcore.c:317(dump_core)
Feb 12 11:36:12 mercury smbd[6736]:   dumping core in /var/coredumps
Feb 12 11:36:12 mercury smbd[6736]:
Feb 12 11:36:12 mercury kernel: pid 6736 (smbd), uid 0: exited on signal 6