Couchbase Node is down

Hello,

i am using couchbase since 3 months ago and after i make a restart to my Centos server the node can not be up. I am getting the follwoing error message

error Port server memcached on node ‘babysitter_of_ns_1@127.0.0.1’ exited with status 139

and in the log:

[ns_server:info,2014-06-21T18:28:28.245,babysitter_of_ns_1@127.0.0.1:<0.376.0>:supervisor_cushion:handle_info:58]Cushion managed supervisor for memcached failed: {abnormal,139}
[ns_server:info,2014-06-21T18:28:28.245,babysitter_of_ns_1@127.0.0.1:<0.376.0>:supervisor_cushion:die_slowly:80]Service memcached exited on node ‘babysitter_of_ns_1@127.0.0.1’ in 0.13s

[error_logger:error,2014-06-21T18:28:28.245,babysitter_of_ns_1@127.0.0.1:error_logger<0.6.0>:ale_error_logger_handler:log_msg:76]** Generic server <0.377.0> terminating
** Last message in was {#Port<0.3173>,{exit_status,139}}
** When Server state == {state,#Port<0.3173>,memcached,
{[empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty,
empty,empty,empty,empty,empty,empty,empty],
[empty,empty]},
undefined,[],0,true}
** Reason for termination ==
** {abnormal,139}

[error_logger:error,2014-06-21T18:28:28.246,babysitter_of_ns_1@127.0.0.1:error_logger<0.6.0>:ale_error_logger_handler:log_report:72]
=========================CRASH REPORT=========================
crasher:
initial call: ns_port_server:init/1
pid: <0.377.0>
registered_name: []
exception exit: {abnormal,139}
in function gen_server:terminate/6
ancestors: [<0.376.0>,ns_child_ports_sup,ns_babysitter_sup,<0.54.0>]
messages: [{‘EXIT’,#Port<0.3173>,normal}]
links: [<0.376.0>]
dictionary: []
trap_exit: true
status: running
heap_size: 610
stack_size: 24
reductions: 549
neighbours:


memcached logs:

Version : couchbase-server-enterprise_2.2.0_x86_64