saw this backtrace from log file. 

signal received: 11
configuration details:argp 1
backtrace 1
dlfcn 1
fdatasync 1
libpthread 1
llistxattr 1
setfsid 1
spinlock 1
epoll.h 1
xattr.h 1
st_atim.tv_nsec 1
package-string: glusterfs 2.0.0
/lib64/libc.so.6[0x3595e30280]
/lib64/libc.so.6(strcmp+0x2)[0x3595e787d2]
/opt/gluster-2.0.0/lib/glusterfs/2.0.0/xlator/protocol/server.so(_validate_volfile_checksum+0x43)[0x2b8fdcc633d3]
/opt/gluster-2.0.0/lib/glusterfs/2.0.0/xlator/protocol/server.so(mop_setvolume+0x765)[0x2b8fdcc66e75]
/opt/gluster-2.0.0/lib/glusterfs/2.0.0/xlator/protocol/server.so(protocol_server_pollin+0x90)[0x2b8fdcc62e60]
/opt/gluster-2.0.0/lib/glusterfs/2.0.0/xlator/protocol/server.so(notify+0xcb)[0x2b8fdcc62f3b]
/opt/gluster-2.0.0/lib/glusterfs/2.0.0/transport/socket.so(socket_event_handler+0xcb)[0x2aaaaaaaf74b]
/opt/gluster-2.0.0/lib/libglusterfs.so.0[0x2b8fdbba4ec5]
/opt/glusterfs/sbin/glusterfs(main+0xa69)[0x403759]
/lib64/libc.so.6(__libc_start_main+0xf4)[0x3595e1d974]
/opt/glusterfs/sbin/glusterfs[0x402319]


no more info available.