cscope failed at "cs add"printing "cs_read_prompt EOF: Interrupted system call"

Question

Environment:

1. Linux Mint 14 MATE amd64 Desktop (Ubuntu 12.10 like)
2. cscope 15.7a-3.6 (Ubuntu source)
3. vim 7.3 (Ubuntu source)
4. mate-terminal
   

Description:

When I command "vim xx.c" in mate-terminal, vim invokes cscope executing "cs add $PROJ/cscope.out" but failed with message:

Error detected while processing /usr/share/vim/vim73/plugin/cscope_maps.vim:
line   46:
cs_read_prompt EOF: Interrupted system call
Press ENTER or type command to continue

cscope_maps.vim line 46 here:

if filereadable("cscope.out")
   cs add cscope.out

elseif $CSCOPE_DB != ""
    cs add $CSCOPE_DB   //line 46 here
endif

I have exported $CSCOPE_DB correctly coz it sometimes worked. Still It happens randomly. I use "cscope -Rbkg" working under $PROJ dir. The problem happens when I work in $PROJ/subdir. Sometimes I can open file with vim normaly without error message. I have tried using cscope-15.6 compiled from source tarball. This never comes out on my CentOS 6.3.
Has any buddy have any suggestions?