file_rec causes CPU hog / gVim hang

[pmcRTR]

• Problems summary
  file_rec causes gVim to hog CPU at 100% for several seconds causing gVim to hang - system reports application unresponsive before eventually recovering
• Expected
  no CPU hog / hang
• Environment Information
  • OS: Ubuntu Linux 15.04 64bit
  • Vim version: 7.4.488 Huge version with GTK2-GNOME GUI
• Minimal vimrc less than 50 lines

" Your vimrc
" * stripped out version for testing Unite file_rec issue *
filetype off
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
Plugin 'Shougo/unite.vim'
call vundle#end()
filetype plugin indent on
set t_ut=
set encoding=utf-8
syntax on
set nocompatible
set nobackup
set nowritebackup
set noswapfile
set history=100
set ruler
set showcmd
set incsearch
set hlsearch
set smartcase
set ignorecase
set hidden
set nowrap
set backspace=indent,eol,start
set expandtab
set tabstop=2
set shiftwidth=2
set softtabstop=2
set number
set list listchars=tab:»\ ,precedes:…,extends:…,nbsp:~,eol:¬,trail:·
set timeout timeoutlen=1000 ttimeoutlen=100
set laststatus=2
set statusline=%f\ %=L:%l/%L\ %c\ (%p%%)
set autoread
set clipboard+=unnamed
set shortmess+=I
set splitbelow
set splitright
set cursorline
set visualbell
set wildmenu
set lazyredraw
set showmatch
let g:netrw_liststyle=3
set noshowmode
set nrformats=
set foldcolumn=3
set diffopt=filler,context:0
set background=dark
set colorcolumn=80
nnoremap <silent> <leader>rfe :<C-u>Unite -buffer-name=files file_rec<cr>

• Reproducable ways from Vim starting

  0.startup vim.
  1.type leader rfe (ie. run Unite file_rec)
  2.Open a file
  3.Watch gVim process go to 100% in top command output and see gVim hang

[crazymaster]

Is it fixed in Vim 7.4.615?
#701

[pmcRTR]

Yes, confirmed as vim bug - issue not present using version 7.4.683. Apologies, my bad.

[Shougo]

Yes, it is already fixed.