tests/rm/many-dir-entries-vs-OOM.sh

   1 #!/bin/sh
   2 # In coreutils-8.12, rm,du,chmod, etc. would use too much memory
   3 # when processing a directory with many entries (as in > 100,000).
   4
   5 # Copyright (C) 2011-2012 Free Software Foundation, Inc.
   6
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  21 print_ver_ rm du chmod
  22
  23 expensive_
  24
  25 # With many files in a single directory...
  26 mkdir d && cd d || framework_failure_
  27 seq 200000|xargs touch || framework_failure_
  28
  29 cd ..
  30
  31 # Restricted to 40MB, each of these coreutils-8.12 programs would fail
  32 # with a diagnostic like "rm: fts_read failed: Cannot allocate memory".
  33 ulimit -v 40000
  34 du -sh d || fail=1
  35 chmod -R 700 d || fail=1
  36 rm -rf d || fail=1
  37
  38 Exit $fail