4 # ENOSPC deadlock case from Asano Masahiro.
6 #-----------------------------------------------------------------------
7 # Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved.
9 # This program is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU General Public License as
11 # published by the Free Software Foundation.
13 # This program is distributed in the hope that it would be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write the Free Software Foundation,
20 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
28 echo "QA output created by $seq"
32 status=1 # failure is the default!
33 trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
35 # get standard environment, filters and checks
39 # real QA test starts here
41 _supported_os Linux XFS
46 # "faststart" lets us effectively skip (re-)population
47 [ "X$faststart" != "X" ] && rm -f $SCRATCH_MNT/F*
49 # create many small files using most available space
50 echo "creating small files..."
52 while [ $i -le $files -a "X$faststart" = "X" ]; do
54 xfs_io -f -d -c 'pwrite -b 64k 0 64k' $file >/dev/null
58 # remove every second file, freeing up lots of space
59 echo "removing small files..."
61 while [ $i -le $files -a "X$faststart" = "X" ]; do
66 echo "flushing changes via umount/mount."
73 # now try to hit the deadlock
74 echo "starting parallel allocators..."
76 while [ $i -le 10 ]; do
80 while [ $j -lt 100 ]; do
81 xfs_io -f -c 'pwrite -b 64k 0 16m' $file \
94 # real QA test starts here
95 umount $SCRATCH_DEV 2>/dev/null
98 # see if faststart is possible (and requested)
101 if [ -n "$FASTSTART" -a -f $SCRATCH_MNT/f0 ]; then
102 faststart="-N" # causes us to skip the mkfs step
106 _scratch_mkfs_xfs -dsize=160m,agcount=4 $faststart | _filter_mkfs 2>$tmp.mkfs
107 cat $tmp.mkfs >>$seq.full