4 # The posix write test. When write size is larger than disk free size,
5 # should write as much as possible until ENOSPC.
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2011-2012 Fujitsu, Inc. All Rights Reserved.
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #-----------------------------------------------------------------------
28 seqres=$RESULT_DIR/$seq
29 echo "QA output created by $seq"
33 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
45 # real QA test starts here
47 _supported_os IRIX Linux
50 echo "------------------------------"
51 echo "write until ENOSPC test"
52 echo "------------------------------"
56 _scratch_unmount 2>/dev/null
57 _scratch_mkfs_sized $((2 * 1024 * 1024 * 1024)) >>$seqres.full 2>&1
60 # this file will get removed to create 256k of free space after ENOSPC
61 # conditions are created.
62 dd if=/dev/zero of=$SCRATCH_MNT/tmp1 bs=256K count=1 >>$seqres.full 2>&1
63 [ $? -ne 0 ] && _fail "Error creating file"
65 # Attempt to completely fill fs
66 dd if=/dev/zero of=$SCRATCH_MNT/tmp2 bs=1M >>$seqres.full 2>&1
68 dd if=/dev/zero of=$SCRATCH_MNT/tmp3 bs=4K >>$seqres.full 2>&1
70 # Last effort, use O_SYNC
71 dd if=/dev/zero of=$SCRATCH_MNT/tmp4 bs=4K oflag=sync >>$seqres.full 2>&1
72 # Save space usage info to the full file
73 echo "Pre rm space:" >> $seqres.full
74 $DF_PROG $SCRATCH_MNT >>$seqres.full 2>&1
76 # Should leave approx 256k free
77 rm -f $SCRATCH_MNT/tmp1
79 echo "Post rm space:" >> $seqres.full
80 $DF_PROG $SCRATCH_MNT >>$seqres.full 2>&1
81 _freespace=`$DF_PROG -k $SCRATCH_MNT | tail -n 1 | awk '{print $5}'`
82 [ $_freespace -gt 1024 ] && _fail "could not sufficiently fill filesystem"
84 # Try to write more than available space in chunks that will allow at least one
85 # full write to succeed.
86 dd if=/dev/zero of=$SCRATCH_MNT/tmp1 bs=128k count=8 >>$seqres.full 2>&1
87 echo "Bytes written until ENOSPC:" >>$seqres.full
88 du $SCRATCH_MNT/tmp1 >>$seqres.full
90 # And at least some of it should succeed.
91 _filesize=`ls -l $SCRATCH_MNT/tmp1 | awk '{print $5}'`
92 [ $_filesize -lt $((128 * 1024)) ] && \
93 _fail "Partial write until enospc failed; wrote $_filesize bytes."