2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015 Red Hat Inc. All Rights Reserved.
7 # Test partial block device failure. Calls like fsync() should report failure
8 # on partial I/O failure, e.g. a single failed disk in a raid 0 stripe.
10 # Test motivated by an XFS bug, and this commit fixed the issue
11 # xfs: return errors from partial I/O failures to files
14 seqres=$RESULT_DIR/$seq
15 echo "QA output created by $seq"
19 status=1 # failure is the default!
20 trap "_cleanup; exit \$status" 0 1 2 3 15
25 echo running > /sys/block/`_short_dev $SCSI_DEBUG_DEV`/device/state
26 $UMOUNT_PROG $SCRATCH_MNT >>$seqres.full 2>&1
27 $LVM_PROG vgremove -f $vgname >>$seqres.full 2>&1
28 $LVM_PROG pvremove -f $SCRATCH_DEV $SCSI_DEBUG_DEV >>$seqres.full 2>&1
33 # get standard environment, filters and checks
38 # real QA test starts here
41 _require_scratch_nocheck
42 _require_block_device $SCRATCH_DEV
44 _require_command "$LVM_PROG" lvm
50 # _get_scsi_debug_dev returns a scsi debug device with 128M in size by default
51 SCSI_DEBUG_DEV=`_get_scsi_debug_dev 512 512 0 300`
52 if [ "$SCSI_DEBUG_DEV" == "/dev/" ]; then
53 _fail "Failed to initialize scsi debug device"
55 echo "SCSI debug device $SCSI_DEBUG_DEV" >>$seqres.full
57 # create striped volume with 4MB stripe size
58 $LVM_PROG pvcreate -f $SCSI_DEBUG_DEV $SCRATCH_DEV >>$seqres.full 2>&1
59 $LVM_PROG vgcreate -f $vgname $SCSI_DEBUG_DEV $SCRATCH_DEV >>$seqres.full 2>&1
60 # We use yes pipe instead of 'lvcreate --yes' because old version of lvm
61 # (like 2.02.95 in RHEL6) don't support --yes option
62 yes | $LVM_PROG lvcreate -i 2 -I 4m -L 275m -n $lvname $vgname \
64 # wait for lv creation to fully complete
65 $UDEV_SETTLE_PROG >>$seqres.full 2>&1
67 # _mkfs_dev exits the test on failure, this makes sure test lv is created by
68 # above vgcreate/lvcreate operations
69 _mkfs_dev /dev/mapper/$vgname-$lvname
71 _mount /dev/mapper/$vgname-$lvname $SCRATCH_MNT
73 # create a test file with contiguous blocks which will span across the 2 disks
74 $XFS_IO_PROG -f -c "pwrite 0 16M" -c fsync $SCRATCH_MNT/testfile >>$seqres.full
76 # offline the scsi debug device
77 echo offline > /sys/block/`_short_dev $SCSI_DEBUG_DEV`/device/state
79 # write to an allocated area of the test file with writes which spans both disks
80 # and call fsync, the fsync should report failure
81 $XFS_IO_PROG -c "pwrite -b 1M 0 6M" -c fsync $SCRATCH_MNT/testfile \