mirror of
https://github.com/linux-apfs/apfstests.git
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Ilya Dryomov
a0c87b8074
lvm utility in Ubuntu 14.04 LTS treats -l 100%FREE as a hard number
and not as an approximate upper limit. With ~5G scratch partition
and ~128M scsi_debug device, vg_108 is 1279+31=1310 extents long,
but only 31*2=62 can be allocated with -i 2:
# lvm lvcreate -i 2 -I 4m -l 100%FREE -n lv_108 vg_108
Insufficient suitable allocatable extents for logical volume lv_108: 1248 more required
lvm2 commit 4b6e3b5e5ea6 ("allocation: Allow approximate
allocation when specifying size in percent") made '-l 100%FREE'
possible when creating RAID LVs or setting number of stripes.
Fix it by setting the size to allocate to 100M, which is enough for
the test with 128M scsi_debug device.
[eguan: update commit log a bit to mention the lvm2 commit that
changed the lvcreate behavior]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
101 lines
3.3 KiB
Bash
Executable File
101 lines
3.3 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test 108
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#
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# Test partial block device failure. Calls like fsync() should report failure
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# on partial I/O failure, e.g. a single failed disk in a raid 0 stripe.
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#
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# Test motivated by an XFS bug, and this commit fixed the issue
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# xfs: return errors from partial I/O failures to files
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015 Red Hat Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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echo running > /sys/block/`_short_dev $SCSI_DEBUG_DEV`/device/state
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$UMOUNT_PROG $SCRATCH_MNT >>$seqres.full 2>&1
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$LVM_PROG vgremove -f $vgname >>$seqres.full 2>&1
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$LVM_PROG pvremove -f $SCRATCH_DEV $SCSI_DEBUG_DEV >>$seqres.full 2>&1
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_put_scsi_debug_dev
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/scsi_debug
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_nocheck
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_require_block_device $SCRATCH_DEV
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_require_scsi_debug
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_require_command "$LVM_PROG" lvm
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lvname=lv_$seq
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vgname=vg_$seq
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rm -f $seqres.full
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# _get_scsi_debug_dev returns a scsi debug device with 128M in size by default
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SCSI_DEBUG_DEV=`_get_scsi_debug_dev`
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if [ "$SCSI_DEBUG_DEV" == "/dev/" ]; then
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_fail "Failed to initialize scsi debug device"
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fi
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echo "SCSI debug device $SCSI_DEBUG_DEV" >>$seqres.full
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# create striped volume with 4MB stripe size
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$LVM_PROG pvcreate -f $SCSI_DEBUG_DEV $SCRATCH_DEV >>$seqres.full 2>&1
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$LVM_PROG vgcreate -f $vgname $SCSI_DEBUG_DEV $SCRATCH_DEV >>$seqres.full 2>&1
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# We use yes pipe instead of 'lvcreate --yes' because old version of lvm
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# (like 2.02.95 in RHEL6) don't support --yes option
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yes | $LVM_PROG lvcreate -i 2 -I 4m -L 100m -n $lvname $vgname \
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>>$seqres.full 2>&1
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# wait for lv creation to fully complete
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$UDEV_SETTLE_PROG >>$seqres.full 2>&1
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# _mkfs_dev exits the test on failure, this makes sure test lv is created by
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# above vgcreate/lvcreate operations
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_mkfs_dev /dev/mapper/$vgname-$lvname
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_mount /dev/mapper/$vgname-$lvname $SCRATCH_MNT
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# create a test file with contiguous blocks which will span across the 2 disks
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$XFS_IO_PROG -f -c "pwrite 0 16M" -c fsync $SCRATCH_MNT/testfile >>$seqres.full
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# offline the scsi debug device
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echo offline > /sys/block/`_short_dev $SCSI_DEBUG_DEV`/device/state
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# write to an allocated area of the test file with writes which spans both disks
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# and call fsync, the fsync should report failure
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$XFS_IO_PROG -c "pwrite -b 1M 0 6M" -c fsync $SCRATCH_MNT/testfile \
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>>$seqres.full
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status=0
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exit
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