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lvm2/test/shell/pvcreate-operation.sh
Peter Rajnoha 3c978f7bcc pvcreate: fix check for 2nd mda at end of disk fits if using pvcreate --restorefile
Fix code checking that the 2nd mda which is at the end of disk really
fits the available free space and avoid any DA and MDA interleaving when
we already have DA preallocated. This mainly applies when we're restoring
a PV from VG backup using pvcreate --restorefile where we may already have
some DA preallocated - this means the PV was in a VG before with already
allocated space from it (the LVs were created). Hence we need to avoid
stepping into DA - the MDA can never ever be inside in such case!

The code responsible for this calculation was already in
_text_pv_add_metadata_area fn, but it had a bug in the calculation where
we subtracted one more sector by mistake and then the code could still
incorrectly allocate the MDA inside existing DA. The patch also renames
the variable in the code so it doesn't confuse us in future.

Also, if the 2nd mda doesn't fit, don't silently continue with just 1
MDA (at the start of the disk). If 2nd mda was requested and we can't
create that due to unavailable space, error out correctly (the patch
also adds a test to shell/pvcreate-operation.sh for this case).
2017-08-15 13:40:25 +02:00

190 lines
6.5 KiB
Bash

#!/usr/bin/env bash
# Copyright (C) 2008-2012 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
SKIP_WITH_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1
. lib/inittest
aux lvmconf 'devices/md_component_detection = 1'
aux prepare_devs 4
if test -n "$LVM_TEST_LVM1" ; then
mdatypes='1 2'
else
mdatypes='2'
fi
for mdatype in $mdatypes
do
# pvcreate (lvm$mdatype) refuses to overwrite an mounted filesystem (bz168330)
test ! -d mnt && mkdir mnt
if mke2fs "$dev1"; then
mount "$dev1" mnt
not pvcreate -M$mdatype "$dev1" 2>err
grep "Can't open $dev1 exclusively. Mounted filesystem?" err
umount "$dev1"
# wipe the filesystem signature for next
# pvcreate to not issue any prompts
dd if=/dev/zero of="$dev1" bs=1K count=2
fi
# pvcreate (lvm$mdatype) succeeds when run repeatedly (pv not in a vg) (bz178216)
pvcreate -M$mdatype "$dev1"
pvcreate -M$mdatype "$dev1"
pvremove -f "$dev1"
# pvcreate (lvm$mdatype) fails when PV belongs to VG
# pvcreate -M$mdatype "$dev1"
vgcreate -M$mdatype $vg1 "$dev1"
not pvcreate -M$mdatype "$dev1"
vgremove -f $vg1
pvremove -f "$dev1"
# pvcreate (lvm$mdatype) fails when PV1 does and PV2 does not belong to VG
pvcreate -M$mdatype "$dev1"
pvcreate -M$mdatype "$dev2"
vgcreate -M$mdatype $vg1 "$dev1"
# pvcreate a second time on $dev2 and $dev1
not pvcreate -M$mdatype "$dev2" "$dev1"
vgremove -f $vg1
pvremove -f "$dev2" "$dev1"
# NOTE: Force pvcreate after test completion to ensure clean device
#test_expect_success
# "pvcreate (lvm$mdatype) fails on md component device"
# 'mdadm -C -l raid0 -n 2 /dev/md0 "$dev1" "$dev2" &&
# pvcreate -M$mdatype "$dev1";
# status=$?; echo status=$status; test $status != 0 &&
# mdadm --stop /dev/md0 &&
# pvcreate -ff -y -M$mdatype "$dev1" "$dev2" &&
# pvremove -f "$dev1" "$dev2"'
done
# pvcreate (lvm2) fails without -ff when PV with metadatacopies=0 belongs to VG
pvcreate --metadatacopies 0 "$dev1"
pvcreate --metadatacopies 1 "$dev2"
vgcreate $vg1 "$dev1" "$dev2"
not pvcreate "$dev1"
vgremove -f $vg1
pvremove -f "$dev2" "$dev1"
# pvcreate (lvm2) succeeds with -ff when PV with metadatacopies=0 belongs to VG
pvcreate --metadatacopies 0 "$dev1"
pvcreate --metadatacopies 1 "$dev2"
vgcreate $vg1 "$dev1" "$dev2"
pvcreate -ff -y "$dev1"
vgreduce --removemissing $vg1
vgremove -ff $vg1
pvremove -f "$dev2" "$dev1"
for i in 0 1 2 3
do
# pvcreate (lvm2) succeeds writing LVM label at sector $i
pvcreate --labelsector $i "$dev1"
dd if="$dev1" bs=512 skip=$i count=1 2>/dev/null | strings | grep LABELONE >/dev/null
pvremove -f "$dev1"
done
# pvcreate (lvm2) fails writing LVM label at sector 4
not pvcreate --labelsector 4 "$dev1"
backupfile="$PREFIX.mybackupfile"
uuid1=freddy-fred-fred-fred-fred-fred-freddy
uuid2=freddy-fred-fred-fred-fred-fred-fredie
bogusuuid=fred
# pvcreate rejects uuid option with less than 32 characters
not pvcreate --norestorefile --uuid $bogusuuid "$dev1"
# pvcreate rejects uuid option without restorefile
not pvcreate --uuid $uuid1 "$dev1"
# pvcreate rejects uuid already in use
pvcreate --norestorefile --uuid $uuid1 "$dev1"
not pvcreate --norestorefile --uuid $uuid1 "$dev2"
# pvcreate rejects non-existent file given with restorefile
not pvcreate --uuid $uuid1 --restorefile "$backupfile" "$dev1"
# pvcreate rejects restorefile with uuid not found in file
pvcreate --norestorefile --uuid $uuid1 "$dev1"
vgcfgbackup -f "$backupfile"
not pvcreate --uuid $uuid2 --restorefile "$backupfile" "$dev2"
# vgcfgrestore of a VG containing a PV with zero PEs (bz #820116)
# (use case: one PV in a VG used solely to keep metadata)
size_mb=$(($(blockdev --getsz "$dev1") / 2048))
pvcreate --metadatasize $size_mb "$dev1"
vgcreate $vg1 "$dev1"
vgcfgbackup -f "$backupfile"
vgcfgrestore -f "$backupfile" "$vg1"
vgremove -f $vg1
pvremove -f "$dev1"
# pvcreate --restorefile should handle --dataalignment and --dataalignmentoffset
# and check it's compatible with pe_start value being restored
# X * dataalignment + dataalignmentoffset == pe_start
pvcreate --norestorefile --uuid "$uuid1" --dataalignment 600k --dataalignmentoffset 32k "$dev1"
vgcreate $vg1 "$dev1"
vgcfgbackup -f "$backupfile" "$vg1"
vgremove -ff $vg1
pvremove -ff "$dev1"
# the dataalignment and dataalignmentoffset is ignored here since they're incompatible with pe_start
pvcreate --restorefile "$backupfile" --uuid "$uuid1" --dataalignment 500k --dataalignmentoffset 10k "$dev1" 2> err
grep "incompatible with restored pe_start value" err
# 300k is multiple of 600k so this should pass
pvcreate --restorefile "$backupfile" --uui "$uuid1" --dataalignment 300k --dataalignmentoffset 32k "$dev1" 2> err
not grep "incompatible with restored pe_start value" err
# pvcreate rejects non-existent uuid given with restorefile
not pvcreate --uuid "$uuid2" --restorefile "$backupfile" "$dev1" 2> err
grep "Can't find uuid $uuid2 in backup file $backupfile" err
# pvcreate rejects restorefile without uuid
not pvcreate --restorefile "$backupfile" "$dev1" 2>err
grep -- "--uuid is required with --restorefile" err
# pvcreate rejects uuid restore with multiple volumes specified
not pvcreate --uuid "$uuid1" --restorefile "$backupfile" "$dev1" "$dev2" 2>err
grep "Can only set uuid on one volume at once" err
# --bootloaderareasize not allowed with pvcreate --restorefile
not pvcreate --uuid "$uuid1" --restorefile "$backupfile" --bootloaderareasize 1m "$dev1" "$dev2" 2>err
grep -- "Command does not accept option combination: --bootloaderareasize with --restorefile" err
rm -f "$backupfile"
pvcreate --norestorefile --uuid $uuid1 "$dev1"
vgcreate --physicalextentsize 1m $vg1 "$dev1"
vgcfgbackup -f "$backupfile" "$vg1"
vgremove -ff "$vg1"
pvremove -ff "$dev1"
# when 2nd mda requested on pvcreate --restorefile and not enough space for it, pvcreate fails
not pvcreate --restorefile "$backupfile" --uuid $uuid1 --metadatacopies 2 "$dev1" 2>err
grep "Not enough space available for metadata area with index 1 on PV $dev1" err
rm -f "$backupfile"
# pvcreate wipes swap signature when forced
dd if=/dev/zero of="$dev1" bs=1024 count=64
mkswap "$dev1"
blkid -c /dev/null "$dev1" | grep "swap"
pvcreate -f "$dev1"
# blkid cannot make up its mind whether not finding anything it knows is a failure or not
(blkid -c /dev/null "$dev1" || true) | not grep "swap"