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Patch adds check for stripe not only in direct
LV segment but also in mirror image segment.
This prevents bugs like:
# lvcreate -i2 -l10 -n lv vg_test
# lvconvert -m1 -i1 vg_test/lv
# lvreduce -f -l1 vg_test/lv
WARNING: Reducing active logical volume to 4.00 MiB
THIS MAY DESTROY YOUR DATA (filesystem etc.)
Reducing logical volume lv to 4.00 MiB
Segment extent reduction 9 not divisible by #stripes 2
Logical volume lv successfully resized
# lvremove -f vg_test
Segment extent reduction 1 not divisible by #stripes 2
LV segment lv:0-4294967295 is incorrectly listed as being used by LV lv_mimage_0
Internal error: LV segments corrupted in lv_mimage_0.
- somewhat neater, more consistent and more readable output
- possible to set any lvm.conf value: aux lvmconf "section/key = value"
- LVM_TEST_NODEBUG to suppress the (lengthy) "## DEBUG" output
- back-substitution on test output ($TESTDIR/$PREFIX -> @TESTDIR@/@PREFIX@)
- support code moved from test/ to test/lib/ --> less clutter
lvconvert testing is now in its own test, t-lvconvert-mirror-basic ... it
doesn't do anything fancy but it does run lvconvert through a lot of
combinations.
I have also merged the remaining t-mirror-lvconvert tests into
t-lvconvert-mirror and abolished the former. The latter will be split again
later into more thematic divisions. (The previous split was rather arbitrary,
may I even say random...)
1) Test that the primary mirror image cannot be removed while
the mirror set is sync'ing.
2) Test that you cannot start a second mirror up-convert while
one is already in progress.
The trouble is that if the sync/conversion finishes before the
tests occur, the tests will fail by why of success where there
should have been failure. This means the sync/conversion must
happen very quickly, but this is possible because the test
mirrors we are creating are so small.
In order to decrease the likelyhood of these test failing (or
more correctly, failing to test the right thing), I've increase
the size of the mirrors. It will still be remotely possible that
the tests will fail (by way of failing to test the right thing).
If this continues to happen, more involved mechanisms will need
to be put in place. (Perhaps these will still be created, but
this change should be a remedy until that time.)
