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disable_dev can't use transaction - since it may lead occasionaly to
weird error - example could be nomda-missing.sh test case.
Here occasionaly device instead of being removed was left as
error device and testing different code path (which is unfortunatelly
buggy)
When we want to test 'error' device - 'aux error_dev()' should be used.
Delay udev notification after the point udev transaction
is finished - since otherwise some device may still
be found missing until udev transaction is finished.
It's not so easy to recongnize unusable /dev/kmsg
Reorder the code in a way if the first regular read of /dev/kmsg
fail, fallback to klogctl interface.
Call drain_dmesg also for the case there is no user log output.
Add a bit more complexity here - Switch to use /dev/kmsg
which has been introduced in 3.5 kernels and could run without
lossing lines from /proc/kmsg.
On older systems user may set env var LVM_TEST_CAN_CLOBBER_DMESG=1
to get kernel messages via klogctl() call (which deletes dmesg buffer)
otherwise no logging of kernel messages is provided.
Since there could be multiple readers of kmsg (test & journald) it needs
to be fast, to capture things like sysrq trace.
But to capture whole output it would need to prioritize reading of kmsg,
thus we would first log kernel messages and followed by command output.
As a trade-off always log command output first and use large drain
buffer so is captures most of messages, but occasionaly miss some
lines.
Basically reverts commit af8580d756.
"test: Use klogctl in the harness instead of reading /var/log/messages."
Problem is - this interface clears dmesg buffer
(just like call of dmesg -c)
Thus after running lvm2 test suitedmesg is empty - while all the
messages are usually logged in the journal/message, it's still not nice to
clear dmesg buffer.
It's not a pure revert, but switch to use /proc/kmsg directly instead of
reading /var/log/messages.
Test LVM_LVMETAD_PIDFILE for pid for lvm command.
Fix WHATS_NEW envvar name usage
Fix init order in prepare_lvmetad to respect set vars
and avoid clash with system settings.
Update test to really test the 'is running' message.
If we are stuck in user for too long without output,
grab kernel stack traces.
If we just produce too many lines of output, it's
not probably kernel related bug.
When the test is interrupted because debug.log has got to big,
and the test doesn't react on SIGINT - and needs to be only
killed with SIGKILL - it's still valuable to print at least
a portion of this debug.log (currently 4MB).
LVM_TEST_UNLIMITED could be set to avoid this limitation
(i.e. when busy-looping lvm command needs to be running
for gdb attachment)
Make it easier to run a live lvmetad in debugging mode and
to avoid conflicts if multiple test instances need to be run
alongside a live one.
No longer require -s when -f is used: use built-in default.
Add -p to lvmetad to specify the pid file.
No longer disable pidfile if -f used to run in foreground.
If specified socket file appears to be genuine but stale, remove it
before use.
On error, only remove lvmetad socket file if created by the same
process. (Previous code removes socket even while a running instance
is using it!)
Do not use signature wiping for newly created LVs in tests - we're
reusing the devs in tests and such detection could just interfere
inappropriately. We'd need to modify all tests to anwer the prompt
whether any signature found should be removed or not or we'd need
to use "-y" option for all lvcreates in tests. It's better to disable
this feature then and let's do a separate test to test this signature
wiping functionality.
3.12.0 kernel prevents raid test to be usable,
leaving unremovable devices in table.
This needs to be fixed ASAP, meanwhile disable test to make
test machines at least usable.
Add 'can_use_16T' to detect systems where we could
safely use 16T devices without causing system deadlocks.
16T size leads on those to endless loops in udevd
- it calls blkid which tries cached read from such device
- this ends in endless loop.
Related problems:
https://bugzilla.redhat.com/show_bug.cgi?id=1015028
Reverts previously added udevsettle call.
Seems to be unrelated, while udev on old system may take over 10
minutes, to finish it's very slow and CPU intensive work, it doesn't
interact directly with created device, only access /dev/mapper/control
node via dmsetup, so the device is ocasionaly blocked by something else.
Patch helps a bit when lvm2 is build with disabled udev_sync support,
but udevd runs in the system - so it randomly influences unrelated tests
even - so before every test wait at least till udevd is settled.
Reshape code a bit to make sockepair 'swappable' with plain old pipe
call.
Display status for FAILED error.
Increase buffer to hold always at least 1 page size.
Print error results with capitals.
A know issue with kmem_cach is causing failures while testing
RAID 4/5/6 device replacement. Blacklist the offending kernel
so that these tests are not performed there.
Rewrite check lv_on and add new lv_tree_on
Move more pvmove test unrelated code out to check & get sections
(so they do not obfuscate trace output unnecesserily)
Use new lv_tree_on()
NOTE: unsure how the snapshot origin should be accounted here.
Split pmove-all-segments into separate tests for raid and thins
(so the test output properly shows what has been skipped in test)
Update usage of "" around shell vars.
trim needs to trim both sides now.
trim also removes debug.log since it's only called when lvm command
has finished properly (so if something fails afterward, there
is no missleading debug trace in the log)
'die' evaluates given string - so \n could be used for
multiline error report
Also remove debug.log since the command finished properly when we
call 'die'
Note: we should not call 'die' after lvm command failure.
Add a very simple hack for embeding /var/log/messages into
the tests output - it's not ideal since it sometimes breaks lines,
but still gives valuable info.
Creation, deletion, [de]activation, repair, conversion, scrubbing
and changing operations are all now available for RAID LVs in a
cluster - provided that they are activated exclusively.
The code has been changed to ensure that no LV or sub-LV activation
is attempted cluster-wide. This includes the often overlooked
operations of activating metadata areas for the brief time it takes
to clear them. Additionally, some 'resume_lv' operations were
replaced with 'activate_lv_excl_local' when sub-LVs were promoted
to top-level LVs for removal, clearing or extraction. This was
necessary because it forces the appropriate renaming actions the
occur via resume in the single-machine case, but won't happen in
a cluster due to the necessity of acquiring a lock first.
The *raid* tests have been updated to allow testing in a cluster.
For the most part, this meant creating devices with '-aey' if they
were to be converted to RAID. (RAID requires the converting LV to
be EX because it is a condition of activation for the RAID LV in
a cluster.)
Function to create slower responsive device.
Useful for testing things which needs to happen something during on
going operation - with 'delayed' device - much smaller sizes of devices
are needed and its much more deterministic (though still not optimal)
Support tests with abort when libdm encounters internal
error - i.e. for dmsetup tool.
Code execution will be aborted when
env var DM_ABORT_ON_INTERNAL_ERRORS is set to 1
- lvs -o lv_attr has now 10 indicator bits
- use '--ignoremonitoring' instead of the shortcut '--ig' used before (since
it would be ambiguous with new '--ignoreactivationskip')
Test the different RAID lvchange scenarios under snapshot as well.
This patch also updates calculations for where to write to an
underlying PV when testing various syncactions.
aux updates:
prepare_vg now created clustered VG for cluster tests.
since dm-raid doesn't work in cluster, skip the cluster
test when someone checks for dm-raid target until fixed.
Add limit for buffer so if the test is running in some loop
and generating lots of output, the output log gets too large
for browser to display (at least Firefox is quite confused
to display 300MB logs).
For now limit max output of one test to 32MB.
If there is need to see full log set LVM_TEST_UNLIMITED to
disable interruption of test.
harness now also prints max memory used during test,
it user and system time and amount of read/write operations.
This means that a test failure in one flavour no longer prevents all the
subsequent flavours from running. We also get an aggregate summary at
the end of the entire batch, instead of summaries interspersed with
progress output. Do not fail when flavour overrides are empty
'in_sync' was using the last field in the RAID status output as
the location for the sync ratio field. The sync ratio may not always
be the last field, but it will always be the 7th field. So we switch
to using the absolute value rather than computing the last field
index number.
Aux function to replace PV with specifically damaged device.
Usage:
aux error_dev "$dev1" 8:32 96:8
Replaces from 8 sector 32 error 512b sectors
and from 96 sector next 8 sectors will fail on rw.
Rest of device is preserved.
For testing:
dd if="$dev1" of=x bs=512 count=104 conv=sync,noerror iflag=direct
When valgrind usage is desired by user (--enable-valgrind-pool)
skip playing/closing/reopenning with descriptors - it makes
valgridng useless.
Make sleep delay for clvmd start longer.
- logging is not controlled by "levels" but by "types"; types are
independent of each other... implementation of the usual "log level"
user-level semantics can be simply done on top; the immediate
application is enabling/disabling wire traffic logging independently
of other debug data, since the former is rather bulky and can easily
obscure almost everything else
- all logs go to "outlets", of which we currently have 2: syslog and
stderr; which "types" go to which "outlets" is entirely configurable
Add make help target.
Add LVM_TEST_PARALLEL to support parallel runs of tests
Work around the problem the dmsetup table/info may return error
by using dmtable and dminfo function that will use 'should'.
(Error happens when some concurently running process removes table
entry while dmsetup command resolves table entries inside the loop.)
Make the teardown really usable - it will try down to remove all the left
devices even from previous test runs
(the only missing piece is probably proper mdadm teardown)
Add few more local vars
Try to setup PATH and LD_LIBRARY_PATH just once.
Try shorter sleeps.
Indent
Better shell usage
Function simplification
More usage of 'get' functions
Don't use valgrind tracing for check and get function (faster)
Update shell debugging (PS4, better stacktrace)
Support paths with spaces
Export SCRIPTNAME for external usage
Watch for dmeventd unexpectedly started during test
Indent
Add valgrind support:
env LVM_TEST_VALGRIND={0123} (the higher level, more commands tested)
env LVM_TEST_CLVMD=1 runs clvmd within valgrind.
env VALGRIND script name executed for each lvm command (def. is valg).
Smarted teardown - should minimize occurence of left dev entries
(using dmsetup remove -f only as last resort)
sort removed devices by open count before actual removal
Use "" around string that may contain spaces.
Set log/verbose and activation/retry_deactivation to defined value.
Remove debug.log after successful lvm command (easier to check output).
Currently we could not test special prefixes in our test suite.
As teardown will not find such device and basicaly busyloops here,
as at cannot remove such names.
This patch adds possibity to use:
vgcreate V_$vg1 $dev
Note: you still need to use $PREFIX somewhere in the name.
(And of course, it's really bad idea to use $PREFIX (=LVMTEST)
for normally used LVs)
The only purpose of this patch is to allow testing cluster with
special vg names that begins with V_ , P_....
Support timestamping with harness - using VERBOSE=2
Fix also logging in several situation
(i.e. continue logging multiple test in VERBOSE mode,
do not coredump with empty output).
Cleanup generated files from coverage testing.
Do not skip standard .o compilation for lib/not and lib/harness.
Make a bit longer string in harness to fit new shell/ in.
When running tests it might be useful to have an override option when
testing on real /dev and some broken system (i.e. Debian and its rules).
So one can use:
LVM_TEST_DEVDIR=/dev LVM_VERIFY_UDEV=1 make check
When read in drain returned <0 value, terminal content has been trashed.
Remove unneeded memset() and use whole buffer.
Free readbuf before exit (valgrind).
Test whether nodes could be used on given filesystem where TMP
dir is being used and skip teardown quicker in fail case.
(makes the problem quickly obvious if you try to such fs).
Skip teardown_dev if we have not created any devs yet.
and do not mkdir /dev/mapper dir when LVM_TEST_DEVDIR is set.
Drop this test from t-000-basic.sh.
daemon/common code in a single libdaemon.a, which is completely private. This
is currently linked into the lvmetad binary, and will be linked into LVM (the
client part, since static linking only picks up only symbols that are actually
used). I have also added --enable/disable-lvmetad to ./configure; although the
current default is off, I expect this to be flipped to on shortly. There's no
LVM-side support yet, but when there is, even when built, it'll still need to
be enabled by an lvm.conf option.
Add config option to enable crc checking of VG structures.
Currently it's disabled by default.
For the internal test-suite this check it is enabled.
Note: In the case the internal error is detected, debug build with
compile option DEBUG_ENFORCE_POOL_LOCKING helps to catch the source
of the problem.
Since some test may leave devices in suspend mode which would require
carefull order of resume operation - use '-f' to replace them with
error targets
For disable_dev - when 'error' target is used for open count - treat
return code as ok (|| true) to avoid breaking futher test processing.
As the option 'set -e -o pipefail' is very sensite on pipe breaking
stop using '-q' for grep commands.
Otherwise this command (with large enough table) would fail:
dmsetup table | egrep -q
with exit code 141 (128 + SIGPIPE)
As Peter suggested, he prefers to keep '-o pipefail' - so make sure all
piped commands will read the whole output and will not exit too early.
