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Commit Graph

16406 Commits

Author SHA1 Message Date
David Teigland
0534cd9cd4 pvscan: disable sleeping and retrying for udev
When systemd is running pvscans, udev may not be
entirely initialized, so the pvscan should not
sleep and retry waiting for udev info.
2019-08-16 14:41:26 -05:00
David Teigland
61fce72a11 bcache: increase max allowed bcache size
from 128MB to 512MB (the default remains 8MB)
2019-08-16 13:35:09 -05:00
David Teigland
987f2733c7 tests: duplicate-pvs-md
Testing duplicate PV handling for various md device setups/states.
2019-08-16 13:26:12 -05:00
David Teigland
83261b79b5 pvscan cache: use lvmcache_label_scan
instead of the lower level label_scan.  The lvmcache wrapper
around label_scan checks for and eliminates more duplicate devs
and md components.
2019-08-16 13:26:12 -05:00
David Teigland
e01fddc578 improve duplicate pv handling for md components
Eliminate md components at the start so they don't
interfere with actual duplicates, and don't need
to be removed later.  This also allows for choosing
no copy of a PVID if they all happen to be md
components.
2019-08-16 13:26:12 -05:00
David Teigland
ee4a32e992 lvmcache: use devl list helper 2019-08-16 13:26:12 -05:00
David Teigland
96dfad5022 lvmcache: replace found_duplicates variable
With just checking if the duplicates lists are empty.
2019-08-16 13:26:11 -05:00
David Teigland
677833ce6f lvmcache: renaming functions and variables
related to duplicates, no functional changes.
2019-08-16 13:26:11 -05:00
David Teigland
65bcd16be2 md component detection addition in vg_read
Usually md components are eliminated in label scan and/or
duplicate resolution, but they could sometimes get into
the vg_read stage, where set_pv_devices compares the
device to the PV.

If set_pv_devices runs an md component check and finds
one, vg_read should eliminate the components.

In set_pv_devices, run an md component check always
if the PV is smaller than the device (this is not
very common.)  If the PV is larger than the device,
(more common), do the component check when the config
setting is "auto" (the default).
2019-08-16 13:24:34 -05:00
Heinz Mauelshagen
ad560a286a dmeventd: avoid bail out preventing repair in raid plugin
Problem:
even though dead raid component devices are detected, the
raid plugin is bailing out thus preventing a repair attempt.

Rational:
in case of component device errors, the MD resynchronization
thread runs in parallel with the thrown event being processed
by the raid plugin.  The plugin retrieves the raid device status
but that still reflects insync regions as 0 (when it should
already be total regions) because the MD thread didn't update it yet.

Solution:
Remove the insync regions check and let lvconvert carry out its
pre-repair checks and optionally carry out a repair attempt.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1560739
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1468590
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1654860
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1729303
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1741016
2019-08-16 18:07:03 +02:00
Peter Rajnoha
125f27ac37 udev: remove unsupported OPTIONS+="event_timeout" rule
The OPTIONS+="event_timeout" is Unsupported since systemd/udev version 216,
that is ~5 years ago.

Since systemd/udev version 243, there's a new message printed if unsupported
OPTIONS value is used:

  Invalid value for OPTIONS key, ignoring: 'event_timeout=180'

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1740666
2019-08-13 15:18:30 +02:00
Zdenek Kabelac
e653f43732 tests: simplify some var settings
scan_lvs now automatically comes with extend_filter_LVMTEST
2019-08-09 12:57:21 +02:00
Zdenek Kabelac
05c7e09e71 tests: for cluster testing we always need exclusive mirrors
Cluster test would fail without exlusively activated mirror.
FIXME: test is still broken, since LV2 is not active after split.
2019-08-09 12:57:21 +02:00
Zdenek Kabelac
505c1d56e8 tests: accept also value 512
Older kernels provide fixed value 512 instead of 0.
2019-08-09 12:57:21 +02:00
Zdenek Kabelac
1e553159d5 tests: add settle wait before issue remove
Some older BB with older cryptsetup tool do not 'retry' on remove
and when  remove is issued right after 'fsck'  - it might be
rejected with:

Device @PREFIX@-tcrypt2 is busy.

Try to use udevadm settle.
2019-08-09 12:57:21 +02:00
Zdenek Kabelac
d3903d94e9 tests: fix ra checking
Since with some installed package like 'tuned' the value of 'RA' on
PV origin device can be different, adapting tests to count with this.
2019-08-09 12:57:21 +02:00
Zdenek Kabelac
3596210e02 tests: replaces grep -q usage
Since we use 'set -euE -o pipefail' for shell execution,
any failure of any command in the 'piped' shell can result
in failure of whole executed chain - resulting in typically
unsually test skip, that was left unnoticed.

Since checked command have usually short output, the simplest
fix seems to be to let grep parse whole output instead
of quiting after first match.
2019-08-09 12:57:21 +02:00
Zdenek Kabelac
08396b4bce make: generate
Run make generate.
2019-08-09 12:57:07 +02:00
Zdenek Kabelac
728435e7d6 cov: check for socket_path being set
As we check for existince on entering path
let's ensure it's there also on exit path.
2019-08-09 12:57:07 +02:00
Zdenek Kabelac
cc4a92b13c cov: ensure cname exists before derefering it
Just make it clear to analyzers  cname can't be NULL.
TODO: maybe exclude NULL at front of the function...
2019-08-09 12:57:07 +02:00
Zdenek Kabelac
46f1d17c74 libdm: implement search for device names for older kernels
Kernels <2.6.27 don't have /sys/dev dir - add code for looking
out device name via longre seach in /sys/block

This makes commands like 'dmsetup dep -o blkdevname' working.
2019-08-09 12:57:07 +02:00
Zdenek Kabelac
2f5ea9e61a exported_symbols: comment old symbols
Fix versioning for updated symbols dm_stats_create_region
and dm_stats_create_region.

Only the latest symbol should have global entry.

Since I'm not sure what is currenlty the best option for
old symbols - we added support for easy commenting of them
(so we do not lose information when the symbol appeared
for the first time.)

Note: some old already deleted symbols should have been
restored as comments.
2019-08-09 12:57:07 +02:00
Zdenek Kabelac
f2489d9dda make: support comments in exported symbols
Now the lines starting with '#' in exported symbols files are treated as
comments (ignored).
2019-08-09 12:57:07 +02:00
David Teigland
3fcb4697f6 tests: open-file-limit 2019-08-08 15:45:03 -05:00
David Teigland
ecefcc9ca8 increase soft open file limit
When there are more devices than the current soft
open file limit (default 1024), raise the soft limit
to the hard/max limit (default 4096).

Do this prior to scanning in case enough of the
devices are PVs that need to be kept open.
2019-08-08 15:45:03 -05:00
David Teigland
eb6aa5fefe devices: put ifdef around BLKPBSZGET
BLKPBSZGET is not defined before kernel version 2.6.32
(e.g. rhel5)
2019-08-08 15:45:03 -05:00
David Teigland
09bc2d0fd1 devices: clean up block size functions
Replace calls to the old dev_get_block_size function
with calls to the new dev_get_direct_block_size function,
and remove the old function.
2019-08-07 11:48:10 -05:00
David Teigland
bec3088f85 Revert "config: cache_policy should be cfg_runtime"
This reverts commit 29eee32ac2.

Some other changes are needed to make this runtime.
2019-08-07 11:35:45 -05:00
David Teigland
29eee32ac2 config: cache_policy should be cfg_runtime 2019-08-07 11:08:15 -05:00
David Teigland
682b6216df config: set deprecated version for segment_libraries
Stopped being used some time ago.
2019-08-07 11:08:11 -05:00
David Teigland
3a0d493d91 WHATS_NEW: vgcreate/vgextend logical block size 2019-08-01 10:15:27 -05:00
David Teigland
cd8a0133fa tests: allow-mixed-block-sizes 2019-08-01 10:13:41 -05:00
David Teigland
0404539edb vgcreate/vgextend: restrict PVs with mixed block sizes
Avoid having PVs with different logical block sizes in the same VG.
This prevents LVs from having mixed block sizes, which can produce
file system errors.

The new config setting devices/allow_mixed_block_sizes (default 0)
can be changed to 1 to return to the unrestricted mode.
2019-08-01 10:06:47 -05:00
David Teigland
c1996c78c1 WHATS_NEW: fix large physical block size 2019-07-30 16:14:28 -05:00
David Teigland
e3ba8561fa tests: large-physical-sector-size 2019-07-30 15:59:11 -05:00
David Teigland
7f347698e3 Fix rounding writes up to sector size
Do this at two levels, although one would be enough to
fix the problem seen recently:

- Ignore any reported sector size other than 512 of 4096.
  If either sector size (physical or logical) is reported
  as 512, then use 512.  If neither are reported as 512,
  and one or the other is reported as 4096, then use 4096.
  If neither is reported as either 512 or 4096, then use 512.

- When rounding up a limited write in bcache to be a multiple
  of the sector size, check that the resulting write size is
  not larger than the bcache block itself.  (This shouldn't
  happen if the sector size is 512 or 4096.)
2019-07-26 14:21:08 -05:00
Marian Csontos
dd19fa9ff3 tests: Fix unbound variable
Test `aux kernel_at_least 5 1` fails even for newer kernel
with `$3: unbound variable` when using `set -u`.
2019-07-24 16:30:15 +02:00
David Teigland
aa58f9bd9b tests: lvm-on-md use variable run dir
for hints file
2019-07-12 16:51:49 -05:00
David Teigland
bbca70a0b7 tests: metadata-zero-space
Test zero padding between copies of metadata.
2019-07-12 15:03:47 -05:00
David Teigland
c22ad12bab metadata: extend writes to zero space
Previously, consecutive copies of metadata would have garbage
data in the space between them.  After metadata wrapping,
the garbage would be portions of old metadata.  This made
analysis of the metadata area more difficult.

This would happen because the start of new copy of metadata
is advanced from the end of the last copy to start at the
next 512 byte boundary.

Zero the space between consecutive copies of metadata by
extending each metadata write to end at the next 512 byte
boundary.  The size of the metadata itself is not extended,
only the write.  The buffer being written contains the
metadata text followed by the necessary number of zeros.
2019-07-12 15:00:12 -05:00
David Teigland
7657313740 pvck: fix looping dump metadata_all
dump metadata_all wouldn't quit if the metadata wrapped.
2019-07-12 14:09:06 -05:00
David Teigland
7230aa891c tests: pvscan-autoactivate test unmatching dev and PV size 2019-07-11 11:38:12 -05:00
David Teigland
4eb0e65693 tests: extend lvm-on-md 2019-07-11 11:20:06 -05:00
David Teigland
4567c6a2b2 enable full md component detection at the right time
An active md device with an end superblock causes lvm to
enable full md component detection.  This was being done
within the filter loop instead of before, so the full
filtering of some devs could be missed.

Also incorporate the recently added config setting that
controls the md component detection.
2019-07-10 13:30:50 -05:00
David Teigland
b16abb3816 pvscan: fix PV online when device has a different size
Fix commit 7836e7aa1c
"pvscan: ignore device with incorrect size"

which caused pvscan to not consider a PV online (for purposes
of event based activation) if the PV and device sizes differed.

This helped to avoid mistaking MD components for PVs, and is
replaced by triggering an md component check when PV and device
sizes differ (which happens in set_pv_device).
2019-07-09 13:45:09 -05:00
David Teigland
f17353e3e6 md component detection for differing PV and device sizes
This check was mistakenly removed when shifting code in commit
"separate code for setting devices from metadata parsing".

Put it back with some new conditions.
2019-07-09 13:40:41 -05:00
David Teigland
d2b88f2715 scan: remove unused arg to setup_bcache 2019-07-09 13:16:26 -05:00
Heinz Mauelshagen
1b63a219f4 lvconvert: allow --stripes/--stripesize in 'mirror' conversions
This allows the creation of a striped mirror leg(s) during upconvert
by adding lvconvert command line options --stripes/--stripesize
for 'mirror' to tools/command-lines.in.

In case multiple mirror legs are being added, all will have the
same requested striped layout.

Resolves: rhbz1720705
2019-07-08 19:32:17 +02:00
Peter Rajnoha
fef8e50689 udev: do not overwrite ID_MODEL in 69-dm-lvm-metad.rules
We've been assigning this in 69-dm-lvm-metad.rules:

  ENV{ID_MODEL}="LVM PV $env{ID_FS_UUID_ENC} on /dev/$name"

This was for the description to appear for each systemd device
unit representing this device, for example:

  $systemctl -a | grep "LVM PV"
  dev-block-252:2.device                                                                                         loaded    active   plugged   LVM PV JhxC7B-YTgk-3jIU-5GVo-c4gV-W8t3-UUz06p on /dev/vda2 2
  dev-disk-by\x2did-lvm\x2dpv\x2duuid\x2dJhxC7B\x2dYTgk\x2d3jIU\x2d5GVo\x2dc4gV\x2dW8t3\x2dUUz06p.device         loaded    active   plugged   LVM PV JhxC7B-YTgk-3jIU-5GVo-c4gV-W8t3-UUz06p on /dev/vda2 2
  ...

However, there could be an actual ID_MODEL that people are interested in
more than the fact that this is an LVM PV and so we shouldn't overwrite
the value.

Also, we already have a symlink /dev/disk/by-id/lvm-pv-uuid-<PV_UUID>
created which is then reflected as device unit (all device's symlinks
have systemd device unit representation) so we can still reach this
information in systemd unit listings even without setting the ID_MODEL.

Reported here: https://github.com/lvmteam/lvm2/issues/21
2019-07-04 12:57:55 +02:00
David Teigland
f938545687 cache: warn and prompt for writeback with cachevol
The cache repair utility does not yet work with a cachevol
(where metadata and data exist on the same LV.)  So, warn
and prompt if writeback is specified with a cachevol.
2019-07-02 11:03:03 -05:00