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The /proc/self/mountinfo is not bound to device names like /proc/mounts
and it uses major:minor pairs instead.
This fixes a situation in which a volume is mounted and then renamed
later on - that makes /proc/mounts unreliable when detecting mounted
volumes.
See also https://bugzilla.redhat.com/show_bug.cgi?id=1196910.
Commit b64703401da1f4bef60579a0b3766c087fcfe96a cause regression
when handling stacked resize of pool metadata volume that would
be a raid LV.
Fix it by properly setting up size also for layer extension.
Continuing with lvconvert style updates.
Minimize usage of '\:' as zero-width break space, since html renderers
do not handle this groff sign well (some of them seems to even render
':' there).
But since we do not want see badly rendered man pages itself, prefer
the 'man visual' appearence over html page generation (man2html should
be actually fixed).
Start to use 'user input option' with Capitals more consistently.
Fixing vpath usage as it has been checking for existance of
generated file also in the $(scrdir) e.g.:
No need to remake target '10-dm.rules.in'; using VPATH name '...'
If the $(srcdir) had been also $(builddir) and contained already
generated rules file, it's been used instead generating new
one.
(See: http://make.mad-scientist.net/papers/how-not-to-use-vpath/)
Commit abd9618dd8b77ca1974074ae76fa6a08f1a687d9 tried to improve
parsing of vg name from logical path - but still missed couple
corner cases.
This patch further improves the logic and reuses
validate_lvname_param() for parsing of lv_name.
Also explicitly checks for LVM_VG_NAME in the right case.
So now also properly parses cases like:
'lvconvert --repairt vg/'
and will provide correct error message.
Specifying an output width of 0 now leads to a default minimum width
taken from the width of the column heading. (Most fields should use
this.)
Components of field names are generally separated by underscores (which
are optional at run-time). (Dropped 3 duplicate fields now covered by
this rule.)
Each field heading must be unique and generally doesn't have spaces
between words (which get capitalised) unless they are already short and
the fields are normally longer or clarity demands it.
This command option can be used to trigger a D-Bus
notification independent of the usual notifications
that are sent from other commands as an effect of
changes to PV/VG/LV state. If lvm is not built with
dbus notification support or if notify_dbus is disabled
in the config, this command will exit with an error.
When a command modifies a PV or VG, or changes the
activation state of an LV, it will send a dbus
notification when the command is finished. This
can be enabled/disabled with a config setting.
Pair kernel_cache_settings with kernel_cache_policy.
There is very small chance in error case that the value in table
might be differnet from the value stored in metadata
so make it 'checkable'.
Showing 'u' in the pv_attr reporting field is mostly unnecessary because
most PVs are allocatable, and being allocatable implies it is (u)sed,
and this is already obvious from other fields in the default 'pvs'
output like the VG name.
So move the new (u)sed pv_attr from character position 4 to 1, and only
show it in those rare cases when the PV is not (a)llocatable or the
relevant metadata is missing.
(Scripts should not be using pv_attr, but rather pv_allocatable,
pv_exported, pv_missing, pv_in_use etc.)
Correct name is lvm2-lvmdbusd.service not lvmdbusd.service.
This makes the bus-activation (auto-activation) work.
Signed-off-by: Vratislav Podzimek <vpodzime@redhat.com>
Since we want to read env LVM_VG_NAME vg names,
we cannot just check LV names which do contain '/'.
So before the patch commands like:
> lvconvert --repair vg
Before:
Please provide a valid volume group name
After:
Path required for Logical Volume "vg".
Please provide a valid volume group name
> LVM_VG_NAME=vg lvconvert --repair vg
Before:
Please provide a valid volume group name
After:
Can't find LV vg in VG vg
Commit ca878a3426197b629c76e98cfc049948da470cd7 introduced an issue
that zero sized extesion suddenly started to be accepted and
missed to return error.
Properly check invalid input values for sizes.
Reshuffle messages during pvremove.
Always print WARNING: when PV is in use so using options
--force --force doesn't make this important user
notification go away.
Simplify variable 'used' usage (so older gcc doesn't warn
about the use of unitilizied variable).
Add some '.' into messages.
Currently it's been checked for 'zero' header for thin-pool,
but lets use it always for cache as well - since it's relatively 'cheap'
detection of read 'error' problems as thin/cache tools
currently do not work fast enough in this case.
When update fails in suspend() (sending of messages
fails because metadata space is full) call resume(),
so the locking sequence works properly for clustering.
Also failing deactivation should unlock memory.
Fix reporting of Fail thin-pool target status
as attr[8] letter 'F'.
Report 'needs_check' status from thin-pool target via
attr field [4] (letter 'c'/'C'), and also via CheckNeeded field.
TODO: think about better name here?
TODO: lots of prop_not_implemented_set
If we know that a PV belongs to some VG and we're missing metadata
(because we have only those PV(s) from VG present in the system that
don't have metadata areas), we should skip such PV when processing
under system ID.
This is because we know that the PV belongs to some VG, but we
really can't decide whether it matches system ID unless the VG
metadata is present again.
This is a hotfix for a bug introduced in
6d7dc87cb356162f912b13c8a0cd198037c0226b.
The bug description: First we allocate memory for
processing handle (at an address 1) then we
allocate some memory on the same pool for later use
in pvmove_poll function inside the process_each_pv
function (at an address 2). After we jump out of
process_each_pv we called destroy_processing_handle.
As a result of destroying the handle memory pool could
deallocate all memory at address 1 or higher. The
pvmove_poll function tried to copy a memory allocated
at address 2 that could be returned to the system.
If it was so it led to segfault.
We need to rethink proper fix but in the same time
cmd->mem pool is recreated per each lvm command so
this should not cause problems even when we run
multiple commands in lvm shell.
A valgrind snapshot of the corruption:
Invalid read of size 1
at 0x4C29F92: strlen (mc_replace_strmem.c:403)
by 0x5495F2E: dm_pool_strdup (pool.c:51)
by 0x1592A7: _create_id (pvmove.c:774)
by 0x159409: pvmove_poll (pvmove.c:796)
by 0x1599E3: pvmove (pvmove.c:931)
by 0x15105B: lvm_run_command (lvmcmdline.c:1655)
by 0x1523C3: lvm2_main (lvmcmdline.c:2121)
by 0x1754F3: main (lvm.c:22)
Address 0xf15df8a is 138 bytes inside a block of size 8,192 free'd
at 0x4C28430: free (vg_replace_malloc.c:446)
by 0x5494E73: dm_free_wrapper (dbg_malloc.c:357)
by 0x5495DE2: _free_chunk (pool-fast.c:318)
by 0x549561C: dm_pool_free (pool-fast.c:151)
by 0x164451: destroy_processing_handle (toollib.c:1837)
by 0x1598C1: pvmove (pvmove.c:903)
by 0x15105B: lvm_run_command (lvmcmdline.c:1655)
by 0x1523C3: lvm2_main (lvmcmdline.c:2121)
by 0x1754F3: main (lvm.c:22)
'verbose' was marked as a boolean option while it
takes integer args - so it has limited usage to 0 or 1,
but we supported 0-4 at least.
Fix it by switching to corrent int type.
(Hopefully noone was trying to use this variable as true/yes/false/no
way - as the would be unsupported/undocumented).
Reporter noticed lvm2 incorrectly translated
lvm2 threshold value to water mark in commit:
99237f0908d87592815f4bdf3c239e8a108e835c
Fix it by properly translating size to number of
blocks in thin-pool and then calc for free blocks
matching configured lvm2 threshold value.
Reported-by: Ming-Hung Tsai <mingnus@gmail.com>
