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Peter Rajnoha f82e0210b7 dev-ext: issue error if external_device_info_source=udev and udev db record incomplete
Udev db records are marked as not initialized (incomplete) on timeout.
Issue an error message whenever LVM finds such records so users are
aware that something's going wrong with udev db.

This is important in case we use devices/external_device_info_source="udev"
where udev database records are used to do various filtering decisions.

For example:

udev log of timed out worker:

Nov 11 13:02:25 raw.virt systemd-udevd[607]: seq 1997 '/devices/virtual/block/dm-2' is taking a long time
Nov 11 13:04:25 raw.virt systemd-udevd[607]: seq 1997 '/devices/virtual/block/dm-2' killed
Nov 11 13:04:25 raw.virt systemd-udevd[607]: worker [11221] terminated by signal 9 (Killed)
Nov 11 13:04:25 raw.virt systemd-udevd[607]: worker [11221] failed while handling '/devices/virtual/block/dm-2'
...

LVM also issues error message visibly if incomplete udev db record is found,
devices/external_device_info_source="udev" is set:

$ pvs
  Udev database has incomplete information about device /dev/dm-2.
  Failed to get external handle for device /dev/dm-2 [udev].
  ...
2015-11-11 13:14:07 +01:00
autoconf autoconf: Update config.guess/sub to 2014-01-01. 2014-01-21 22:00:15 +00:00
conf conf: clarify compact output settings 2015-10-20 11:01:09 +02:00
coverity coverity: Add placeholder modelling file. 2015-11-10 01:37:11 +00:00
daemons lvmetad: change recent cleanups 2015-11-09 12:18:43 -06:00
doc doc: mention new invalid states in lvmetad_design 2015-06-23 16:48:28 -05:00
include configure: relocate configure.h 2015-09-11 21:46:35 +02:00
lib dev-ext: issue error if external_device_info_source=udev and udev db record incomplete 2015-11-11 13:14:07 +01:00
libdaemon libdaemon: prohibit use of %d for 64bit numbres 2015-11-09 14:03:25 +01:00
libdm libdm: reorder error path 2015-11-10 21:41:47 +01:00
liblvm segtypes: Use SEG_TYPE_NAME_ string constants. 2015-09-22 19:04:12 +01:00
man man: pvs/vgs/lvs and -o+, -o-, -o# 2015-10-30 15:47:56 +01:00
nix lockd: Clean up spec 2015-07-04 14:36:57 +02:00
old-tests report: select: refactor: move str_list to libdm 2014-06-17 16:27:20 +02:00
po makefiles: disable po file targes 2015-05-14 14:19:40 +02:00
python gitignore: Update for in-place build. 2015-07-27 13:18:35 +01:00
report-generators add copyright notices to new files 2010-07-28 12:20:38 +00:00
reports [REPORT-GENERATORS] cut down stylsheet.css to what we actually use 2010-07-21 10:00:38 +00:00
scripts makefiles: switch to rpath-link 2015-10-14 00:51:55 +02:00
spec spec: Add python bindings 2015-11-02 12:42:32 +01:00
test tests: handle missing delay_dev 2015-11-09 19:07:53 +01:00
tools vgrename: check if new and old names match 2015-11-09 13:23:59 -06:00
udev udev: fix missing escape for + 2015-08-12 19:46:44 +02:00
unit-tests cleanup: use DM_ARRAY_SIZE 2014-04-08 11:00:15 +02:00
.gitignore gitignore: Update for in-place build. 2015-07-27 13:18:35 +01:00
acinclude.m4 configure: detect st_ctim 2015-03-18 13:42:24 +01:00
aclocal.m4 tests: extend timer for 4 hours 2015-10-26 23:57:47 +01:00
configure configure: report whether to build lvmlockd 2015-11-09 09:58:27 +01:00
configure.in configure: report whether to build lvmlockd 2015-11-09 09:58:27 +01:00
COPYING Outline docs 2001-12-31 16:12:40 +00:00
COPYING.LIB Fix inconsistent licence notices: executables are GPLv2; libraries LGPLv2.1. 2007-08-20 20:55:30 +00:00
INSTALL quick review of docs 2008-11-04 17:49:22 +00:00
make.tmpl.in makefiles: generate Local 2015-10-13 16:02:20 +02:00
Makefile.in makefiles: src dirs have depth 5 2015-10-13 16:02:20 +02:00
README README: fix link to lvm-devel mailing list 2015-03-31 15:44:00 +02:00
VERSION post-release 2015-11-09 01:48:57 +00:00
VERSION_DM post-release 2015-11-09 01:48:57 +00:00
WHATS_NEW dev-ext: issue error if external_device_info_source=udev and udev db record incomplete 2015-11-11 13:14:07 +01:00
WHATS_NEW_DM libdm: add test for dm_task_get_message_response() 2015-11-09 10:19:19 +01:00

This tree contains the LVM2 and device-mapper tools and libraries.

For more information about LVM2 read the changelog in the WHATS_NEW file.
Installation instructions are in INSTALL.

There is no warranty - see COPYING and COPYING.LIB.

Tarballs are available from:
  ftp://sources.redhat.com/pub/lvm2/

The source code is stored in git:
  http://git.fedorahosted.org/git/lvm2.git
  git clone git://git.fedorahosted.org/git/lvm2.git

Mailing list for general discussion related to LVM2:
  linux-lvm@redhat.com
  Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm

Mailing lists for LVM2 development, patches and commits:
  lvm-devel@redhat.com
  Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel

  lvm2-commits@lists.fedorahosted.org (Read-only archive of commits)
  Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits

Mailing list for device-mapper development, including kernel patches
and multipath-tools:
  dm-devel@redhat.com
  Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel

The source code repository used until 7th June 2012 is accessible here:
  http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.