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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
lvm2/lib/device
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
..
dev-cache.c dev-cache: fix use of uninitialized device status if reading outdated .cache record 2015-09-04 18:00:29 +02:00
dev-cache.h report: select: refactor: move str_list to libdm 2014-06-17 16:27:20 +02:00
dev-dasd.c device: Tidy DASD CDL format detection code. 2015-10-27 15:27:52 +00:00
dev-ext-udev-constants.h cleanup: add dev-ext-udev-constants.h with constants/names of the properties/values used from udev db 2015-01-30 13:17:12 +01:00
dev-ext.c dev-ext: issue error if external_device_info_source=udev and udev db record incomplete 2015-11-11 13:14:07 +01:00
dev-io.c device: Don't try to close config file on failure. 2015-08-17 12:57:01 +01:00
dev-luks.c device: cleanup signature wiping functions 2013-11-27 12:56:58 +01:00
dev-md.c cleanup: add dev-ext-udev-constants.h with constants/names of the properties/values used from udev db 2015-01-30 13:17:12 +01:00
dev-swap.c dev-swap: use SECTOR_SHIFT 2014-03-22 20:43:05 +01:00
dev-type.c dev-type: fix TOCTOU order 2015-11-09 10:19:20 +01:00
dev-type.h pvcreate: don't support unpartitioned DASD devices with CDL formatted 2015-10-27 11:42:47 +01:00
device-types.h cleanup: reorder commonly available devs in system to the front 2014-02-24 21:13:35 +01:00
device.h cleanup: keep using enum typedef 2015-11-09 10:22:52 +01:00