[Bug 795644] Re: lvm2: event registration failed / snapshot segment monitoring function failed.

[Bartek Radwan]

Confirmed with lvm2-2.02.84-2.i686 and device-mapper-2.02.84-2.i686
(th).

Attached patch works for me, think it's some paths issue which should be
fixed somehow in  .spec.


** Patch added: "snapshot_library_path.patch"
   https://bugs.launchpad.net/pld-linux/+bug/795644/+attachment/2541373/+files/snapshot_library_path.patch

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Title:
  lvm2: event registration failed / snapshot segment monitoring function
  failed.

Status in PLD Linux Distribution:
  New

Bug description:
  during playing with lvm snapshots i've discovered following issue:

  $ lvcreate -s -n lv_backup -l 100%FREE /dev/vg_home/lv_services
    Unable to find dmeventd.
    vg_home-lv_backup: event registration failed: No such process
    vg_home/snapshot0: snapshot segment monitoring function failed.
    Logical volume "lv_backup" created

  ... and the snapshot works pretty fine.

  with manually started dmeventd i'm getting:

  $ lvcreate -s -n lv_backup -l 100%FREE /dev/vg_home/lv_services
    vg_home-lv_backup: event registration failed: 23079:3 libdevmapper-event-lvm2snapshot.so dlopen failed: libdevmapper-event-lvm2snapshot.so: cannot open shared object file: No such file or directory
    vg_home/snapshot0: snapshot segment monitoring function failed.
    Logical volume "lv_backup" created

  but the device-mapper-2.02.84 contains such files:

  /usr/lib64/device-mapper
  /usr/lib64/device-mapper/libdevmapper-event-lvm2mirror.so
  /usr/lib64/device-mapper/libdevmapper-event-lvm2snapshot.so

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