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

[Paweł Sikora]

Public bug reported:

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

** Affects: pld-linux
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/795644

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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