After several tries, I managed to reproduce the problem. This time I ran lvremove -vvvv -f /dev/vg1/backup, and the output is attached. I hope you can make some sense out of it.
/dev/vg1/mongodb is striped LV in VG vg1 on PV /dev/xvdh and PV /dev/xvdi. /dev/vg1/backup is striped snapshot LV of /dev/vg1/mongodb. I hope my setup is straightforward enough - if not, let me know what other information I can provide. Regards, Oskar Liljeblad
root@mdb3:~# lvremove -vvvv -f /dev/vg1/backup #lvmcmdline.c:1055 Processing: lvremove -vvvv -f /dev/vg1/backup #lvmcmdline.c:1058 O_DIRECT will be used #libdm-config.c:789 Setting global/locking_type to 1 #libdm-config.c:789 Setting global/wait_for_locks to 1 #locking/locking.c:242 File-based locking selected. #libdm-config.c:758 Setting global/locking_dir to /run/lock/lvm #toollib.c:228 Using logical volume(s) on command line #locking/file_locking.c:236 Locking /run/lock/lvm/V_vg1 WB #locking/file_locking.c:141 _do_flock /run/lock/lvm/V_vg1:aux WB #locking/file_locking.c:141 _do_flock /run/lock/lvm/V_vg1 WB #locking/file_locking.c:51 _undo_flock /run/lock/lvm/V_vg1:aux #device/dev-cache.c:333 /dev/xvda1: Added to device cache #device/dev-cache.c:330 /dev/disk/by-path/xen-vbd-2049: Aliased to /dev/xvda1 in device cache #device/dev-cache.c:330 /dev/disk/by-uuid/f4f6befc-d80d-4017-a127-ebe1f0380ee4: Aliased to /dev/xvda1 in device cache #device/dev-cache.c:330 /dev/root: Aliased to /dev/xvda1 in device cache (preferred name) #device/dev-cache.c:333 /dev/xvdb: Added to device cache #device/dev-cache.c:330 /dev/disk/by-path/xen-vbd-2064: Aliased to /dev/xvdb in device cache #device/dev-cache.c:333 /dev/disk/by-uuid/33fe7093-3561-4890-872d-abcb59b3880f: Added to device cache #device/dev-cache.c:333 /dev/xvdb1: Added to device cache #device/dev-cache.c:330 /dev/disk/by-path/xen-vbd-2064-part1: Aliased to /dev/xvdb1 in device cache #device/dev-cache.c:330 /dev/disk/by-uuid/1718f7fb-0a10-4270-93fc-8b75ad8ed73c: Aliased to /dev/xvdb1 in device cache #device/dev-cache.c:330 /dev/xvdb2: Aliased to /dev/disk/by-uuid/33fe7093-3561-4890-872d-abcb59b3880f in device cache (preferred name) #device/dev-cache.c:330 /dev/disk/by-path/xen-vbd-2064-part2: Aliased to /dev/xvdb2 in device cache #device/dev-cache.c:319 /dev/disk/by-uuid/33fe7093-3561-4890-872d-abcb59b3880f: Already in device cache #device/dev-cache.c:333 /dev/xvdh: Added to device cache #device/dev-cache.c:330 /dev/disk/by-path/xen-vbd-2160: Aliased to /dev/xvdh in device cache #device/dev-cache.c:333 /dev/xvdi: Added to device cache #device/dev-cache.c:330 /dev/disk/by-path/xen-vbd-2176: Aliased to /dev/xvdi in device cache #device/dev-cache.c:333 /dev/dm-0: Added to device cache #device/dev-cache.c:330 /dev/disk/by-id/dm-name-vg1-mongodb: Aliased to /dev/dm-0 in device cache (preferred name) #device/dev-cache.c:330 /dev/disk/by-id/dm-uuid-LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst: Aliased to /dev/disk/by-id/dm-name-vg1-mongodb in device cache #device/dev-cache.c:330 /dev/disk/by-uuid/72165f22-3863-45fa-a5f3-6666df5b767f: Aliased to /dev/disk/by-id/dm-name-vg1-mongodb in device cache #device/dev-cache.c:330 /dev/mapper/vg1-mongodb: Aliased to /dev/disk/by-id/dm-name-vg1-mongodb in device cache (preferred name) #device/dev-cache.c:330 /dev/vg1/mongodb: Aliased to /dev/mapper/vg1-mongodb in device cache (preferred name) #device/dev-cache.c:333 /dev/dm-1: Added to device cache #device/dev-cache.c:330 /dev/disk/by-id/dm-name-vg1-backup: Aliased to /dev/dm-1 in device cache (preferred name) #device/dev-cache.c:330 /dev/disk/by-id/dm-uuid-LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU: Aliased to /dev/disk/by-id/dm-name-vg1-backup in device cache #device/dev-cache.c:319 /dev/disk/by-uuid/72165f22-3863-45fa-a5f3-6666df5b767f: Already in device cache #device/dev-cache.c:330 /dev/mapper/vg1-backup: Aliased to /dev/disk/by-id/dm-name-vg1-backup in device cache (preferred name) #device/dev-cache.c:330 /dev/vg1/backup: Aliased to /dev/mapper/vg1-backup in device cache (preferred name) #device/dev-cache.c:333 /dev/dm-2: Added to device cache #device/dev-cache.c:330 /dev/mapper/vg1-mongodb-real: Aliased to /dev/dm-2 in device cache (preferred name) #device/dev-cache.c:333 /dev/dm-3: Added to device cache #device/dev-cache.c:330 /dev/mapper/vg1-backup-cow: Aliased to /dev/dm-3 in device cache (preferred name) #ioctl/libdm-iface.c:1687 dm status (253:0) OF [16384] (*1) #device/dev-io.c:524 Opened /dev/vg1/mongodb RO O_DIRECT #device/dev-io.c:271 /dev/vg1/mongodb: size is 1046478848 sectors #device/dev-io.c:577 Closed /dev/vg1/mongodb #device/dev-io.c:271 /dev/vg1/mongodb: size is 1046478848 sectors #device/dev-io.c:524 Opened /dev/vg1/mongodb RO O_DIRECT #device/dev-io.c:137 /dev/vg1/mongodb: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/vg1/mongodb #filters/filter-composite.c:31 Using /dev/vg1/mongodb #device/dev-io.c:524 Opened /dev/vg1/mongodb RO O_DIRECT #device/dev-io.c:137 /dev/vg1/mongodb: block size is 4096 bytes #label/label.c:180 /dev/vg1/mongodb: No label detected #device/dev-io.c:577 Closed /dev/vg1/mongodb #device/dev-io.c:524 Opened /dev/root RO O_DIRECT #device/dev-io.c:271 /dev/root: size is 41943040 sectors #device/dev-io.c:577 Closed /dev/root #device/dev-io.c:271 /dev/root: size is 41943040 sectors #device/dev-io.c:524 Opened /dev/root RO O_DIRECT #device/dev-io.c:137 /dev/root: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/root #filters/filter-composite.c:31 Using /dev/root #device/dev-io.c:524 Opened /dev/root RO O_DIRECT #device/dev-io.c:137 /dev/root: block size is 4096 bytes #label/label.c:180 /dev/root: No label detected #device/dev-io.c:577 Closed /dev/root #ioctl/libdm-iface.c:1687 dm status (253:1) OF [16384] (*1) #device/dev-io.c:524 Opened /dev/vg1/backup RO O_DIRECT #device/dev-io.c:271 /dev/vg1/backup: size is 1046478848 sectors #device/dev-io.c:577 Closed /dev/vg1/backup #device/dev-io.c:271 /dev/vg1/backup: size is 1046478848 sectors #device/dev-io.c:524 Opened /dev/vg1/backup RO O_DIRECT #device/dev-io.c:137 /dev/vg1/backup: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/vg1/backup #filters/filter-composite.c:31 Using /dev/vg1/backup #device/dev-io.c:524 Opened /dev/vg1/backup RO O_DIRECT #device/dev-io.c:137 /dev/vg1/backup: block size is 4096 bytes #label/label.c:180 /dev/vg1/backup: No label detected #device/dev-io.c:577 Closed /dev/vg1/backup #ioctl/libdm-iface.c:1687 dm status (253:2) OF [16384] (*1) #activate/dev_manager.c:233 /dev/mapper/vg1-mongodb-real: Reserved internal LV device vg1/mongodb-real not usable. #filters/filter-persistent.c:300 /dev/mapper/vg1-mongodb-real: Skipping unusable device #ioctl/libdm-iface.c:1687 dm status (253:3) OF [16384] (*1) #activate/dev_manager.c:233 /dev/mapper/vg1-backup-cow: Reserved internal LV device vg1/backup-cow not usable. #filters/filter-persistent.c:300 /dev/mapper/vg1-backup-cow: Skipping unusable device #device/dev-io.c:524 Opened /dev/xvdb RO O_DIRECT #device/dev-io.c:271 /dev/xvdb: size is 880732160 sectors #device/dev-io.c:137 /dev/xvdb: block size is 4096 bytes #filters/filter.c:175 /dev/xvdb: Skipping: Partition table signature found #device/dev-io.c:577 Closed /dev/xvdb #device/dev-io.c:524 Opened /dev/xvdb1 RO O_DIRECT #device/dev-io.c:271 /dev/xvdb1: size is 62492787 sectors #device/dev-io.c:577 Closed /dev/xvdb1 #device/dev-io.c:271 /dev/xvdb1: size is 62492787 sectors #device/dev-io.c:524 Opened /dev/xvdb1 RO O_DIRECT #device/dev-io.c:137 /dev/xvdb1: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/xvdb1 #filters/filter-composite.c:31 Using /dev/xvdb1 #device/dev-io.c:524 Opened /dev/xvdb1 RO O_DIRECT #device/dev-io.c:137 /dev/xvdb1: block size is 4096 bytes #label/label.c:180 /dev/xvdb1: No label detected #device/dev-io.c:577 Closed /dev/xvdb1 #device/dev-io.c:524 Opened /dev/xvdb2 RO O_DIRECT #device/dev-io.c:271 /dev/xvdb2: size is 818239310 sectors #device/dev-io.c:577 Closed /dev/xvdb2 #device/dev-io.c:271 /dev/xvdb2: size is 818239310 sectors #device/dev-io.c:524 Opened /dev/xvdb2 RO O_DIRECT #device/dev-io.c:137 /dev/xvdb2: block size is 1024 bytes #device/dev-io.c:577 Closed /dev/xvdb2 #filters/filter-composite.c:31 Using /dev/xvdb2 #device/dev-io.c:524 Opened /dev/xvdb2 RO O_DIRECT #device/dev-io.c:137 /dev/xvdb2: block size is 1024 bytes #label/label.c:180 /dev/xvdb2: No label detected #device/dev-io.c:577 Closed /dev/xvdb2 #device/dev-io.c:524 Opened /dev/xvdh RO O_DIRECT #device/dev-io.c:271 /dev/xvdh: size is 629145600 sectors #device/dev-io.c:137 /dev/xvdh: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/xvdh #device/dev-io.c:271 /dev/xvdh: size is 629145600 sectors #device/dev-io.c:524 Opened /dev/xvdh RO O_DIRECT #device/dev-io.c:137 /dev/xvdh: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/xvdh #filters/filter-composite.c:31 Using /dev/xvdh #device/dev-io.c:524 Opened /dev/xvdh RO O_DIRECT #device/dev-io.c:137 /dev/xvdh: block size is 4096 bytes #label/label.c:156 /dev/xvdh: lvm2 label detected at sector 1 #cache/lvmcache.c:1337 lvmcache: /dev/xvdh: now in VG #orphans_lvm2 (#orphans_lvm2) with 0 mdas #format_text/format-text.c:1192 /dev/xvdh: Found metadata at 64512 size 1803 (in area at 4096 size 1044480) for vg1 (2A7z5m-vNLa-mjsu-xAaI-uoAd-ACm8-0Pc9N4) #cache/lvmcache.c:1337 lvmcache: /dev/xvdh: now in VG vg1 with 1 mdas #cache/lvmcache.c:1114 lvmcache: /dev/xvdh: setting vg1 VGID to 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4 #cache/lvmcache.c:1374 lvmcache: /dev/xvdh: VG vg1: Set creation host to mdb3. #device/dev-io.c:524 Opened /dev/xvdi RO O_DIRECT #device/dev-io.c:271 /dev/xvdi: size is 629145600 sectors #device/dev-io.c:137 /dev/xvdi: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/xvdi #device/dev-io.c:271 /dev/xvdi: size is 629145600 sectors #device/dev-io.c:524 Opened /dev/xvdi RO O_DIRECT #device/dev-io.c:137 /dev/xvdi: block size is 4096 bytes #device/dev-io.c:577 Closed /dev/xvdi #filters/filter-composite.c:31 Using /dev/xvdi #device/dev-io.c:524 Opened /dev/xvdi RO O_DIRECT #device/dev-io.c:137 /dev/xvdi: block size is 4096 bytes #label/label.c:156 /dev/xvdi: lvm2 label detected at sector 1 #cache/lvmcache.c:1337 lvmcache: /dev/xvdi: now in VG #orphans_lvm2 (#orphans_lvm2) with 0 mdas #format_text/format-text.c:1192 /dev/xvdi: Found metadata at 64512 size 1803 (in area at 4096 size 1044480) for vg1 (2A7z5m-vNLa-mjsu-xAaI-uoAd-ACm8-0Pc9N4) #cache/lvmcache.c:1337 lvmcache: /dev/xvdi: now in VG vg1 (2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4) with 1 mdas #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #metadata/vg.c:59 Allocated VG vg1 at 0x23e76a0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 metadata (38) from /dev/xvdh at 64512 size 1803 #metadata/vg.c:59 Allocated VG vg1 at 0x23ed990. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 metadata (38) from /dev/xvdi at 64512 size 1803 #metadata/vg.c:74 Freeing VG vg1 at 0x23ed990. #metadata/pv_manip.c:327 /dev/xvdh 0: 0 63872: mongodb(0:0) #metadata/pv_manip.c:327 /dev/xvdh 1: 63872 12800: backup(0:0) #metadata/pv_manip.c:327 /dev/xvdh 2: 76672 127: NULL(0:0) #metadata/pv_manip.c:327 /dev/xvdi 0: 0 63872: mongodb(0:1) #metadata/pv_manip.c:327 /dev/xvdi 1: 63872 12800: backup(0:1) #metadata/pv_manip.c:327 /dev/xvdi 2: 76672 127: NULL(0:0) #activate/dev_manager.c:285 Getting device info for vg1-backup [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU OF [16384] (*1) #format_text/archiver.c:131 Archiving volume group "vg1" metadata (seqno 38). #metadata/lv_manip.c:3255 Removing snapshot backup #metadata/lv_manip.c:3165 LV backup in VG vg1 is now visible. #metadata/pv_manip.c:327 /dev/xvdh 0: 0 63872: mongodb(0:0) #metadata/pv_manip.c:327 /dev/xvdh 1: 63872 12800: backup(0:0) #metadata/pv_manip.c:327 /dev/xvdh 2: 76672 127: NULL(0:0) #metadata/pv_manip.c:327 /dev/xvdi 0: 0 63872: mongodb(0:1) #metadata/pv_manip.c:327 /dev/xvdi 1: 63872 12800: backup(0:1) #metadata/pv_manip.c:327 /dev/xvdi 2: 76672 127: NULL(0:0) #mm/memlock.c:389 Unlock: Memlock counters: locked:0 critical:0 daemon:0 suspended:0 #device/dev-io.c:577 Closed /dev/xvdh #device/dev-io.c:524 Opened /dev/xvdh RW O_DIRECT #device/dev-io.c:137 /dev/xvdh: block size is 4096 bytes #format_text/format-text.c:632 Writing vg1 metadata to /dev/xvdh at 66560 len 1509 #device/dev-io.c:577 Closed /dev/xvdi #device/dev-io.c:524 Opened /dev/xvdi RW O_DIRECT #device/dev-io.c:137 /dev/xvdi: block size is 4096 bytes #format_text/format-text.c:632 Writing vg1 metadata to /dev/xvdi at 66560 len 1509 #format_text/format-text.c:737 Pre-Committing vg1 metadata (39) to /dev/xvdh header at 4096 #format_text/format-text.c:737 Pre-Committing vg1 metadata (39) to /dev/xvdi header at 4096 #locking/file_locking.c:315 Locking LV 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst (W) #metadata/metadata.c:3511 Finding volume group for uuid 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst #label/label.c:156 /dev/xvdh: lvm2 label detected at sector 1 #cache/lvmcache.c:1337 lvmcache: /dev/xvdh: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mdas #format_text/format-text.c:1192 /dev/xvdh: Found metadata at 64512 size 1803 (in area at 4096 size 1044480) for vg1 (2A7z5m-vNLa-mjsu-xAaI-uoAd-ACm8-0Pc9N4) #cache/lvmcache.c:1337 lvmcache: /dev/xvdh: now in VG vg1 (2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4) with 1 mdas #label/label.c:156 /dev/xvdi: lvm2 label detected at sector 1 #cache/lvmcache.c:1337 lvmcache: /dev/xvdi: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mdas #format_text/format-text.c:1192 /dev/xvdi: Found metadata at 64512 size 1803 (in area at 4096 size 1044480) for vg1 (2A7z5m-vNLa-mjsu-xAaI-uoAd-ACm8-0Pc9N4) #cache/lvmcache.c:1337 lvmcache: /dev/xvdi: now in VG vg1 (2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4) with 1 mdas #metadata/vg.c:59 Allocated VG vg1 at 0x24019b0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 metadata (38) from /dev/xvdh at 64512 size 1803 #metadata/vg.c:59 Allocated VG vg1 at 0x24059c0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 metadata (38) from /dev/xvdi at 64512 size 1803 #metadata/vg.c:74 Freeing VG vg1 at 0x24059c0. #metadata/metadata.c:3517 Found volume group "vg1" #metadata/metadata.c:3511 Finding volume group for uuid 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #metadata/vg.c:59 Allocated VG vg1 at 0x24059c0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 pre-commit metadata (39) from /dev/xvdh at 66560 size 1509 #metadata/vg.c:59 Allocated VG vg1 at 0x24099d0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 pre-commit metadata (39) from /dev/xvdi at 66560 size 1509 #metadata/vg.c:74 Freeing VG vg1 at 0x24099d0. #metadata/metadata.c:3517 Found volume group "vg1" #activate/dev_manager.c:285 Getting device info for vg1-mongodb [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst NF [16384] (*1) #device/dev-io.c:299 /dev/xvdh: read_ahead is 256 sectors #activate/dev_manager.c:1079 Getting device info for vg1-mongodb [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:0) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:2) OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-mongodb-real [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-real] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-real OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-mongodb-cow [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-cow] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-cow OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-cow OF [16384] (*1) #activate/dev_manager.c:1749 Checking kernel supports striped segment type for mongodb #activate/activate.c:471 Getting target version for linear #ioctl/libdm-iface.c:1687 dm versions OF [16384] (*1) #activate/activate.c:471 Getting target version for striped #ioctl/libdm-iface.c:1687 dm versions OF [16384] (*1) #libdm-deptree.c:2329 Loading vg1-mongodb table (253:0) #libdm-deptree.c:2273 Adding target to (253:0): 0 1046478848 striped 2 128 202:112 2048 202:128 2048 #ioctl/libdm-iface.c:1687 dm table (253:0) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm reload (253:0) NF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:1) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:3) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:2) OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-real [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-cow [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow OF [16384] (*1) #activate/dev_manager.c:1749 Checking kernel supports striped segment type for backup #libdm-deptree.c:2329 Loading vg1-backup table (253:1) #libdm-deptree.c:2273 Adding target to (253:1): 0 209715200 striped 2 128 202:112 523241472 202:128 523241472 #ioctl/libdm-iface.c:1687 dm table (253:1) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm reload (253:1) NF [16384] (*1) #libdm-deptree.c:2369 Table size changed from 1046478848 to 209715200 for vg1-backup #libdm-config.c:758 Setting dmeventd/snapshot_library to libdevmapper-event-lvm2snapshot.so #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU OF [16384] (*1) #libdevmapper-event.c:734 vg1-backup: device not registered. #activate/activate.c:1305 vg1/snapshot0 already not monitored. #mm/memlock.c:402 Entering critical section (suspending). #mm/memlock.c:378 Lock: Memlock counters: locked:0 critical:1 daemon:0 suspended:0 #mm/memlock.c:330 Locking memory #mm/memlock.c:211 mlock 876KiB 400000 - 4db000 r-xp 00000000 ca:01 110 /sbin/lvm #mm/memlock.c:211 mlock 12KiB 6db000 - 6de000 r--p 000db000 ca:01 110 /sbin/lvm #mm/memlock.c:211 mlock 12KiB 6de000 - 6e1000 rw-p 000de000 ca:01 110 /sbin/lvm #mm/memlock.c:211 mlock 128KiB 6e1000 - 701000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 10732KiB 2397000 - 2e12000 rw-p 00000000 00:00 0 [heap] #mm/memlock.c:186 mlock default filter '/libtinfo.so.' matches '7f93abcb0000-7f93abcd5000 r-xp 00000000 ca:01 49350 /lib/x86_64-linux-gnu/libtinfo.so.5.9': Skipping. #mm/memlock.c:168 mlock area unreadable 7f93abcd5000-7f93abed4000 ---p 00025000 ca:01 49350 /lib/x86_64-linux-gnu/libtinfo.so.5.9 : Skipping. #mm/memlock.c:186 mlock default filter '/libtinfo.so.' matches '7f93abed4000-7f93abed8000 r--p 00024000 ca:01 49350 /lib/x86_64-linux-gnu/libtinfo.so.5.9': Skipping. #mm/memlock.c:186 mlock default filter '/libtinfo.so.' matches '7f93abed8000-7f93abed9000 rw-p 00028000 ca:01 49350 /lib/x86_64-linux-gnu/libtinfo.so.5.9': Skipping. #mm/memlock.c:211 mlock 120KiB 7f93abed9000 - 7f93abef7000 r-xp 00000000 ca:01 49434 /lib/x86_64-linux-gnu/libselinux.so.1 #mm/memlock.c:168 mlock area unreadable 7f93abef7000-7f93ac0f6000 ---p 0001e000 ca:01 49434 /lib/x86_64-linux-gnu/libselinux.so.1 : Skipping. #mm/memlock.c:211 mlock 4KiB 7f93ac0f6000 - 7f93ac0f7000 r--p 0001d000 ca:01 49434 /lib/x86_64-linux-gnu/libselinux.so.1 #mm/memlock.c:211 mlock 4KiB 7f93ac0f7000 - 7f93ac0f8000 rw-p 0001e000 ca:01 49434 /lib/x86_64-linux-gnu/libselinux.so.1 #mm/memlock.c:211 mlock 4KiB 7f93ac0f8000 - 7f93ac0f9000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 92KiB 7f93ac0f9000 - 7f93ac110000 r-xp 00000000 ca:01 50299 /lib/x86_64-linux-gnu/libpthread-2.13.so #mm/memlock.c:168 mlock area unreadable 7f93ac110000-7f93ac30f000 ---p 00017000 ca:01 50299 /lib/x86_64-linux-gnu/libpthread-2.13.so : Skipping. #mm/memlock.c:211 mlock 4KiB 7f93ac30f000 - 7f93ac310000 r--p 00016000 ca:01 50299 /lib/x86_64-linux-gnu/libpthread-2.13.so #mm/memlock.c:211 mlock 4KiB 7f93ac310000 - 7f93ac311000 rw-p 00017000 ca:01 50299 /lib/x86_64-linux-gnu/libpthread-2.13.so #mm/memlock.c:211 mlock 16KiB 7f93ac311000 - 7f93ac315000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 1536KiB 7f93ac315000 - 7f93ac495000 r-xp 00000000 ca:01 50204 /lib/x86_64-linux-gnu/libc-2.13.so #mm/memlock.c:168 mlock area unreadable 7f93ac495000-7f93ac695000 ---p 00180000 ca:01 50204 /lib/x86_64-linux-gnu/libc-2.13.so : Skipping. #mm/memlock.c:211 mlock 16KiB 7f93ac695000 - 7f93ac699000 r--p 00180000 ca:01 50204 /lib/x86_64-linux-gnu/libc-2.13.so #mm/memlock.c:211 mlock 4KiB 7f93ac699000 - 7f93ac69a000 rw-p 00184000 ca:01 50204 /lib/x86_64-linux-gnu/libc-2.13.so #mm/memlock.c:211 mlock 20KiB 7f93ac69a000 - 7f93ac69f000 rw-p 00000000 00:00 0 #mm/memlock.c:186 mlock default filter '/libreadline.so.' matches '7f93ac69f000-7f93ac6d8000 r-xp 00000000 ca:01 51215 /lib/x86_64-linux-gnu/libreadline.so.5.2': Skipping. #mm/memlock.c:168 mlock area unreadable 7f93ac6d8000-7f93ac8d7000 ---p 00039000 ca:01 51215 /lib/x86_64-linux-gnu/libreadline.so.5.2 : Skipping. #mm/memlock.c:186 mlock default filter '/libreadline.so.' matches '7f93ac8d7000-7f93ac8df000 rw-p 00038000 ca:01 51215 /lib/x86_64-linux-gnu/libreadline.so.5.2': Skipping. #mm/memlock.c:211 mlock 4KiB 7f93ac8df000 - 7f93ac8e0000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 212KiB 7f93ac8e0000 - 7f93ac915000 r-xp 00000000 ca:01 49459 /lib/x86_64-linux-gnu/libdevmapper.so.1.02.1 #mm/memlock.c:168 mlock area unreadable 7f93ac915000-7f93acb14000 ---p 00035000 ca:01 49459 /lib/x86_64-linux-gnu/libdevmapper.so.1.02.1 : Skipping. #mm/memlock.c:211 mlock 4KiB 7f93acb14000 - 7f93acb15000 r--p 00034000 ca:01 49459 /lib/x86_64-linux-gnu/libdevmapper.so.1.02.1 #mm/memlock.c:211 mlock 12KiB 7f93acb15000 - 7f93acb18000 rw-p 00035000 ca:01 49459 /lib/x86_64-linux-gnu/libdevmapper.so.1.02.1 #mm/memlock.c:211 mlock 4KiB 7f93acb18000 - 7f93acb19000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 20KiB 7f93acb19000 - 7f93acb1e000 r-xp 00000000 ca:01 49483 /lib/x86_64-linux-gnu/libdevmapper-event.so.1.02.1 #mm/memlock.c:168 mlock area unreadable 7f93acb1e000-7f93acd1d000 ---p 00005000 ca:01 49483 /lib/x86_64-linux-gnu/libdevmapper-event.so.1.02.1 : Skipping. #mm/memlock.c:211 mlock 4KiB 7f93acd1d000 - 7f93acd1e000 r--p 00004000 ca:01 49483 /lib/x86_64-linux-gnu/libdevmapper-event.so.1.02.1 #mm/memlock.c:211 mlock 4KiB 7f93acd1e000 - 7f93acd1f000 rw-p 00005000 ca:01 49483 /lib/x86_64-linux-gnu/libdevmapper-event.so.1.02.1 #mm/memlock.c:186 mlock default filter '/libdl-' matches '7f93acd1f000-7f93acd21000 r-xp 00000000 ca:01 50276 /lib/x86_64-linux-gnu/libdl-2.13.so': Skipping. #mm/memlock.c:168 mlock area unreadable 7f93acd21000-7f93acf21000 ---p 00002000 ca:01 50276 /lib/x86_64-linux-gnu/libdl-2.13.so : Skipping. #mm/memlock.c:186 mlock default filter '/libdl-' matches '7f93acf21000-7f93acf22000 r--p 00002000 ca:01 50276 /lib/x86_64-linux-gnu/libdl-2.13.so': Skipping. #mm/memlock.c:186 mlock default filter '/libdl-' matches '7f93acf22000-7f93acf23000 rw-p 00003000 ca:01 50276 /lib/x86_64-linux-gnu/libdl-2.13.so': Skipping. #mm/memlock.c:211 mlock 28KiB 7f93acf23000 - 7f93acf2a000 r-xp 00000000 ca:01 50304 /lib/x86_64-linux-gnu/librt-2.13.so #mm/memlock.c:168 mlock area unreadable 7f93acf2a000-7f93ad129000 ---p 00007000 ca:01 50304 /lib/x86_64-linux-gnu/librt-2.13.so : Skipping. #mm/memlock.c:211 mlock 4KiB 7f93ad129000 - 7f93ad12a000 r--p 00006000 ca:01 50304 /lib/x86_64-linux-gnu/librt-2.13.so #mm/memlock.c:211 mlock 4KiB 7f93ad12a000 - 7f93ad12b000 rw-p 00007000 ca:01 50304 /lib/x86_64-linux-gnu/librt-2.13.so #mm/memlock.c:211 mlock 52KiB 7f93ad12b000 - 7f93ad138000 r-xp 00000000 ca:01 49767 /lib/x86_64-linux-gnu/libudev.so.0.13.0 #mm/memlock.c:168 mlock area unreadable 7f93ad138000-7f93ad338000 ---p 0000d000 ca:01 49767 /lib/x86_64-linux-gnu/libudev.so.0.13.0 : Skipping. #mm/memlock.c:211 mlock 4KiB 7f93ad338000 - 7f93ad339000 r--p 0000d000 ca:01 49767 /lib/x86_64-linux-gnu/libudev.so.0.13.0 #mm/memlock.c:211 mlock 4KiB 7f93ad339000 - 7f93ad33a000 rw-p 0000e000 ca:01 49767 /lib/x86_64-linux-gnu/libudev.so.0.13.0 #mm/memlock.c:211 mlock 128KiB 7f93ad33a000 - 7f93ad35a000 r-xp 00000000 ca:01 50308 /lib/x86_64-linux-gnu/ld-2.13.so #mm/memlock.c:186 mlock default filter 'gconv/gconv-modules.cache' matches '7f93ad3cf000-7f93ad3d6000 r--s 00000000 ca:01 35298 /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache': Skipping. #mm/memlock.c:186 mlock default filter 'locale/locale-archive' matches '7f93ad3d6000-7f93ad54d000 r--p 00000000 ca:01 32822 /usr/lib/locale/locale-archive': Skipping. #mm/memlock.c:211 mlock 24KiB 7f93ad54d000 - 7f93ad553000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 8KiB 7f93ad557000 - 7f93ad559000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 4KiB 7f93ad559000 - 7f93ad55a000 r--p 0001f000 ca:01 50308 /lib/x86_64-linux-gnu/ld-2.13.so #mm/memlock.c:211 mlock 4KiB 7f93ad55a000 - 7f93ad55b000 rw-p 00020000 ca:01 50308 /lib/x86_64-linux-gnu/ld-2.13.so #mm/memlock.c:211 mlock 4KiB 7f93ad55b000 - 7f93ad55c000 rw-p 00000000 00:00 0 #mm/memlock.c:211 mlock 132KiB 7ffff838f000 - 7ffff83b0000 rw-p 00000000 00:00 0 [stack] #mm/memlock.c:176 mlock ignore filter '[vdso]' matches '7ffff83ff000-7ffff8400000 r-xp 00000000 00:00 0 [vdso]': Skipping. #mm/memlock.c:176 mlock ignore filter '[vsyscall]' matches 'ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]': Skipping. #mm/memlock.c:297 Locked 14589952 bytes #activate/dev_manager.c:1079 Getting device info for vg1-mongodb [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:0) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:2) OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-mongodb-real [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-real] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-real OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-mongodb-cow [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-cow] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-cow OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4i9yDRh3s1Ji9mXPW23sygzymjCFzExst-cow OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:1) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:3) OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-real [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-cow [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info (253:0) NF [16384] (*1) #libdm-deptree.c:1312 Suspending vg1-mongodb (253:0) with device flush #ioctl/libdm-iface.c:1687 dm suspend (253:0) NFS [16384] (*1) #libdm-common.c:204 Suspended device counter increased to 1 #ioctl/libdm-iface.c:1687 dm info (253:1) NF [16384] (*1) #libdm-deptree.c:1312 Suspending vg1-backup (253:1) with device flush #ioctl/libdm-iface.c:1687 dm suspend (253:1) NFS [16384] (*1) #libdm-common.c:204 Suspended device counter increased to 2 #ioctl/libdm-iface.c:1687 dm info (253:2) NF [16384] (*1) #libdm-deptree.c:1312 Suspending vg1-mongodb-real (253:2) with device flush #ioctl/libdm-iface.c:1687 dm suspend (253:2) NFS [16384] (*1) #libdm-common.c:204 Suspended device counter increased to 3 #ioctl/libdm-iface.c:1687 dm info (253:3) NF [16384] (*1) #libdm-deptree.c:1312 Suspending vg1-backup-cow (253:3) with device flush #ioctl/libdm-iface.c:1687 dm suspend (253:3) NFS [16384] (*1) #libdm-common.c:204 Suspended device counter increased to 4 #ioctl/libdm-iface.c:1687 dm info (253:2) NF [16384] (*1) #metadata/vg.c:74 Freeing VG vg1 at 0x24059c0. #metadata/vg.c:74 Freeing VG vg1 at 0x24019b0. #format_text/format-text.c:737 Committing vg1 metadata (39) to /dev/xvdh header at 4096 #format_text/format-text.c:737 Committing vg1 metadata (39) to /dev/xvdi header at 4096 #locking/file_locking.c:297 Unlocking LV 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU #metadata/metadata.c:3511 Finding volume group for uuid 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU #label/label.c:156 /dev/xvdh: lvm2 label detected at sector 1 #cache/lvmcache.c:1337 lvmcache: /dev/xvdh: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mdas #format_text/format-text.c:1192 /dev/xvdh: Found metadata at 66560 size 1509 (in area at 4096 size 1044480) for vg1 (2A7z5m-vNLa-mjsu-xAaI-uoAd-ACm8-0Pc9N4) #cache/lvmcache.c:1337 lvmcache: /dev/xvdh: now in VG vg1 (2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4) with 1 mdas #label/label.c:156 /dev/xvdi: lvm2 label detected at sector 1 #cache/lvmcache.c:1337 lvmcache: /dev/xvdi: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mdas #format_text/format-text.c:1192 /dev/xvdi: Found metadata at 66560 size 1509 (in area at 4096 size 1044480) for vg1 (2A7z5m-vNLa-mjsu-xAaI-uoAd-ACm8-0Pc9N4) #cache/lvmcache.c:1337 lvmcache: /dev/xvdi: now in VG vg1 (2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4) with 1 mdas #metadata/vg.c:59 Allocated VG vg1 at 0x23f19a0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 metadata (39) from /dev/xvdh at 66560 size 1509 #metadata/vg.c:59 Allocated VG vg1 at 0x23f59b0. #label/label.c:266 Using cached label for /dev/xvdh #label/label.c:266 Using cached label for /dev/xvdi #format_text/format-text.c:524 Read vg1 metadata (39) from /dev/xvdi at 66560 size 1509 #metadata/vg.c:74 Freeing VG vg1 at 0x23f59b0. #metadata/metadata.c:3517 Found volume group "vg1" #activate/activate.c:1583 Resuming LV vg1/backup if active. #activate/dev_manager.c:285 Getting device info for vg1-backup [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU NF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:1) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:3) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:2) OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-real [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-cow [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow OF [16384] (*1) #activate/dev_manager.c:1749 Checking kernel supports striped segment type for backup #libdm-deptree.c:1261 Resuming vg1-backup-cow (253:3) #libdm-common.c:2023 Udev cookie 0xd4dc111 (semid 1114113) created #libdm-common.c:2043 Udev cookie 0xd4dc111 (semid 1114113) incremented to 1 #libdm-common.c:1915 Udev cookie 0xd4dc111 (semid 1114113) incremented to 2 #libdm-common.c:2156 Udev cookie 0xd4dc111 (semid 1114113) assigned to RESUME task(5) with flags DISABLE_LIBRARY_FALLBACK (0x20) #ioctl/libdm-iface.c:1687 dm resume (253:3) NF [16384] (*1) #libdm-common.c:1250 vg1-backup-cow: Stacking NODE_ADD (253,3) 0:6 0660 [trust_udev] #libdm-common.c:1260 vg1-backup-cow: Stacking NODE_READ_AHEAD 0 (flags=0) #libdm-common.c:215 Suspended device counter reduced to 3 #libdm-deptree.c:1261 Resuming vg1-mongodb-real (253:2) #libdm-common.c:1915 Udev cookie 0xd4dc111 (semid 1114113) incremented to 3 #libdm-common.c:2156 Udev cookie 0xd4dc111 (semid 1114113) assigned to RESUME task(5) with flags DISABLE_LIBRARY_FALLBACK (0x20) #ioctl/libdm-iface.c:1687 dm resume (253:2) NF [16384] (*1) #libdm-common.c:1250 vg1-mongodb-real: Stacking NODE_ADD (253,2) 0:6 0660 [trust_udev] #libdm-common.c:1260 vg1-mongodb-real: Stacking NODE_READ_AHEAD 0 (flags=0) #libdm-common.c:215 Suspended device counter reduced to 2 #libdm-deptree.c:1261 Resuming vg1-backup (253:1) #libdm-common.c:1915 Udev cookie 0xd4dc111 (semid 1114113) incremented to 4 #libdm-common.c:2156 Udev cookie 0xd4dc111 (semid 1114113) assigned to RESUME task(5) with flags DISABLE_LIBRARY_FALLBACK (0x20) #ioctl/libdm-iface.c:1687 dm resume (253:1) NF [16384] (*1) #libdm-common.c:1250 vg1-backup: Stacking NODE_ADD (253,1) 0:6 0660 [trust_udev] #libdm-common.c:1260 vg1-backup: Stacking NODE_READ_AHEAD 512 (flags=1) #libdm-common.c:215 Suspended device counter reduced to 1 #activate/dev_manager.c:1079 Getting device info for vg1-backup [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:1) OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-real [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info 2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-real OF [16384] (*1) #activate/dev_manager.c:1079 Getting device info for vg1-backup-cow [LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow] #ioctl/libdm-iface.c:1687 dm info LVM-2A7z5mvNLamjsuxAaIuoAdACm80Pc9N4jnTar3pJic4fN9jtLGEoR0SQw117iwHU-cow OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm deps (253:3) OF [16384] (*1) #ioctl/libdm-iface.c:1687 dm info (253:3) OF [16384] (*1) #libdm-deptree.c:1547 Unable to deactivate open vg1-backup-cow (253:3) #activate/dev_manager.c:2116 <backtrace> #activate/dev_manager.c:2152 <backtrace> #activate/dev_manager.c:2217 <backtrace> #activate/activate.c:875 <backtrace> #activate/activate.c:1600 <backtrace> #metadata/vg.c:74 Freeing VG vg1 at 0x23f19a0. #locking/locking.c:396 <backtrace> #locking/locking.c:466 <backtrace> #metadata/snapshot_manip.c:225 Failed to resume backup. #metadata/lv_manip.c:3258 <backtrace> #lvremove.c:30 <backtrace> #toollib.c:371 <backtrace> #mm/memlock.c:389 Unlock: Memlock counters: locked:1 critical:1 daemon:0 suspended:1 #locking/file_locking.c:74 Unlocking /run/lock/lvm/V_vg1 #locking/file_locking.c:51 _undo_flock /run/lock/lvm/V_vg1 #device/dev-io.c:577 Closed /dev/xvdh #device/dev-io.c:577 Closed /dev/xvdi #metadata/vg.c:74 Freeing VG vg1 at 0x23e76a0. libdevmapper exiting with 1 device(s) still suspended. root@mdb3:~# dmsetup resume /dev/mapper/vg1-mongodb root@mdb3:~#