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[linux-lvm] Can't create snapshot



Hello group,

I still have problems creating snapshots on my Ubuntu Linux box. Most of the time, snapshots can't be created with an strange error message. I startet the lvcreate with very verbose output, so you can see all the gory details.

+ /sbin/lvcreate -vvvv --snapshot --size 10G --name daily-snap-opt -v vg0/opt #lvmcmdline.c:850 Processing: /sbin/lvcreate -vvvv --snapshot --size 10G --name daily-snap-opt -v vg0/opt
#lvmcmdline.c:853         O_DIRECT will be used
#config/config.c:778       Setting global/locking_type to 1
#config/config.c:763       Setting global/locking_dir to /var/lock/lvm
#locking/locking.c:139       File-based locking enabled.
#lvcreate.c:355     Setting chunksize to 16 sectors.
#activate/activate.c:293       Getting target version for snapshot
#ioctl/libdm-iface.c:1566         dm version   O   [16384]
#ioctl/libdm-iface.c:1566         dm versions   O   [16384]
#activate/activate.c:293       Getting target version for snapshot-origin
#ioctl/libdm-iface.c:1566         dm versions   O   [16384]
#config/config.c:778       Setting activation/mirror_region_size to 512
#locking/file_locking.c:164       Locking /var/lock/lvm/V_vg0 WB
#lvcreate.c:494     Finding volume group "vg0"
#device/dev-io.c:389         /dev/ram0: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram0 RW
#device/dev-io.c:134         /dev/ram0: block size is 1024 bytes
#label/label.c:180       /dev/ram0: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram0
#filters/filter-sysfs.c:251         /dev/loop0: Skipping (sysfs)
#filters/filter-regex.c:185         /dev/cdrom: Skipping (regex)
#device/dev-io.c:439         Opened /dev/cciss/c0d0 RO
#device/dev-io.c:264       /dev/cciss/c0d0: size is 3906830384 sectors
#device/dev-io.c:341 WARNING: /dev/cciss/c0d0 already opened read-only #device/dev-io.c:515 /dev/cciss/c0d0: Immediate close attempt while still referenced
#device/dev-io.c:485         Closed /dev/cciss/c0d0
#device/dev-io.c:439         Opened /dev/cciss/c0d0 RW O_DIRECT
#device/dev-io.c:134         /dev/cciss/c0d0: block size is 4096 bytes
#filters/filter.c:112 /dev/cciss/c0d0: Skipping: Partition table signature found
#device/dev-io.c:485         Closed /dev/cciss/c0d0
#device/dev-io.c:439         Opened /dev/vg0/root RW O_DIRECT
#device/dev-io.c:134         /dev/vg0/root: block size is 512 bytes
#label/label.c:180       /dev/vg0/root: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/vg0/root
#device/dev-io.c:389         /dev/ram1: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram1 RW
#device/dev-io.c:134         /dev/ram1: block size is 1024 bytes
#label/label.c:180       /dev/ram1: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram1
#device/dev-io.c:439         Opened /dev/cciss/c0d0p1 RW O_DIRECT
#device/dev-io.c:134         /dev/cciss/c0d0p1: block size is 1024 bytes
#label/label.c:180       /dev/cciss/c0d0p1: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/cciss/c0d0p1
#device/dev-io.c:389         /dev/ram2: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram2 RW
#device/dev-io.c:134         /dev/ram2: block size is 1024 bytes
#label/label.c:180       /dev/ram2: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram2
#device/dev-io.c:439         Opened /dev/cciss/c0d0p2 RW O_DIRECT
#device/dev-io.c:134         /dev/cciss/c0d0p2: block size is 4096 bytes
#label/label.c:180       /dev/cciss/c0d0p2: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/cciss/c0d0p2
#device/dev-io.c:439         Opened /dev/vg0/home RW O_DIRECT
#device/dev-io.c:134         /dev/vg0/home: block size is 512 bytes
#label/label.c:180       /dev/vg0/home: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/vg0/home
#device/dev-io.c:389         /dev/ram3: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram3 RW
#device/dev-io.c:134         /dev/ram3: block size is 1024 bytes
#label/label.c:180       /dev/ram3: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram3
#device/dev-io.c:439         Opened /dev/cciss/c0d0p3 RW O_DIRECT
#device/dev-io.c:134         /dev/cciss/c0d0p3: block size is 512 bytes
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#cache/lvmcache.c:651         lvmcache: /dev/cciss/c0d0p3: now orphaned
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 31232 size 1790 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo)
#cache/lvmcache.c:651         lvmcache: /dev/cciss/c0d0p3: now in VG vg0
#cache/lvmcache.c:465 lvmcache: /dev/cciss/c0d0p3: setting vg0 VGID to Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBo #cache/lvmcache.c:686 lvmcache: /dev/cciss/c0d0p3: VG vg0: Set creation host to konrad.
#device/dev-io.c:439         Opened /dev/vg0/opt RW O_DIRECT
#device/dev-io.c:134         /dev/vg0/opt: block size is 512 bytes
#label/label.c:180       /dev/vg0/opt: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/vg0/opt
#device/dev-io.c:389         /dev/ram4: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram4 RW
#device/dev-io.c:134         /dev/ram4: block size is 1024 bytes
#label/label.c:180       /dev/ram4: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram4
#device/dev-io.c:389         /dev/ram5: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram5 RW
#device/dev-io.c:134         /dev/ram5: block size is 1024 bytes
#label/label.c:180       /dev/ram5: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram5
#device/dev-io.c:389         /dev/ram6: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram6 RW
#device/dev-io.c:134         /dev/ram6: block size is 1024 bytes
#label/label.c:180       /dev/ram6: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram6
#device/dev-io.c:389         /dev/ram7: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram7 RW
#device/dev-io.c:134         /dev/ram7: block size is 1024 bytes
#label/label.c:180       /dev/ram7: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram7
#device/dev-io.c:389         /dev/ram8: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram8 RW
#device/dev-io.c:134         /dev/ram8: block size is 1024 bytes
#label/label.c:180       /dev/ram8: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram8
#device/dev-io.c:389         /dev/ram9: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram9 RW
#device/dev-io.c:134         /dev/ram9: block size is 1024 bytes
#label/label.c:180       /dev/ram9: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram9
#device/dev-io.c:389         /dev/ram10: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram10 RW
#device/dev-io.c:134         /dev/ram10: block size is 1024 bytes
#label/label.c:180       /dev/ram10: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram10
#device/dev-io.c:439         Opened /dev/mapper/vg0-home-real RW O_DIRECT
#device/dev-io.c:134 /dev/mapper/vg0-home-real: block size is 4096 bytes
#label/label.c:180       /dev/mapper/vg0-home-real: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/mapper/vg0-home-real
#device/dev-io.c:389         /dev/ram11: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram11 RW
#device/dev-io.c:134         /dev/ram11: block size is 1024 bytes
#label/label.c:180       /dev/ram11: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram11
#device/dev-io.c:439 Opened /dev/mapper/vg0-daily--snap--home-cow RW O_DIRECT #device/dev-io.c:134 /dev/mapper/vg0-daily--snap--home-cow: block size is 4096 bytes #label/label.c:180 /dev/mapper/vg0-daily--snap--home-cow: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/mapper/vg0-daily--snap--home-cow
#device/dev-io.c:389         /dev/ram12: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram12 RW
#device/dev-io.c:134         /dev/ram12: block size is 1024 bytes
#label/label.c:180       /dev/ram12: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram12
#device/dev-io.c:439         Opened /dev/vg0/daily-snap-home RW O_DIRECT
#device/dev-io.c:134 /dev/vg0/daily-snap-home: block size is 512 bytes
#label/label.c:180       /dev/vg0/daily-snap-home: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/vg0/daily-snap-home
#device/dev-io.c:389         /dev/ram13: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram13 RW
#device/dev-io.c:134         /dev/ram13: block size is 1024 bytes
#label/label.c:180       /dev/ram13: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram13
#device/dev-io.c:389         /dev/ram14: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram14 RW
#device/dev-io.c:134         /dev/ram14: block size is 1024 bytes
#label/label.c:180       /dev/ram14: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram14
#device/dev-io.c:389         /dev/ram15: Not using O_DIRECT
#device/dev-io.c:439         Opened /dev/ram15 RW
#device/dev-io.c:134         /dev/ram15: block size is 1024 bytes
#label/label.c:180       /dev/ram15: No label detected
#label/label.c:278         <backtrace>
#device/dev-io.c:485         Closed /dev/ram15
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 31232 size 1790 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo)
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 31232 size 1790 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo) #format_text/format-text.c:323 Read vg0 metadata (337) from /dev/cciss/c0d0p3 at 31232 size 1790 #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 0: 0 2560: root(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 1: 2560 25600: home(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 2: 28160 25600: opt(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 3: 53760 209920: NULL(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 4: 263680 2560: daily-snap-home(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 5: 266240 208736: NULL(0:0) #format_text/archiver.c:129 Archiving volume group "vg0" metadata (seqno 337).
#metadata/lv_manip.c:1279     Creating logical volume daily-snap-opt
#metadata/pv_map.c:46 Allowing allocation on /dev/cciss/c0d0p3 start PE 53760 length 209920 #metadata/pv_map.c:46 Allowing allocation on /dev/cciss/c0d0p3 start PE 266240 length 208736 #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 0: 0 2560: root(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 1: 2560 25600: home(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 2: 28160 25600: opt(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 3: 53760 2560: daily-snap-opt(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 4: 56320 207360: NULL(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 5: 263680 2560: daily-snap-home(0:0) #metadata/pv_manip.c:241 /dev/cciss/c0d0p3 6: 266240 208736: NULL(0:0) #format_text/format-text.c:417 Writing vg0 metadata to /dev/cciss/c0d0p3 at 33280 len 2035 #format_text/format-text.c:519 Pre-Committing vg0 metadata (338) to /dev/cciss/c0d0p3 header at 4096 #format_text/archiver.c:364 Creating volume group backup "/etc/lvm/backup/vg0" (seqno 338). #format_text/format-text.c:714 Writing vg0 metadata to /etc/lvm/backup/.lvm_konrad_21005_2140062144
#format_text/format-text.c:758         Committing vg0 metadata (338)
#format_text/format-text.c:759 Renaming /etc/lvm/backup/vg0.tmp to /etc/lvm/backup/vg0 #format_text/format-text.c:519 Committing vg0 metadata (338) to /dev/cciss/c0d0p3 header at 4096 #locking/file_locking.c:247 Locking LV Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C (R) #metadata/metadata.c:1202 Finding volume group for uuid Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 33280 size 2035 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo)
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 33280 size 2035 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo) #format_text/format-text.c:323 Read vg0 metadata (338) from /dev/cciss/c0d0p3 at 33280 size 2035
#metadata/metadata.c:1208     Found volume group "vg0"
#activate/activate.c:370 Getting device info for vg0-daily--snap--opt #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C N [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C N [16384]
#ioctl/libdm-iface.c:1566         dm info vg0-daily--snap--opt  N   [16384]
#mm/memlock.c:99       Locking memory
#mm/memlock.c:130         memlock_count inc to 1
#config/config.c:763 Setting activation/missing_stripe_filler to /dev/ioerror #activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C O [16384]
#ioctl/libdm-iface.c:1566         dm info vg0-daily--snap--opt  O   [16384]
#activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt-real [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-real] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-real O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-real O [16384] #ioctl/libdm-iface.c:1566 dm info vg0-daily--snap--opt-real O [16384] #activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt-cow [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-cow] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-cow O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-cow O [16384] #ioctl/libdm-iface.c:1566 dm info vg0-daily--snap--opt-cow O [16384] #activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt_mlog [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-_mlog] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-_mlog O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-_mlog O [16384] #ioctl/libdm-iface.c:1566 dm info vg0-daily--snap--opt_mlog O [16384]
#activate/activate.c:293       Getting target version for linear
#ioctl/libdm-iface.c:1566         dm versions   O   [16384]
#activate/activate.c:293       Getting target version for striped
#ioctl/libdm-iface.c:1566         dm versions   O   [16384]
#libdm-deptree.c:1167     Creating vg0-daily--snap--opt
#ioctl/libdm-iface.c:1566 dm create vg0-daily--snap--opt LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C N [16384]
#libdm-deptree.c:1447     Loading vg0-daily--snap--opt table
#libdm-deptree.c:1398 Adding target: 0 20971520 linear 104:3 440402304
#ioctl/libdm-iface.c:1566         dm table   (254:1) O   [16384]
#ioctl/libdm-iface.c:1566         dm reload   (254:1) N   [16384]
#libdm-deptree.c:900     Resuming vg0-daily--snap--opt (254:1)
#ioctl/libdm-iface.c:1566         dm resume   (254:1) N   [16384]
#activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C O [16384]
#ioctl/libdm-iface.c:1566         dm deps   (254:1) O   [16384]
#activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt-real [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-real] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-real O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-real O [16384] #ioctl/libdm-iface.c:1566 dm info vg0-daily--snap--opt-real O [16384] #activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt-cow [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-cow] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-cow O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-cow O [16384] #ioctl/libdm-iface.c:1566 dm info vg0-daily--snap--opt-cow O [16384] #activate/dev_manager.c:589 Getting device info for vg0-daily--snap--opt_mlog [LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-_mlog] #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-_mlog O [16384] #ioctl/libdm-iface.c:1566 dm info Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C-_mlog O [16384] #ioctl/libdm-iface.c:1566 dm info vg0-daily--snap--opt_mlog O [16384]
#mm/memlock.c:118       Unlocking memory
#mm/memlock.c:137         memlock_count dec to 0
#activate/fs.c:172 Linking /dev/vg0/daily-snap-opt..tmp -> /dev/mapper/vg0-daily--snap--opt #activate/fs.c:185 Installing symlink /dev/vg0/daily-snap-opt..tmp as /dev/vg0/daily-snap-opt
#activate/activate.c:863         <backtrace>
#toollib.c:1144     Clearing start of logical volume "daily-snap-opt"
#device/dev-cache.c:225 /dev/vg0/daily-snap-opt: Added to device cache
#device/dev-io.c:439         Opened /dev/vg0/daily-snap-opt RW O_DIRECT
#device/dev-io.c:623 Wiping /dev/vg0/daily-snap-opt at sector 0 length 8 sectors #device/dev-io.c:134 /dev/vg0/daily-snap-opt: block size is 4096 bytes
#device/dev-io.c:485         Closed /dev/vg0/daily-snap-opt
#locking/file_locking.c:242 Locking LV Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C (NL) #metadata/metadata.c:1202 Finding volume group for uuid Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 33280 size 2035 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo)
#label/label.c:158       /dev/cciss/c0d0p3: lvm2 label detected
#format_text/format-text.c:954 /dev/cciss/c0d0p3: Found metadata at 33280 size 2035 for vg0 (Lw0OiY-teNf-jRuy-Ck2s-mqv7-A4BL-8EIzBo) #format_text/format-text.c:323 Read vg0 metadata (338) from /dev/cciss/c0d0p3 at 33280 size 2035
#metadata/metadata.c:1208     Found volume group "vg0"
#activate/activate.c:370 Getting device info for vg0-daily--snap--opt #ioctl/libdm-iface.c:1566 dm info LVM-Lw0OiYteNfjRuyCk2smqv7A4BL8EIzBotGlkGIQrbNTODCMAHKFxb5si5SAfIn0C O [16384]
#activate/activate.c:762   LV vg0/daily-snap-opt in use: not deactivating
#lvcreate.c:772   Couldn't deactivate new snapshot.
#lvcreate.c:834         <backtrace>
#locking/file_locking.c:59       Unlocking /var/lock/lvm/V_vg0
#device/dev-io.c:485         Closed /dev/cciss/c0d0p3


I don't have an idea why "deactivating" of the snapshot wont work and what this for.

I'm using Kernel 2.6.20-16-server

dmsetup -v version
Library version:   1.02.08 (2006-07-17)
Driver version:    4.11.0



Any hints?

thanks in advance

--

Falko Zurell
Head of Application Management



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