Bug#612439: Acknowledgement (lvconvert --merge breaks Logical Volumes)
Marcel Meckel
marcel at thermoman.de
Wed Feb 9 14:43:34 UTC 2011
> What snapshot targets does your kernel contain?
> (run 'dmsetup targets' and check for a line starting 'snapshot-merge')
% dmsetup targets
snapshot-origin v1.7.0
snapshot v1.7.0
striped v1.3.0
linear v1.1.0
error v1.0.1
% strings /lib/modules/$(uname -r)/kernel/drivers/md/dm-* | grep merge
blk_queue_merge_bvec
> Check your kernel message log for any related errors.
nothing in there
> Run the command with -vvvv for more detailed information about what's
> going wrong.
see attachment. i believe there is no snapshot-merge target in this kernel
version.
Marcel.
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% lvs vg0
LV VG Attr LSize Origin Snap% #Seg #Str Start SSize PE Ranges
test vg0 owi-a- 4.00m 1 1 0 4.00m /dev/loop5:0-0
test-snap vg0 swi-a- 4.00m test 0.29 1 1 0 4.00m /dev/loop5:1-1
% lvconvert -vvvv --merge vg0/test-snap
#lvmcmdline.c:1035 Processing: lvconvert -vvvv --merge vg0/test-snap
#lvmcmdline.c:1038 O_DIRECT will be used
#config/config.c:987 Setting global/locking_type to 1
#config/config.c:987 Setting global/wait_for_locks to 1
#locking/locking.c:240 File-based locking selected.
#config/config.c:964 Setting global/locking_dir to /var/lock/lvm
#activate/activate.c:361 Getting target version for snapshot
#ioctl/libdm-iface.c:1821 dm version OF [16384]
#ioctl/libdm-iface.c:1821 dm versions OF [16384]
#activate/activate.c:361 Getting target version for snapshot-origin
#ioctl/libdm-iface.c:1821 dm versions OF [16384]
#toollib.c:198 Using logical volume(s) on command line
#locking/file_locking.c:235 Locking /var/lock/lvm/V_vg0 WB
#locking/file_locking.c:141 _do_flock /var/lock/lvm/V_vg0:aux WB
#locking/file_locking.c:141 _do_flock /var/lock/lvm/V_vg0 WB
#locking/file_locking.c:51 _undo_flock /var/lock/lvm/V_vg0:aux
#device/dev-io.c:487 Opened /dev/loop0 RO
#device/dev-io.c:260 /dev/loop0: size is 0 sectors
#filters/filter.c:154 /dev/loop0: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop0
#filters/filter.c:129 /dev/cdrom1: Skipping: Unrecognised LVM device type 11
#device/dev-io.c:487 Opened /dev/root RW O_DIRECT
#device/dev-io.c:134 /dev/root: block size is 4096 bytes
#label/label.c:184 /dev/root: No label detected
#device/dev-io.c:533 Closed /dev/root
#device/dev-io.c:487 Opened /dev/vda RO
#device/dev-io.c:260 /dev/vda: size is 18874368 sectors
#device/dev-io.c:134 /dev/vda: block size is 4096 bytes
#filters/filter.c:160 /dev/vda: Skipping: Partition table signature found
#device/dev-io.c:533 Closed /dev/vda
#device/dev-io.c:487 Opened /dev/loop1 RO
#device/dev-io.c:260 /dev/loop1: size is 0 sectors
#filters/filter.c:154 /dev/loop1: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop1
#device/dev-io.c:487 Opened /dev/dm-1 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-1: block size is 4096 bytes
#label/label.c:184 /dev/dm-1: No label detected
#device/dev-io.c:533 Closed /dev/dm-1
#device/dev-io.c:487 Opened /dev/vda1 RW O_DIRECT
#device/dev-io.c:134 /dev/vda1: block size is 1024 bytes
#label/label.c:184 /dev/vda1: No label detected
#device/dev-io.c:533 Closed /dev/vda1
#device/dev-io.c:487 Opened /dev/loop2 RO
#device/dev-io.c:260 /dev/loop2: size is 0 sectors
#filters/filter.c:154 /dev/loop2: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop2
#device/dev-io.c:487 Opened /dev/dm-2 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-2: block size is 4096 bytes
#label/label.c:184 /dev/dm-2: No label detected
#device/dev-io.c:533 Closed /dev/dm-2
#device/dev-io.c:487 Opened /dev/vda2 RW O_DIRECT
#device/dev-io.c:134 /dev/vda2: block size is 4096 bytes
#label/label.c:160 /dev/vda2: lvm2 label detected
#cache/lvmcache.c:1136 lvmcache: /dev/vda2: now in VG #orphans_lvm2 (#orphans_lvm2)
#format_text/format-text.c:1137 /dev/vda2: Found metadata at 6656 size 1652 (in area at 4096 size 1044480) for vg_s16 (cAN0Mz-z3eC-6KXD-GCXt-HYli-D89G-5KEvoT)
#cache/lvmcache.c:1136 lvmcache: /dev/vda2: now in VG vg_s16 with 1 mdas
#cache/lvmcache.c:923 lvmcache: /dev/vda2: setting vg_s16 VGID to cAN0Mzz3eC6KXDGCXtHYliD89G5KEvoT
#cache/lvmcache.c:1173 lvmcache: /dev/vda2: VG vg_s16: Set creation host to han-solo.
#device/dev-io.c:533 Closed /dev/vda2
#device/dev-io.c:487 Opened /dev/loop3 RO
#device/dev-io.c:260 /dev/loop3: size is 0 sectors
#filters/filter.c:154 /dev/loop3: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop3
#device/dev-io.c:487 Opened /dev/dm-3 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-3: block size is 4096 bytes
#label/label.c:184 /dev/dm-3: No label detected
#device/dev-io.c:533 Closed /dev/dm-3
#device/dev-io.c:487 Opened /dev/loop4 RO
#device/dev-io.c:260 /dev/loop4: size is 0 sectors
#filters/filter.c:154 /dev/loop4: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop4
#device/dev-io.c:487 Opened /dev/dm-4 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-4: block size is 4096 bytes
#label/label.c:184 /dev/dm-4: No label detected
#device/dev-io.c:533 Closed /dev/dm-4
#device/dev-io.c:487 Opened /dev/loop5 RW O_DIRECT
#device/dev-io.c:134 /dev/loop5: block size is 4096 bytes
#label/label.c:160 /dev/loop5: lvm2 label detected
#cache/lvmcache.c:1136 lvmcache: /dev/loop5: now in VG #orphans_lvm2 (#orphans_lvm2)
#format_text/format-text.c:1137 /dev/loop5: Found metadata at 8192 size 1377 (in area at 4096 size 192512) for vg0 (JJeNOe-tj11-WlpA-sUQs-2mG3-739N-ciSkmj)
#cache/lvmcache.c:1136 lvmcache: /dev/loop5: now in VG vg0 with 1 mdas
#cache/lvmcache.c:923 lvmcache: /dev/loop5: setting vg0 VGID to JJeNOetj11WlpAsUQs2mG3739NciSkmj
#cache/lvmcache.c:1173 lvmcache: /dev/loop5: VG vg0: Set creation host to s16.
#device/dev-io.c:487 Opened /dev/dm-5 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-5: block size is 4096 bytes
#label/label.c:184 /dev/dm-5: No label detected
#device/dev-io.c:533 Closed /dev/dm-5
#device/dev-io.c:487 Opened /dev/loop6 RO
#device/dev-io.c:260 /dev/loop6: size is 0 sectors
#filters/filter.c:154 /dev/loop6: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop6
#device/dev-io.c:487 Opened /dev/dm-6 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-6: block size is 4096 bytes
#label/label.c:184 /dev/dm-6: No label detected
#device/dev-io.c:533 Closed /dev/dm-6
#device/dev-io.c:487 Opened /dev/loop7 RO
#device/dev-io.c:260 /dev/loop7: size is 0 sectors
#filters/filter.c:154 /dev/loop7: Skipping: Too small to hold a PV
#device/dev-io.c:533 Closed /dev/loop7
#device/dev-io.c:487 Opened /dev/dm-7 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-7: block size is 4096 bytes
#label/label.c:184 /dev/dm-7: No label detected
#device/dev-io.c:533 Closed /dev/dm-7
#device/dev-io.c:487 Opened /dev/dm-8 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-8: block size is 4096 bytes
#label/label.c:184 /dev/dm-8: No label detected
#device/dev-io.c:533 Closed /dev/dm-8
#device/dev-io.c:487 Opened /dev/dm-9 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-9: block size is 4096 bytes
#label/label.c:184 /dev/dm-9: No label detected
#device/dev-io.c:533 Closed /dev/dm-9
#device/dev-io.c:487 Opened /dev/dm-10 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-10: block size is 4096 bytes
#label/label.c:184 /dev/dm-10: No label detected
#device/dev-io.c:533 Closed /dev/dm-10
#device/dev-io.c:487 Opened /dev/dm-11 RW O_DIRECT
#device/dev-io.c:134 /dev/dm-11: block size is 4096 bytes
#label/label.c:184 /dev/dm-11: No label detected
#device/dev-io.c:533 Closed /dev/dm-11
#device/dev-io.c:487 Opened /dev/vdb RO
#device/dev-io.c:260 /dev/vdb: size is 31457280 sectors
#device/dev-io.c:134 /dev/vdb: block size is 4096 bytes
#filters/filter.c:160 /dev/vdb: Skipping: Partition table signature found
#device/dev-io.c:533 Closed /dev/vdb
#device/dev-io.c:487 Opened /dev/vdb1 RW O_DIRECT
#device/dev-io.c:134 /dev/vdb1: block size is 4096 bytes
#label/label.c:184 /dev/vdb1: No label detected
#device/dev-io.c:533 Closed /dev/vdb1
#device/dev-io.c:487 Opened /dev/vdb2 RW O_DIRECT
#device/dev-io.c:134 /dev/vdb2: block size is 4096 bytes
#label/label.c:160 /dev/vdb2: lvm2 label detected
#cache/lvmcache.c:1136 lvmcache: /dev/vdb2: now in VG #orphans_lvm2 (#orphans_lvm2)
#format_text/format-text.c:1137 /dev/vdb2: Found metadata at 33280 size 1644 (in area at 4096 size 1044480) for vg_template (j78OII-haGf-8m9l-7bNb-dS2b-uQLZ-HmNO5i)
#cache/lvmcache.c:1136 lvmcache: /dev/vdb2: now in VG vg_template with 1 mdas
#cache/lvmcache.c:923 lvmcache: /dev/vdb2: setting vg_template VGID to j78OIIhaGf8m9l7bNbdS2buQLZHmNO5i
#cache/lvmcache.c:1173 lvmcache: /dev/vdb2: VG vg_template: Set creation host to s16.
#device/dev-io.c:533 Closed /dev/vdb2
#label/label.c:270 Using cached label for /dev/loop5
#label/label.c:270 Using cached label for /dev/loop5
#format_text/format-text.c:498 Read vg0 metadata (4) from /dev/loop5 at 8192 size 1377
#metadata/pv_manip.c:296 /dev/loop5 0: 0 1: test(0:0)
#metadata/pv_manip.c:296 /dev/loop5 1: 1 1: test-snap(0:0)
#metadata/pv_manip.c:296 /dev/loop5 2: 2 5: NULL(0:0)
#locking/file_locking.c:74 Unlocking /var/lock/lvm/V_vg0
#locking/file_locking.c:51 _undo_flock /var/lock/lvm/V_vg0
#device/dev-io.c:533 Closed /dev/loop5
#locking/file_locking.c:235 Locking /var/lock/lvm/V_vg0 WB
#locking/file_locking.c:141 _do_flock /var/lock/lvm/V_vg0:aux WB
#locking/file_locking.c:141 _do_flock /var/lock/lvm/V_vg0 WB
#locking/file_locking.c:51 _undo_flock /var/lock/lvm/V_vg0:aux
#device/dev-io.c:487 Opened /dev/loop5 RW O_DIRECT
#device/dev-io.c:134 /dev/loop5: block size is 4096 bytes
#label/label.c:160 /dev/loop5: lvm2 label detected
#cache/lvmcache.c:1136 lvmcache: /dev/loop5: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mdas
#format_text/format-text.c:1137 /dev/loop5: Found metadata at 8192 size 1377 (in area at 4096 size 192512) for vg0 (JJeNOe-tj11-WlpA-sUQs-2mG3-739N-ciSkmj)
#cache/lvmcache.c:1136 lvmcache: /dev/loop5: now in VG vg0 with 1 mdas
#cache/lvmcache.c:923 lvmcache: /dev/loop5: setting vg0 VGID to JJeNOetj11WlpAsUQs2mG3739NciSkmj
#cache/lvmcache.c:1173 lvmcache: /dev/loop5: VG vg0: Set creation host to s16.
#label/label.c:270 Using cached label for /dev/loop5
#format_text/format-text.c:498 Read vg0 metadata (4) from /dev/loop5 at 8192 size 1377
#metadata/pv_manip.c:296 /dev/loop5 0: 0 1: test(0:0)
#metadata/pv_manip.c:296 /dev/loop5 1: 1 1: test-snap(0:0)
#metadata/pv_manip.c:296 /dev/loop5 2: 2 5: NULL(0:0)
#format_text/archiver.c:127 Archiving volume group "vg0" metadata (seqno 4).
#activate/dev_manager.c:236 Getting device info for vg0-test [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr OF [16384]
#activate/dev_manager.c:236 Getting device info for vg0-test--snap [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi OF [16384]
#metadata/pv_manip.c:296 /dev/loop5 0: 0 1: test(0:0)
#metadata/pv_manip.c:296 /dev/loop5 1: 1 1: test-snap(0:0)
#metadata/pv_manip.c:296 /dev/loop5 2: 2 5: NULL(0:0)
#format_text/format-text.c:590 Writing vg0 metadata to /dev/loop5 at 9728 len 1370
#format_text/format-text.c:695 Pre-Committing vg0 metadata (5) to /dev/loop5 header at 4096
#locking/file_locking.c:299 Locking LV JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr (W)
#metadata/metadata.c:3091 Finding volume group for uuid JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr
#label/label.c:160 /dev/loop5: lvm2 label detected
#cache/lvmcache.c:1136 lvmcache: /dev/loop5: now in VG #orphans_lvm2 (#orphans_lvm2) with 1 mdas
#format_text/format-text.c:1137 /dev/loop5: Found metadata at 8192 size 1377 (in area at 4096 size 192512) for vg0 (JJeNOe-tj11-WlpA-sUQs-2mG3-739N-ciSkmj)
#cache/lvmcache.c:1136 lvmcache: /dev/loop5: now in VG vg0 with 1 mdas
#cache/lvmcache.c:923 lvmcache: /dev/loop5: setting vg0 VGID to JJeNOetj11WlpAsUQs2mG3739NciSkmj
#cache/lvmcache.c:1173 lvmcache: /dev/loop5: VG vg0: Set creation host to s16.
#label/label.c:270 Using cached label for /dev/loop5
#format_text/format-text.c:498 Read vg0 metadata (4) from /dev/loop5 at 8192 size 1377
#metadata/metadata.c:3097 Found volume group "vg0"
#metadata/metadata.c:3091 Finding volume group for uuid JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr
#label/label.c:270 Using cached label for /dev/loop5
#label/label.c:270 Using cached label for /dev/loop5
#format_text/format-text.c:498 Read vg0 pre-commit metadata (5) from /dev/loop5 at 9728 size 1370
#metadata/metadata.c:3097 Found volume group "vg0"
#activate/dev_manager.c:236 Getting device info for vg0-test [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr NF [16384]
#device/dev-io.c:291 /dev/loop5: read_ahead is 256 sectors
#activate/dev_manager.c:827 Getting device info for vg0-test [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr OF [16384]
#ioctl/libdm-iface.c:1821 dm deps (253:8) OF [16384]
#ioctl/libdm-iface.c:1821 dm deps (253:10) OF [16384]
#activate/dev_manager.c:827 Getting device info for vg0-test-real [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr-real]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr-real OF [16384]
#activate/dev_manager.c:827 Getting device info for vg0-test-cow [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr-cow]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr-cow OF [16384]
#ioctl/libdm-iface.c:1821 dm info JJeNOetj11WlpAsUQs2mG3739NciSkmjFZ4y5Ee0uYlP88rk5eaWihW7oBz606Nr-cow OF [16384]
#activate/dev_manager.c:827 Getting device info for vg0-test--snap [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi OF [16384]
#ioctl/libdm-iface.c:1821 dm deps (253:9) OF [16384]
#ioctl/libdm-iface.c:1821 dm deps (253:11) OF [16384]
#activate/dev_manager.c:827 Getting device info for vg0-test--snap-real [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi-real]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi-real OF [16384]
#ioctl/libdm-iface.c:1821 dm info JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi-real OF [16384]
#activate/dev_manager.c:827 Getting device info for vg0-test--snap-cow [LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi-cow]
#ioctl/libdm-iface.c:1821 dm info LVM-JJeNOetj11WlpAsUQs2mG3739NciSkmjH4fjbHQMcNw9L3sGUral3jbyzl2w62yi-cow OF [16384]
#activate/dev_manager.c:1135 Checking kernel supports snapshot segment type for test
#activate/activate.c:361 Getting target version for snapshot-merge
#ioctl/libdm-iface.c:1821 dm versions OF [16384]
#activate/dev_manager.c:1141 Can't expand LV test: snapshot target support missing from kernel?
#activate/dev_manager.c:1277 <backtrace>
#activate/dev_manager.c:1463 <backtrace>
#activate/activate.c:586 <backtrace>
#activate/activate.c:874 <backtrace>
#locking/locking.c:389 <backtrace>
#lvconvert.c:1418 Failed to suspend origin test
#format_text/format-text.c:699 Wiping pre-committed vg0 metadata from /dev/loop5 header at 4096
#format_text/archiver.c:390 Creating volume group backup "/etc/lvm/backup/vg0" (seqno 5).
#format_text/format-text.c:888 Writing vg0 metadata to /etc/lvm/backup/.lvm_s16_1546_2124864146
#format_text/format-text.c:932 Committing vg0 metadata (5)
#format_text/format-text.c:933 Renaming /etc/lvm/backup/vg0.tmp to /etc/lvm/backup/vg0
#lvconvert.c:1483 <backtrace>
#locking/file_locking.c:74 Unlocking /var/lock/lvm/V_vg0
#locking/file_locking.c:51 _undo_flock /var/lock/lvm/V_vg0
#device/dev-io.c:533 Closed /dev/loop5
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