More info. strace http://dev.gentoo.org/~dragonheart/lvstrace.txt reveils: ioctl(9, DM_DEV_CREATE, 0x81c51c8) = -1 EBUSY in strace when fd 9 is /dev/mapper/control lvextend -vvvv -l +15000 /dev/vg/backup .... ... (searching other volumes) ... #format_text/format-text.c:320 Read vg metadata (19) from /dev/hdb3 at 44032 size 2265 #metadata/pv_manip.c:241 /dev/hdb3 0: 0 2560: NULL(0:0) #metadata/pv_manip.c:241 /dev/hdb3 1: 2560 5120: home(0:0) #metadata/pv_manip.c:241 /dev/hdb3 2: 7680 1280: NULL(0:0) #metadata/pv_manip.c:241 /dev/hdb3 3: 8960 2560: var(0:0) #metadata/pv_manip.c:241 /dev/hdb3 4: 11520 512: tmp(0:0) #metadata/pv_manip.c:241 /dev/hdb3 5: 12032 12800: media(0:0) #metadata/pv_manip.c:241 /dev/hdb3 6: 24832 12800: backup(0:0) #metadata/pv_manip.c:241 /dev/hdb3 7: 37632 277: NULL(0:0) #metadata/pv_manip.c:241 /dev/hda3 0: 0 11920: NULL(0:0) #metadata/pv_manip.c:241 /dev/hda4 0: 0 4117: usr1(0:0) #metadata/pv_manip.c:241 /dev/hda4 1: 4117 10882: NULL(0:0) #format_text/archiver.c:129 Archiving volume group "vg" metadata (seqno 19). Extending logical volume backup to 108.59 GB #metadata/pv_map.c:46 Allowing allocation on /dev/hdb3 start PE 0 length 2560 #metadata/pv_map.c:46 Allowing allocation on /dev/hdb3 start PE 7680 length 1280 #metadata/pv_map.c:46 Allowing allocation on /dev/hdb3 start PE 37632 length 277 #metadata/pv_map.c:46 Allowing allocation on /dev/hda3 start PE 0 length 11920 #metadata/pv_map.c:46 Allowing allocation on /dev/hda4 start PE 4117 length 10882 #metadata/pv_manip.c:241 /dev/hdb3 0: 0 2560: NULL(0:0) #metadata/pv_manip.c:241 /dev/hdb3 1: 2560 5120: home(0:0) #metadata/pv_manip.c:241 /dev/hdb3 2: 7680 1280: NULL(0:0) #metadata/pv_manip.c:241 /dev/hdb3 3: 8960 2560: var(0:0) #metadata/pv_manip.c:241 /dev/hdb3 4: 11520 512: tmp(0:0) #metadata/pv_manip.c:241 /dev/hdb3 5: 12032 12800: media(0:0) #metadata/pv_manip.c:241 /dev/hdb3 6: 24832 13077: backup(0:0) #metadata/pv_manip.c:241 /dev/hda3 0: 0 11920: backup(13077:0) #metadata/pv_manip.c:241 /dev/hda4 0: 0 4117: usr1(0:0) #metadata/pv_manip.c:241 /dev/hda4 1: 4117 2803: backup(24997:0) #metadata/pv_manip.c:241 /dev/hda4 2: 6920 8079: NULL(0:0) #format_text/format-text.c:414 Writing vg metadata to /dev/hda3 at 17920 len 2513 #format_text/format-text.c:414 Writing vg metadata to /dev/hda4 at 17920 len 2513 #format_text/format-text.c:414 Writing vg metadata to /dev/hdb3 at 46592 len 2513 #format_text/format-text.c:516 Pre-Committing vg metadata (20) to /dev/hda3 header at 4096 #format_text/format-text.c:516 Pre-Committing vg metadata (20) to /dev/hda4 header at 4096 #format_text/format-text.c:516 Pre-Committing vg metadata (20) to /dev/hdb3 header at 4096 #format_text/archiver.c:364 Creating volume group backup "/etc/lvm/backup/vg" (seqno 20). #format_text/format-text.c:711 Writing vg metadata to /etc/lvm/backup/.lvm_spider_31093_1641323837 #format_text/format-text.c:755 Committing vg metadata (20) #format_text/format-text.c:756 Renaming /etc/lvm/backup/vg.tmp to /etc/lvm/backup/vg #locking/file_locking.c:250 Locking LV RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE (W) #metadata/metadata.c:1171 Finding volume group for uuid RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #format_text/format-text.c:320 Read vg metadata (19) from /dev/hda3 at 15360 size 2265 #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #format_text/format-text.c:320 Read vg metadata (19) from /dev/hda4 at 15360 size 2265 #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #format_text/format-text.c:320 Read vg metadata (19) from /dev/hdb3 at 44032 size 2265 #metadata/metadata.c:1177 Found volume group "vg" #metadata/metadata.c:1171 Finding volume group for uuid RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #format_text/format-text.c:320 Read vg pre-commit metadata (20) from /dev/hda3 at 17920 size 2513 #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #format_text/format-text.c:320 Read vg pre-commit metadata (20) from /dev/hda4 at 17920 size 2513 #label/label.c:167 /dev/hdb3: lvm2 label detected #label/label.c:167 /dev/hda3: lvm2 label detected #label/label.c:167 /dev/hda4: lvm2 label detected #format_text/format-text.c:320 Read vg pre-commit metadata (20) from /dev/hdb3 at 46592 size 2513 #metadata/metadata.c:1177 Found volume group "vg" #activate/activate.c:370 Getting device info for vg-backup #ioctl/libdm-iface.c:1454 dm version O [16384] #ioctl/libdm-iface.c:1454 dm info LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE N [16384] #ioctl/libdm-iface.c:1454 dm info RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE N [16384] #ioctl/libdm-iface.c:1454 dm info vg-backup N [16384] #config/config.c:757 Setting activation/missing_stripe_filler to /dev/ioerror #activate/dev_manager.c:588 Getting device info for vg-backup [LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE] #ioctl/libdm-iface.c:1454 dm info LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE O [16384] #ioctl/libdm-iface.c:1454 dm info RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE O [16384] #ioctl/libdm-iface.c:1454 dm info vg-backup O [16384] #ioctl/libdm-iface.c:1454 dm deps (254:3) O [16384] #activate/dev_manager.c:588 Getting device info for vg-backup-real [LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE-real] #ioctl/libdm-iface.c:1454 dm info LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE-real O [16384] #ioctl/libdm-iface.c:1454 dm info RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE-real O [16384] #ioctl/libdm-iface.c:1454 dm info vg-backup-real O [16384] #activate/dev_manager.c:588 Getting device info for vg-backup-cow [LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE-cow] #ioctl/libdm-iface.c:1454 dm info LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE-cow O [16384] #ioctl/libdm-iface.c:1454 dm info RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE-cow O [16384] #ioctl/libdm-iface.c:1454 dm info vg-backup-cow O [16384] #activate/activate.c:293 Getting target version for linear #ioctl/libdm-iface.c:1454 dm versions O [16384] #activate/activate.c:293 Getting target version for striped #ioctl/libdm-iface.c:1454 dm versions O [16384] #libdm-deptree.c:1148 Creating vg-backup #ioctl/libdm-iface.c:1454 dm create vg-backup LVM-RWyOcE8FbscRWSC4k5Oo856OYtYf3mYNvlW378SXL7hdkoW6BsuvBtvIRafEqtVE N [16384] #ioctl/libdm-iface.c:1471 device-mapper: create ioctl failed: Device or resource busy #libdm-deptree.c:1493 <backtrace> #activate/dev_manager.c:993 <backtrace> #activate/activate.c:505 <backtrace> #activate/activate.c:640 <backtrace> #lvresize.c:530 Failed to suspend backup #format_text/format-text.c:520 Wiping pre-committed vg metadata from /dev/hda3 header at 4096 #format_text/format-text.c:520 Wiping pre-committed vg metadata from /dev/hda4 header at 4096 #format_text/format-text.c:520 Wiping pre-committed vg metadata from /dev/hdb3 header at 4096 #locking/file_locking.c:59 Unlocking /var/lock/lvm/V_vg #device/dev-io.c:483 Closed /dev/hda3 #device/dev-io.c:483 Closed /dev/hda4 #device/dev-io.c:483 Closed /dev/hdb3 Seems to map to kernel drivers/md/dm-ioctl.c:228 -- Daniel Black <dragonheart@gentoo.org> Gentoo Crypto/dev-embedded/Forensics/NetMon
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