Hi, I have a recent problem with a volume group from where I can no longer delete snapshots. # vgdisplay --- Volume group --- VG Name vg01 System ID Format lvm2 Metadata Areas 6 Metadata Sequence No 670 VG Access read/write VG Status resizable MAX LV 0 Cur LV 65 Open LV 34 Max PV 0 Cur PV 6 Act PV 6 VG Size 576.79 GB PE Size 4.00 MB Total PE 147659 Alloc PE / Size 117264 / 458.06 GB Free PE / Size 30395 / 118.73 GB VG UUID zDVNh2-LhS0-5EJs-jiZy-87Oy-znmZ-IqfpHr Last thing I did two weeks ago was to add a logical volume and a snapshot to this logical volume. ( so I went from 63 logical volumes to 65 ) # lvscan | fgrep Original | wc -l 31 # lvscan | fgrep Snapshot | wc -l 31 # lvscan | egrep -v "Original|Snapshot" | wc -l 3 I have 31 LVs with each a snapshot and 3 normal LVs. // Trying to remove a snapshot # lvremove -ff /dev/vg01/Sproduct device-mapper ioctl cmd 9 failed: Cannot allocate memory Couldn't load device 'vg01-Sproduct'. Unable to deactivate logical volume "Sproduct" # dmesg | tail -3 ReiserFS: dm-125: Using r5 hash to sort names device-mapper: Could not create kcopyd client device-mapper: error adding target to table // Here lvremove of an other snapshot LV wirh -vvv debugging switches # lvremove -vvvff /dev/vg01/Smail1 Processing: lvremove -vvvff /dev/vg01/Smail1 O_DIRECT will be used Setting global/locking_type to 1 Setting global/locking_dir to /var/lock/lvm File-based locking enabled. Using logical volume(s) on command line Locking /var/lock/lvm/V_vg01 WB Opened /dev/hda1 RW /dev/hda1: block size is 4096 bytes /dev/hda1: No label detected Opened /dev/hde1 RW /dev/hde1: block size is 512 bytes /dev/hde1: lvm2 label detected lvmcache: /dev/hde1 now orphaned lvmcache: /dev/hde1 now in VG vg01 Opened /dev/hdg1 RW /dev/hdg1: block size is 1024 bytes /dev/hdg1: lvm2 label detected lvmcache: /dev/hdg1 now orphaned lvmcache: /dev/hdg1 now in VG vg01 Opened /dev/hda2 RW /dev/hda2: block size is 4096 bytes /dev/hda2: No label detected Opened /dev/hda3 RW /dev/hda3: block size is 512 bytes /dev/hda3: No label detected Opened /dev/hda4 RW /dev/hda4: block size is 2048 bytes /dev/hda4: lvm2 label detected lvmcache: /dev/hda4 now orphaned lvmcache: /dev/hda4 now in VG vg01 Opened /dev/hdb1 RW /dev/hdb1: block size is 512 bytes /dev/hdb1: lvm2 label detected lvmcache: /dev/hdb1 now orphaned lvmcache: /dev/hdb1 now in VG vg01 Opened /dev/hdf1 RW /dev/hdf1: block size is 512 bytes /dev/hdf1: lvm2 label detected lvmcache: /dev/hdf1 now orphaned lvmcache: /dev/hdf1 now in VG vg01 Opened /dev/hdh1 RW /dev/hdh1: block size is 512 bytes /dev/hdh1: lvm2 label detected lvmcache: /dev/hdh1 now orphaned lvmcache: /dev/hdh1 now in VG vg01 /dev/hde1: lvm2 label detected /dev/hdg1: lvm2 label detected /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hde1 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdg1 at 52736 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hda4 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdb1 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdf1 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdh1 at 186880 size 25011 Setting activation/missing_stripe_filler to /dev/ioerror Getting device info for vg01-Smail1 dm version O dm info zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6 O Archiving volume group "vg01" metadata. Locking LV zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6 (NL) Finding volume group for uuid zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6 /dev/hde1: lvm2 label detected /dev/hdg1: lvm2 label detected /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hde1 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdg1 at 52736 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hda4 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdb1 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdf1 at 186880 size 25011 /dev/hda4: lvm2 label detected /dev/hdb1: lvm2 label detected /dev/hde1: lvm2 label detected /dev/hdf1: lvm2 label detected /dev/hdh1: lvm2 label detected /dev/hdg1: lvm2 label detected Read vg01 metadata (670) from /dev/hdh1 at 186880 size 25011 Found volume group "vg01" Getting device info for vg01-Smail1 dm info zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6 O Locking memory memlock_count inc to 1 dm names O Found existing layer 'vg01-Stomcatp' Getting device info for vg01-Stomcatp dm info vg01-Stomcatp N Found existing layer 'vg01-polyc' Getting device info for vg01-polyc dm info vg01-polyc N Found existing layer 'vg01-c4' Getting device info for vg01-c4 dm info vg01-c4 N Found existing layer 'vg01-Soraprod-cow' Getting device info for vg01-Soraprod-cow dm info vg01-Soraprod-cow N Found existing layer 'vg01-tomcatp-real' Getting device info for vg01-tomcatp-real dm info vg01-tomcatp-real N Found existing layer 'vg01-antivir-real' Getting device info for vg01-antivir-real dm info vg01-antivir-real N Found existing layer 'vg01-sasi-real' Getting device info for vg01-sasi-real dm info vg01-sasi-real N Found existing layer 'vg01-c3-real' Getting device info for vg01-c3-real dm info vg01-c3-real N Found existing layer 'vg01-ecole01-real' Getting device info for vg01-ecole01-real dm info vg01-ecole01-real N Found existing layer 'vg01-saprod-real' Getting device info for vg01-saprod-real dm info vg01-saprod-real N Found existing layer 'vg01-sasi' Getting device info for vg01-sasi dm info vg01-sasi N Found existing layer 'vg01-c3' Getting device info for vg01-c3 dm info vg01-c3 N Found existing layer 'vg01-Smail3-cow' Getting device info for vg01-Smail3-cow dm info vg01-Smail3-cow N Found existing layer 'vg01-websv01-real' Getting device info for vg01-websv01-real dm info vg01-websv01-real N Found existing layer 'vg01-websv02' Getting device info for vg01-websv02 dm info vg01-websv02 N Found existing layer 'vg01-Smail1' Getting device info for vg01-Smail1 dm info vg01-Smail1 N Found existing layer 'vg01-Swebsv02' Getting device info for vg01-Swebsv02 dm info vg01-Swebsv02 N Found existing layer 'vg01-adsm' Getting device info for vg01-adsm dm info vg01-adsm N Found existing layer 'vg01-Stomcatp-cow' Getting device info for vg01-Stomcatp-cow dm info vg01-Stomcatp-cow N Found existing layer 'vg01-releve' Getting device info for vg01-releve dm info vg01-releve N Found existing layer 'vg01-oratest-real' Getting device info for vg01-oratest-real dm info vg01-oratest-real N Found existing layer 'vg01-c2' Getting device info for vg01-c2 dm info vg01-c2 N Found existing layer 'vg01-Ssmtp' Getting device info for vg01-Ssmtp dm info vg01-Ssmtp N Found existing layer 'vg01-websv01' Getting device info for vg01-websv01 dm info vg01-websv01 N Found existing layer 'vg01-Sadp' Getting device info for vg01-Sadp dm info vg01-Sadp N Found existing layer 'vg01-adp-real' Getting device info for vg01-adp-real dm info vg01-adp-real N Found existing layer 'vg01-Santispm-cow' Getting device info for vg01-Santispm-cow dm info vg01-Santispm-cow N Found existing layer 'vg01-Swebsv01' Getting device info for vg01-Swebsv01 dm info vg01-Swebsv01 N Found existing layer 'vg01-mail1-real' Getting device info for vg01-mail1-real dm info vg01-mail1-real N Found existing layer 'vg01-Sadsm-cow' Getting device info for vg01-Sadsm-cow dm info vg01-Sadsm-cow N Found existing layer 'vg01-polyc-real' Getting device info for vg01-polyc-real dm info vg01-polyc-real N Found existing layer 'vg01-c4-real' Getting device info for vg01-c4-real dm info vg01-c4-real N Found existing layer 'vg01-Sproduct-cow' Getting device info for vg01-Sproduct-cow dm info vg01-Sproduct-cow N Found existing layer 'vg01-websv02-real' Getting device info for vg01-websv02-real dm info vg01-websv02-real N Found existing layer 'vg01-Sdetruit-cow' Getting device info for vg01-Sdetruit-cow dm info vg01-Sdetruit-cow N Found existing layer 'vg01-service' Getting device info for vg01-service dm info vg01-service N Found existing layer 'vg01-vpn01' Getting device info for vg01-vpn01 dm info vg01-vpn01 N Found existing layer 'vg01-mail3' Getting device info for vg01-mail3 dm info vg01-mail3 N Found existing layer 'vg01-Sservice' Getting device info for vg01-Sservice dm info vg01-Sservice N Found existing layer 'vg01-service-real' Getting device info for vg01-service-real dm info vg01-service-real N Found existing layer 'vg01-vpn01-real' Getting device info for vg01-vpn01-real dm info vg01-vpn01-real N Found existing layer 'vg01-product' Getting device info for vg01-product dm info vg01-product N Found existing layer 'vg01-Sproduct' Getting device info for vg01-Sproduct dm info vg01-Sproduct N Found existing layer 'vg01-Svpn01-cow' Getting device info for vg01-Svpn01-cow dm info vg01-Svpn01-cow N Found existing layer 'vg01-Swebsv01-cow' Getting device info for vg01-Swebsv01-cow dm info vg01-Swebsv01-cow N Found existing layer 'vg01-backup' Getting device info for vg01-backup dm info vg01-backup N Found existing layer 'vg01-oratest' Getting device info for vg01-oratest dm info vg01-oratest N Found existing layer 'vg01-Ssage' Getting device info for vg01-Ssage dm info vg01-Ssage N Found existing layer 'vg01-Soratest' Getting device info for vg01-Soratest dm info vg01-Soratest N Found existing layer 'vg01-Ssaprod' Getting device info for vg01-Ssaprod dm info vg01-Ssaprod N Found existing layer 'vg01-Swww41' Getting device info for vg01-Swww41 dm info vg01-Swww41 N Found existing layer 'vg01-mail1' Getting device info for vg01-mail1 dm info vg01-mail1 N Found existing layer 'vg01-mail3-real' Getting device info for vg01-mail3-real dm info vg01-mail3-real N Found existing layer 'vg01-slack' Getting device info for vg01-slack dm info vg01-slack N Found existing layer 'vg01-detruit-real' Getting device info for vg01-detruit-real dm info vg01-detruit-real N Found existing layer 'vg01-smtp' Getting device info for vg01-smtp dm info vg01-smtp N Found existing layer 'vg01-antispm' Getting device info for vg01-antispm dm info vg01-antispm N Found existing layer 'vg01-Swebsv02-cow' Getting device info for vg01-Swebsv02-cow dm info vg01-Swebsv02-cow N Found existing layer 'vg01-antivir' Getting device info for vg01-antivir dm info vg01-antivir N Found existing layer 'vg01-Santispm' Getting device info for vg01-Santispm dm info vg01-Santispm N Found existing layer 'vg01-Ssage-cow' Getting device info for vg01-Ssage-cow dm info vg01-Ssage-cow N Found existing layer 'vg01-Soratest-cow' Getting device info for vg01-Soratest-cow dm info vg01-Soratest-cow N Found existing layer 'vg01-smtp-real' Getting device info for vg01-smtp-real dm info vg01-smtp-real N Found existing layer 'vg01-Santivir' Getting device info for vg01-Santivir dm info vg01-Santivir N Found existing layer 'vg01-Secole01-cow' Getting device info for vg01-Secole01-cow dm info vg01-Secole01-cow N Found existing layer 'vg01-Spolyc-cow' Getting device info for vg01-Spolyc-cow dm info vg01-Spolyc-cow N Found existing layer 'vg01-Slock-cow' Getting device info for vg01-Slock-cow dm info vg01-Slock-cow N Found existing layer 'vg01-Sc4' Getting device info for vg01-Sc4 dm info vg01-Sc4 N Found existing layer 'vg01-adsm-real' Getting device info for vg01-adsm-real dm info vg01-adsm-real N Found existing layer 'vg01-Sadp-cow' Getting device info for vg01-Sadp-cow dm info vg01-Sadp-cow N Found existing layer 'vg01-bernard-real' Getting device info for vg01-bernard-real dm info vg01-bernard-real N Found existing layer 'vg01-Swww41-cow' Getting device info for vg01-Swww41-cow dm info vg01-Swww41-cow N Found existing layer 'vg01-tomcatt-real' Getting device info for vg01-tomcatt-real dm info vg01-tomcatt-real N Found existing layer 'vg01-oraprod' Getting device info for vg01-oraprod dm info vg01-oraprod N Found existing layer 'vg01-Scourriel-cow' Getting device info for vg01-Scourriel-cow dm info vg01-Scourriel-cow N Found existing layer 'vg01-Soraprod' Getting device info for vg01-Soraprod dm info vg01-Soraprod N Found existing layer 'vg01-Sc2-cow' Getting device info for vg01-Sc2-cow dm info vg01-Sc2-cow N Found existing layer 'vg01-ecole01' Getting device info for vg01-ecole01 dm info vg01-ecole01 N Found existing layer 'vg01-saprod' Getting device info for vg01-saprod dm info vg01-saprod N Found existing layer 'vg01-Sc3' Getting device info for vg01-Sc3 dm info vg01-Sc3 N Found existing layer 'vg01-product-real' Getting device info for vg01-product-real dm info vg01-product-real N Found existing layer 'vg01-Secole01' Getting device info for vg01-Secole01 dm info vg01-Secole01 N Found existing layer 'vg01-Spolyc' Getting device info for vg01-Spolyc dm info vg01-Spolyc N Found existing layer 'vg01-Slock' Getting device info for vg01-Slock dm info vg01-Slock N Found existing layer 'vg01-bernard' Getting device info for vg01-bernard dm info vg01-bernard N Found existing layer 'vg01-tomcatt' Getting device info for vg01-tomcatt dm info vg01-tomcatt N Found existing layer 'vg01-Sbernard' Getting device info for vg01-Sbernard dm info vg01-Sbernard N Found existing layer 'vg01-Stomcatt' Getting device info for vg01-Stomcatt dm info vg01-Stomcatt N Found existing layer 'vg01-Scourriel' Getting device info for vg01-Scourriel dm info vg01-Scourriel N Found existing layer 'vg01-Sservice-cow' Getting device info for vg01-Sservice-cow dm info vg01-Sservice-cow N Found existing layer 'vg01-sage' Getting device info for vg01-sage dm info vg01-sage N Found existing layer 'vg01-Sc2' Getting device info for vg01-Sc2 dm info vg01-Sc2 N Found existing layer 'vg01-rsync' Getting device info for vg01-rsync dm info vg01-rsync N Found existing layer 'vg01-oraprod-real' Getting device info for vg01-oraprod-real dm info vg01-oraprod-real N Found existing layer 'vg01-Ssasi' Getting device info for vg01-Ssasi dm info vg01-Ssasi N Found existing layer 'vg01-Smail1-cow' Getting device info for vg01-Smail1-cow dm info vg01-Smail1-cow N Found existing layer 'vg01-courriel' Getting device info for vg01-courriel dm info vg01-courriel N Found existing layer 'vg01-Sc3-cow' Getting device info for vg01-Sc3-cow dm info vg01-Sc3-cow N Found existing layer 'vg01-courriel-real' Getting device info for vg01-courriel-real dm info vg01-courriel-real N Found existing layer 'vg01-www41' Getting device info for vg01-www41 dm info vg01-www41 N Found existing layer 'vg01-Sadsm' Getting device info for vg01-Sadsm dm info vg01-Sadsm N Found existing layer 'vg01-charles' Getting device info for vg01-charles dm info vg01-charles N Found existing layer 'vg01-Scharles' Getting device info for vg01-Scharles dm info vg01-Scharles N Found existing layer 'vg01-Ssmtp-cow' Getting device info for vg01-Ssmtp-cow dm info vg01-Ssmtp-cow N Found existing layer 'vg01-Ssaprod-cow' Getting device info for vg01-Ssaprod-cow dm info vg01-Ssaprod-cow N Found existing layer 'vg01-detruit' Getting device info for vg01-detruit dm info vg01-detruit N Found existing layer 'vg01-Sbernard-cow' Getting device info for vg01-Sbernard-cow dm info vg01-Sbernard-cow N Found existing layer 'vg01-Stomcatt-cow' Getting device info for vg01-Stomcatt-cow dm info vg01-Stomcatt-cow N Found existing layer 'vg01-Sdetruit' Getting device info for vg01-Sdetruit dm info vg01-Sdetruit N Found existing layer 'vg01-Sreleve-cow' Getting device info for vg01-Sreleve-cow dm info vg01-Sreleve-cow N Found existing layer 'vg01-lock-real' Getting device info for vg01-lock-real dm info vg01-lock-real N Found existing layer 'vg01-antispm-real' Getting device info for vg01-antispm-real dm info vg01-antispm-real N Found existing layer 'vg01-Ssasi-cow' Getting device info for vg01-Ssasi-cow dm info vg01-Ssasi-cow N Found existing layer 'vg01-adp' Getting device info for vg01-adp dm info vg01-adp N Found existing layer 'vg01-releve-real' Getting device info for vg01-releve-real dm info vg01-releve-real N Found existing layer 'vg01-Svpn01' Getting device info for vg01-Svpn01 dm info vg01-Svpn01 N Found existing layer 'vg01-c2-real' Getting device info for vg01-c2-real dm info vg01-c2-real N Found existing layer 'vg01-Smail3' Getting device info for vg01-Smail3 dm info vg01-Smail3 N Found existing layer 'vg01-sage-real' Getting device info for vg01-sage-real dm info vg01-sage-real N Found existing layer 'vg01-Santivir-cow' Getting device info for vg01-Santivir-cow dm info vg01-Santivir-cow N Found existing layer 'vg01-Sreleve' Getting device info for vg01-Sreleve dm info vg01-Sreleve N Found existing layer 'vg01-Sc4-cow' Getting device info for vg01-Sc4-cow dm info vg01-Sc4-cow N Found existing layer 'vg01-www41-real' Getting device info for vg01-www41-real dm info vg01-www41-real N Found existing layer 'vg01-Scharles-cow' Getting device info for vg01-Scharles-cow dm info vg01-Scharles-cow N Found existing layer 'vg01-charles-real' Getting device info for vg01-charles-real dm info vg01-charles-real N Found existing layer 'vg01-lock' Getting device info for vg01-lock dm info vg01-lock N Found existing layer 'vg01-tomcatp' Getting device info for vg01-tomcatp dm info vg01-tomcatp N Found active lv rsync Found active lv mail1 Found active lv smtp Found active lv c2 Found active lv c3 Found active lv c4 Found active lv lock Found active lv adp Found active lv polyc Found active lv sasi Found active lv saprod Found active lv charles Found active lv oratest Found active lv oraprod Found active lv sage Found active lv vpn01 Found active lv websv02 Found active lv tomcatt Found active lv websv01 Found active lv adsm Found active lv service Found active lv antispm Found active lv releve Found active lv ecole01 Found active lv www41 Found active lv bernard Found active lv courriel Found active lv tomcatp Found active lv detruit Found active lv antivir Found active lv mail3 Found active lv slack Found active lv Smail3 Found active lv Ssmtp Found active lv Sc2 Found active lv Sc3 Found active lv Sc4 Found active lv Slock Found active lv Sadp Found active lv Spolyc Found active lv Ssasi Found active lv Ssaprod Found active lv Scharles Found active lv Soratest Found active lv Soraprod Found active lv Ssage Found active lv Svpn01 Found active lv Swebsv02 Found active lv Stomcatt Found active lv Stomcatp Found active lv Swebsv01 Found active lv Sadsm Found active lv Sservice Found active lv Santispm Found active lv Santivir Found active lv Sreleve Found active lv Secole01 Found active lv Swww41 Found active lv Sbernard Found active lv Scourriel Found active lv Sdetruit Found active lv product (suspended) Found active lv Smail1 Found active lv Sproduct (suspended) Found active lv backup Getting target version for snapshot dm versions O Getting target version for snapshot-origin dm versions O Suspending vg01-mail1 dm suspend vg01-mail1 N Suspending vg01-Smail1 dm suspend vg01-Smail1 N Suspending vg01-mail1-real dm suspend vg01-mail1-real N Loading vg01-mail1-real Adding target: 0 10485760 linear /dev/hde1 181494144 dm reload zDVNh2LhS05EJsjiZy87OyznmZIqfpHrr9YYp2SvowPFRHTg32YmtElsb81MCo0z-real N Activated vg01-mail1-real zDVNh2LhS05EJsjiZy87OyznmZIqfpHrr9YYp2SvowPFRHTg32YmtElsb81MCo0z-real 253:002 Suspending vg01-Smail1-cow dm suspend vg01-Smail1-cow N Loading vg01-Smail1-cow Adding target: 0 2097152 linear /dev/hdf1 227639680 dm reload zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6-cow N Activated vg01-Smail1-cow zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6-cow 253:001 Loading vg01-Smail1 Adding target: 0 10485760 snapshot 253:002 253:001 P 16 dm reload zDVNh2LhS05EJsjiZy87OyznmZIqfpHrDb1mzcEgKaNaLmq8pzRnO5nZMAFm25L6 N device-mapper ioctl cmd 9 failed: Cannot allocate memory Couldn't load device 'vg01-Smail1'. Unlocking memory memlock_count dec to 0 Unable to deactivate logical volume "Smail1" Unlocking /var/lock/lvm/V_vg01 Closed /dev/hda1 Closed /dev/hde1 Closed /dev/hdg1 Closed /dev/hda2 Closed /dev/hda3 Closed /dev/hda4 Closed /dev/hdb1 Closed /dev/hdf1 Closed /dev/hdh1 # free total used free shared buffers cached Mem: 1035280 255028 780252 0 27020 66004 -/+ buffers/cache: 162004 873276 Swap: 987956 0 987956 // a "strace" on the lvremove command show that an ioctl() return NOMEM [...] read(6, " \"Text Format Volume Group\"\nvers"..., 1024) = 1024 brk(0) = 0x8158000 brk(0x815a000) = 0x815a000 ioctl(13, 0xc134fd07, 0x810f438) = 0 mlockall(MCL_CURRENT|MCL_FUTURE) = 0 brk(0) = 0x815a000 brk(0x895a000) = 0x895a000 brk(0) = 0x895a000 brk(0x8b42000) = 0x8b42000 getpriority(PRIO_PROCESS, 0) = 20 setpriority(PRIO_PROCESS, 0, -18) = 0 ioctl(13, 0xc134fd02, 0x810f438) = 0 ioctl(13, 0xc134fd07, 0x8127618) = 0 ioctl(13, 0xc134fd07, 0x8127618) = 0 ioctl(13, 0xc134fd07, 0x8127618) = 0 [...] ioctl(13, 0xc134fd07, 0x8127618) = 0 ioctl(13, 0xc134fd0d, 0x810f438) = 0 ioctl(13, 0xc134fd0d, 0x810f438) = 0 ioctl(13, 0xc134fd06, 0x810f438) = 0 ioctl(13, 0xc134fd06, 0x810f438) = 0 ioctl(13, 0xc134fd06, 0x810f438) = 0 ioctl(13, 0xc134fd09, 0x810f438) = 0 ioctl(13, 0xc134fd06, 0x810f438) = 0 ioctl(13, 0xc134fd09, 0x810f438) = 0 ioctl(13, 0xc134fd09, 0x810f438) = -1 ENOMEM (Cannot allocate memory) Note, I am able to delete a LV without a snapshot. Any help to resolve this problem would be apreciated. Tell me if you need more info. Mail me a copy of your replys (for speed) because I only receive noon daily digests. thanks, Christian Robert.