Bugzilla – Bug 610194
lvm snapshot create gives warning
Last modified: 2010-05-31 06:27:43 UTC
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.9.2.3) Gecko/20100401 SUSE/3.6.3-1.2 Firefox/3.6.3 Creating an lvm snapshot gives me a warning: # lvcreate -s -Ay -c 64k -n dbsnap -L 4G -v /dev/db/mysql Setting chunksize to 128 sectors. Setting logging type to disk Finding volume group "db" Archiving volume group "db" metadata (seqno 8). Creating logical volume dbsnap Creating volume group backup "/etc/lvm/backup/db" (seqno 9). Found volume group "db" Creating db-dbsnap Loading db-dbsnap table Resuming db-dbsnap (253:1) Clearing start of logical volume "dbsnap" Found volume group "db" Found volume group "db" Creating db-mysql-real Loading db-mysql-real table Resuming db-mysql-real (253:2) Loading db-mysql table Creating db-dbsnap-cow Loading db-dbsnap-cow table Resuming db-dbsnap-cow (253:3) Loading db-dbsnap table Suspending db-mysql (253:0) with filesystem sync with device flush Suspending db-mysql-real (253:2) with filesystem sync with device flush Found volume group "db" Loading db-mysql-real table Loading db-dbsnap-cow table Resuming db-mysql-real (253:2) Resuming db-dbsnap-cow (253:3) Resuming db-dbsnap (253:1) Resuming db-mysql (253:0) Monitoring db/snapshot0 db-dbsnap: event registration failed: 17261:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib64/libdevmapper-event-lvm2snapshot.so.2.02: undefined symbol: lvm2_run db/snapshot0: snapshot segment monitoring function failed. Creating volume group backup "/etc/lvm/backup/db" (seqno 10). Logical volume "dbsnap" created It seems there is some kernel module missing, maybe this thread https://bugzilla.redhat.com/show_bug.cgi?id=540289 can help fix it. Reproducible: Always Steps to Reproduce: 1. have a XenServer VM with openSUSE 11.2 2. have a disk with a VG having one LV and some free space in the VG 3. lvcreate -s -Ay -c 64k -n dbsnap -L 4G -v /dev/existing_vg/existing_lv Actual Results: displays warning db-dbsnap: event registration failed: 17261:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib64/libdevmapper-event-lvm2snapshot.so.2.02: undefined symbol: lvm2_run db/snapshot0: snapshot segment monitoring function failed. Expected Results: no warning :-)
It's submitted for next update candidate. *** This bug has been marked as a duplicate of bug 556177 ***