Hi All, After struggling for a while, I thought I'd try it on the list. I have filed a bugreport in Red Hat's Bugzilla (bug ID: 188013). There you can find the whole story. The shorter version (and latest added comment) is as follows: When creating a snapshot volume you get a message saying the newly created snapshot volume is in use and will not be removed/not able to deactivate new snapshot: localhost.localdomain:~# lvcreate -s -n snap -L 512M /dev/vg/home LV vg/snap in use: not removing Couldn't deactivate new snapshot. When examining the attributes of the various volumes, the snapshot volume doesn't have the expected attributes or origin volume set: localhost.localdomain:~# lvs LV VG Attr LSize Origin Snap% Move Copy% home vg -wi-ao 500.00M snap vg -wi-a- 512M log vg -wi-oa 500.00M I was told that I needed to update to kernel 2.6.16+ and update the userspace tools too. For FC5 these were released, but not for FC4. Until july 2. I have installed the updates (kernel-smp-2.6.17-1.2142_FC4, lvm2-2.02.06-1.0.fc4 and device-mapper-1.02.07-2.0 from FC4 updates by AGK@redhat.com). I tested the updates a few times (about 50) with some reboots in between and it all seemed to be working like a charm again. Until I updated a (semi) production server... Luckily it isn't in production yet, but the problem remains on that server... However when I shoot down udevd (udev-071-0.FC4.3) I can create as many snapshot devices as I like. Until the udevd daemon has been respawned. Then it all stops working (the creation of snapshot volumes). When I disable udev in /etc/rc.sysinit (place comments before start_udev and udevsend) and reboot, I can create snapshot volumes a dozen of times without problems. Until I manually start udevd. Then the fun is over. When I kill udevd again, I can continue creating snapshot volumes. Both servers (the one that works and the one that doesn't) have the exact same versions of the kernel, lvm2, device-mapper and udev. My best guess is udev that is messing about. I don't know whether I can safely disable udev on a production server. But more importantly: what can I do to get this properly fixed? Am I missing an important update? Are there any known conflicts with other packages or third party software (such as roxen)? Is there anyone who has similar problems? Thanks in advance, Dennis _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
