As a follow up, I have also tried it with the 2.6.16.20 kernel which is fresh from kernel.org. Same problem. > -----Original Message----- > From: linux-lvm-bounces@redhat.com [mailto:linux-lvm-bounces@redhat.com] > On Behalf Of Roger Lucas > Sent: 09 June 2006 14:43 > To: 'LVM general discussion and development' > Subject: Problem creating snapshots with 2.6.16.9 and LVM > 2.02.06 > > Hi, > > I am running what was Debian Sarge but has the new 2.6.16.9 kernel. I > have > made a few patches to the kernel (to add an Areca RAID driver and a few > hardware sensors) but nothing in the device-mapper areas. I use the > snapshots capability in LVM to snapshot the client's userdisk volume when > backing it up. > > Until a couple days ago, I was running: > > Wombat:~# uname -a > Linux Wombat 2.6.16.9.rwl7 #1 Tue May 16 20:25:14 BST 2006 i686 GNU/Linux > Wombat:~# lvm version > LVM version: 2.01.04 (2005-02-09) > Library version: 1.01.00-ioctl (2005-01-17) > Driver version: 4.4.0 > Wombat:~# > > and everything ran fine. > > A few days ago, I saw an e-mail from Alasdair on this mailing list saying > that kernels 2.6.16 onwards should be using the later userspace tools. > Following this, I downloaded and compiled the latest device mapper library > (libdevmapper 1.02) and LVM tools (2.02.06). When I installed them on the > machine and re-ran the backup script, I got an error from lvcreate when I > tried to make the snapshot which I did not get before. I saw that Patrick > Honing also reported this error on 29/5/06 on this mailing list, but > couldn't see any reply. > > For me, this failure is 100% repeatable. > > Can anyone help shed light on this? > > If you need any more information then please let me know and I will send > it > in. My current option seems to be to drop back to the older 2.01.04 lvm > and > 1.01 dmapper but given Alasdair's mail, this seems to be risky. > > The full shell trace is below. > > Wombat:~# uname -a > Linux Wombat 2.6.16.9.rwl7 #1 Tue May 16 20:25:14 BST 2006 i686 GNU/Linux > Wombat:~# lvm version > LVM version: 2.02.06 (2006-05-12) > Library version: 1.02.07 (2006-05-11) > Driver version: 4.5.0 > Wombat:~# lvs > LV VG Attr LSize Origin Snap% Move Log Copy% > backupimage clientstore -ri-ao 60.00G > root clientstore -wi-ao 5.00G > userdisk clientstore -wi-ao 60.00G > Wombat:~# vgs > VG #PV #LV #SN Attr VSize VFree > clientstore 1 3 0 wz--n- 148.98G 23.98G > Wombat:~# pvs > PV VG Fmt Attr PSize PFree > /dev/sda2 clientstore lvm2 a- 148.98G 23.98G > Wombat:~# lvcreate -L10G -n snapdisk -s /dev/clientstore/userdisk > LV clientstore/snapdisk in use: not deactivating > Couldn't deactivate new snapshot. > Wombat:~# lvs > LV VG Attr LSize Origin Snap% Move Log Copy% > backupimage clientstore -ri-ao 60.00G > root clientstore -wi-ao 5.00G > snapdisk clientstore -wi-a- 10.00G > userdisk clientstore -wi-ao 60.00G > Wombat:~# > > > Many thanks in advance, > > Roger > > _______________________________________________ > 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/ _______________________________________________ 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/
