[linux-lvm] Re: Snapshot segfaults lvremove + bug kernel
robin-lists at robinbowes.com
Mon May 8 22:19:04 UTC 2006
Gabriel Barazer wrote:
> > Hello,
> > I recently posted a LVM freeze while deleting snapshot, which could
> > be workaround-ed by issuing a dmsetup resume command.
> > I was replied on the list that my tools weren't up to date (i had the
> > stable versions, the up to date are devel), so I retried the whole
> > thing (adding/deleting snapshot) with the new tools
> > Versions are :
> > Kernel 18.104.22.168
> > LVM 2.02.05
> > Livdevmapper 1.02.05
> > Driver 4.5.0
> > The lvcreate has been successfully created , but the lvremove after
> > gave me a segfault. Then the whole LVM system froze. After
> > hard-rebooting, the snapshot is still here. Anyone got the same , or
> > found a solution ?
I'm seeing a similar thing.
I've just started using snapshots as part of my backup process. I create
a snapshot, mount it, and take the backup from the snapshot then umount
and lvremove the snapshot when the backup has finished.
This seemed to be working but the server hung and required rebooting.
Now when I try and use lvremove to remove the snapshots the server hangs.
This is the output of lvs:
LV VG Attr LSize Origin Snap% Move Copy%
lv_home VolGroup00 owi-ao 5.00G
lv_home.snap VolGroup00 swi-a- 512.00M lv_home 5.35
lv_root VolGroup00 owi-ao 1.00G
lv_root.snap VolGroup00 swi-a- 512.00M lv_root 9.14
lv_scratch VolGroup00 -wi-ao 50.00G
lv_swap_01 VolGroup00 -wi-ao 4.00G
lv_usr VolGroup00 owi-ao 5.00G
lv_usr.snap VolGroup00 swi-a- 512.00M lv_usr 5.86
lv_var VolGroup00 owi-ao 54.09G
lv_var.snap VolGroup00 swi-a- 512.00M lv_var 40.77
This is on an x86_64 Fedora Core 4 system:
LVM version: 2.01.08 (2005-03-22)
Library version: 1.01.02 (2005-05-17)
Driver version: 4.5.0
Any idea what might be causing this?
Any idea how to clean up the system, i.e. remove the
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