LVM2 strange behaviour

Happy new year all,

I am new to the mailing list and a new user of Linux LVM although i have been using similar technologies for years on Solaris and AIX.

I have some strange behaviour i am encountering on a newly installed machine.

$> lvm version
LVM version: 2.00.08 (2003-11-14)
Library version: 1.00.17-ioctl (2004-04-19)
Driver version: 4.3.0
$>

The machine is newly installed with Gentoo linux 2004.3, latest version. I installed according to
http://gentoo-wiki.com/index.php?title=HOWTO_Gentoo_Install_on_Software_RAID_mirror_and_LVM2_on_top_of_RAID

and seems to work fine. The RAID-1 partitions work perfectly but the LVM volumes behave weird.

When i reboot the machine using `shutdown -r' the volumes do not come online because during boot the vgscan fails with a segfault. I have to manually do a vgscan and reboot again, then things work ok. Same things happen when i reboot now: vgscan segfaults, manual vgscan, reboot --> all ok.

What could be the problem?

Thanks,
Fred

Fred Donck <[email protected]>
wrote at Sun, Jan 02, 2005 at 01:18:05PM +0100:

I forgot:

$> uname -a
Linux music 2.6.9-gentoo-r13 #2 SMP Thu Dec 30 11:05:38 UTC 2004 i686 Intel(R) Celeron(R) CPU 2.80GHz GenuineIntel GNU/Linux $> df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md2 1003932 50568 953364 6% /
/dev/vg/usr 10485436 1858748 8626688 18% /usr

/dev/vg/var           10485436     58412  10427024   1% /var
/dev/vg/tmp            4194172     32840   4161332   1% /tmp
/dev/vg/opt            4194172     32840   4161332   1% /opt
/dev/vg/home           4194172     32968   4161204   1% /home
/dev/vg/music        419417596  18097476 401320120   5% /music
/dev/vg/backup       104854396     32840 104821556   1% /backup
none                    248792         0    248792   0% /dev/shm

$> vgdisplay
--- Volume group ---
VG Name vg
System ID

  Format                lvm2
  Metadata Areas        3
  Metadata Sequence No  11
  VG Access             read/write
  VG Status             resizable
  MAX LV                255
  Cur LV                7
  Open LV               0
  Max PV                255
  Cur PV                3
  Act PV                3
  VG Size               696.62 GB
  PE Size               4.00 MB
  Total PE              178335
  Alloc PE / Size       136192 / 532.00 GB
  Free  PE / Size       42143 / 164.62 GB

VG UUID YECo93-H43t-51ST-0mzk-A6OD-QtGh-5dz147
$>

Machine contains 4x250Gb
hda and hdi are mirrored as /dev/md[0-3]
/dev/md3 is part of volumegroup "vg" including /dev/hde and /dev/hdk

If more info is needed, let me know

--- End of [email protected]'s quote ---

Cheers,

Fred

Very funny, I made the same mistake like you. Please upgrade your LVM2 to the newest version. B-)

Read the thread 'Very long startup times of the lv*-tools'[1][2] for further details.

[1]https://www.redhat.com/archives/linux-lvm/2004-December/msg00124.html [2]https://www.redhat.com/archives/linux-lvm/2004-December/msg00126.html

So long... Fuzz

Erik Wasser <[email protected]>
wrote at Sun, Jan 02, 2005 at 02:30:14PM +0100:

$> ACCEPT_KEYWORDS="~x86" emerge lvm2

<snip all compiles>

$> lvm version
LVM version: 2.00.25 (2004-09-29)
Library version: 1.00.17-ioctl (2004-04-19)
Driver version: 4.3.0
$>

--- End of [email protected]'s quote ---

After reboot all looks wel.
vgscan doesnt segfault anymore

cheers,

Fred