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<p align="left"><font color="#000000"><font size="4">Hello, <br>
</font></font></p>
<p align="left"><font color="#000000"><font size="4">I have a big
problem with LVM2 (FC2) and the snapshot on a Dell PE1650 or Dell
PE1750 (strangely not on a Dell GX240).<br>
The host is frozen after 3 snapshot.<br>
</font></font></p>
<p align="left"><font color="#000000"><font size="4">A bug ??<br>
</font></font></p>
<p align="left"><font color="#000000"><font size="4"><b>------------<br>
Essai FC2 sur
PE1750 <br>
no raid</b></font></font></p>
<p style="" align="left"><font color="#000000"><font size="4">install
+ upgrade</font></font></p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
/dev/sda1 38G 292M 36G 1% /<br>
/dev/mapper/vg0-home 9.7G 33M 9.1G 1%
/home<br>
/dev/mapper/vg0-usr 5.8G 1.1G 4.5G 19%
/usr<br>
/dev/mapper/vg0-var 2.0G 206M 1.7G 11% /var</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
2.6.8-1.521smp<br>
lvm2-2.00.15-2</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
[root@auto1 /]# lvscan <br>
ACTIVE '/dev/vg0/home' [9.77 GB] next free
(default)<br>
ACTIVE '/dev/vg0/usr' [5.86 GB] next free
(default)<br>
ACTIVE '/dev/vg0/var' [1.95 GB] next free (default)</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
[root@auto1 /]# lvcreate -L500M -s -n snap1 /dev/vg0/var<br>
Logical
volume "snap1" created</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
commande : lvscan et lvdisplay, mount snap -> ok</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
Deuxiéme snapshot</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
[root@auto1 /]# lvscan <br>
ACTIVE '/dev/vg0/home' [9.77 GB] next free
(default)<br>
ACTIVE '/dev/vg0/usr' [5.86 GB] next free
(default)<br>
ACTIVE Original '/dev/vg0/var' [1.95 GB] next free
(default)<br>
ACTIVE Snapshot '/dev/vg0/snap1' [500.00 MB] next free
(default)<br>
ACTIVE Snapshot '/dev/vg0/snap2' [500.00 MB] next free
(default)</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
commande : lvscan et lvdisplay, mount snap -> ok</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
Troisiéme snapshot</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
[root@auto1 /]# lvscan <br>
ACTIVE '/dev/vg0/home' [9.77 GB] next free
(default)<br>
ACTIVE '/dev/vg0/usr' [5.86 GB] next free
(default)<br>
ACTIVE Original '/dev/vg0/var' [1.95 GB] next free
(default)<br>
ACTIVE Snapshot '/dev/vg0/snap1' [500.00 MB] next free
(default)<br>
ACTIVE Snapshot '/dev/vg0/snap2' [500.00 MB] next free
(default)<br>
ACTIVE Snapshot '/dev/vg0/snap3' [500.00 MB] next free
(default)</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
freeze !!</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">no
log, no message on the console, possibilité de commande
tel que ls, df, ps<br>
j'essai de stopper le process lvscan ->
impossible (état : D uninterruptible sleep (usually IO))</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
Try to remove snap : lvremove /dev/vg0/snapx -> freeze<br>
</p>
<p
style="border-style: none none solid; border-color: -moz-use-text-color -moz-use-text-color rgb(0, 0, 0); border-width: medium medium 1px; padding: 0cm 0cm 0.07cm;">
<b><font size="4"><font color="#800000">Crash<br>
</font></font></b></p>
<pre class="moz-signature" cols="72">--
Vincent Carpier
Comité Réseau des Universités
<a class="moz-txt-link-freetext" href="http://www.cru.fr">http://www.cru.fr</a>
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