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Re: [Xen-users] Problem to get more than 8 loopback deviceses.

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Problem to get more than 8 loopback deviceses.
From: Torsten Lehmann <tlehmann@xxxxxxxxxxxxx>
Date: Tue, 4 Dec 2007 09:13:39 +0100 (CET)
Delivery-date: 2007年12月04日 00:14:45 -0800
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hallo Tomasz!
Now i tested option "netloop.nloopbacks=16", but
problem not resolved. (modutils-2.4.26-1.2, 2.4.27.0-6)
(s. test netloop.nloopbacks)
What can i do?
Addition i send a note "node != max_loop".
(s. note_xen_loop-dev)
regards Torsten
-------------------------------------------------------------------------------
 - test netloop.nloopbacks
 (s. [3])
# dmesg | grep loop
Kernel command line: root=/dev/sda1 ro netloop.nloopbacks=16 xencons=off 
max_loop=16
loop: loaded (max 8 devices)
# grep max_loop /etc/modules.conf
options loop max_loop=16
# modprobe -V
module-init-tools version 3.3-pre2
# apt-cache show modutils | grep Version
Version: 2.4.27.0-6
# apt-cache show module-init-tools | grep Version
Version: 3.3-pre4-2
# grep BLK_DEV_LOOP .config
CONFIG_BLK_DEV_LOOP=m
## (compiled as modul to better testing)
-------------------------------------------------------------------------------
- note_xen_loop-dev
 - zu log_xen_hotplug
 - xen liest die Devices nach folgenden Prinzip aus:
 loops=`ls /dev/loop*`
 -> 0 1 10 2 ... -> crash dev #3 if (max_loop=8)
 -> d.h. Es duerfen nicht mehr Nodes existieren
 wie mit max_loop definiert!
 May exist no more Nodes, as loop-devices real exist.
-------------------------------------------------------------------------------
--
Torsten lehmann
LauNOC
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