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

[Torsten Lehmann <tlehmann@xxxxxxxxxxxxx>]

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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