New subject: [libvirt] Domain not stable while created...

12 Apr 2010

      Thanks Mr. Stefan

Will that crash mainly be due to the kernel ? Since am not sure about that,else I should try with different image. 

When I use via a config file using "xm create libvirt-ttylinux.conf ", then the domain runs stable....

But when I use the virsh -c xen:/// define libvirt-ttylinux.xml"
and "virsh start ttyimage, it crashes after sometime.

The ibvirt-ttylinux.conf file ::

--------------------------------------------------------------------------------------------------------------------------------
kernel = "/boot/vmlinuz-2.6.18-164.2.1.el5xen"
ramdisk= "/boot/initrd-2.6.18-164.2.1.el5xen.img"
memory = 64
name = "ttylinux"
disk = ['file:/usr/local/ttylinux-xen-libvirt/ttylinux-xen.img,sda1,w']
root = "/dev/sda1 ro"
vif = ['']
--------------------------------------------------------------------------------------------------------------------------------

I give the same Xen kernel parameter here in xml file, and use virsh to create domain

---------------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0" encoding="utf-8"?>
<domain type='xen'>
    <name>ttyimage</name>
    <os>
        <type>linux</type>
        <kernel>/boot/vmlinuz-2.6.18-164.2.1.el5xen</kernel>
        <initrd>/boot/initrd-2.6.18-164.2.1.el5xen.img</initrd>
     </os>
    <memory>65536</memory>
    <vcpu>1</vcpu>
    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
    <on_crash>destroy</on_crash>
    <devices>
        <graphics type='vnc' port='5900'/>
        <disk type='file'>
            <source file='/usr/local/ttylinux-xen-libvirt/ttylinux-xen.img' />
            <target dev='sda1' />
        </disk>
        <interface type='bridge'>
            <source bridge='virbr0' />
            <mac address='00:1d:60:ec:ae:1c' />
            <target dev='testnimb-0' />
        </interface>
    </devices>
</domain>
---------------------------------------------------------------------------------------------------------------------------------------
My Boot grub file data::

--------------------------------------------------------------------------------------------------------------------------------------title Scientific Linux (2.6.18-164.2.1.el5xen)
    root (hd0,0)
    kernel /xen.gz-2.6.18-164.2.1.el5 
    module /vmlinuz-2.6.18-164.2.1.el5xen ro root=LABEL=/1 rhgb quiet
    module /initrd-2.6.18-164.2.1.el5xen.img

--------------------------------------------------------------------------------------------------------------------------------------

Why is this difference between the xm (when i destroy the image,domain is also destroyed) and virsh (domain is not destroyed while destroying the image) . 

I doubt that am making some mistake with the xml file .... Is that true?

Kindly give some suggestions

Thanks

________________________________
libvir-list-bounces@redhat.com wrote on 04/10/2010
09:47:17 AM:
...
libvir-list
Hello,
Thanks Alex
I created a domain using  "virsh -c xen:/// define libvirt-ttylinux.xml"
and
"virsh start ttyimage" for a simple ttyimage.
Problem I face is that the image shutsdown immedialtely once virsh 
start guest  is typed. 
I checked the Xend Logs
----------------------------------------------------------------------------------------------------------
---[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:116) 
DevController: writing {'frontend-id': '6', 'domain': 'ttyimage', 
[...] 
[2010-04-11 07:08:02 xend 3155] DEBUG (vfbif:11)
Spawn: ['/usr/lib/
xen/bin/qemu-dm', '-M', 'xenpv', '-d', '6', '-domain-name', 
'ttyimage', '-vnc', '127.0.0.1:0', '-vncunused', '-k', 'en-us']
[2010-04-11 07:08:02 xend.XendDomainInfo 3155] DEBUG 
(XendDomainInfo:992) Storing VM details: {'shadow_memory': '0', 
'uuid': 'd5e916b0-bc2d-01f9-8156-4808c754f67a', 'on_reboot': 
'restart', 'start_time': '1270937282.29', 'on_poweroff': 'destroy', 
'name': 'ttyimage', 'xend/restart_count': '0', 'vcpus': '1', 
'vcpu_avail': '1', 'memory': '64', 'on_crash': 'destroy', 'image': 
'(linux (kernel /boot/vmlinuz-2.6.18-164.2.1.el5xen))', 'maxmem':
'64'}
[2010-04-11 07:08:02 xend.XendDomainInfo 3155] DEBUG 
(XendDomainInfo:1027) Storing domain details: {'console/ring-ref': 
'65674', 'console/port': '2', 'name': 'ttyimage', 'console/limit': 
'1048576', 'vm': '/vm/d5e916b0-bc2d-01f9-8156-4808c754f67a', 
'domid': '6', 'cpu/0/availability': 'online', 'memory/target': 
'65536', 'store/ring-ref': '65675', 'store/port': '1'}
[2010-04-11 07:08:02 xend.XendDomainInfo 3155] DEBUG 
(XendDomainInfo:1249) XendDomainInfo.handleShutdownWatch
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:158) Waiting 
for devices vif.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:164) Waiting
for 0.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:509) 
hotplugStatusCallback /local/domain/0/backend/vif/6/0/hotplug-status.
[2010-04-11 07:08:51 xend 3155] INFO (XendDomain:387) Domain 
ttyimage (6) unpaused.
[2010-04-11 07:08:54 xend.XendDomainInfo 3155] WARNING 
(XendDomainInfo:1177) Domain has crashed: name=ttyimage id=6.
You domain crashed here...  Is the VM image and
kernel in that image known to work? 

  Regards, 
      Stefan 

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Re: [libvirt] Domain not stable while created...

Sankamesh

Stefan Berger

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