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
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---[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:116) DevController: writing {'frontend-id': '6', 'domain': 'ttyimage', 'frontend': '/local/domain/6/device/vkbd/0', 'state': '1', 'online': '1'} to /local/domain/0/backend/vkbd/6/0.
[2010-04-11 07:08:02 xend.XendDomainInfo 3155] DEBUG (XendDomainInfo:633) Checking for duplicate for uname: /usr/local/ttylinux-xen-libvirt/ttylinux-xen.img [file:/usr/local/ttylinux-xen-libvirt/ttylinux-xen.img], dev: sda, mode: w
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:114) DevController: writing {'virtual-device': '2048', 'device-type': 'disk', 'protocol': 'x86_32-abi', 'backend-id': '0', 'state': '1', 'backend': '/local/domain/0/backend/vbd/6/2048'} to /local/domain/6/device/vbd/2048.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:116) DevController: writing {'domain': 'ttyimage', 'frontend': '/local/domain/6/device/vbd/2048', 'format': 'raw', 'dev': 'sda', 'state': '1', 'params': '/usr/local/ttylinux-xen-libvirt/ttylinux-xen.img', 'mode': 'w', 'online': '1', 'frontend-id': '6', 'type': 'file'} to /local/domain/0/backend/vbd/6/2048.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:114) DevController: writing {'mac': '00:1d:60:ec:ae:1c', 'handle': '0', 'protocol': 'x86_32-abi', 'backend-id': '0', 'state': '1', 'backend': '/local/domain/0/backend/vif/6/0'} to /local/domain/6/device/vif/0.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:116) DevController: writing {'bridge': 'peth0', 'domain': 'ttyimage', 'handle': '0', 'script': '/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': '/local/domain/6/device/vif/0', 'mac': '00:1d:60:ec:ae:1c', 'vifname': 'testnimb-0', 'online': '1', 'frontend-id': '6'} to /local/domain/0/backend/vif/6/0.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:114) DevController: writing {'protocol': 'x86_32-abi', 'state': '1', 'backend-id': '0', 'backend': '/local/domain/0/backend/vfb/6/0'} to /local/domain/6/device/vfb/0.
[2010-04-11 07:08:02 xend 3155] DEBUG (DevController:116) DevController: writing {'vncunused': '0', 'domain': 'ttyimage', 'frontend': '/local/domain/6/device/vfb/0', 'vncdisplay': '0', 'state': '1', 'online': '1', 'frontend-id': '6', 'type': 'vnc'} to /local/domain/0/backend/vfb/6/0.
[2010-04-11 07:08:02 xend 3155] DEBUG (vfbif:70) No VNC passwd configured for vfb access
[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.
[2010-04-11 07:08:54 xend.XendDomainInfo 3155] DEBUG (XendDomainInfo:2128) XendDomainInfo.destroy: domid=6
[2010-04-11 07:08:54 xend.XendDomainInfo 3155] INFO (XendDomainInfo:2289) Dev 2048 still active, looping...
[2010-04-11 07:08:55 xend.XendDomainInfo 3155] INFO (XendDomainInfo:2289) Dev 2048 still active, looping...
[2010-04-11 07:08:55 xend.XendDomainInfo 3155] INFO (XendDomainInfo:2289) Dev 2048 still active, looping...
[2010-04-11 07:08:55 xend.XendDomainInfo 3155] INFO (XendDomainInfo:2289) Dev 2048 still active, looping...
[2010-04-11 07:08:55 xend.XendDomainInfo 3155] DEBUG (XendDomainInfo:2053) UUID Created: True
[2010-04-11 07:08:55 xend.XendDomainInfo 3155] DEBUG (XendDomainInfo:2054) Devices to release: [5], domid = 6
[2010-04-11 07:08:55 xend.XendDomainInfo 3155] DEBUG (XendDomainInfo:2066) Releasing PVFB backend devices ...
[2010-04-11 07:08:55 xend 3155] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vif/6/0/hotplug-status.
[2010-04-11 07:08:55 xend 3155] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vif/6/0/hotplug-status.
[2010-04-11 07:08:55 xend 3155] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status.

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Libvirt Log Message:
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Apr 11 07:27:10 sankamesh libvirtd: 07:27:10.990: error : internal error looking up dom
Apr 11 07:27:14 sankamesh kernel: device testnimb-0 entered promiscuous mode
Apr 11 07:27:14 sankamesh kernel: ADDRCONF(NETDEV_UP): testnimb-0: link is not ready
Apr 11 07:27:18 sankamesh kernel: virbr0: port 1(testnimb-0) entering disabled state
Apr 11 07:27:18 sankamesh kernel: device testnimb-0 left promiscuous mode
Apr 11 07:27:18 sankamesh kernel: virbr0: port 1(testnimb-0) entering disabled state
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The configuration xml file ::
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<?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>
       </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='sda' />
        </disk>
        <interface type='bridge'>
            <source bridge='virbr0' />
            <mac address='00:1d:60:ec:ae:1c' />
            <target dev='testnimb-0' />
        </interface>
    </devices>
</domain>

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I use Static Ip address and brctl show ::

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bridge name     bridge id               STP enabled     interfaces
virbr0          8000.000000000000       yes
xenbr0          8000.feffffffffff            no                    peth0
                                                                            vif0.0
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I am confused about the error in log messages. I just want to have a stable image running. What could be the problem???

Kindly help me

Thanks