[Xen-users] VM does not reboot

[Heiko <rupertt@xxxxxxxxx>]

Hello,
yesterday a coworker had to reboot one VM, the Vm did shutdown but
never came back up.
We are USing CentOS 5.1 and XEN xen-3.0-x86_64.

What can be the reason of this behavior?

Here ist the part of the logfile:

[2008-07-02 15:04:18 xend.XendDomainInfo 31150] INFO
(XendDomainInfo:947) Domain has shutdown: name=auto-input-vm1 id=26
reason=reboot.
[2008-07-02 15:04:18 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:1566) XendDomainInfo.destroyDomain(26)
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:200) XendDomainInfo.create(['domain', ['domid', 26],
['uuid', 'xxxxxx-c425-7b20-8207-xxxxxxxxxxxx'], ['vcpus', 1],
['vcpu_avail', 1], [
'cpu_weight', 1.0], ['memory', 1000], ['shadow_memory', 0], ['maxmem',
1000], ['features', ''], ['name', 'auto-input-vm1'], ['on_poweroff',
'destroy'], ['on_reboot', 'restart'], ['on_crash', 'restart'], ['im
age', ['linux', ['ramdisk', '/var/lib/xen/boot_ramdisk.2MZelw'],
['kernel', '/var/lib/xen/boot_kernel.2F7umw'], ['args', 'ro
root=LABEL=/ console=xvc0']]], ['device', ['vif', ['backend', 0],
['script', 'vif-
bridge'], ['bridge', 'xenbr0'], ['mac', '00:16:3e:28:3e:65']]],
['device', ['vbd', ['backend', 0], ['dev', 'sda2:disk'], ['uname',
'file:/VM/auto-input_swapfile.img'], ['mode', 'w']]], ['device',
['tap', ['b
ackend', 0], ['dev', 'xvda:disk'], ['uname',
'tap:aio:/VM/auto-input-vm1.img'], ['mode', 'w']]], ['state',
'---s--'], ['shutdown_reason', 'reboot'], ['cpu_time',
16039.677647815], ['online_vcpus', 1], ['up_t
ime', '5015366.31765'], ['start_time', '1209995692.6']])
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:306) parseConfig: config is ['domain', ['domid', 26],
['uuid', 'bd14b9c2-c425-7b20-8207-d97f8d48262d'], ['vcpus', 1],
['vcpu_avail', 1],
['cpu_weight', 1.0], ['memory', 1000], ['shadow_memory', 0],
['maxmem', 1000], ['features', ''], ['name', 'auto-input-vm1'],
['on_poweroff', 'destroy'], ['on_reboot', 'restart'], ['on_crash',
'restart'], ['i
mage', ['linux', ['ramdisk', '/var/lib/xen/boot_ramdisk.2MZelw'],
['kernel', '/var/lib/xen/boot_kernel.2F7umw'], ['args', 'ro
root=LABEL=/ console=xvc0']]], ['device', ['vif', ['backend', 0],
['script', 'vif
-bridge'], ['bridge', 'xenbr0'], ['mac', '00:16:3e:28:3e:65']]],
['device', ['vbd', ['backend', 0], ['dev', 'sda2:disk'], ['uname',
'file:/VM/auto-input_swapfile.img'], ['mode', 'w']]], ['device',
['tap', ['
backend', 0], ['dev', 'xvda:disk'], ['uname',
'tap:aio:/VM/auto-input-vm1.img'], ['mode', 'w']]], ['state',
'---s--'], ['shutdown_reason', 'reboot'], ['cpu_time',
16039.677647815], ['online_vcpus', 1], ['up_
time', '5015366.31765'], ['start_time', '1209995692.6']]
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:411) parseConfig: result is {'shadow_memory': 0,
'start_time': 1209995692.5999999, 'uuid':
'bd14b9c2-c425-7b20-8207-d97f8d48262d', 'on_cr
ash': 'restart', 'on_reboot': 'restart', 'localtime': None, 'image':
['linux', ['ramdisk', '/var/lib/xen/boot_ramdisk.2MZelw'], ['kernel',
'/var/lib/xen/boot_kernel.2F7umw'], ['args', 'ro root=LABEL=/ consol
e=xvc0']], 'on_poweroff': 'destroy', 'bootloader_args': None, 'cpus':
None, 'name': 'auto-input-vm1', 'backend': [], 'vcpus': 1,
'cpu_weight': 1.0, 'features': '', 'vcpu_avail': 1, 'memory': 1000,
'device':
[('vif', ['vif', ['backend', 0], ['script', 'vif-bridge'], ['bridge',
'xenbr0'], ['mac', '00:16:3e:xx:xx:xx']]), ('vbd', ['vbd', ['backend',
0], ['dev', 'sda2:disk'], ['uname', 'file:/VM/auto-input_swapfile.
img'], ['mode', 'w']]), ('tap', ['tap', ['backend', 0], ['dev',
'xvda:disk'], ['uname', 'tap:aio:/VM/auto-input-vm1.img'], ['mode',
'w']])], 'bootloader': None, 'cpu': None, 'maxmem': 1000}
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:1349) XendDomainInfo.construct: None
[2008-07-02 15:04:19 xend 31150] DEBUG (balloon:127) Balloon: 959300
KiB free; need 2048; done.
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:1397) XendDomainInfo.initDomain: 43 1.0
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:1436) _initDomain:shadow_memory=0x0, maxmem=0x3e8,
memory=0x3e8.
[2008-07-02 15:04:19 xend 31150] DEBUG (balloon:127) Balloon: 1024688
KiB free; need 1024000; done.
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] ERROR
(XendDomainInfo:212) Domain construction failed
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 205, in create
    vm.initDomain()
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1453, in initDomain
    channel_details = self.image.createImage()
  File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line
119, in createImage
    return self.createDomain()
  File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line
128, in createDomain
    raise VmError('Kernel image does not exist: %s' % self.kernel)
VmError: Kernel image does not exist: /var/lib/xen/boot_kernel.2F7umw
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:1557) XendDomainInfo.destroy: domid=43
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] DEBUG
(XendDomainInfo:1566) XendDomainInfo.destroyDomain(43)
[2008-07-02 15:04:19 xend.XendDomainInfo 31150] ERROR
(XendDomainInfo:1860) Failed to restart domain 26.
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1846, in restart
    new_dom = XendDomain.instance().domain_create(config)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py",
line 228, in domain_create
    dominfo = XendDomainInfo.create(config)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 205, in create
    vm.initDomain()
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1453, in initDomain
    channel_details = self.image.createImage()
  File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line
119, in createImage
    return self.createDomain()
  File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line
128, in createDomain
    raise VmError('Kernel image does not exist: %s' % self.kernel)
VmError: Kernel image does not exist: /var/lib/xen/boot_kernel.2F7umw


thx for help


.

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