I have 5 “identical” VMs, created from a
“golden_copy” of an install of Centos 5.5.
 
I have used :
xm shutdown –a –w
to shutdown all VMs, and wait for each of them to
come down gracefully.
 
However, after restarting, one of the VM is not
coming up anymore, with a “device 0 not connected” error.
 
Traceback (most recent call last):
  File
"/usr/share/virt-manager/virtManager/engine.py", line 493, in
run_domain
    vm.startup()
  File
"/usr/share/virt-manager/virtManager/domain.py", line 558, in startup
    self.vm.create()
  File "/usr/lib64/python2.4/site-packages/libvirt.py",
line 293, in create
    if ret == -1: raise libvirtError
('virDomainCreate() failed', dom=self)
libvirtError: POST operation failed: xend_post:
error from xen daemon: (xend.err 'Device 0 not connected')
 
here is the /var/log/xen/ qemu-dm
log file:
 
domid: 15
qemu: the number of cpus is 2
config qemu network with xen bridge for 
tap15.0 xenbr0
Watching
/local/domain/0/device-model/15/logdirty/next-active
Watching /local/domain/0/device-model/15/command
char device redirected to /dev/pts/11
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = 75034f1e-b4df-ed75-17d1-1e17b6ddc255
Time offset set 0
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
xs_read(/vm/75034f1e-b4df-ed75-17d1-1e17b6ddc255/log-throttling):
read error
platform_fixed_ioport: changed ro/rw state of ROM
memory area. now is rw state.
xs_read(/local/domain/0/device-model/15/xen_extended_power_mgmt):
read error
xs_read(): vncpasswd get error.
/vm/75034f1e-b4df-ed75-17d1-1e17b6ddc255/vncpasswd.
bind() failed
 
 
What is at issue? Any hints would be highly
appreciated.
 
Thanks,
 
fpt