Arun Sharma
2009-Oct-12 12:57 UTC
[Xen-users] domU hangs after "xm create command" having error "exception looking up device number for xvda"
Hello Xen users ,
I am facing one domU (Xubuntu 9.04 32 bit) hang problem on dom0 ( Centos 5.3
kernel 2.6.18-164.el5xen).
Error in logs - "(blkif:27) exception looking up device number for xvda:
[Errno 2] No such file or directory: ''/dev/xvda''"
Whenever i create vm using xm create command , it just hangs with below
output.
# xm create -c x.cfg
Using config file "./x.cfg".
Started domain x
I am not sure why it hangs on one dom0, but unfortunatly with same dom0
hardware configuration it works like a charm. I have also attached xend
logs along with this mail.
Any idea ?
Advance thanks
Arun Sharma
--- Xen x.cfg file looks like this -----
name = "x"
memory = 1024
disk = [ ''phy:/dev/VolGroup00/Blxubdm904_32_1,xvda,r'',
''tap:aio:/root/xubuntu/x.swap,xvdb,w'',
''tap:aio:/root/xubuntu/x.img,xvdd,w'' ]
vif = [''mac=00:15:17:77:4E:E2, bridge=xenbr0'']
bootloader="/usr/bin/pygrub"
vcpus=1
#vfb= [''type=vnc,vncunused=1'']
on_poweroff = ''destroy''
on_reboot = ''destroy''
on_crash = ''destroy''
---------------------------------------------------------------------------
Xend logs
-----------------------------------------------------------------------------------
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:200)
XendDomainInfo.create([''vm'', [''name'',
''x''], [''memory'', ''1024''],
[''on_poweroff'', ''destroy''],
[''on_reboot'', ''destroy''],
[''on_crash'',
''destroy''], [''vcpus'', 2],
[''bootloader'', ''/usr/bin/pygrub''],
[''image'',
[''linux'', [''ramdisk'',
''/var/lib/xen/boot_ramdisk.JTQd57''],
[''kernel'',
''/var/lib/xen/boot_kernel._q-nx0''], [''args'',
''root=/dev/xvda ro single'']]],
[''device'', [''tap'',
[''uname'',
''tap:aio:/root/xubuntu/Blxubdm904_32_1.img''],
[''dev'', ''xvda''], [''mode'',
''r'']]], [''device'', [''tap'',
[''uname'',
''tap:aio:/root/xubuntu/x.swap''], [''dev'',
''xvdb''], [''mode'', ''w'']]],
[''device'', [''tap'',
[''uname'', ''tap:aio:/root/xubuntu/x.img''],
[''dev'',
''xvdd''], [''mode'', ''w'']]],
[''device'', [''vif'',
[''bridge'', ''xenbr0'']]]])
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:312)
parseConfig: config is [''vm'', [''name'',
''x''], [''memory'', ''1024''],
[''on_poweroff'', ''destroy''],
[''on_reboot'', ''destroy''],
[''on_crash'',
''destroy''], [''vcpus'', 2],
[''bootloader'', ''/usr/bin/pygrub''],
[''image'',
[''linux'', [''ramdisk'',
''/var/lib/xen/boot_ramdisk.JTQd57''],
[''kernel'',
''/var/lib/xen/boot_kernel._q-nx0''], [''args'',
''root=/dev/xvda ro single'']]],
[''device'', [''tap'',
[''uname'',
''tap:aio:/root/xubuntu/Blxubdm904_32_1.img''],
[''dev'', ''xvda''], [''mode'',
''r'']]], [''device'', [''tap'',
[''uname'',
''tap:aio:/root/xubuntu/x.swap''], [''dev'',
''xvdb''], [''mode'', ''w'']]],
[''device'', [''tap'',
[''uname'', ''tap:aio:/root/xubuntu/x.img''],
[''dev'',
''xvdd''], [''mode'', ''w'']]],
[''device'', [''vif'',
[''bridge'', ''xenbr0'']]]]
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:417)
parseConfig: result is {''shadow_memory'': None,
''start_time'': None, ''uuid'':
None, ''on_crash'': ''destroy'',
''on_reboot'': ''destroy'',
''localtime'': None,
''image'': [''linux'',
[''ramdisk'',
''/var/lib/xen/boot_ramdisk.JTQd57''],
[''kernel'',
''/var/lib/xen/boot_kernel._q-nx0''], [''args'',
''root=/dev/xvda ro
single'']], ''on_poweroff'':
''destroy'', ''bootloader_args'': None,
''cpus'': None,
''name'': ''x'', ''backend'':
[], ''vcpus'': 2, ''cpu_weight'': None,
''features'':
None, ''vcpu_avail'': None, ''memory'': 1024,
''device'': [(''tap'', [''tap'',
[''uname'',
''tap:aio:/root/xubuntu/Blxubdm904_32_1.img''],
[''dev'', ''xvda''],
[''mode'', ''r'']]), (''tap'',
[''tap'', [''uname'',
''tap:aio:/root/xubuntu/x.swap''],
[''dev'', ''xvdb''], [''mode'',
''w'']]), (''tap'', [''tap'',
[''uname'',
''tap:aio:/root/xubuntu/x.img''], [''dev'',
''xvdd''], [''mode'', ''w'']]),
(''vif'',
[''vif'', [''bridge'',
''xenbr0'']])], ''bootloader'':
''/usr/bin/pygrub'', ''cpu'':
None, ''maxmem'': None}
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:1427)
XendDomainInfo.construct: None
[2009-10-12 06:57:23 xend 4770] DEBUG (balloon:143) Balloon: 22571056 KiB
free; need 2048; done.
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:1475)
XendDomainInfo.initDomain: 18 1.0
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:1514)
_initDomain:shadow_memory=0x0, maxmem=0x400, memory=0x400.
[2009-10-12 06:57:23 xend 4770] DEBUG (balloon:143) Balloon: 22571048 KiB
free; need 1048576; done.
[2009-10-12 06:57:23 xend 4770] INFO (image:137) buildDomain os=linux dom=18
vcpus=2
[2009-10-12 06:57:23 xend 4770] DEBUG (image:206) domid = 18
[2009-10-12 06:57:23 xend 4770] DEBUG (image:207) memsize = 1024
[2009-10-12 06:57:23 xend 4770] DEBUG (image:208) image
/var/lib/xen/boot_kernel._q-nx0
[2009-10-12 06:57:23 xend 4770] DEBUG (image:209) store_evtchn = 1
[2009-10-12 06:57:23 xend 4770] DEBUG (image:210) console_evtchn = 2
[2009-10-12 06:57:23 xend 4770] DEBUG (image:211) cmdline root=/dev/xvda
ro single
[2009-10-12 06:57:23 xend 4770] DEBUG (image:212) ramdisk
/var/lib/xen/boot_ramdisk.JTQd57
[2009-10-12 06:57:23 xend 4770] DEBUG (image:213) vcpus = 2
[2009-10-12 06:57:23 xend 4770] DEBUG (image:214) features [2009-10-12
06:57:23 xend 4770] DEBUG (blkif:27) exception looking up device
number for xvda: [Errno 2] No such file or directory:
''/dev/xvda''
[2009-10-12 06:57:23 xend 4770] DEBUG (blkif:27) exception looking up device
number for xvda: [Errno 2] No such file or directory:
''/dev/xvda''
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:110) DevController:
writing {''virtual-device'': ''51712'',
''device-type'': ''disk'',
''protocol'':
''x86_32-abi'', ''backend-id'':
''0'', ''state'': ''1'',
''backend'':
''/local/domain/0/backend/tap/18/51712''} to
/local/domain/18/device/vbd/51712.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:112) DevController:
writing {''domain'': ''x'',
''frontend'':
''/local/domain/18/device/vbd/51712'',
''format'': ''raw'', ''dev'':
''xvda'', ''state'': ''1'',
''params'':
''aio:/root/xubuntu/Blxubdm904_32_1.img'',
''mode'': ''r'', ''online'':
''1'',
''frontend-id'': ''18'',
''type'': ''tap''} to
/local/domain/0/backend/tap/18/51712.
[2009-10-12 06:57:23 xend 4770] DEBUG (blkif:27) exception looking up device
number for xvdb: [Errno 2] No such file or directory:
''/dev/xvdb''
[2009-10-12 06:57:23 xend 4770] DEBUG (blkif:27) exception looking up device
number for xvdb: [Errno 2] No such file or directory:
''/dev/xvdb''
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:110) DevController:
writing {''virtual-device'': ''51728'',
''device-type'': ''disk'',
''protocol'':
''x86_32-abi'', ''backend-id'':
''0'', ''state'': ''1'',
''backend'':
''/local/domain/0/backend/tap/18/51728''} to
/local/domain/18/device/vbd/51728.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:112) DevController:
writing {''domain'': ''x'',
''frontend'':
''/local/domain/18/device/vbd/51728'',
''format'': ''raw'', ''dev'':
''xvdb'', ''state'': ''1'',
''params'':
''aio:/root/xubuntu/x.swap'', ''mode'':
''w'', ''online'': ''1'',
''frontend-id'': ''18'',
''type'': ''tap''} to
/local/domain/0/backend/tap/18/51728.
[2009-10-12 06:57:23 xend 4770] DEBUG (blkif:27) exception looking up device
number for xvdd: [Errno 2] No such file or directory:
''/dev/xvdd''
[2009-10-12 06:57:23 xend 4770] DEBUG (blkif:27) exception looking up device
number for xvdd: [Errno 2] No such file or directory:
''/dev/xvdd''
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:110) DevController:
writing {''virtual-device'': ''51760'',
''device-type'': ''disk'',
''protocol'':
''x86_32-abi'', ''backend-id'':
''0'', ''state'': ''1'',
''backend'':
''/local/domain/0/backend/tap/18/51760''} to
/local/domain/18/device/vbd/51760.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:112) DevController:
writing {''domain'': ''x'',
''frontend'':
''/local/domain/18/device/vbd/51760'',
''format'': ''raw'', ''dev'':
''xvdd'', ''state'': ''1'',
''params'':
''aio:/root/xubuntu/x.img'', ''mode'':
''w'', ''online'': ''1'',
''frontend-id'': ''18'',
''type'': ''tap''} to
/local/domain/0/backend/tap/18/51760.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:110) DevController:
writing {''mac'': ''00:16:3e:3b:b8:30'',
''handle'': ''0'', ''protocol'':
''x86_32-abi'', ''backend-id'':
''0'', ''state'': ''1'',
''backend'':
''/local/domain/0/backend/vif/18/0''} to
/local/domain/18/device/vif/0.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:112) DevController:
writing {''bridge'': ''xenbr0'',
''domain'': ''x'', ''handle'':
''0'', ''script'':
''/etc/xen/scripts/vif-bridge'', ''state'':
''1'', ''frontend'':
''/local/domain/18/device/vif/0'', ''mac'':
''00:16:3e:3b:b8:30'', ''online'':
''1'',
''frontend-id'': ''18''} to
/local/domain/0/backend/vif/18/0.
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:797)
Storing VM details: {''shadow_memory'': ''0'',
''uuid'':
''4482e03f-e48e-a31b-0613-8bc8b89f533a'',
''on_reboot'': ''destroy'',
''start_time'': ''1255348643.69'',
''on_poweroff'': ''destroy'',
''name'': ''x'',
''xend/restart_count'': ''0'',
''vcpus'': ''2'',
''vcpu_avail'': ''3'',
''memory'':
''1024'', ''on_crash'':
''destroy'', ''image'': "(linux (ramdisk
/var/lib/xen/boot_ramdisk.JTQd57) (kernel /var/lib/xen/boot_kernel._q-nx0)
(args ''root=/dev/xvda ro single''))",
''maxmem'': ''1024''}
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:832)
Storing domain details: {''console/ring-ref'':
''5226471'', ''console/port'':
''2'',
''name'': ''x'',
''console/limit'': ''1048576'',
''vm'':
''/vm/4482e03f-e48e-a31b-0613-8bc8b89f533a'',
''domid'': ''18'',
''cpu/0/availability'': ''online'',
''memory/target'': ''1048576'',
''store/ring-ref'': ''5226472'',
''cpu/1/availability'': ''online'',
''store/port'':
''1''}
[2009-10-12 06:57:23 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:1036)
XendDomainInfo.handleShutdownWatch
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices vif.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:160) Waiting for 0.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:496)
hotplugStatusCallback /local/domain/0/backend/vif/18/0/hotplug-status.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:496)
hotplugStatusCallback /local/domain/0/backend/vif/18/0/hotplug-status.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:510)
hotplugStatusCallback 1.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices usb.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices vbd.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices irq.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices vkbd.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices vfb.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices pci.
[2009-10-12 06:57:23 xend 4770] DEBUG (DevController:154) Waiting for
devices ioports.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:154) Waiting for
devices tap.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:160) Waiting for 51712.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:496)
hotplugStatusCallback /local/domain/0/backend/tap/18/51712/hotplug-status.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:510)
hotplugStatusCallback 1.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:160) Waiting for 51728.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:496)
hotplugStatusCallback /local/domain/0/backend/tap/18/51728/hotplug-status.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:510)
hotplugStatusCallback 1.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:160) Waiting for 51760.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:496)
hotplugStatusCallback /local/domain/0/backend/tap/18/51760/hotplug-status.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:510)
hotplugStatusCallback 1.
[2009-10-12 06:57:24 xend 4770] DEBUG (DevController:154) Waiting for
devices vtpm.
[2009-10-12 06:57:24 xend 4770] INFO (XendDomain:380) Domain x (18)
unpaused.
[2009-10-12 06:57:46 xend.XendDomainInfo 4770] DEBUG (XendDomainInfo:1637)
XendDomainInfo.destroy: domid=18
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