[Xen-bugs] [Bug 1629] New: Can't create qcow image with cdrom option

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1629

           Summary: Can't create qcow image with cdrom option
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: Tools
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jiajun.xu@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32/ia32e
Guest Arch (ia32/ia32e/IA64): 
Guest OS Type (Linux/Windows):
Change Set: 21624
Hardware: Stoakley/Gulftown-HEDT
Other:
xen-changeset:   21624:b9c541d9c138

pvops git:
commit b29254c40dac94960fd3887275c65c83b71086ea
Merge: cc867b2... 9d85e25...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit 6392763643311272590ef5c6f75ba11d5b132585
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Wed Jun 9 17:10:59 2010 +0100


Bug detailed description:
--------------------------
When set the disk configuration section to tap:qcow:<qcow-file>,the guest can't
be able to create. it reports following error.

[root@vt-dp6 myimg]$ xm cr test.hvm
Using config file "./test.hvm".
Error: need more than 1 value to unpack

When you use disk option (disk = [
'tap:qcow:/var/images/min-el3-i386.img,hda,w'] )in your xen config file, the
guest can be created.
But if the disk option is "disk = [
'tap:qcow:/var/images/min-el3-i386.img,hda,w','hdc:cdrom,r']", this bug would
happen.

Reproduce steps:
----------------
1.prepare the qcow file.
2.prepare the configurations file.
3. xm cr <your hvm config file>




Xend log shows:

[2010-06-18 16:25:07 5277] INFO (XendDomainInfo:168) Recreating domain 0, UUID
00000000-0000-0000-0000-000000000000. at /local/domain/0
[2010-06-18 16:25:07 5277] DEBUG (XendDomain:464) Adding Domain: 0
[2010-06-18 16:25:07 5277] DEBUG (XendDomain:398) number of vcpus to use is 0
[2010-06-18 16:25:07 5277] DEBUG (XendDomainInfo:1877)
XendDomainInfo.handleShutdownWatch
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: VBD.set_device not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: VBD.set_type not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call:
session.get_all_records not found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: event.get_record not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: event.get_all not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: VIF.set_device not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: VIF.set_MAC not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: VIF.set_MTU not
found
[2010-06-18 16:25:07 5277] WARNING (XendAPI:708) API call: debug.get_all not
found
[2010-06-18 16:25:07 5277] INFO (XMLRPCServer:161) Opening Unix domain socket
XML-RPC server on /var/run/xend/xen-api.sock; authentication has been disabled
for this server.
[2010-06-18 16:25:07 5277] INFO (XMLRPCServer:161) Opening Unix domain socket
XML-RPC server on /var/run/xend/xmlrpc.sock.
[2010-06-18 16:26:03 5277] ERROR (xmlrpclib2:178) Internal error handling
xend.domain.create
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/util/xmlrpclib2.py", line 131,
in _marshaled_dispatch
    response = self._dispatch(method, params)
  File "/usr/lib64/python2.4/SimpleXMLRPCServer.py", line 406, in _dispatch
    return func(*params)
  File "/usr/lib64/python2.4/site-packages/xen/xend/server/XMLRPCServer.py",
line 80, in domain_create
    info = XendDomain.instance().domain_create(config)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py", line 982,
in domain_create
    dominfo = XendDomainInfo.create(config)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line
97, in create
    domconfig = XendConfig.XendConfig(sxp_obj = config)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendConfig.py", line 346,
in __init__
    self._sxp_to_xapi(sxp_obj)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendConfig.py", line 862,
in _sxp_to_xapi
    cfg = self._parse_sxp(sxp_cfg)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendConfig.py", line 725,
in _parse_sxp
    self.device_add(dev_type, cfg_sxp = config, target = cfg)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendConfig.py", line 1453,
in device_add
    ret_uuid = self.device_duplicate_check(dev_type, dev_info, target, config)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendConfig.py", line 1245,
in device_duplicate_check
    o_blkdev_file = blkdev_uname_to_file(o_dev_uname)
  File "/usr/lib64/python2.4/site-packages/xen/util/blkif.py", line 95, in
blkdev_uname_to_file
    return _parse_uname(uname)[0]
  File "/usr/lib64/python2.4/site-packages/xen/util/blkif.py", line 90, in
_parse_uname
    (taptype, fn) = fn.split(":", 2)[1:3]
ValueError: need more than 1 value to unpack


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