Anthony Liguori wrote:
Hi Arun,
I just pulled the latest unstable and could not reproduce. I have an
identical scenario (no /dev/hda only /dev/sda due to SATA).
Also, if the devno resolution code fails you should also get a vbd:
Device not found exception in the logs. The exception you are seeing is
not actually a problem, it just means that stat has failed.
We should probably cleanup that error message.
Can you post a more complete log file? I think the error is being
caused somewhere else.
Hi Anthony,
You're probably not able to reproduce the problem because you're not
using VMX domains?
We're overloading the semantics of
disk = [ 'file:/var/images/min-el3-i386.img,hda,w' ]
to create a IDE hard drive for a VMX domain. So we want to take
advantage of the config file parsing code from the VBD code path, but we
don't want to do other tasks such as connecting the backend/frontend etc.
The log from a successful VMX domain startup looks like:
[2005-08-05 14:54:41 xend] INFO (XendRoot:126) EVENT> xend.domain.create
['fc3', 2]
[2005-08-05 14:54:42 xend] ERROR (process:37) [block-file] ioctl:
LOOP_SET_FD: Device or resource busy
[2005-08-05 14:54:42 xend] DEBUG (blkif:81) Connecting blkif
<BlkifBackend frontend=2 backend=0 id=0>
[2005-08-05 14:54:42 xend] DEBUG (blkif:89) send_be_create <BlkifBackend
frontend=2 backend=0 id=0>
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: cdrom, val: None
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: boot, val: c
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: fda, val: None
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: fdb, val: None
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: localtime, val: None
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: serial, val: None
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: std-vga, val: None
[2005-08-05 14:54:42 xend] DEBUG (image:293) args: isa, val: None
[2005-08-05 14:54:42 xend] INFO (image:352) spawning device models:
/usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '
-vncconnect', '143.183.130.223:5502', '-d', '2', '-p', '19', '-m',
'128', '-boot', 'c', '-hda', '/var/images/min-el3-i386.i
mg', '-vnc', '-k', 'en-us', '-vncport', '5902']
i.e. we were doing things which we really shouldn't be doing, but it
didn't hurt. But it started hurting today :)
In the future, we're also planning to have a VBD driver for unmodified
OSes running on VMX domains and I was thinking of a syntax such as:
disk = [ 'file:/var/images/min-el3-i386.img,vhda,w' ]
Any comments/suggestions on the syntax above to present emulated real
devices as well as virtual devices to an unmodified OS?
-Arun
Complete log for the failed case:
[2005-08-05 14:40:33 xend] INFO (SrvDaemon:300) Xend Daemon started
[2005-08-05 14:40:33 xend] INFO (channel:148) Virq 3 on port 13
[2005-08-05 14:40:33 xend] DEBUG (XendDomainInfo:171)
info={'vcpu_to_cpu': [0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1], 'cpu_time': 20984020436L, 'ssidref': 0, 's
hutdown_reason': 0, 'dying': 0, 'dom': 0, 'running': 1, 'maxmem_kb': -4,
'paused': 0, 'crashed': 0, 'vcpus': 1, 'shutdown':
0, 'mem_kb': 250880, 'cpumap': [-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0], 'blocked': 0}
[2005-08-05 14:40:33 xend] DEBUG (XendDomainInfo:172) config='None'
[2005-08-05 14:40:33 xend] INFO (SrvServer:63) unix
path=/var/lib/xend/xend-socket
[2005-08-05 14:40:33 xend] INFO (XendRoot:126) EVENT> xend.start 0
[2005-08-05 14:40:33 xend] INFO (process:35) [network] network start
bridge=xen-br0 netdev=eth0 antispoof=no
[2005-08-05 14:40:53 xend] DEBUG (image:135) initDomain: cpu=-1
mem_kb=131204 ssidref=-1 dom=1
[2005-08-05 14:40:53 xend] DEBUG (XendDomainInfo:673) init_domain>
Created domain=1 name=ExampleVMXDomain memory=128
[2005-08-05 14:40:53 xend] INFO (XendRoot:126) EVENT> xend.domain.create
['ExampleVMXDomain', 1]
[2005-08-05 14:40:53 xend] INFO (image:190) buildDomain os=vmx dom=1 vcpus=1
[2005-08-05 14:40:53 xend] INFO (image:259) VMX device model port: 3
[2005-08-05 14:40:53 xend] WARNING (XendDomainInfo:924) Unknown config
field memmap
[2005-08-05 14:40:53 xend] WARNING (XendDomainInfo:924) Unknown config
field device_model
[2005-08-05 14:40:53 xend] WARNING (XendDomainInfo:924) Unknown config
field boot
[2005-08-05 14:40:53 xend] WARNING (XendDomainInfo:924) Unknown config
field vnc
[2005-08-05 14:40:53 xend] WARNING (XendDomainInfo:924) Unknown config
field display
[2005-08-05 14:40:53 xend] DEBUG (blkif:24) exception looking up device
number for hda: [Errno 2] No such file or directory
: '/dev/hda'
[2005-08-05 14:40:53 xend] DEBUG (blkif:449) Destroying blkif domain=1
[2005-08-05 14:40:53 xend] DEBUG (blkif:337) Destroying vbd domain=1 id=0
>>>> xend dies here <<<
[2005-08-05 14:43:32 xend] INFO (SrvDaemon:300) Xend Daemon started
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
Home