Re: [Xen-users] Error starting stubdom HVM on Xen-3.4.3-rc4-pre

[Thomas Halinka <lists@xxxxxxxxx>]

Hi Mike,

Am Mittwoch, den 10.03.2010, 09:45 -0500 schrieb Mike Viau:
> Hi there,
> 
> Last night I was trying to start a HVM domU via stubdom-dm device
> model. Initially I did not receive any error to stdout when I did so
> with Xen-3.4.2.
> 
> My Xen-3.4.2 installation works fine with qemu-dm (or regular HVM
> guests). The stubdom-dm guest I was trying to create did not really
> operate as I was unable to connect to the VNC console. The output of
> xm list showed the DomU was there, but it did not show it was actively
> running, almost like it was pause at 0:00:00.
> 
> This morning I installed Xen-3.4.3-rc4-pre with the same domU HVM
> stubdom configuration and got this message.
> 
> localhost:~/XENSTORE/router#xm create router
> 
> Using config file "./router".
> Error: Device 768 (vbd) could not be connected.
> File /root/XENSTORE/router/hd.img is loopback-mounted
> through /dev/loop1,
> which is mounted in a guest domain,
> and so cannot be mounted now.

So, your domU has this disk mounted or used as loop-device, which 

losetup -a

should show. The Disk can be detached through 

losetup -d

This should help getting your VM start.

  # man losetup 

hth,

thomas


> 
> AND
> 
> localhost:/var/log/xen# cat qemu-dm-router-dm.log
> 
> domid: 2
> Warning: vlan 0 is not connected to host network
> Watching /local/domain/0/device-model/2/logdirty/next-active
> Watching /local/domain/0/device-model/2/command
> char device redirected to /dev/pts/2
> /usr/local/src/xen-3.4-testing.hg/tools/ioemu-dir/hw/xen_blktap.c:628:
> Init blktap pipes
> bind() failed    <<-- This was also the last line in the log when
> using Xen-3.4.2
> 
> 
> AND
> 
> 
> localhost:~/XENSTORE/router# xm info
> host                   : localhost.site
> release                : 2.6.33-xen
> version                : #2 SMP Sat Mar 6 15:26:37 EST 2010
> machine                : x86_64
> nr_cpus                : 8
> nr_nodes               : 1
> cores_per_socket       : 4
> threads_per_core       : 2
> cpu_mhz                : 2800
> hw_caps                :
> bfebfbff:28100800:00000000:00000340:0098e3fd:00000000:00000001:00000000
> virt_caps              : hvm
> total_memory           : 8182
> free_memory            : 7061
> node_to_cpu            : node0:0-7
> node_to_memory         : node0:7061
> xen_major              : 3
> xen_minor              : 4
> xen_extra              : .3-rc4-pre
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
> hvm-3.0-x86_32p hvm-3.0-x86_64
> xen_scheduler          : credit
> xen_pagesize           : 4096
> platform_params        : virt_start=0xffff800000000000
> xen_changeset          : Tue Mar 09 18:15:52 2010 +0000
> 19924:6e72f8c3c017
> cc_compiler            : gcc version 4.3.2 (Debian 4.3.2-1.1)
> cc_compile_by          : root
> cc_compile_domain      : site
> cc_compile_date        : Wed Mar 10 08:46:50 EST 2010
> xend_config_format     : 4
> 
> 
> AND the configuration file
> 
> 
> kernel = "/usr/lib/xen/boot/hvmloader"
> builder='hvm'
> memory = 1024
> name = "router"
> vcpus=1
> pae=1
> acpi=1
> apic=1
> vif = [ 'type=ioemu, mac=00:16:3e:11:11:01, bridge=br100',
>         'type=ioemu, mac=00:16:3e:11:11:02, bridge=br101',
>         'type=ioemu, mac=00:16:3e:11:11:03, bridge=br200',
>         'type=ioemu, mac=00:16:3e:11:11:04, bridge=br300',
>         'type=ioemu, mac=00:16:3e:11:11:05, bridge=br400' ]
> disk = [ 'file:/root/XENSTORE/router/hd.img,hda,w',
> 
> 'file:/root/XENSTORE/router/pfSense-1.2.3-RELEASE-LiveCD-Installer.iso,
> hdc:cdrom,r' ]
> device_model = '/usr/lib/xen/bin/stubdom-dm'
> boot="cda"
> sdl=0
> opengl=1
> vnc=1
> vnclisten="10.254.2.81"
> vncdisplay=0
> vncunused=0
> vncpasswd='router'
> stdvga=0
> 
> 
> LASTLY the router-dm file
> 
> #This file is autogenerated, edit router instead!
> kernel = '/usr/lib/xen/boot/ioemu-stubdom.gz'
> vfb = ['sdl=0, opengl=1, xauthority=/root/.Xauthority, vnc=1,
> vncdisplay=0, vnclisten=10.254.2.81, vncunused=0, vncpasswd=router']
> disk =
> [ 
> 'file:/root/XENSTORE/router/hd.img,hda:disk,w','file:/root/XENSTORE/router/pfSense-1.2.3-RELEASE-LiveCD-Installer.iso,hdc:cdrom,r'
>  ]
> vif =
> [ 
> 'mac=00:16:3e:11:11:01,bridge=br100','mac=00:16:3e:11:11:02,bridge=br101','mac=00:16:3e:11:11:03,bridge=br200','mac=00:16:3e:11:11:04,bridge=br300','mac=00:16:3e:11:11:05,bridge=br400'
>  ]
> 
> 
> 
> Can someone suggest what I might have done wrong, thanks!
> 
> 
> -M
> 
> 
> 
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