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[Xen-users] Para virtualized guest on Xen

To: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Para virtualized guest on Xen
From: "Kumar, Venkat" <Venkat.Kumar@xxxxxxx>
Date: Wed, 11 Jun 2008 18:23:44 +0800
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Thread-topic: Para virtualized guest on Xen

I am trying to create a para-virtualized guest with the same kernel image and initrd image as dom0.

The configuration is below

================================================================================

kernel = "/boot/vmlinuz-2.6.21.7-3.fc8xen"

ramdisk = "/boot/initrd-2.6.21.7-3.fc8xen.img"

memory = 428

name = "fedora.fc8"

vif = [ '' ]

dhcp = ""

disk = ['tap:aio:/var/lib/xen/images/fedora.fc8.img,xvda1,w', 'tap:aio:/var/lib/xen/images/fedora.swap,xvda2,w']

root = "/xvda1 ro"

================================================================================

 

The file system and swap images are downloaded from jailtime.org.

 

But while creating a domain the guest crashes and here is what it has to say

 

=========================================================================================================================

[root@localhost Desktop]# xm create fedora.fc8.xen3.cfg -c

Using config file "./fedora.fc8.xen3.cfg".

Started domain fedora.fc8

Linux version 2.6.21.7-3.fc8xen (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.1.2 20070925 (Red Hat 4.1.2-33)) #1 SMP Thu Mar 20 14:58:12 EDT 2008

Command line: root=/dev/sda1 ro ip=:1.2.3.4::::eth0:

BIOS-provided physical RAM map:

 Xen: 0000000000000000 - 000000001b400000 (usable)

end_pfn_map = 111616

Zone PFN ranges:

  DMA             0 ->   111616

  DMA32      111616 ->   111616

  Normal     111616 ->   111616

early_node_map[1] active PFN ranges

    0:        0 ->   111616

No mptable found.

PERCPU: Allocating 26496 bytes of per cpu data

Built 1 zonelists.  Total pages: 106528

Kernel command line: root=/dev/sda1 ro ip=:1.2.3.4::::eth0:

Initializing CPU#0

PID hash table entries: 2048 (order: 11, 16384 bytes)

Xen reported: 2657.322 MHz processor.

Console: colour dummy device 80x25

Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)

Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)

Software IO TLB disabled

Memory: 416380k/446464k available (2265k kernel code, 21224k reserved, 1351k data, 200k init)

Calibrating delay using timer specific routine.. 5318.18 BogoMIPS (lpj=2659094)

Security Framework v1.0.0 initialized

SELinux:  Initializing.

selinux_register_security:  Registering secondary module capability

Capability LSM initialized as secondary

Mount-cache hash table entries: 256

CPU: L1 I cache: 32K, L1 D cache: 32K

CPU: L2 cache: 4096K

SMP alternatives: switching to UP code

Freeing SMP alternatives: 28k freed

Brought up 1 CPUs

NET: Registered protocol family 16

Brought up 1 CPUs

PCI: Fatal: No config space access function found

PCI: setting up Xen PCI frontend stub

ACPI: Interpreter disabled.

Linux Plug and Play Support v0.97 (c) Adam Belay

pnp: PnP ACPI: disabled

xen_mem: Initialising balloon driver.

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

PCI: System does not support PCI

PCI: System does not support PCI

NetLabel: Initializing

NetLabel:  domain hash size = 128

NetLabel:  protocols = UNLABELED CIPSOv4

NetLabel:  unlabeled traffic allowed by default

NET: Registered protocol family 2

IP route cache hash table entries: 4096 (order: 3, 32768 bytes)

TCP established hash table entries: 16384 (order: 6, 393216 bytes)

TCP bind hash table entries: 16384 (order: 6, 262144 bytes)

TCP: Hash tables configured (established 16384 bind 16384)

TCP reno registered

checking if image is initramfs... it is

Freeing initrd memory: 7896k freed

audit: initializing netlink socket (disabled)

audit(1213240841.239:1): initialized

VFS: Disk quotas dquot_6.5.1

Dquot-cache hash table entries: 512 (order 0, 4096 bytes)

ksign: Installing public key data

Loading keyring

io scheduler noop registered

io scheduler anticipatory registered

io scheduler deadline registered

io scheduler cfq registered (default)

pci_hotplug: PCI Hot Plug PCI Core version: 0.5

rtc: IRQ 8 is not free.

Non-volatile memory driver v1.2

Linux agpgart interface v0.102 (c) Dave Jones

RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize

input: Macintosh mouse button emulation as /class/input/input0

Xen virtual console successfully installed as xvc0

Linux version 2.6.21.7-3.fc8xen (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.1.2 20070925 (Red Hat 4.1.2-33)) #1 SMP Thu Mar 20 14:58:12 EDT 2008

Command line: root=/dev/sda1 ro ip=:1.2.3.4::::eth0:

BIOS-provided physical RAM map:

 Xen: 0000000000000000 - 000000001b400000 (usable)

end_pfn_map = 111616

Zone PFN ranges:

  DMA             0 ->   111616

  DMA32      111616 ->   111616

  Normal     111616 ->   111616

early_node_map[1] active PFN ranges

    0:        0 ->   111616

No mptable found.

PERCPU: Allocating 26496 bytes of per cpu data

Built 1 zonelists.  Total pages: 106528

Kernel command line: root=/dev/sda1 ro ip=:1.2.3.4::::eth0:

Initializing CPU#0

PID hash table entries: 2048 (order: 11, 16384 bytes)

Xen reported: 2657.322 MHz processor.

Console: colour dummy device 80x25

Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)

Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)

Software IO TLB disabled

Memory: 416380k/446464k available (2265k kernel code, 21224k reserved, 1351k data, 200k init)

Calibrating delay using timer specific routine.. 5318.18 BogoMIPS (lpj=2659094)

Security Framework v1.0.0 initialized

SELinux:  Initializing.

selinux_register_security:  Registering secondary module capability

Capability LSM initialized as secondary

Mount-cache hash table entries: 256

CPU: L1 I cache: 32K, L1 D cache: 32K

CPU: L2 cache: 4096K

SMP alternatives: switching to UP code

Freeing SMP alternatives: 28k freed

Brought up 1 CPUs

NET: Registered protocol family 16

Brought up 1 CPUs

PCI: Fatal: No config space access function found

PCI: setting up Xen PCI frontend stub

ACPI: Interpreter disabled.

Linux Plug and Play Support v0.97 (c) Adam Belay

pnp: PnP ACPI: disabled

xen_mem: Initialising balloon driver.

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

PCI: System does not support PCI

PCI: System does not support PCI

NetLabel: Initializing

NetLabel:  domain hash size = 128

NetLabel:  protocols = UNLABELED CIPSOv4

NetLabel:  unlabeled traffic allowed by default

NET: Registered protocol family 2

IP route cache hash table entries: 4096 (order: 3, 32768 bytes)

TCP established hash table entries: 16384 (order: 6, 393216 bytes)

TCP bind hash table entries: 16384 (order: 6, 262144 bytes)

TCP: Hash tables configured (established 16384 bind 16384)

TCP reno registered

checking if image is initramfs... it is

Freeing initrd memory: 7896k freed

audit: initializing netlink socket (disabled)

audit(1213240841.239:1): initialized

VFS: Disk quotas dquot_6.5.1

Dquot-cache hash table entries: 512 (order 0, 4096 bytes)

ksign: Installing public key data

Loading keyring

io scheduler noop registered

io scheduler anticipatory registered

io scheduler deadline registered

io scheduler cfq registered (default)

pci_hotplug: PCI Hot Plug PCI Core version: 0.5

rtc: IRQ 8 is not free.

Non-volatile memory driver v1.2

Linux agpgart interface v0.102 (c) Dave Jones

RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize

input: Macintosh mouse button emulation as /class/input/input0

Xen virtual console successfully installed as xvc0

Event-channel device installed.

usbcore: registered new interface driver hiddev

usbcore: registered new interface driver usbhid

drivers/usb/input/hid-core.c: v2.6:USB HID core driver

PNP: No PS/2 controller found. Probing ports directly.

i8042.c: No controller found.

mice: PS/2 mouse device common for all mice

TCP bic registered

Initializing XFRM netlink socket

NET: Registered protocol family 1

NET: Registered protocol family 17

XENBUS: Device with no driver: device/vbd/2049

XENBUS: Device with no driver: device/vbd/2050

XENBUS: Device with no driver: device/vif/0

XENBUS: Device with no driver: device/console/0

drivers/rtc/hctosys.c: unable to open rtc device (rtc0)

Freeing unused kernel memory: 200k freed

Write protecting the kernel read-only data: 981k

Red Hat nash version 6.0.19 starting

Mounting proc filesystem

Mounting sysfs filesystem

Creating /dev

Creating initial device nodes

Setting up hotplug.

Creating block device nodes.

Loading ehci-hcd.ko module

Loading ohci-hcd.ko module

Loading uhci-hcd.ko module

USB Universal Host Controller Interface driver v3.0

Loading mbcache.ko module

Loading jbd.ko module

Loading ext3.ko module

Loading scsi_mod.ko module

SCSI subsystem initialized

Loading sd_mod.ko module

Loading libata.ko module

Loading ata_piix.ko module

Waiting for driver initialization.

Loading ata_generic.ko module

Loading pata_marvell.ko module

Waiting for driver initialization.

Creating root device.

Mounting root filesystem.

mount: could not find filesystem '/dev/root'

Setting up other filesystems.

Setting up new root fs

setuproot: moving /dev failed: No such file or directory

no fstab.sys, mounting internal defaults

setuproot: error mounting /proc: No such file or directory

setuproot: error mounting /sys: No such file or directory

Switching to new root and running init.

unmounting old /dev

unmounting old /proc

unmounting old /sys

switchroot: mount failed: No such file or directory

Booting has failed.

Kernel panic - not syncing: Attempted to kill init!

=========================================================================================================================

Looks like it is not able to find root file system to mount.

 

Thx,

Venkat

 

================================

Venkata Kumar Duvvuru,

LSI Engenio,

Adv. Development,

Bangalore.

Mob: +91-9880318542

Off : +91-80-41978700 ( Extn : 3544 )

================================

 

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