[Fedora-xen] Re: xen aware guest os

Wed Apr 4 10:18:19 UTC 2007

Hi

 I am using xen 3.0.2 on FC5. I followed all the steps given in this link*
http://lists.xensource.com/archives/html/xen-devel/2005-01/msg00434.html*.

 I used linux-2.6.16 to build the dom0.I could successfully build it and
start dom0.

 Now for creating guest domain, I followed all the steps as given in the
document.

I created two partitions sda5 and sda6, and created ext3 file system and
swap in them respectively.

*This is my .config file:*

kernel = "/boot/vmlinuz-2.6.16-xenU"

ramdisk = "/boot/initrd-2.6.16-xenU.img"

memory = 256

vif = [ '' ]

disk = [ 'phy:/dev/sda5,hda1,w','phy:/dev/sda6,hda2,w' ]

root = "/dev/hda1 ro"

*This is my fstab file:*

/dev/hda1                /                       ext3    defaults        1 1

devpts                   /dev/pts               devpts  gid=5,mode=620  0 0

tmpfs                    /dev/shm              tmpfs   defaults        0 0

proc                     /proc                     proc    defaults        0
0

sysfs                    /sys                     sysfs   defaults        0
0

/dev/hda2              swap                    swap    defaults        0 0

*When I started the guest domain using xm create –c mydomain, I got a kernel
panic:*

* *

* *

Using config file "/etc/xen/goddomain".

Started domain Domain1

Linux version 2.6.16-xenU (root at WXSimulator) (gcc version 4.1.0 20060304
(Red Hat 4.1.0-3)) #1 SMP Sat Mar 31 06:40:21 IST 2007

BIOS-provided physical RAM map:

 Xen: 0000000000000000 - 0000000010000000 (usable)

0MB HIGHMEM available.

264MB LOWMEM available.

IRQ lockup detection disabled

Built 1 zonelists

Kernel command line:  root=/dev/hda1 rw

Enabling fast FPU save and restore... done.

Enabling unmasked SIMD FPU exception support... done.

Initializing CPU#0

PID hash table entries: 2048 (order: 11, 32768 bytes)

Xen reported: 2800.096 MHz processor.

Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

Software IO TLB disabled

vmalloc area: d1000000-fb7fe000, maxmem 33ffe000

Memory: 254080k/270336k available (1780k kernel code, 7736k reserved, 520k
data, 132k init, 0k highmem)

Checking if this processor honours the WP bit even in supervisor mode... Ok.

Calibrating delay using timer specific routine.. 5602.82 BogoMIPS
(lpj=28014113)

Mount-cache hash table entries: 512

CPU: Trace cache: 12K uops, L1 D cache: 16K

CPU: L2 cache: 2048K

Checking 'hlt' instruction... OK.

Brought up 1 CPUs

migration_cost=0

checking if image is initramfs... it is

Freeing initrd memory: 1741k freed

Grant table initialized

NET: Registered protocol family 16

Brought up 1 CPUs

xen_mem: Initialising balloon driver.

Initializing Cryptographic API

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler deadline registered

io scheduler cfq registered

i8042.c: No controller found.

RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize

Xen virtual console successfully installed as tty1

Event-channel device installed.

netfront: Initialising virtual ethernet driver.

mice: PS/2 mouse device common for all mice

NET: Registered protocol family 2

Registering block device major 3

IP route cache hash table entries: 4096 (order: 2, 16384 bytes)

TCP established hash table entries: 16384 (order: 5, 131072 bytes)

TCP bind hash table entries: 16384 (order: 5, 131072 bytes)

TCP: Hash tables configured (established 16384 bind 16384)

TCP reno registered

TCP bic registered

NET: Registered protocol family 1

NET: Registered protocol family 17

Using IPI No-Shortcut mode

XENBUS: Timeout connecting to devices!

Freeing unused kernel memory: 132k freed

  ***************************************************************

  ***************************************************************

  ** WARNING: Currently emulating unsupported memory accesses  **

  **          in /lib/tls glibc libraries. The emulation is    **

  **          slow. To ensure full performance you should      **

  **          install a 'xen-friendly' (nosegneg) version of   **

  **          the library, or disable tls support by executing **

  **          the following as root:                           **

  **          mv /lib/tls /lib/tls.disabled                    **

  ** Offending process: init (pid=1)                           **

  ***************************************************************

  ***************************************************************

Continuing...

Red Hat nash version 5.0.32 starting

Mounting proc filesystem

Mounting sysfs filesystem

Creating /dev

Creating initial device nodes

Setting up hotplug.

Creating block device nodes.

Creating root device.

Mounting root filesystem.

kjournald starting.  Commit interval 5 seconds

EXT3-fs: mounted filesystem with ordered data mode.

Setting up other filesystems.

Setting up new root fs

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

Kernel panic - not syncing: Attempted to kill init!

*I tried copying content from fstab to fstab.sys, Then the new set of
errors:*