[Xen-users] Dom U stuck at boot time- centos.5-2 domU image on RHEL5 dom0!

["Ata E Husain Bohra" <aehusain@xxxxxxxxxxx>]

Dear All, 

I am facing an issue while the startup of a domU centos5-2 image obtained
from jailtime.org on RHEL dom0 system. 
Initially there were problems locating the root file system and then I did a
mkinitrd with xennet and xenblk option and changed the ramdisk in xen config
file. With this addition I was able to get rid of the kernel panic error,
but now the system freezes after initializing service 'sshd', below is the
log at the boot time:

Using config file "./centos.5-2.xen3.cfg".
Started domain centos.5-2
Bootdata ok (command line is  root=/dev/sda1 ro)
Linux version 2.6.18-128.1.6.el5xen (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxx)
(gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Tue Mar 24 12:28:27
EDT 2009
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000010800000 (usable)
No mptable found.
Built 1 zonelists.  Total pages: 67584
Kernel command line:  root=/dev/sda1 ro
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 16384 bytes)
Xen reported: 2613.392 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: 242476k/270336k available (2447k kernel code, 19356k reserved, 1366k
data, 180k init)
Calibrating delay using timer specific routine.. 6536.43 BogoMIPS
(lpj=13072865)
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: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 1024K (64 bytes/line)
(SMP-)alternatives turned off
Brought up 1 CPUs
checking if image is initramfs... it is
Grant table initialized
NET: Registered protocol family 16
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 1F7A0 could not
acquire Mutex [2] [20060707]
No dock devices found.
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 1F7A0 could not
acquire Mutex [2] [20060707]
Brought up 1 CPUs
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 driver usbfs
usbcore: registered new driver hub
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, 262144 bytes)
TCP bind hash table entries: 8192 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
audit: initializing netlink socket (disabled)
type=2000 audit(1240189270.002:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
alga: No test for crc32c (crc32c-generic)
ksign: Installing public key data
Loading keyring
- Added public key 369DB9F7335D033D
- User ID: Red Hat, Inc. (Kernel Module GPG key)
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 v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Bootdata ok (command line is  root=/dev/sda1 ro)
Linux version 2.6.18-128.1.6.el5xen (mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxx)
(gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Tue Mar 24 12:28:27
EDT 2009
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000010800000 (usable)
No mptable found.
Built 1 zonelists.  Total pages: 67584
Kernel command line:  root=/dev/sda1 ro
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 16384 bytes)
Xen reported: 2613.392 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: 242476k/270336k available (2447k kernel code, 19356k reserved, 1366k
data, 180k init)
Calibrating delay using timer specific routine.. 6536.43 BogoMIPS
(lpj=13072865)
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: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 1024K (64 bytes/line)
(SMP-)alternatives turned off
Brought up 1 CPUs
checking if image is initramfs... it is
Grant table initialized
NET: Registered protocol family 16
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 1F7A0 could not
acquire Mutex [2] [20060707]
No dock devices found.
ACPI Exception (utmutex-0262): AE_BAD_PARAMETER, Thread 1F7A0 could not
acquire Mutex [2] [20060707]
Brought up 1 CPUs
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 driver usbfs
usbcore: registered new driver hub
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, 262144 bytes)
TCP bind hash table entries: 8192 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
audit: initializing netlink socket (disabled)
type=2000 audit(1240189270.002:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
Initializing Cryptographic API
alg: No test for crc32c (crc32c-generic)
ksign: Installing public key data
Loading keyring
- Added public key 369DB9F7335D033D
- User ID: Red Hat, Inc. (Kernel Module GPG key)
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 v0.101 (c) Dave Jones
RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Xen virtual console successfully installed as xvc0
Event-channel device installed.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
ide-floppy driver 0.99.newide
usbcore: registered new driver hiddev
usbcore: registered new 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
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
TCP bic registered
Initializing IPsec 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/vif/0
Write protecting the kernel read-only data: 467k
Red Hat nash version 5.1.19.6 starting
Mounting proc filesystem
Mounting sysfs filesystem
Creating /dev
Creating initial device nodes
Setting up hotplug.
Creating block device nodes.
Loading xenblk.ko module
Registering block device major 8
Loading ehci-hcd.ko module
Loading ohci-hcd.ko module
Loading uhci-hcd.ko module
USB Universal Host Controller Interface driver v3.0
Loading jbd.ko module
Loading ext3.ko module
Loading scsi_mod.ko module
SCSI subsystem initialized
Loading sd_mod.ko module
register_blkdev: cannot get major 8 for sd
Loading libata.ko module
Loading sata_nv.ko module
Loading dm-mod.ko module
device-mapper: uevent: version 1.0.3
device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised:
dm-devel@xxxxxxxxxx
Loading dm-log.ko module
Loading dm-mirror.ko module
Loading dm-zero.ko module
Loading dm-snapshot.ko module
Loading dm-mem-cache.ko module
Loading dm-region_hash.ko module
Loading dm-message.ko module
Loading dm-raid45.ko module
device-mapper: dm-raid45: initialized v0.2429
Loading xennet.ko module
netfront: Initialising virtual ethernet driver.
netfront: device eth0 has flipping receive path.
Waiting for driver initialization.
Scanning and configuring dmraid supported devices
Scanning logical volumes
  Reading all physical volumes.  This may take a while...
Activating logical volumes
  Volume group "VolGroup00" not found
Creating root device.
Mounting root filesystem.
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Setting up other filesystems.
Setting up new root fs
no fstab.sys, mounting internal defaults
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
INIT: version 2.86 booting
                Welcome to  CentOS release 5.2 (Final)
                Press 'I' to enter interactive startup.
Setting clock : Sun Apr 19 21:01:37 EDT 2009 [  OK  ]
Starting udev: [  OK  ]
Setting hostname localhost.localdomain:  [  OK  ]
Checking filesystems
Checking all file systems.
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/sda1 
/dev/sda1: clean, 14930/256512 files, 94797/512256 blocks
[  OK  ]
Remounting root filesystem in read-write mode:  [  OK  ]
Mounting local filesystems:  [  OK  ]
Enabling /etc/fstab swaps:  [  OK  ]
INIT: Entering runlevel: 3
Entering non-interactive startup
Bringing up loopback interface:  [  OK  ]
Bringing up interface eth0:  [  OK  ]
Starting system logger: [  OK  ]
Starting kernel logger: [  OK  ]
Starting sshd: [  OK  ]

My xen configuration file is as below:
kernel = "/boot/vmlinuz-2.6.18-128.1.6.el5xen"
ramdisk = "../initrd-2.6.18-128.1.6.el5xen.img"
memory = 256
name = "centos.5-2"
vif = [ 'bridge=xenbr0' ]
dhcp = "off"
disk = ['file:/root/images/centos/centos.5-2.img,sda1,w']
root = "/dev/sda1 ro"

I have tried to google solution for this problem, but no luck till this
moment. Please suggest me what can be done to boot up by domU kernel.


Thanks for your support!

Regards,
Ata




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