Re: [Xen-devel] CentOS PV DomU freezing while booting

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Dec 06, 2010 at 12:49:23PM -0600, Srujan D. Kotikela wrote:
>    Hi,
> 
>    I tried that one. It continued a little further and got stuck ata
>    different point. This the booting is halted:
> 
>    O/P
> 
>    Started domain DomU (id=3)
>                              Bootdata ok (command line is root=/dev/xvda2 ro
>    console=xvc0 xencons=tty)
>    Linux version 2.6.18.8 (xxxxxxxxxxxxxx) (gcc version 4.1.2 20080704 (Red
>    Hat 4.1.2-48)) #4 SMP Mon Nov 29 16:39:44 CST 2010
>    BIOS-provided physical RAM map:
>     Xen: 0000000000000000 - 0000000040800000 (usable)
>    No mptable found.
>    Built 1 zonelists.  Total pages: 260580
>    Kernel command line: root=/dev/xvda2 ro console=xvc0 xencons=tty
>    Initializing CPU#0
>    PID hash table entries: 4096 (order: 12, 32768 bytes)
>    Xen reported: 2593.498 MHz processor.
>    Console: colour dummy device 80x25
>    Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
>    Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
>    Software IO TLB disabled
>    Memory: 1016576k/1056768k available (2048k kernel code, 31904k reserved,
>    887k data, 180k init)
>    Calibrating delay using timer specific routine.. 5188.31 BogoMIPS
>    (lpj=25941590)
>    Security Framework v1.0.0 initialized
>    Capability LSM initialized
>    Mount-cache hash table entries: 256
>    CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
>    CPU: L2 Cache: 512K (64 bytes/line)
>    SMP alternatives: switching to UP code
>    Freeing SMP alternatives: 28k freed
>    Brought up 1 CPUs
>    migration_cost=0
>    checking if image is initramfs... it is
>    Freeing initrd memory: 7736k freed
>    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
>    suspend: event channel 6
>    xen_mem: Initialising balloon driver.
>    PCI: System does not support PCI
>    PCI: System does not support PCI
>    NET: Registered protocol family 2
>    IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
>    TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
>    TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
>    TCP: Hash tables configured (established 131072 bind 65536)
>    TCP reno registered
>    IA-32 Microcode Update Driver: v1.14a-xen <[1]tigran@xxxxxxxxxxx>
>    audit: initializing netlink socket (disabled)
>    audit(1291660905.536:1): initialized
>    VFS: Disk quotas dquot_6.5.1
>    Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
>    Initializing Cryptographic API
>    io scheduler noop registered
>    io scheduler anticipatory registered
>    io scheduler deadline registered
>    io scheduler cfq registered (default)
>    Non-volatile memory driver v1.2
>    RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
>    loop: loaded (max 8 devices)
>    Xen virtual console successfully installed as tty1
>    Event-channel device installed.
>    blktap_device_init: blktap device major 254
>    blktap_ring_init: blktap ring major: 253
>    netfront: Initialising virtual ethernet driver.
>    Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
>    ide: Assuming 50MHz system bus speed for PIO modes; override with
>    idebus=xx
>    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
>    NET: Registered protocol family 1
>    NET: Registered protocol family 17
>    PCI IO multiplexer device installed.
>    xen-vbd: registered block device major 202
>    blkfront: xvda2: barriers enabled
>    blkfront: xvda1: barriers enabled
>    BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
>    EDD information not available.
>    Freeing unused kernel memory: 180k freed
>    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 usbcore.ko module
>    usbcore: registered new driver usbfs
>    usbcore: registered new driver hub
>    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
>    Loading libata.ko module
>    Loading ahci.ko module
>    Loading ide-disk.ko module
>    Loading dm-mod.ko module
>    device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised:
>    [2]dm-devel@xxxxxxxxxx
>    Loading dm-mirror.ko module
>    Loading dm-zero.ko module
>    Loading dm-snapshot.ko module
>    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.
>    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
>    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 5.5 (Final)
>                    Press 'I' to enter interactive startup.
>    Cannot access the Hardware Clock via any known method.
>    Use the --debug option to see the details of our search for an access
>    method.
>    Setting clock : Mon Dec  6 13:42:09 EST 2010 [  OK  ]
>    Starting udev: [  OK  ]
>    Setting hostname DomU:  [  OK  ]
>    No devices found
>    Setting up Logical Volume Management: [  OK  ]
>    Checking filesystems
>    Checking all file systems.
>    [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/xvda2
>    /dev/xvda2: clean, 22945/524288 files, 239743/1048576 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  ]
>    Mounting other filesystems:  [  OK  ]
>    Generating SSH1 RSA host key: [  OK  ]
>    Generating SSH2 RSA host key: [  OK  ]
>    Generating SSH2 DSA host key: [  OK  ]
>    Starting sshd: [  OK  ]
>    INIT: Id "1" respawning too fast: disabled for 5 minutes
>    INIT: no more processes left in this runlevel
> 
>    ------------>> FREEZE <<-------------------------

This looks like you don't have a getty configured for the console 
device.. and thus you won't get a login prompt.

See here for tips configuring the getty: 
http://wiki.xensource.com/xenwiki/XenCommonProblems

Also the "respawning too fast" means there's a getty configured
for non-existing console device.

-- Pasi

>    --
>    Srujan D. Kotikela
> 
>    On Fri, Dec 3, 2010 at 3:04 PM, Vasiliy G Tolstov <[3]v.tolstov@xxxxxxxxx>
>    wrote:
> 
>      On Fri, 2010-12-03 at 14:05 -0600, Srujan D. Kotikela wrote:
>      > Hi,
>      >
>      > I have created a CentOS DomU on CentOS Dom0 (xen 3.4.3) using
>      > xen-tools and the following command:
>      >
>      >         xen-create-image --hostname=TestDomU --ip=192.168.122.2
>      >         --dir=/xen --dist=centos-5 --install-method=rinse
>      >         --gateway=192.168.122.1 --netmask=255.255.255.0
>      >         --mirror=[4]mirror.centos.org/centos/5.5/os/x86_64
>      > Then I started booting the system using the following command
>      >
>      > [root@mgomathi-lab2 das]# xm create /etc/xen/TestDomU.cfg -c
>      > Using config file "/etc/xen/TestDomU.cfg".
>      > Started domain TestDomU (id=1)
>      >                               Bootdata ok (command line is
>      > root=/dev/xvda2 ro )
> 
>      You need to provide console=xvc0 xencons=tty to extra of config file
> 
> References
> 
>    Visible links
>    1. mailto:tigran@xxxxxxxxxxx
>    2. mailto:dm-devel@xxxxxxxxxx
>    3. mailto:v.tolstov@xxxxxxxxx
>    4. http://mirror.centos.org/centos/5.5/os/x86_64

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> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel


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