Re: [Xen-users] Guest boot problem on centOS 5.4

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Mar 01, 2010 at 12:05:35PM +0530, Akshay Joglekar wrote:
>    Hi all,
> 
>    I am using a centOS 5.4 system with Xen installed.
> 
>    When I try to create a new VM instance in dom0 using virt-install, the
>    process hangs up at:
> 
>    Write protecting the kernel read-only data: 390k
> 
>    Following is the complete output:
> 
>    Linux version 2.6.18-164.el5xen (mockbuild@xxxxxxxxxxxxxxxxxxxx) (gcc
>    version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Thu Sep 3 04:47:32 EDT
>    2009
>    BIOS-provided physical RAM map:
>     Xen: 0000000000000000 - 0000000010800000 (usable)
>    0MB HIGHMEM available.
>    264MB LOWMEM available.
>    NX (Execute Disable) protection: active
>    ACPI in unprivileged domain disabled
>    Built 1 zonelists.  Total pages: 67584
>    Kernel command line:
>    method=http://www.gtlib.gatech.edu/pub/centos/5.4/os/i386/
>    Enabling fast FPU save and restore... done.
>    Enabling unmasked SIMD FPU exception support... done.
>    Initializing CPU#0
>    CPU 0 irqstacks, hard=c0750000 soft=c0730000
>    PID hash table entries: 2048 (order: 11, 8192 bytes)
>    Xen reported: 1995.001 MHz processor.
>    Console: colour dummy device 80x25
>    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-f4ffe000, maxmem 2d7fe000
>    Memory: 246016k/270336k available (2162k kernel code, 15832k reserved,
>    887k data, 176k init, 0k highmem)
>    Checking if this processor honours the WP bit even in supervisor mode...
>    Ok.
>    Calibrating delay using timer specific routine.. 4990.95 BogoMIPS
>    (lpj=9981902)
>    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: 512
>    CPU: L1 I cache: 32K, L1 D cache: 32K
>    CPU: L2 cache: 1024K
>    Checking 'hlt' instruction... OK.
>    SMP alternatives: switching to UP code
>    Freeing SMP alternatives: 13k freed
>    Brought up 1 CPUs
>    checking if image is initramfs... it is
>    Freeing initrd memory: 8464k freed
>    Grant table initialized
>    NET: Registered protocol family 16
>    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: 2, 16384 bytes)
>    TCP established hash table entries: 16384 (order: 5, 131072 bytes)
>    TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
>    TCP: Hash tables configured (established 16384 bind 8192)
>    TCP reno registered
>    audit: initializing netlink socket (disabled)
>    type=2000 audit(1267422085.998:1): initialized
>    VFS: Disk quotas dquot_6.5.1
>    Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
>    Initializing Cryptographic API
>    alg: No test for crc32c (crc32c-generic)
>    ksign: Installing public key data
>    Loading keyring
>    - Added public key 581431131FF6A527
>    - User ID: CentOS (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
>    brd: module loaded
>    Xen virtual console successfully installed as xvc0
>    Event-channel device installed.
>    Console: switching to colour frame buffer device 100x37
>    input: Xen Virtual Keyboard/Mouse as /class/input/input0
>    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
>    Using IPI No-Shortcut mode
>    XENBUS: Device with no driver: device/vbd/51712
>    XENBUS: Device with no driver: device/vif/0
>    Initalizing network drop monitor service
>    Freeing unused kernel memory: 176k freed
>    Write protecting the kernel read-only data: 390k
> 
>    Can someone please help me out? Thanks in advance.
> 

So it doesn't start initrd execution? 
Try restarting xenconsoled in dom0 and see if that helps.

Also please paste your virt-install cmdline.

-- Pasi


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