[Xen-users] boot DomU using Dom0 Kernel? -- Sisu

[Sisu Xi <xisisu@xxxxxxxxx>]

Hi, all:

I installed Xen 4.1.2 compiled from source, Dom0 is CentOS 6.2, using
Linux kernel 3.4.0 compiled from source, after the rt-patch.

Now I want to boot DomU using the patched Dom0 Kernel, my
configuration file looks like:
name="vm1"
vcpus=1
cpus="1"
memory=512
disk=['file:/home/xisisu/Desktop/VM/vm1.img,xvda,w']
vif=['bridge=eth0']
kernel="/boot/vmlinuz-3.4.0-rt7"
extra="ro root=/dev/mapper/vg_null001cc0b1994f-lv_root rd_NO_LUKS
rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8
rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD
SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto  KEYBOARDTYPE=pc
KEYTABLE=us rd_NO_DM"
on_reboot='restart'
on_crash='restart'

The item in menu.lst looks like:
title CentOS (3.4.0-rt7)
        root (hd0,0)
        kernel /vmlinuz-3.4.0-rt7 ro
root=/dev/mapper/vg_null001cc0b1994f-lv_root rd_NO_LUKS
rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8
rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD quiet
SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto  KEYBOARDTYPE=pc
KEYTABLE=us rd_NO_DM
        initrd /initramfs-3.4.0-rt7.img

title Credit Xen 4.1.2, CentOS (3.4.0)
        root (hd0,0)
        kernel /xen.gz dom0_mem=2048M dom0_max_vcpus=1 dom0_vcpus_pin 
sched=credit
        module /vmlinuz-3.4.0-rt7 ro
root=/dev/mapper/vg_null001cc0b1994f-lv_root rd_NO_LUKS
rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8
rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD
SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto  KEYBOARDTYPE=pc
KEYTABLE=us rd_NO_DM
        module /initramfs-3.4.0-rt7.img

However, when I boot DomU in this way, it would halt. the output is:
[xisisu@null-001cc0b1994f VM]$ sudo xl create -c vm2.run
Parsing config file vm2.run
Daemon running with PID 4030
                            Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 3.4.0-rt7 (xisisu@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc
version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC) ) #2 SMP PREEMPT RT Wed
May 23 00:03:32 CDT 2012
Command line: ro root=/dev/mapper/vg_null001cc0b1994f-lv_root
rd_NO_LUKS rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8
rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD
SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto  KEYBOARDTYPE=pc
KEYTABLE=us rd_NO_DM
ACPI in unprivileged domain disabled
Released 0 pages of unused memory
Set 0 page(s) to 1-1 mapping
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 00000000000a0000 (usable)
 Xen: 00000000000a0000 - 0000000000100000 (reserved)
 Xen: 0000000000100000 - 0000000020800000 (usable)
Notice: NX (Execute Disable) protection missing in CPU!
DMI not present or invalid.
No AGP bridge found
last_pfn = 0x20800 max_arch_pfn = 0x400000000
init_memory_mapping: 0000000000000000-0000000020800000
crashkernel: memory value expected
No NUMA configuration found
Faking a node at 0000000000000000-0000000020800000
Initmem setup node 0 0000000000000000-0000000020800000
  NODE_DATA [000000001ffda000 - 000000001fffffff]
Zone PFN ranges:
  DMA      0x00000010 -> 0x00001000
  DMA32    0x00001000 -> 0x00100000
  Normal   empty
Movable zone start PFN for each node
Early memory PFN ranges
    0: 0x00000010 -> 0x000000a0
    0: 0x00000100 -> 0x00020800
SMP: Allowing 1 CPUs, 0 hotplug CPUs
No local APIC present
APIC: disable apic facility
APIC: switched to apic NOOP
Allocating PCI resources starting at 20800000 (gap: 20800000:df800000)
Booting paravirtualized kernel on Xen
Xen version: 4.1.2 (preserve-AD)
setup_percpu: NR_CPUS:4096 nr_cpumask_bits:4096 nr_cpu_ids:1 nr_node_ids:1
PERCPU: Embedded 27 pages/cpu @ffff88001fc00000 s78592 r8192 d23808 u2097152
Built 1 zonelists in Node order, mobility grouping on.  Total pages: 131186
Policy zone: DMA32
Kernel command line: ro root=/dev/mapper/vg_null001cc0b1994f-lv_root
rd_NO_LUKS rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8
rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD
SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto  KEYBOARDTYPE=pc
KEYTABLE=us rd_NO_DM
PID hash table entries: 4096 (order: 3, 32768 bytes)
Checking aperture...
No AGP bridge found
Memory: 496060k/532480k available (5188k kernel code, 448k absent,
35972k reserved, 6042k data, 1496k init)
Preemptible hierarchical RCU implementation.
NR_IRQS:262400 nr_irqs:256 16
Console: colour dummy device 80x25
console [tty0] enabled
console [hvc0] enabled
allocated 10485760 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
installing Xen timer for CPU 0
Detected 3378.256 MHz processor.
Calibrating delay loop (skipped), value calculated using timer
frequency.. 6756.51 BogoMIPS (lpj=3378256)
pid_max: default: 32768 minimum: 301
Security Framework initialized
SELinux:  Initializing.
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
Mount-cache hash table entries: 256
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys net_cls
Initializing cgroup subsys blkio
Initializing cgroup subsys perf_event
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
SMP alternatives: switching to UP code
Freeing SMP alternatives: 16k freed
ftrace: allocating 20439 entries in 80 pages
cpu 0 spinlock event irq 17
Performance Events: unsupported p6 CPU model 44 no PMU driver,
software events only.
NMI watchdog: disabled (cpu0): hardware events not enabled
Brought up 1 CPUs
devtmpfs: initialized
Grant tables using version 2 layout.
Grant table initialized
dummy:
NET: Registered protocol family 16
PCI: setting up Xen PCI frontend stub
bio: create slab <bio-0> at 0
ACPI: Interpreter disabled.
xen/balloon: Initialising balloon driver.
xen-balloon: Initialising balloon driver.
vgaarb: loaded
SCSI subsystem initialized
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
Switching to clocksource xen
pnp: PnP ACPI: disabled
NET: Registered protocol family 2
IP route cache hash table entries: 8192


and stops here.



The xl info gives:
host                   : null-001cc0b1994f.seas.wustl.edu
release                : 3.4.0-rt7
version                : #2 SMP PREEMPT RT Wed May 23 00:03:32 CDT 2012
machine                : x86_64
nr_cpus                : 12
nr_nodes               : 1
cores_per_socket       : 6
threads_per_core       : 2
cpu_mhz                : 3378
hw_caps                :
bfebfbff:2c000800:00000000:00003f40:029ae3bf:00000000:00000001:00000000
virt_caps              : hvm hvm_directio
total_memory           : 12277
free_memory            : 9550
free_cpus              : 0
xen_major              : 4
xen_minor              : 1
xen_extra              : .2
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        : dom0_mem=2048M dom0_max_vcpus=1
dom0_vcpus_pin sched=credit
cc_compiler            : gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC)
cc_compile_by          : xisisu
cc_compile_domain      : seas.wustl.edu
cc_compile_date        : Tue May 22 16:39:08 CDT 2012
xend_config_format     : 4






Could anyone help with this?

Thanks in advance.

Best!

Yours,
Sisu

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users