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[Xen-users] DomU booting stacks..

hello everyone,

I am experiencing DomU booting problem. It stacks some where when the serial console tries to share IRQ (serial: 8250/16550 driver, 4 ports,  IRQ sharing disabled). But the a strange thing happens, after once the DomU hangup, I restart the Host, then I find my DomU is already booted successfully. However, if I reboot the DomU, it stacks on the same place. I really dont know what this means.

root@swart-2:/home/swart# xm dmesg
(XEN) Xen version 4.1.2 (Ubuntu 4.1.2-2ubuntu2.8) (stefan.bader@xxxxxxxxxxxxx) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) Mon Apr 29 19:04:55 UTC 2013
(XEN) Bootloader: GRUB 1.99-21ubuntu3.9
(XEN) Command line: placeholder dom0_max_vcpus=2 dom0_vcpus_pin xencons=off vpmu
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009dc00 (usable)
(XEN)  000000000009dc00 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 0000000020000000 (usable)
(XEN)  0000000020000000 - 0000000020200000 (reserved)
(XEN)  0000000020200000 - 0000000040004000 (usable)
(XEN)  0000000040004000 - 0000000040005000 (reserved)
(XEN)  0000000040005000 - 00000000d87b7000 (usable)
(XEN)  00000000d87b7000 - 00000000d8a2c000 (reserved)
(XEN)  00000000d8a2c000 - 00000000d8a3f000 (ACPI data)
(XEN)  00000000d8a3f000 - 00000000d8ac8000 (reserved)
(XEN)  00000000d8ac8000 - 00000000d8ad6000 (ACPI data)
(XEN)  00000000d8ad6000 - 00000000d8b61000 (usable)
(XEN)  00000000d8b61000 - 00000000d8c14000 (ACPI NVS)
(XEN)  00000000d8c14000 - 00000000d8fae000 (reserved)
(XEN)  00000000d8fae000 - 00000000d8faf000 (usable)
(XEN)  00000000d8faf000 - 00000000d8ff2000 (ACPI NVS)
(XEN)  00000000d8ff2000 - 00000000d9e1a000 (usable)
(XEN)  00000000d9e1a000 - 00000000d9ff2000 (reserved)
(XEN)  00000000d9ff2000 - 00000000da000000 (usable)
(XEN)  00000000db000000 - 00000000df200000 (reserved)
(XEN)  00000000f8000000 - 00000000fc000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fed00000 - 00000000fed04000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed45000 (reserved)
(XEN)  00000000fed90000 - 00000000fed94000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ff000000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 000000011ee00000 (usable)
(XEN) ACPI: RSDP 000F9810, 0024 (r2 HPQOEM)
(XEN) ACPI: XSDT D8A2C088, 0094 (r1 HPQOEM SLIC-BPC  1072009 AMI     10013)
(XEN) ACPI: FACP D8A36650, 010C (r5 HPQOEM SLIC-BPC  1072009 AMI     10013)
(XEN) ACPI Warning (tbfadt-0232): FADT (revision 5) is longer than ACPI 2.0 version, truncating length 0x10C to 0xF4 [20070126]
(XEN) ACPI: DSDT D8A2C1B0, A49B (r2 HPQOEM SLIC-BPC       17 INTL 20051117)
(XEN) ACPI: FACS D8C12080, 0040
(XEN) ACPI: APIC D8A36760, 0072 (r3 HPQOEM SLIC-BPC  1072009 AMI     10013)
(XEN) ACPI: FPDT D8A367D8, 0044 (r1 HPQOEM SLIC-BPC  1072009 AMI     10013)
(XEN) ACPI: MCFG D8A36820, 003C (r1 HPQOEM SLIC-BPC  1072009 MSFT       97)
(XEN) ACPI: HPET D8A36860, 0038 (r1 HPQOEM SLIC-BPC  1072009 AMI.        5)
(XEN) ACPI: SSDT D8A36898, 036D (r1 SataRe SataTabl     1000 INTL 20091112)
(XEN) ACPI: MSDM D8A36C08, 0055 (r3 HPQOEM SLIC-BPC  1072009 HPQ     10013)
(XEN) ACPI: SSDT D8A36C60, 668F (r1 COMPAQ      WMI        1 MSFT  3000001)
(XEN) ACPI: SLIC D8A3D2F0, 0176 (r1 HPQOEM SLIC-BPC        1             0)
(XEN) ACPI: SSDT D8A3D468, 0968 (r1  PmRef  Cpu0Ist     3000 INTL 20051117)
(XEN) ACPI: SSDT D8A3DDD0, 0A92 (r1  PmRef    CpuPm     3000 INTL 20051117)
(XEN) ACPI: TCPA D8A3E868, 0032 (r2 APTIO4  NAPAASF        1 MSFT  1000013)
(XEN) ACPI: DMAR D8A3E8A0, 00B8 (r1 INTEL      SNB         1 INTL        1)
(XEN) ACPI: ASF! D8A3E958, 00A5 (r32 INTEL       HCG        1 TFSM    F4240)
(XEN) System RAM: 3970MB (4065364kB)
(XEN) Domain heap initialised
(XEN) ACPI: 32/64X FACS address mismatch in FADT - d8c12080/0000000000000000, using 32
(XEN) Processor #0 7:10 APIC version 21
(XEN) Processor #2 7:10 APIC version 21
(XEN) Processor #4 7:10 APIC version 21
(XEN) Processor #6 7:10 APIC version 21
(XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) Table is not found!
(XEN) Switched to APIC driver x2apic_cluster.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2893.477 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN)  -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Brought up 4 CPUs
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x2353000
(XEN)  Dom0 alloc.:   0000000110000000->0000000114000000 (936161 pages to be allocated)
(XEN)  Init. ramdisk: 000000011b2cb000->000000011edff800
(XEN)  Loaded kernel: ffffffff81000000->ffffffff82353000
(XEN)  Init. ramdisk: ffffffff82353000->ffffffff85e87800
(XEN)  Phys-Mach map: ffffffff85e88000->ffffffff865ea0b0
(XEN)  Start info:    ffffffff865eb000->ffffffff865eb4b4
(XEN)  Page tables:   ffffffff865ec000->ffffffff86623000
(XEN)  Boot stack:    ffffffff86623000->ffffffff86624000
(XEN)  TOTAL:         ffffffff80000000->ffffffff86800000
(XEN)  ENTRY ADDRESS: ffffffff81cf2210
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
(XEN) Freed 216kB init memory.
(XEN) no cpu_id for acpi_id 5
(XEN) no cpu_id for acpi_id 6
(XEN) no cpu_id for acpi_id 7
(XEN) no cpu_id for acpi_id 8
(XEN) physdev.c:162: dom0: wrong map_pirq type 3


# virsh dumpxml hvm-1
<domain type='xen' id='4'>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu placement='static'>1</vcpu>
    <cmdline>root=/dev/hda ip=dhcp acpi=off apic=off</cmdline>
  <clock offset='variable' adjustment='0' basis='utc'>
    <timer name='hpet' present='no'/>
    <disk type='file' device='disk'>
      <driver name='file'/>
      <source file='/home/swart/yoctoimage/sandybayimages/core-image-minimal-sugarbay.hddimg'/>
      <target dev='hda' bus='ide'/>
    <interface type='bridge'>
      <mac address='00:16:3e:6f:f9:72'/>
      <source bridge='xenbr0'/>
      <script path='/etc/xen/scripts/vif-bridge'/>
      <target dev='vif4.0'/>
      <model type='e1000'/>
    <serial type='pty'>
      <source path='/dev/pts/0'/>
      <target port='0'/>
    <console type='pty' tty='/dev/pts/0'>
      <source path='/dev/pts/0'/>
      <target type='serial' port='0'/>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='5900' autoport='yes' keymap='en-us'/>
    <sound model='es1370'/>
Inline image 1
HOST: Ubuntu-12.0.4 LTS
XEN: xen-hypervisor-4.1-amd64

I highly appreciate your support,

Thank you,

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