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[Xen-devel] xen 4.0.1 w/2.6.32.47 hangs at boot



Hi,
xen 4.0.1 (issue with 4.0.3 too)
kernel 2.6.32.47 (it happens with 2.6.32.46 too)

system hangs at boot (it doesnt' happen always, usually at poweron
it'sok, then after two or three reboot it happens)

(XEN) Xen version 4.0.1 (root@xxxxxxxxxxxxxxx) (gcc version 4.4.5
(Debian 4.4.5-8) ) Fri Dec  2 16:56:12 CET 2011
(XEN) Latest ChangeSet: unavailable
(XEN) Bootloader: GNU GRUB 0.97
(XEN) Command line: dom0_mem=1024M loglvl=all guest_loglvl=all
com1=38400,8n1 console=com1
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN)  EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009b800 (usable)
(XEN)  000000000009b800 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000009dade000 (usable)
(XEN)  000000009dade000 - 000000009dbb0000 (ACPI NVS)
(XEN)  000000009dbb0000 - 000000009f6a4000 (ACPI data)
(XEN)  000000009f6a4000 - 000000009f6df000 (reserved)
(XEN)  000000009f6df000 - 000000009f78a000 (ACPI data)
(XEN)  000000009f78a000 - 000000009f7df000 (ACPI NVS)
(XEN)  000000009f7df000 - 000000009f800000 (ACPI data)
(XEN)  000000009f800000 - 00000000b0000000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN)  00000000ff800000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000460000000 (usable)
(XEN) ACPI: RSDP 000F0410, 0024 (r2 INTEL )
(XEN) ACPI: XSDT 9F7FD120, 008C (r1 INTEL  S3420GPC        0       1000013)
(XEN) ACPI: FACP 9F7FB000, 00F4 (r4 INTEL  S3420GPC        0 MSFT  100000D)
(XEN) ACPI: DSDT 9F7F6000, 4E22 (r2 INTEL  S3420GPC        3 MSFT  100000D)
(XEN) ACPI: FACS 9F78A000, 0040
(XEN) ACPI: APIC 9F7F5000, 00BC (r2 INTEL  S3420GPC        0 MSFT  100000D)
(XEN) ACPI: MCFG 9F7F4000, 003C (r1 INTEL  S3420GPC        1 MSFT  100000D)
(XEN) ACPI: HPET 9F7F3000, 0038 (r1 INTEL  S3420GPC        1 MSFT  100000D)
(XEN) ACPI: SLIT 9F7F2000, 0030 (r1 INTEL  S3420GPC        1 MSFT  100000D)
(XEN) ACPI: SPCR 9F7F1000, 0050 (r1 INTEL  S3420GPC        0 MSFT  100000D)
(XEN) ACPI: WDDT 9F7F0000, 0040 (r1 INTEL  S3420GPC        0 MSFT  100000D)
(XEN) ACPI: SSDT 9F7E5000, AEF4 (r2  INTEL SSDT  PM     4000 INTL 20061109)
(XEN) ACPI: SSDT 9F7E4000, 01D8 (r2  INTEL IPMI         4000 INTL 20061109)
(XEN) ACPI: HEST 9F7E3000, 00A8 (r1 INTEL  S3420GPC        1 INTL        1)
(XEN) ACPI: BERT 9F7E2000, 0030 (r1 INTEL  S3420GPC        1 INTL        1)
(XEN) ACPI: ERST 9F7E1000, 0230 (r1 INTEL  S3420GPC        1 INTL        1)
(XEN) ACPI: EINJ 9F7E0000, 0130 (r1 INTEL  S3420GPC        1 INTL        1)
(XEN) System RAM: 16346MB (16738788kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-0000000460000000
(XEN) Domain heap initialised
(XEN) found SMP MP-table at 000fd9a0
(XEN) DMI 2.5 present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x408
(XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[404,0], pm1x_evt[400,0]
(XEN) ACPI:                  wakeup_vec[9f78a00c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) Processor #0 7:14 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
(XEN) Processor #2 7:14 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
(XEN) Processor #4 7:14 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] enabled)
(XEN) Processor #6 7:14 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x01] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x03] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled)
(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x02] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x03] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x04] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x05] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x06] high level lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x07] high level lint[0x1])
(XEN) ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) ACPI: HPET id: 0x8086a801 base: 0xfed00000
(XEN) PCI: MCFG configuration 0: base a0000000 segment 0 buses 0 - 255
(XEN) PCI: MCFG area at a0000000 reserved in E820
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2400.057 MHz processor.
(XEN) Initing memory sharing.
(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) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Intel machine check reporting enabled
(XEN) I/O virtualisation disabled
(XEN) Total of 4 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) TSC is reliable, synchronization unnecessary
(XEN) Platform timer appears to have unexpectedly wrapped 1 times.
(XEN) Platform timer is 14.318MHz HPET
ÿ(XEN) Allocated console ring of 32 KiB.
(XEN) microcode.c:73:d32767 microcode: CPU1 resumed
(XEN) microcode.c:73:d32767 microcode: CPU2 resumed
(XEN) Brought up 4 CPUs
(XEN) microcode.c:73:d32767 microcode: CPU3 resumed
(XEN) Turbo Mode detected!
(XEN) HPET: 8 timers in total, 8 timers will be used for broadcast
(XEN) ACPI sleep modes: S3
(XEN) mcheck_poll: Machine check polling timer started.
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1bfc000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000450000000->0000000454000000 (245760 pages
to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff81bfc000
(XEN)  Init. ramdisk: ffffffff81bfc000->ffffffff820c8600
(XEN)  Phys-Mach map: ffffffff820c9000->ffffffff822c9000
(XEN)  Start info:    ffffffff822c9000->ffffffff822c94b4
(XEN)  Page tables:   ffffffff822ca000->ffffffff822df000
(XEN)  Boot stack:    ffffffff822df000->ffffffff822e0000
(XEN)  TOTAL:         ffffffff80000000->ffffffff82400000
(XEN)  ENTRY ADDRESS: ffffffff81976200
(XEN) Dom0 has maximum 4 VCPUs
(XEN) Scrubbing Free RAM:
........................................................................................................................................................done.
(XEN) trace.c:89:d32767 calc_tinfo_first_offset: NR_CPUs 128,
offset_in_bytes 258, t_info_first_offset 65
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
input to Xen)
(XEN) Freed 176kB init memory.
mapping kernel into physical memory
Xen: setup ISA identity maps
about to get started...
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.32.46 (root@xenhost-rack2) (gcc
version 4.4.5 (Debian 4.4.5-8) ) #1 SMP Wed Oct 12 16:48:53 CEST 2011
[    0.000000] Command line:
root=UUID=5563bc26-6e98-4768-abee-5ca053e2795c ro nomodeset
max_loop=255 console=hvc0 earlyprintk=xen
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Centaur CentaurHauls
[    0.000000] released 0 pages of unused memory
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  Xen: 0000000000000000 - 000000000009b000 (usable)
[    0.000000]  Xen: 000000000009b800 - 0000000000100000 (reserved)
[    0.000000]  Xen: 0000000000100000 - 0000000040000000 (usable)
[    0.000000]  Xen: 0000000040000000 - 000000009dade000 (unusable)
[    0.000000]  Xen: 000000009dade000 - 000000009dbb0000 (ACPI NVS)
[    0.000000]  Xen: 000000009dbb0000 - 000000009f6a4000 (ACPI data)
[    0.000000]  Xen: 000000009f6a4000 - 000000009f6df000 (reserved)
[    0.000000]  Xen: 000000009f6df000 - 000000009f78a000 (ACPI data)
[    0.000000]  Xen: 000000009f78a000 - 000000009f7df000 (ACPI NVS)
[    0.000000]  Xen: 000000009f7df000 - 000000009f800000 (ACPI data)
[    0.000000]  Xen: 000000009f800000 - 00000000b0000000 (reserved)
[    0.000000]  Xen: 00000000fec00000 - 00000000fec01000 (reserved)
[    0.000000]  Xen: 00000000fed1c000 - 00000000fed20000 (reserved)
[    0.000000]  Xen: 00000000fee00000 - 00000000fee01000 (reserved)
[    0.000000]  Xen: 00000000ff800000 - 0000000100000000 (reserved)
[    0.000000]  Xen: 0000000100000000 - 0000000340000000 (usable)
[    0.000000] bootconsole [xenboot0] enabled
[    0.000000] DMI 2.5 present.
[    0.000000] last_pfn = 0x340000 max_arch_pfn = 0x400000000
[    0.000000] x86 PAT enabled: cpu 0, old 0x50100070406, new 0x7010600070106
[    0.000000] last_pfn = 0x40000 max_arch_pfn = 0x400000000
[    0.000000] Scanning 1 areas for low memory corruption
[    0.000000] modified physical RAM map:
[    0.000000]  modified: 0000000000000000 - 0000000000001000 (usable)
[    0.000000]  modified: 0000000000001000 - 0000000000006000 (reserved)
[    0.000000]  modified: 0000000000006000 - 000000000009b000 (usable)
[    0.000000]  modified: 000000000009b800 - 0000000000100000 (reserved)
[    0.000000]  modified: 0000000000100000 - 0000000040000000 (usable)
[    0.000000]  modified: 0000000040000000 - 000000009dade000 (unusable)
[    0.000000]  modified: 000000009dade000 - 000000009dbb0000 (ACPI NVS)
[    0.000000]  modified: 000000009dbb0000 - 000000009f6a4000 (ACPI data)
[    0.000000]  modified: 000000009f6a4000 - 000000009f6df000 (reserved)
[    0.000000]  modified: 000000009f6df000 - 000000009f78a000 (ACPI data)
[    0.000000]  modified: 000000009f78a000 - 000000009f7df000 (ACPI NVS)
[    0.000000]  modified: 000000009f7df000 - 000000009f800000 (ACPI data)
[    0.000000]  modified: 000000009f800000 - 00000000b0000000 (reserved)
[    0.000000]  modified: 00000000fec00000 - 00000000fec01000 (reserved)
[    0.000000]  modified: 00000000fed1c000 - 00000000fed20000 (reserved)
[    0.000000]  modified: 00000000fee00000 - 00000000fee01000 (reserved)
[    0.000000]  modified: 00000000ff800000 - 0000000100000000 (reserved)
[    0.000000]  modified: 0000000100000000 - 0000000340000000 (usable)
[    0.000000] init_memory_mapping: 0000000000000000-0000000040000000
[    0.000000] init_memory_mapping: 0000000100000000-0000000340000000
[    0.000000] RAMDISK: 01bfc000 - 020c8600
[    0.000000] ACPI: RSDP 00000000000f0410 00024 (v02 INTEL )
[    0.000000] ACPI: XSDT 000000009f7fd120 0008C (v01 INTEL  S3420GPC
00000000      01000013)
[    0.000000] ACPI: FACP 000000009f7fb000 000F4 (v04 INTEL  S3420GPC
00000000 MSFT 0100000D)
[    0.000000] ACPI: DSDT 000000009f7f6000 04E22 (v02 INTEL  S3420GPC
00000003 MSFT 0100000D)
[    0.000000] ACPI: FACS 000000009f78a000 00040
[    0.000000] ACPI: APIC 000000009f7f5000 000BC (v02 INTEL  S3420GPC
00000000 MSFT 0100000D)
[    0.000000] ACPI: MCFG 000000009f7f4000 0003C (v01 INTEL  S3420GPC
00000001 MSFT 0100000D)
[    0.000000] ACPI: HPET 000000009f7f3000 00038 (v01 INTEL  S3420GPC
00000001 MSFT 0100000D)
[    0.000000] ACPI: SLIT 000000009f7f2000 00030 (v01 INTEL  S3420GPC
00000001 MSFT 0100000D)
[    0.000000] ACPI: SPCR 000000009f7f1000 00050 (v01 INTEL  S3420GPC
00000000 MSFT 0100000D)
[    0.000000] ACPI: WDDT 000000009f7f0000 00040 (v01 INTEL  S3420GPC
00000000 MSFT 0100000D)
[    0.000000] ACPI: SSDT 000000009f7e5000 0AEF4 (v02  INTEL SSDT  PM
00004000 INTL 20061109)
[    0.000000] ACPI: SSDT 000000009f7e4000 001D8 (v02  INTEL IPMI
00004000 INTL 20061109)
[    0.000000] ACPI: HEST 000000009f7e3000 000A8 (v01 INTEL  S3420GPC
00000001 INTL 00000001)
[    0.000000] ACPI: BERT 000000009f7e2000 00030 (v01 INTEL  S3420GPC
00000001 INTL 00000001)
[    0.000000] ACPI: ERST 000000009f7e1000 00230 (v01 INTEL  S3420GPC
00000001 INTL 00000001)
[    0.000000] ACPI: EINJ 000000009f7e0000 00130 (v01 INTEL  S3420GPC
00000001 INTL 00000001)
[    0.000000] (10 early reservations) ==> bootmem [0000000000 - 0340000000]
[    0.000000]   #0 [0000000000 - 0000001000]   BIOS data page ==>
[0000000000 - 0000001000]
[    0.000000]   #1 [00022ca000 - 00022df000]   XEN PAGETABLES ==>
[00022ca000 - 00022df000]
[    0.000000]   #2 [0000006000 - 0000008000]       TRAMPOLINE ==>
[0000006000 - 0000008000]
[    0.000000]   #3 [0001000000 - 0001ad1474]    TEXT DATA BSS ==>
[0001000000 - 0001ad1474]
[    0.000000]   #4 [0001bfc000 - 00020c8600]          RAMDISK ==>
[0001bfc000 - 00020c8600]
[    0.000000]   #5 [00020c9000 - 00022ca000]   XEN START INFO ==>
[00020c9000 - 00022ca000]
[    0.000000]   #6 [0100000000 - 0340000000]        XEN EXTRA ==>
[0100000000 - 0340000000]
[    0.000000]   #7 [0001ad2000 - 0001ade36c]              BRK ==>
[0001ad2000 - 0001ade36c]
[    0.000000]   #8 [0000100000 - 00002ea000]          PGTABLE ==>
[0000100000 - 00002ea000]
[    0.000000]   #9 [00022df000 - 00034e8000]          PGTABLE ==>
[00022df000 - 00034e8000]
[    0.000000] found SMP MP-table at [ffff8800000fd9a0] fd9a0
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000000 -> 0x00001000
[    0.000000]   DMA32    0x00001000 -> 0x00100000
[    0.000000]   Normal   0x00100000 -> 0x00340000
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[4] active PFN ranges
[    0.000000]     0: 0x00000000 -> 0x00000001
[    0.000000]     0: 0x00000006 -> 0x0000009b
[    0.000000]     0: 0x00000100 -> 0x00040000
[    0.000000]     0: 0x00100000 -> 0x00340000
[    0.000000] ACPI: PM-Timer IO Port: 0x408
[    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x01] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x03] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x04] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x05] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x06] high level lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x07] high level lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 8, version 0, address 0xfec00000, GSI 0-0
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ERROR: Unable to locate IOAPIC for GSI 2
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] ERROR: Unable to locate IOAPIC for GSI 9
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a801 base: 0xfed00000
[    0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs
[    0.000000] PM: Registered nosave memory: 0000000000001000 - 0000000000006000
[    0.000000] PM: Registered nosave memory: 000000000009b000 - 000000000009c000
[    0.000000] PM: Registered nosave memory: 000000000009c000 - 0000000000100000
[    0.000000] PM: Registered nosave memory: 0000000040000000 - 000000009dade000
[    0.000000] PM: Registered nosave memory: 000000009dade000 - 000000009dbb0000
[    0.000000] PM: Registered nosave memory: 000000009dbb0000 - 000000009f6a4000
[    0.000000] PM: Registered nosave memory: 000000009f6a4000 - 000000009f6df000
[    0.000000] PM: Registered nosave memory: 000000009f6df000 - 000000009f78a000
[    0.000000] PM: Registered nosave memory: 000000009f78a000 - 000000009f7df000
[    0.000000] PM: Registered nosave memory: 000000009f7df000 - 000000009f800000
[    0.000000] PM: Registered nosave memory: 000000009f800000 - 00000000b0000000
[    0.000000] PM: Registered nosave memory: 00000000b0000000 - 00000000fec00000
[    0.000000] PM: Registered nosave memory: 00000000fec00000 - 00000000fec01000
[    0.000000] PM: Registered nosave memory: 00000000fec01000 - 00000000fed1c000
[    0.000000] PM: Registered nosave memory: 00000000fed1c000 - 00000000fed20000
[    0.000000] PM: Registered nosave memory: 00000000fed20000 - 00000000fee00000
[    0.000000] PM: Registered nosave memory: 00000000fee00000 - 00000000fee01000
[    0.000000] PM: Registered nosave memory: 00000000fee01000 - 00000000ff800000
[    0.000000] PM: Registered nosave memory: 00000000ff800000 - 0000000100000000
[    0.000000] Allocating PCI resources starting at b0000000 (gap:
b0000000:4ec00000)
[    0.000000] Booting paravirtualized kernel on Xen
[    0.000000] Xen version: 4.0.1 (preserve-AD) (dom0)
[    0.000000] NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:4 nr_node_ids:1
[    0.000000] PERCPU: Embedded 29 pages/cpu @ffff880028038000 s88536
r8192 d22056 u118784
[    0.000000] pcpu-alloc: s88536 r8192 d22056 u118784 alloc=29*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    2.710494] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 2574249
[    2.710498] Kernel command line:
root=UUID=5563bc26-6e98-4768-abee-5ca053e2795c ro nomodeset
max_loop=255 console=hvc0 earlyprintk=xen
[    2.710547] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    2.712182] Dentry cache hash table entries: 2097152 (order: 12,
16777216 bytes)
[    2.716022] Inode-cache hash table entries: 1048576 (order: 11,
8388608 bytes)
[    2.717879] Initializing CPU#0
[    2.724732] DMA: Placing 64MB software IO TLB between
ffff880020000000 - ffff880024000000
[    2.724738] DMA: software IO TLB at phys 0x20000000 - 0x24000000
[    2.724741] xen_swiotlb_fixup: buf=ffff880020000000 size=67108864
[    2.742551] xen_swiotlb_fixup: buf=ffff880024060000 size=32768
[    2.745990] Memory: 774160k/13631488k available (5876k kernel code,
3146152k absent, 9710444k reserved, 3718k data, 568k init)
[    2.746017] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0,
CPUs=4, Nodes=1
[    2.746036] Hierarchical RCU implementation.
[    2.746041] NR_IRQS:4352 nr_irqs:1280
[    2.746192] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    2.746196] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    2.746200] xen: sci override: source_irq=9 global_irq=9 trigger=c polarity=1
[    2.746205] xen_allocate_pirq: returning irq 9 for gsi 9
[    2.746213] xen: acpi sci 9
[    2.757067] Console: colour VGA+ 80x25
[    2.757072] console [hvc0] enabled, bootconsole disabled
[    2.757072] console [hvc0] enabled, bootconsole disabled
[    2.757090] installing Xen timer for CPU 0
[    2.757119] Detected 2400.056 MHz processor.
[    2.757126] Calibrating delay loop (skipped), value calculated
using timer frequency.. 4800.11 BogoMIPS (lpj=2400056)
[    2.757143] Security Framework initialized
[    2.757148] SELinux:  Initializing.
[    2.757162] Mount-cache hash table entries: 256
[    2.757288] Initializing cgroup subsys ns
[    2.757294] Initializing cgroup subsys cpuacct
[    2.757299] Initializing cgroup subsys freezer
[    2.757332] CPU: L1 I cache: 32K, L1 D cache: 32K
[    2.757336] CPU: L2 cache: 256K
[    2.757339] CPU: L3 cache: 8192K
[    2.757343] CPU: Unsupported number of siblings 16
[    2.757348] mce: CPU supports 9 MCE banks
[    2.757371] Performance Events: unsupported p6 CPU model 30 no PMU
driver, software events only.
[    2.757387] SMP alternatives: switching to UP code
[    2.794584] ACPI: Core revision 20090903
[    2.815504] installing Xen timer for CPU 1
[    2.815533] SMP alternatives: switching to SMP code
[    2.851777] Initializing CPU#1
[    2.851813] CPU: L1 I cache: 32K, L1 D cache: 32K
[    2.851815] CPU: L2 cache: 256K
[    2.851816] CPU: L3 cache: 8192K
[    2.851820] CPU: Unsupported number of siblings 16
[    2.851896] installing Xen timer for CPU 2
[    2.851961] Initializing CPU#2
[    2.851995] CPU: L1 I cache: 32K, L1 D cache: 32K
[    2.851997] CPU: L2 cache: 256K
[    2.851998] CPU: L3 cache: 8192K
[    2.852002] CPU: Unsupported number of siblings 16
[    2.852070] installing Xen timer for CPU 3
[    2.852132] Initializing CPU#3
[    2.852165] CPU: L1 I cache: 32K, L1 D cache: 32K
[    2.852168] CPU: L2 cache: 256K
[    2.852169] CPU: L3 cache: 8192K
[    2.852173] CPU: Unsupported number of siblings 16
[    2.852205] Brought up 4 CPUs
[    2.853032] Grant table initialized
[    2.853065] Time: 16:22:10  Date: 12/02/11
[    2.853112] NET: Registered protocol family 16
[    2.853696] ACPI FADT declares the system doesn't support PCIe
ASPM, so disable it
[    2.853701] ACPI: bus type pci registered
[    2.854119] PCI: MCFG configuration 0: base a0000000 segment 0 buses 0 - 255
[    2.854124] PCI: MCFG area at a0000000 reserved in E820
[    2.878058] PCI: Using MMCONFIG at a0000000 - afffffff
[    2.878063] PCI: Using configuration type 1 for base access
[    2.890548] bio: create slab <bio-0> at 0
[    2.891518] ERROR: Unable to locate IOAPIC for GSI 9
[    2.893192] ACPI Error: Field [CPB3] at 96 exceeds Buffer [NULL]
size 64 (bits) (20090903/dsopcode-596)
[    2.893203] ACPI Error (psparse-0537): Method parse/execution
failed [\_SB_._OSC] (Node ffff88003fc187c0), AE_AML_BUFFER_LIMIT
[    2.917957] ACPI: Interpreter enabled
[    2.917962] ACPI: (supports S0 S1 S5)
[    2.917987] ACPI: Using IOAPIC for interrupt routing
[    2.931854] ACPI: No dock devices found.
[    2.932646] ACPI: PCI Root Bridge [PCI0] (0000:00)
[    2.932931] pci 0000:00:05.0: PME# supported from D0 D3hot D3cold
[    2.932939] pci 0000:00:05.0: PME# disabled
[    2.933685] pci 0000:00:19.0: PME# supported from D0 D3hot D3cold
[    2.933692] pci 0000:00:19.0: PME# disabled
[    2.933874] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
[    2.933882] pci 0000:00:1a.0: PME# disabled
[    2.934001] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[    2.934008] pci 0000:00:1c.0: PME# disabled
[    2.934131] pci 0000:00:1c.4: PME# supported from D0 D3hot D3cold
[    2.934138] pci 0000:00:1c.4: PME# disabled
[    2.934257] pci 0000:00:1c.6: PME# supported from D0 D3hot D3cold
[    2.934264] pci 0000:00:1c.6: PME# disabled
[    2.934381] pci 0000:00:1c.7: PME# supported from D0 D3hot D3cold
[    2.934389] pci 0000:00:1c.7: PME# disabled
[    2.934635] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
[    2.934643] pci 0000:00:1d.0: PME# disabled
[    2.935817] pci 0000:03:00.0: PME# supported from D0 D3hot D3cold
[    2.935827] pci 0000:03:00.0: PME# disabled
[    2.936372] pci 0000:00:1e.0: transparent bridge
(XEN) PCI add device 00:00.0
(XEN) PCI add device 00:05.0
(XEN) PCI add device 00:08.0
(XEN) PCI add device 00:08.1
(XEN) PCI add device 00:08.2
(XEN) PCI add device 00:08.3
(XEN) PCI add device 00:10.0
(XEN) PCI add device 00:10.1
(XEN) PCI add device 00:19.0
(XEN) PCI add device 00:1a.0
(XEN) PCI add device 00:1c.0
(XEN) PCI add device 00:1c.4
(XEN) PCI add device 00:1c.6
(XEN) PCI add device 00:1c.7
(XEN) PCI add device 00:1d.0
(XEN) PCI add device 00:1e.0
(XEN) PCI add device 00:1f.0
(XEN) PCI add device 00:1f.2
(XEN) PCI add device 00:1f.3
(XEN) PCI add device 00:1f.5
(XEN) PCI add device 01:00.0
(XEN) PCI add device 03:00.0
(XEN) PCI add device 04:00.0
[    2.947993] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 *10
11 12 14 15)
[    2.948136] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 10
*11 12 14 15)
[    2.948276] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 9 10
11 12 14 15)
[    2.948415] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 10
*11 12 14 15)
[    2.948554] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 11
12 14 15) *0, disabled.
[    2.948695] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 *9 10
11 12 14 15)
[    2.948890] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 *9 10
11 12 14 15)
[    2.949032] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10
11 12 14 15)
[    2.949290] xen_balloon: Initialising balloon driver with page order 0.
[    2.949389] last_pfn = 0x340000 max_arch_pfn = 0x __  __
_  _    ___   _


then it hangs

xend-config.sxp relevant directives:

(xend-relocation-server yes)
(dom0-min-mem 1024)
(enable-dom0-ballooning no)
(dom0-cpus 0)

grub:
title           Xen 4.0.1 / Debian GNU/Linux, kernel 2.6.32.47
root            (hd0,0)
kernel          /boot/xen-4.0.1.gz dom0_mem=1024M max_cstate=1
module          /boot/vmlinuz-2.6.32.47
root=UUID=5563bc26-6e98-4768-abee-5ca053e2795c ro nomodeset
max_loop=255
module          /boot/initrd.img-2.6.32.47


Thanks for your help

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