Re: Xen 4.0.0-rc7 problem/hang with vt-d DMAR parsing

[Weidong Han <weidong.han@intel.com>]

Nadolski, Ed wrote:
>> -----Original Message-----
>> Idea-by: Jan Beulich <jbeulich@novell.com <mailto:jbeulich@novell.com>>
>> Signed-off-by: Weidong Han <weidong.han@intel.com>
>>
>> diff -r a4eac162dcb9 xen/drivers/passthrough/vtd/dmar.c
>> --- a/xen/drivers/passthrough/vtd/dmar.c    Thu Mar 25 01:05:03 2010
>> +0800
>> +++ b/xen/drivers/passthrough/vtd/dmar.c    Thu Mar 25 03:53:21 2010
>> +0800
>> @@ -659,6 +659,23 @@ static int __init acpi_parse_dmar(struct
>>      while ( ((unsigned long)entry_header) <
>>              (((unsigned long)dmar) + table->length) )
>>      {
>> +        /*
>> +         * entry_header length should not smaller than size of
>> +         * any acpi dmar structures. also avoid endless looping
>> +         * when the lenght is 0 on some bad BIOSs
>> +         */
>> +        if ( entry_header->length < sizeof(struct acpi_table_drhd) &&
>> +             entry_header->length < sizeof(struct acpi_table_rmrr) &&
>> +             entry_header->length < sizeof(struct acpi_table_atsr) &&
>> +             entry_header->length < sizeof(struct acpi_table_rhsa) )
>> +        {
>> +            dprintk(XENLOG_WARNING VTDPREFIX,
>> +                    "Invalid entry_header length: 0x%x\n",
>> +                    entry_header->length);
>> +            ret = -EINVAL;
>> +            break;
>> +        }
>> +
>>          switch ( entry_header->type )
>>          {
>>          case ACPI_DMAR_DRHD:
>>     
>
>
> I'm also seeing a hang on boot with 4.0.0-rc7, but I am not clear if this is the same issue.  Here is the tail end of the trace:
>
> [    4.802862] NetLabel:  unlabeled traffic allowed by default
> [    4.808653] DMAR:Host address width 40
> [    4.812310] DMAR:DRHD base: 0x000000dfffe000 flags: 0x0
> [    4.817604] IOMMU dfffe000: ver 1:0 cap c90780106f0462 ecap f020fe
> [    4.823816] DMAR:DRHD base: 0x000000fedc0000 flags: 0x1
> [    4.829105] IOMMU fedc0000: ver 1:0 cap c90780106f0462 ecap f020f6
> [    4.835325] DMAR:RMRR base: 0x000000dbe58000 end: 0x000000dbe6ffff
> [    4.841556] DMAR:ATSR flags: 0x0
> [    4.844844] DMAR:ATSR flags: 0x0
> [    4.848133] Not all IO-APIC's listed under remapping hardware
> [    4.854028] IOMMU 0xdfffe000: using Queued invalidation
> [    4.859217] IOMMU 0xfedc0000: using Queued invalidation
> [    4.864493] IOMMU: Setting RMRR:
> [    4.867778] IOMMU: Setting identity map for device 0000:00:1d.0 [0xdbe58000 - 0xdbe70000]
> [    4.876053] IOMMU: Setting identity map for device 0000:00:1d.1 [0xdbe58000 - 0xdbe70000]
> [    4.884264] IOMMU: Setting identity map for device 0000:00:1d.2 [0xdbe58000 - 0xdbe70000]
> [    4.892485] IOMMU: Setting identity map for device 0000:00:1d.7 [0xdbe58000 - 0xdbe70000]
> [    4.900709] IOMMU: Setting identity map for device 0000:00:1a.0 [0xdbe58000 - 0xdbe70000]
> [    4.908928] IOMMU: Setting identity map for device 0000:00:1a.1 [0xdbe58000 - 0xdbe70000]
> [    4.917150] IOMMU: Setting identity map for device 0000:00:1a.2 [0xdbe58000 - 0xdbe70000]
> [    4.925390] IOMMU: Setting identity map for device 0000:00:1a.7 [0xdbe58000 - 0xdbe70000]
> [    4.933612] IOMMU: Prepare 0-16MiB unity mapping for LPC
> [    4.938938] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0x1000000]
> [    4.946651] VT-d detected invalid descriptor: low=11, high=0
>
> Then it hangs. This is on a Dell T7500 quad-core Xeon with the latest Dell BIOS (rev. A03).  Should I try the suggested patch, or any particular command line or build options? Should I dump the DMAR tables?
>   
Your issue is different. It's caused by enabling VT-d in pv-ops dom0. 
but pv-ops dom0 should not see DMAR table because its signature is 
zapped after xen enables it.  Pls have a try with turn off VT-d in pvops 
config (# CONFIG_DMAR is not set) , it should solve your issue. But we 
need to find why pv-ops dom0 still sees DMAR table in ACPI. Pls dump 
DMAR tables.

Regards,
Weidong
> Thanks,
> Ed
>
>
> Here is the full trace:
>  __  __            _  _    ___   ___             _____
>  \ \/ /___ _ __   | || |  / _ \ / _ \    _ __ __|___  |
>   \  // _ \ '_ \  | || |_| | | | | | |__| '__/ __| / /
>   /  \  __/ | | | |__   _| |_| | |_| |__| | | (__ / /
>  /_/\_\___|_| |_|    |_|(_)___(_)___/   |_|  \___/_/
>
> (XEN) Xen version 4.0.0-rc7 (root@) (gcc version 4.4.2 20091027 (Red Hat 4.4.2-7) (GCC) ) Tue Mar 23 17:04:42 MDT 2010
> (XEN) Latest ChangeSet: Tue Mar 23 09:37:59 2010 +0000 21057:0475c567c708
> (XEN) Console output is synchronous.
> (XEN) Command line: iommu=1 acpi_skip_timer_override loglvl=all guest_loglvl=all sync_console console_to_ring com1=115200,8n1 console=com1
> (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 - 000000000009e400 (usable)
> (XEN)  00000000000f0000 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 00000000dbdf9c00 (usable)
> (XEN)  00000000dbdf9c00 - 00000000dbe4bc00 (ACPI NVS)
> (XEN)  00000000dbe4bc00 - 00000000dbe4dc00 (ACPI data)
> (XEN)  00000000dbe4dc00 - 00000000dc000000 (reserved)
> (XEN)  00000000f8000000 - 00000000fd000000 (reserved)
> (XEN)  00000000fe000000 - 00000000fed00400 (reserved)
> (XEN)  00000000fee00000 - 00000000fef00000 (reserved)
> (XEN)  00000000ffb00000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 00000001a4000000 (usable)
> (XEN) ACPI: RSDP 000FEBF0, 0024 (r2 DELL  )
> (XEN) ACPI: XSDT 000FCC3C, 0084 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: FACP 000FCD34, 00F4 (r3 DELL    B10K          15 ASL        61)
> (XEN) ACPI: DSDT FFE9A4EE, 5732 (r1   DELL    dt_ex     1000 INTL 20050624)
> (XEN) ACPI: FACS DBDF9C00, 0040
> (XEN) ACPI: SSDT FFE9FD41, 00AC (r1   DELL    st_ex     1000 INTL 20050624)
> (XEN) ACPI: APIC 000FCE28, 016A (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: BOOT 000FCF92, 0028 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: ASF! 000FCFBA, 0096 (r32 DELL    B10K          15 ASL        61)
> (XEN) ACPI: MCFG 000FD050, 003E (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: HPET 000FD08E, 0038 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: TCPA 000FD2EA, 0032 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: DMAR 000FD31C, 00F8 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: SLIC 000FD0C6, 0176 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: _RAT 000FDECE, 0030 (r1 DELL    B10K          15 ASL        61)
> (XEN) ACPI: SSDT DBE4DC00, 10F4 (r1  INTEL PPM RCM  80000001 INTL 20061109)
> (XEN) System RAM: 6104MB (6250856kB)
> (XEN) No NUMA configuration found
> (XEN) Faking a node at 0000000000000000-00000001a4000000
> (XEN) Domain heap initialised
> (XEN) DMI 2.5 present.
> (XEN) Using APIC driver default
> (XEN) ACPI: PM-Timer IO Port: 0x808
> (XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[804,0], pm1x_evt[800,0]
> (XEN) ACPI:                  wakeup_vec[dbdf9c0c], vec_size[20]
> (XEN) ACPI: Local APIC address 0xfee00000
> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> (XEN) Processor #0 7:10 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
> (XEN) Processor #2 7:10 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled)
> (XEN) Processor #4 7:10 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled)
> (XEN) Processor #6 7:10 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x01] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x02] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x03] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x11] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x12] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x13] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x14] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x15] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x16] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x17] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x18] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x19] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x20] lapic_id[0x00] disabled)
> (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] 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: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24])
> (XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
> (XEN) ACPI: IOAPIC (id[0x0a] address[0xfec88000] gsi_base[48])
> (XEN) IOAPIC[2]: apic_id 10, version 32, address 0xfec88000, GSI 48-71
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> (XEN) ACPI: BIOS IRQ0 pin2 override ignored.
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> (XEN) ACPI: IRQ9 used by override.
> (XEN) Enabling APIC mode:  Flat.  Using 3 I/O APICs
> (XEN) ACPI: HPET id: 0x8086a301 base: 0xfed00000
> (XEN) PCI: MCFG configuration 0: base f8000000 segment 0 buses 0 - 63
> (XEN) PCI: MCFG area at f8000000 reserved in E820
> (XEN) Using ACPI (MADT) for SMP configuration information
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) Detected 2128.034 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) HVM: ASIDs enabled.
> (XEN) HVM: VMX enabled
> (XEN) HVM: Hardware Assisted Paging detected.
> (XEN) Intel machine check reporting enabled
> (XEN) Intel VT-d Snoop Control supported.
> (XEN) Intel VT-d DMA Passthrough not supported.
> (XEN) Intel VT-d Queued Invalidation supported.
> (XEN) Intel VT-d Interrupt Remapping not supported.
> (XEN) I/O virtualisation enabled
> (XEN) I/O virtualisation for PV guests disabled
> (XEN) Total of 4 processors activated.
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method
> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=0 apic2=-1 pin2=-1
> (XEN) ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> (XEN) ...trying to set up timer (IRQ0) through the 8259A ...  failed.
> (XEN) ...trying to set up timer as Virtual Wire IRQ... works.
> (XEN) TSC is reliable, synchronization unnecessary
> (XEN) Platform timer is 14.318MHz HPET
> ÿ(XEN) Allocated console ring of 32 KiB.
> (XEN) microcode.c:73:d32767 microcode: CPU1 resumed
> (XEN) Brought up 4 CPUs
> (XEN) microcode.c:73:d32767 microcode: CPU2 resumed
> (XEN) microcode.c:73:d32767 microcode: CPU3 resumed
> (XEN) HPET: 4 timers in total, 0 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 -> 0x1b62000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   0000000198000000->000000019c000000 (1500636 pages to be allocated)
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: ffffffff81000000->ffffffff81b62000
> (XEN)  Init. ramdisk: ffffffff81b62000->ffffffff829c1000
> (XEN)  Phys-Mach map: ffffffff829c1000->ffffffff83553ee0
> (XEN)  Start info:    ffffffff83554000->ffffffff835544b4
> (XEN)  Page tables:   ffffffff83555000->ffffffff83574000
> (XEN)  Boot stack:    ffffffff83574000->ffffffff83575000
> (XEN)  TOTAL:         ffffffff80000000->ffffffff83800000
> (XEN)  ENTRY ADDRESS: ffffffff818f6a20
> (XEN) Dom0 has maximum 4 VCPUs
> (XEN) Scrubbing Free RAM: .done.
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: All
> (XEN) Guest Loglevel: All
> (XEN) **********************************************
> (XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS
> (XEN) ******* This option is intended to aid debugging of Xen by ensuring
> (XEN) ******* that all output is synchronously delivered on the serial line.
> (XEN) ******* However it can introduce SIGNIFICANT latencies and affect
> (XEN) ******* timekeeping. It is NOT recommended for production use!
> (XEN) **********************************************
> (XEN) 3... 2... 1...
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
> (XEN) Freed 168kB 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 2.6.31.12 (root@truckee) (gcc version 4.4.2 20091027 (Red Hat 4.4.2-7) (GCC) ) #1 SMP Tue Mar 23 16:46:07 MDT 2010
> [    0.000000] Command line: ro root=UUID=edbcbc29-f3e4-4985-80c1-3c3b0ce24d17  LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen xen-pciback.hide=(24:00.0)(24:00.1)(25:00.0)(25:00.1) acpi_skip_timer_override
> [    0.000000] KERNEL supported cpus:
> [    0.000000]   Intel GenuineIntel
> [    0.000000]   AMD AuthenticAMD
> [    0.000000]   Centaur CentaurHauls
> [    0.000000] xen_release_chunk: looking at area pfn 9f-a0: 1 pages freed
> [    0.000000] xen_release_chunk: looking at area pfn dc000-f8000: 114688 pages freed
> [    0.000000] xen_release_chunk: looking at area pfn fd000-fe000: 4096 pages freed
> [    0.000000] xen_release_chunk: looking at area pfn fed01-fee00: 255 pages freed
> [    0.000000] xen_release_chunk: looking at area pfn fef00-ffb00: 3072 pages freed
> [    0.000000] released 122112 pages of unused memory
> [    0.000000] BIOS-provided physical RAM map:
> [    0.000000]  Xen: 0000000000000000 - 000000000009e400 (usable)
> [    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
> [    0.000000]  Xen: 0000000000100000 - 00000000dbdf9c00 (usable)
> [    0.000000]  Xen: 00000000dbdf9c00 - 00000000dbe4bc00 (ACPI NVS)
> [    0.000000]  Xen: 00000000dbe4bc00 - 00000000dbe4dc00 (ACPI data)
> [    0.000000]  Xen: 00000000dbe4dc00 - 00000000dc000000 (reserved)
> [    0.000000]  Xen: 00000000f8000000 - 00000000fd000000 (reserved)
> [    0.000000]  Xen: 00000000fe000000 - 00000000fed00400 (reserved)
> [    0.000000]  Xen: 00000000fee00000 - 00000000fef00000 (reserved)
> [    0.000000]  Xen: 00000000ffb00000 - 0000000100000000 (reserved)
> [    0.000000]  Xen: 0000000100000000 - 00000001725dc000 (usable)
> [    0.000000] console [xenboot0] enabled
> [    0.000000] DMI 2.5 present.
> [    0.000000] last_pfn = 0x1725dc max_arch_pfn = 0x400000000
> [    0.000000] last_pfn = 0xdbdf9 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 - 000000000009e400 (usable)
> [    0.000000]  modified: 00000000000a0000 - 0000000000100000 (reserved)
> [    0.000000]  modified: 0000000000100000 - 00000000dbdf9c00 (usable)
> [    0.000000]  modified: 00000000dbdf9c00 - 00000000dbe4bc00 (ACPI NVS)
> [    0.000000]  modified: 00000000dbe4bc00 - 00000000dbe4dc00 (ACPI data)
> [    0.000000]  modified: 00000000dbe4dc00 - 00000000dc000000 (reserved)
> [    0.000000]  modified: 00000000f8000000 - 00000000fd000000 (reserved)
> [    0.000000]  modified: 00000000fe000000 - 00000000fed00400 (reserved)
> [    0.000000]  modified: 00000000fee00000 - 00000000fef00000 (reserved)
> [    0.000000]  modified: 00000000ffb00000 - 0000000100000000 (reserved)
> [    0.000000]  modified: 0000000100000000 - 00000001725dc000 (usable)
> [    0.000000] init_memory_mapping: 0000000000000000-00000000dbdf9000
> [    0.000000] init_memory_mapping: 0000000100000000-00000001725dc000
> [    0.000000] RAMDISK: 01b62000 - 029c1000
> [    0.000000] ACPI: RSDP 00000000000febf0 00024 (v02 DELL  )
> [    0.000000] ACPI: XSDT 00000000000fcc3c 00084 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: FACP 00000000000fcd34 000F4 (v03 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: DSDT 00000000ffe9a4ee 05732 (v01   DELL    dt_ex 00001000 INTL 20050624)
> [    0.000000] ACPI: FACS 00000000dbdf9c00 00040
> [    0.000000] ACPI: SSDT 00000000ffe9fd41 000AC (v01   DELL    st_ex 00001000 INTL 20050624)
> [    0.000000] ACPI: APIC 00000000000fce28 0016A (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: BOOT 00000000000fcf92 00028 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: ASF! 00000000000fcfba 00096 (v32 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: MCFG 00000000000fd050 0003E (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: HPET 00000000000fd08e 00038 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: TCPA 00000000000fd2ea 00032 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: DMAR 00000000000fd31c 000F8 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: SLIC 00000000000fd0c6 00176 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: _RAT 00000000000fdece 00030 (v01 DELL    B10K    00000015 ASL  00000061)
> [    0.000000] ACPI: SSDT 00000000dbe4dc00 010F4 (v01  INTEL PPM RCM  80000001 INTL 20061109)
> [    0.000000] (9 early reservations) ==> bootmem [0000000000 - 01725dc000]
> [    0.000000]   #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 - 0000001000]
> [    0.000000]   #1 [0003555000 - 0003574000]   XEN PAGETABLES ==> [0003555000 - 0003574000]
> [    0.000000]   #2 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 - 0000008000]
> [    0.000000]   #3 [0001000000 - 0001b415f4]    TEXT DATA BSS ==> [0001000000 - 0001b415f4]
> [    0.000000]   #4 [0001b62000 - 00029c1000]          RAMDISK ==> [0001b62000 - 00029c1000]
> [    0.000000]   #5 [00029c1000 - 0003555000]   XEN START INFO ==> [00029c1000 - 0003555000]
> [    0.000000]   #6 [0001b42000 - 0001b42184]              BRK ==> [0001b42000 - 0001b42184]
> [    0.000000]   #7 [0000100000 - 00007c2000]          PGTABLE ==> [0000100000 - 00007c2000]
> [    0.000000]   #8 [0003574000 - 0003909000]          PGTABLE ==> [0003574000 - 0003909000]
> [    0.000000] Zone PFN ranges:
> [    0.000000]   DMA      0x00000000 -> 0x00001000
> [    0.000000]   DMA32    0x00001000 -> 0x00100000
> [    0.000000]   Normal   0x00100000 -> 0x001725dc
> [    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 -> 0x0000009e
> [    0.000000]     0: 0x00000100 -> 0x000dbdf9
> [    0.000000]     0: 0x00100000 -> 0x001725dc
> [    0.000000] ACPI: PM-Timer IO Port: 0x808
> [    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x01] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x02] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x03] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x10] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x11] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x12] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x13] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x14] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x15] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x16] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x17] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x18] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x19] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x20] lapic_id[0x00] disabled)
> [    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
> [    0.000000] ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
> [    0.000000] IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
> [    0.000000] ACPI: IOAPIC (id[0x09] address[0xfec80000] gsi_base[24])
> [    0.000000] IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
> [    0.000000] ACPI: IOAPIC (id[0x0a] address[0xfec88000] gsi_base[48])
> [    0.000000] IOAPIC[2]: apic_id 10, version 32, address 0xfec88000, GSI 48-71
> [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [    0.000000] ACPI: BIOS IRQ0 pin2 override ignored.
> [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> [    0.000000] Using ACPI (MADT) for SMP configuration information
> [    0.000000] ACPI: HPET id: 0x8086a301 base: 0xfed00000
> [    0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs
> (XEN) io_apic.c:2290:
> (XEN) ioapic_guest_write: apic=0, pin=0, irq=0
> (XEN) ioapic_guest_write: new_entry=000109f0
> (XEN) ioapic_guest_write: old_entry=000100f0 pirq=0
> (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
> (XEN) io_apic.c:2290:
> (XEN) ioapic_guest_write: apic=0, pin=2, irq=2
> (XEN) ioapic_guest_write: new_entry=00010940
> (XEN) ioapic_guest_write: old_entry=00000940 pirq=0
> (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
> (XEN) irq.c:1445: dom0: pirq 0 or irq 3 already mapped
> (XEN) io_apic.c:2290:
> (XEN) ioapic_guest_write: apic=0, pin=4, irq=4
> (XEN) ioapic_guest_write: new_entry=000109f1
> (XEN) ioapic_guest_write: old_entry=000009f1 pirq=0
> (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
> (XEN) irq.c:1445: dom0: pirq 0 or irq 5 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 6 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 7 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 8 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 9 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 10 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 11 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 12 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 13 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 14 already mapped
> (XEN) irq.c:1445: dom0: pirq 0 or irq 15 already mapped
> (XEN) allocated vector b0 for irq 16
> (XEN) irq.c:1445: dom0: pirq 0 or irq 16 already mapped
> (XEN) allocated vector b8 for irq 17
> (XEN) irq.c:1445: dom0: pirq 0 or irq 17 already mapped
> (XEN) allocated vector c0 for irq 18
> (XEN) irq.c:1445: dom0: pirq 0 or irq 18 already mapped
> (XEN) allocated vector c8 for irq 19
> (XEN) irq.c:1445: dom0: pirq 0 or irq 19 already mapped
> (XEN) allocated vector d0 for irq 20
> (XEN) irq.c:1445: dom0: pirq 0 or irq 20 already mapped
> (XEN) allocated vector d8 for irq 21
> (XEN) irq.c:1445: dom0: pirq 0 or irq 21 already mapped
> (XEN) allocated vector 21 for irq 22
> (XEN) irq.c:1445: dom0: pirq 0 or irq 22 already mapped
> (XEN) allocated vector 29 for irq 23
> (XEN) irq.c:1445: dom0: pirq 0 or irq 23 already mapped
> (XEN) allocated vector 31 for irq 24
> (XEN) irq.c:1445: dom0: pirq 0 or irq 24 already mapped
> (XEN) allocated vector 39 for irq 25
> (XEN) irq.c:1445: dom0: pirq 0 or irq 25 already mapped
> (XEN) allocated vector 41 for irq 26
> (XEN) irq.c:1445: dom0: pirq 0 or irq 26 already mapped
> (XEN) allocated vector 49 for irq 27
> (XEN) irq.c:1445: dom0: pirq 0 or irq 27 already mapped
> (XEN) allocated vector 51 for irq 28
> (XEN) irq.c:1445: dom0: pirq 0 or irq 28 already mapped
> (XEN) allocated vector 59 for irq 29
> (XEN) irq.c:1445: dom0: pirq 0 or irq 29 already mapped
> (XEN) allocated vector 61 for irq 30
> (XEN) irq.c:1445: dom0: pirq 0 or irq 30 already mapped
> (XEN) allocated vector 69 for irq 31
> (XEN) irq.c:1445: dom0: pirq 0 or irq 31 already mapped
> (XEN) allocated vector 71 for irq 32
> (XEN) irq.c:1445: dom0: pirq 0 or irq 32 already mapped
> (XEN) allocated vector 79 for irq 33
> (XEN) irq.c:1445: dom0: pirq 0 or irq 33 already mapped
> (XEN) allocated vector 81 for irq 34
> (XEN) irq.c:1445: dom0: pirq 0 or irq 34 already mapped
> (XEN) allocated vector 89 for irq 35
> (XEN) irq.c:1445: dom0: pirq 0 or irq 35 already mapped
> (XEN) allocated vector 91 for irq 36
> (XEN) irq.c:1445: dom0: pirq 0 or irq 36 already mapped
> (XEN) allocated vector 99 for irq 37
> (XEN) irq.c:1445: dom0: pirq 0 or irq 37 already mapped
> (XEN) allocated vector a1 for irq 38
> (XEN) irq.c:1445: dom0: pirq 0 or irq 38 already mapped
> (XEN) allocated vector a9 for irq 39
> (XEN) irq.c:1445: dom0: pirq 0 or irq 39 already mapped
> (XEN) allocated vector b1 for irq 40
> (XEN) irq.c:1445: dom0: pirq 0 or irq 40 already mapped
> (XEN) allocated vector b9 for irq 41
> (XEN) irq.c:1445: dom0: pirq 0 or irq 41 already mapped
> (XEN) allocated vector c1 for irq 42
> (XEN) irq.c:1445: dom0: pirq 0 or irq 42 already mapped
> (XEN) allocated vector c9 for irq 43
> (XEN) irq.c:1445: dom0: pirq 0 or irq 43 already mapped
> (XEN) allocated vector d1 for irq 44
> (XEN) irq.c:1445: dom0: pirq 0 or irq 44 already mapped
> (XEN) allocated vector d9 for irq 45
> (XEN) irq.c:1445: dom0: pirq 0 or irq 45 already mapped
> (XEN) allocated vector 22 for irq 46
> (XEN) irq.c:1445: dom0: pirq 0 or irq 46 already mapped
> (XEN) allocated vector 2a for irq 47
> (XEN) irq.c:1445: dom0: pirq 0 or irq 47 already mapped
> (XEN) allocated vector 32 for irq 48
> (XEN) irq.c:1445: dom0: pirq 0 or irq 48 already mapped
> (XEN) allocated vector 3a for irq 49
> (XEN) irq.c:1445: dom0: pirq 0 or irq 49 already mapped
> (XEN) allocated vector 42 for irq 50
> (XEN) irq.c:1445: dom0: pirq 0 or irq 50 already mapped
> (XEN) allocated vector 4a for irq 51
> (XEN) irq.c:1445: dom0: pirq 0 or irq 51 already mapped
> (XEN) allocated vector 52 for irq 52
> (XEN) irq.c:1445: dom0: pirq 0 or irq 52 already mapped
> (XEN) allocated vector 5a for irq 53
> (XEN) irq.c:1445: dom0: pirq 0 or irq 53 already mapped
> (XEN) allocated vector 62 for irq 54
> (XEN) irq.c:1445: dom0: pirq 0 or irq 54 already mapped
> (XEN) allocated vector 6a for irq 55
> (XEN) irq.c:1445: dom0: pirq 0 or irq 55 already mapped
> (XEN) allocated vector 72 for irq 56
> (XEN) irq.c:1445: dom0: pirq 0 or irq 56 already mapped
> (XEN) allocated vector 7a for irq 57
> (XEN) irq.c:1445: dom0: pirq 0 or irq 57 already mapped
> (XEN) allocated vector 8a for irq 58
> (XEN) irq.c:1445: dom0: pirq 0 or irq 58 already mapped
> (XEN) allocated vector 92 for irq 59
> (XEN) irq.c:1445: dom0: pirq 0 or irq 59 already mapped
> (XEN) allocated vector 9a for irq 60
> (XEN) irq.c:1445: dom0: pirq 0 or irq 60 already mapped
> (XEN) allocated vector a2 for irq 61
> (XEN) irq.c:1445: dom0: pirq 0 or irq 61 already mapped
> (XEN) allocated vector aa for irq 62
> (XEN) irq.c:1445: dom0: pirq 0 or irq 62 already mapped
> (XEN) allocated vector b2 for irq 63
> (XEN) irq.c:1445: dom0: pirq 0 or irq 63 already mapped
> (XEN) allocated vector ba for irq 64
> (XEN) irq.c:1445: dom0: pirq 0 or irq 64 already mapped
> (XEN) allocated vector c2 for irq 65
> (XEN) irq.c:1445: dom0: pirq 0 or irq 65 already mapped
> (XEN) allocated vector ca for irq 66
> (XEN) irq.c:1445: dom0: pirq 0 or irq 66 already mapped
> (XEN) allocated vector d2 for irq 67
> (XEN) irq.c:1445: dom0: pirq 0 or irq 67 already mapped
> (XEN) allocated vector da for irq 68
> (XEN) irq.c:1445: dom0: pirq 0 or irq 68 already mapped
> (XEN) allocated vector 23 for irq 69
> (XEN) irq.c:1445: dom0: pirq 0 or irq 69 already mapped
> (XEN) allocated vector 2b for irq 70
> (XEN) irq.c:1445: dom0: pirq 0 or irq 70 already mapped
> (XEN) allocated vector 33 for irq 71
> (XEN) irq.c:1445: dom0: pirq 0 or irq 71 already mapped
> [    0.000000] PM: Registered nosave memory: 0000000000001000 - 0000000000006000
> [    0.000000] PM: Registered nosave memory: 000000000009e000 - 00000000000a0000
> [    0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
> [    0.000000] PM: Registered nosave memory: 00000000dbdf9000 - 00000000dbdfa000
> [    0.000000] PM: Registered nosave memory: 00000000dbdfa000 - 00000000dbe4b000
> [    0.000000] PM: Registered nosave memory: 00000000dbe4b000 - 00000000dbe4c000
> [    0.000000] PM: Registered nosave memory: 00000000dbe4c000 - 00000000dbe4d000
> [    0.000000] PM: Registered nosave memory: 00000000dbe4d000 - 00000000dbe4e000
> [    0.000000] PM: Registered nosave memory: 00000000dbe4e000 - 00000000dc000000
> [    0.000000] PM: Registered nosave memory: 00000000dc000000 - 00000000f8000000
> [    0.000000] PM: Registered nosave memory: 00000000f8000000 - 00000000fd000000
> [    0.000000] PM: Registered nosave memory: 00000000fd000000 - 00000000fe000000
> [    0.000000] PM: Registered nosave memory: 00000000fe000000 - 00000000fed00000
> [    0.000000] PM: Registered nosave memory: 00000000fed00000 - 00000000fee00000
> [    0.000000] PM: Registered nosave memory: 00000000fee00000 - 00000000fef00000
> [    0.000000] PM: Registered nosave memory: 00000000fef00000 - 00000000ffb00000
> [    0.000000] PM: Registered nosave memory: 00000000ffb00000 - 0000000100000000
> [    0.000000] Allocating PCI resources starting at dc000000 (gap: dc000000:1c000000)
> [    0.000000] NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:4 nr_node_ids:1
> [    0.000000] PERCPU: Allocated 22 4k pages, static data 88096 bytes
> [    1.942599] Xen: using vcpu_info placement
> [    1.946571] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 1346468
> [    1.954617] Kernel command line: ro root=UUID=edbcbc29-f3e4-4985-80c1-3c3b0ce24d17  LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us console=hvc0 earlyprintk=xen xen-pciback.hide=(24:00.0)(24:00.1)(25:00.0)(25:00.1) acpi_skip_timer_override
> [    1.977820] PID hash table entries: 4096 (order: 12, 32768 bytes)
> [    1.984930] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
> [    1.994157] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
> [    2.002360] Initializing CPU#0
> [    2.005557] PCI-DMA: Using Xen software bounce buffering for IO (Xen-SWIOTLB)
> [    2.043084] Placing 64MB Xen software IO TLB between ffff880020000000 - ffff880024000000
> [    2.050987] Xen software IO TLB at phys 0x20000000 - 0x24000000
> [    2.081254] Memory: 5270320k/6068080k available (5468k kernel code, 592312k absent, 204716k reserved, 3617k data, 528k init)
> [    2.092292] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> [    2.099903] Hierarchical RCU implementation.
> [    2.104129] NR_IRQS:4352 nr_irqs:1024
> [    2.107829] xen_set_ioapic_routing: irq 0 gsi 0 vector 0 ioapic 0 pin 0 triggering 0 polarity 0
> (XEN) io_apic.c:2290:
> (XEN) ioapic_guest_write: apic=0, pin=0, irq=0
> (XEN) ioapic_guest_write: new_entry=000009f0
> (XEN) ioapic_guest_write: old_entry=000100f0 pirq=0
> (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
> [    2.137538] xen_set_ioapic_routing: irq 1 gsi 1 vector 1 ioapic 0 pin 1 triggering 0 polarity 0
> [    2.146195] xen_set_ioapic_routing: irq 2 gsi 2 vector 2 ioapic 0 pin 2 triggering 0 polarity 0
> [    2.154850] xen_set_ioapic_routing: irq 3 gsi 3 vector 3 ioapic 0 pin 3 triggering 0 polarity 0
> [    2.163502] xen_set_ioapic_routing: irq 4 gsi 4 vector 4 ioapic 0 pin 4 triggering 0 polarity 0
> [    2.172157] xen_set_ioapic_routing: irq 5 gsi 5 vector 5 ioapic 0 pin 5 triggering 0 polarity 0
> [    2.180810] xen_set_ioapic_routing: irq 6 gsi 6 vector 6 ioapic 0 pin 6 triggering 0 polarity 0
> [    2.189466] xen_set_ioapic_routing: irq 7 gsi 7 vector 7 ioapic 0 pin 7 triggering 0 polarity 0
> [    2.198119] xen_set_ioapic_routing: irq 8 gsi 8 vector 8 ioapic 0 pin 8 triggering 0 polarity 0
> [    2.206775] xen_set_ioapic_routing: irq 9 gsi 9 vector 9 ioapic 0 pin 9 triggering 1 polarity 0
> [    2.215428] xen_set_ioapic_routing: irq 10 gsi 10 vector 10 ioapic 0 pin 10 triggering 0 polarity 0
> [    2.224429] xen_set_ioapic_routing: irq 11 gsi 11 vector 11 ioapic 0 pin 11 triggering 0 polarity 0
> [    2.233429] xen_set_ioapic_routing: irq 12 gsi 12 vector 12 ioapic 0 pin 12 triggering 0 polarity 0
> [    2.242430] xen_set_ioapic_routing: irq 13 gsi 13 vector 13 ioapic 0 pin 13 triggering 0 polarity 0
> [    2.251429] xen_set_ioapic_routing: irq 14 gsi 14 vector 14 ioapic 0 pin 14 triggering 0 polarity 0
> [    2.260430] xen_set_ioapic_routing: irq 15 gsi 15 vector 15 ioapic 0 pin 15 triggering 0 polarity 0
> [    2.269430] Detected 2128.034 MHz processor.
> [    2.279375] Console: colour VGA+ 80x25
> [    2.282946] console handover: boot [xenboot0] -> real [hvc0]
> [    2.288583] installing Xen timer for CPU 0
> [    2.292748] xen: vcpu_time_info placement not supported
> [    2.297998] Calibrating delay loop (skipped), value calculated using timer frequency.. 4256.06 BogoMIPS (lpj=2128034)
> [    2.308684] Security Framework initialized
> [    2.312799] SELinux:  Initializing.
> [    2.316361] Mount-cache hash table entries: 256
> [    2.321069] Initializing cgroup subsys ns
> [    2.325002] Initializing cgroup subsys cpuacct
> [    2.329504] Initializing cgroup subsys freezer
> [    2.334028] CPU: L1 I cache: 32K, L1 D cache: 32K
> [    2.338756] CPU: L2 cache: 256K
> [    2.341957] CPU: L3 cache: 4096K
> [    2.345253] CPU: Unsupported number of siblings 16
> [    2.349838] mce: CPU supports 9 MCE banks
> [    2.354190] Performance Counters: unsupported p6 CPU model 26 no PMU driver, software counters only.
> [    2.363344] SMP alternatives: switching to UP code
> [    2.407457] ACPI: Core revision 20090521
> [    2.672546] installing Xen timer for CPU 1
> [    2.676585] SMP alternatives: switching to SMP code
> [    0.000007] Initializing CPU#1
> [    0.000049] CPU: L1 I cache: 32K, L1 D cache: 32K
> [    0.000051] CPU: L2 cache: 256K
> [    0.000053] CPU: L3 cache: 4096K
> [    0.000056] CPU: Unsupported number of siblings 16
> [    0.000059] mce: CPU supports 9 MCE banks
> [    2.719736] installing Xen timer for CPU 2
> [    0.000006] Initializing CPU#2
> [    0.000045] CPU: L1 I cache: 32K, L1 D cache: 32K
> [    0.000048] CPU: L2 cache: 256K
> [    0.000049] CPU: L3 cache: 4096K
> [    0.000052] CPU: Unsupported number of siblings 16
> [    0.000056] mce: CPU supports 9 MCE banks
> [    2.747215] installing Xen timer for CPU 3
> [    0.000006] Initializing CPU#3
> [    0.000045] CPU: L1 I cache: 32K, L1 D cache: 32K
> [    0.000048] CPU: L2 cache: 256K
> [    0.000049] CPU: L3 cache: 4096K
> [    0.000052] CPU: Unsupported number of siblings 16
> [    0.000055] mce: CPU supports 9 MCE banks
> [    2.774649] Brought up 4 CPUs
> [    2.801463] Booting paravirtualized kernel on Xen
> [    2.806067] Xen version: 4.0.0-rc7 (preserve-AD) (dom0)
> [    2.811518] Grant tables using version 2 layout.
> [    2.816053] Grant table initialized
> [    2.819614] Time: 17:07:25  Date: 03/24/10
> [    2.823796] NET: Registered protocol family 16
> [    2.828609] xenbus_probe_init ok
> [    2.832082] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
> [    2.839549] ACPI: bus type pci registered
> [    2.843768] PCI: MCFG configuration 0: base f8000000 segment 0 buses 0 - 63
> [    2.850627] PCI: MCFG area at f8000000 reserved in E820
> [    2.869071] PCI: Using MMCONFIG at f8000000 - fbffffff
> [    2.874113] PCI: Using configuration type 1 for base access
> [    2.891413] bio: create slab <bio-0> at 0
> [    2.980580] ACPI: BIOS _OSI(Linux) query ignored
> [    3.004569] ACPI: Interpreter enabled
> [    3.008136] ACPI: (supports S0 S1 S3 S4 S5)
> [    3.012378] ACPI: Using IOAPIC for interrupt routing
> [    3.123980] ACPI Warning: Incorrect checksum in table [TCPA] - 00, should be 7F 20090521 tbutils-246
> [    3.133010] ACPI Warning: Incorrect checksum in table [_RAT] - 00, should be 63 20090521 tbutils-246
> [    3.142303] ACPI: No dock devices found.
> [    3.161083] ACPI: PCI Root Bridge [PCI0] (0000:00)
> [    3.166005] pci 0000:00:00.0: PME# supported from D0 D3hot D3cold
> [    3.171998] pci 0000:00:00.0: PME# disabled
> [    3.176390] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
> [    3.182382] pci 0000:00:01.0: PME# disabled
> [    3.186775] pci 0000:00:03.0: PME# supported from D0 D3hot D3cold
> [    3.192767] pci 0000:00:03.0: PME# disabled
> [    3.197164] pci 0000:00:07.0: PME# supported from D0 D3hot D3cold
> [    3.203156] pci 0000:00:07.0: PME# disabled
> [    3.208474] pci 0000:00:1a.7: PME# supported from D0 D3hot D3cold
> [    3.214467] pci 0000:00:1a.7: PME# disabled
> [    3.218843] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
> [    3.224852] pci 0000:00:1c.0: PME# disabled
> [    3.229237] pci 0000:00:1c.5: PME# supported from D0 D3hot D3cold
> [    3.235237] pci 0000:00:1c.5: PME# disabled
> [    3.240157] pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold
> [    3.246150] pci 0000:00:1d.7: PME# disabled
> [    3.250643] pci 0000:00:1f.0: quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
> [    3.258193] pci 0000:00:1f.0: quirk: region 0880-08bf claimed by ICH6 GPIO
> [    3.265120] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at 0c00 (mask 007f)
> [    3.272731] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 2 PIO at 00e0 (mask 0007)
> [    3.280348] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 3 PIO at 0900 (mask 003f)
> [    3.288227] pci 0000:00:1f.2: PME# supported from D3hot
> [    3.293357] pci 0000:00:1f.2: PME# disabled
> [    3.297872] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
> [    3.303864] pci 0000:01:00.0: PME# disabled
> [    3.309163] pci 0000:06:00.0: PME# supported from D3hot D3cold
> [    3.314902] pci 0000:06:00.0: PME# disabled
> [    3.319459] pci 0000:07:0a.0: PME# supported from D0 D1 D2 D3hot D3cold
> [    3.325976] pci 0000:07:0a.0: PME# disabled
> [    3.330278] pci 0000:00:1e.0: transparent bridge
> (XEN) PCI add device 00:00.0
> (XEN) PCI add device 00:01.0
> (XEN) PCI add device 00:03.0
> (XEN) PCI add device 00:07.0
> (XEN) PCI add device 00:14.0
> (XEN) PCI add device 00:14.1
> (XEN) PCI add device 00:14.2
> (XEN) PCI add device 00:1a.0
> (XEN) PCI add device 00:1a.1
> (XEN) PCI add device 00:1a.2
> (XEN) PCI add device 00:1a.7
> (XEN) PCI add device 00:1c.0
> (XEN) PCI add device 00:1c.5
> (XEN) PCI add device 00:1d.0
> (XEN) PCI add device 00:1d.1
> (XEN) PCI add device 00:1d.2
> (XEN) PCI add device 00:1d.7
> (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 01:00.0
> (XEN) PCI add device 03:00.0
> (XEN) PCI add device 06:00.0
> (XEN) PCI add device 07:0a.0
> [    4.380036] ACPI: PCI Root Bridge [PCI7] (0000:20)
> [    4.384962] pci 0000:20:03.0: PME# supported from D0 D3hot D3cold
> [    4.390955] pci 0000:20:03.0: PME# disabled
> [    4.395365] pci 0000:20:07.0: PME# supported from D0 D3hot D3cold
> [    4.401358] pci 0000:20:07.0: PME# disabled
> [    4.405762] pci 0000:20:09.0: PME# supported from D0 D3hot D3cold
> [    4.411753] pci 0000:20:09.0: PME# disabled
> [    4.416710] pci 0000:22:00.0: PME# supported from D0 D3hot D3cold
> [    4.422704] pci 0000:22:00.0: PME# disabled
> [    4.427207] pci 0000:23:01.0: PME# supported from D0 D3hot D3cold
> [    4.433200] pci 0000:23:01.0: PME# disabled
> [    4.437604] pci 0000:23:02.0: PME# supported from D0 D3hot D3cold
> [    4.443597] pci 0000:23:02.0: PME# disabled
> (XEN) PCI add device 20:03.0
> (XEN) PCI add device 20:07.0
> (XEN) PCI add device 20:09.0
> (XEN) PCI add device 20:14.0
> (XEN) PCI add device 20:14.1
> (XEN) PCI add device 20:14.2
> (XEN) PCI add device 22:00.0
> (XEN) PCI add device 23:01.0
> (XEN) PCI add device 23:02.0
> (XEN) PCI add device 24:00.0
> (XEN) PCI add device 24:00.1
> (XEN) PCI add device 25:00.0
> (XEN) PCI add device 25:00.1
> [    4.592250] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 15)
> [    4.599946] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 *10 11 12 15)
> [    4.607633] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 9 10 11 12 15)
> [    4.615320] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 *9 10 11 12 15)
> [    4.623005] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 *9 10 11 12 15)
> [    4.630684] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11 12 15) *0, disabled.
> [    4.639490] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 *9 10 11 12 15)
> [    4.647181] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 *5 6 7 9 10 11 12 15)
> [    4.654695] xenbus_probe_backend_init bus registered ok
> [    4.659879] xenbus_probe_frontend_init bus registered ok
> [    4.665187] xen_balloon: Initialising balloon driver with page order 0.
> [    4.672256] SCSI subsystem initialized
> [    4.676431] usbcore: registered new interface driver usbfs
> [    4.681888] usbcore: registered new interface driver hub
> [    4.687270] usbcore: registered new device driver usb
> [    4.692702] PCI: Using ACPI for IRQ routing
> [    4.697003] IO APIC resources couldn't be allocated.
> [    4.727285] cfg80211: Using static regulatory domain info
> [    4.732586] cfg80211: Regulatory domain: US
> [    4.736826]  (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
> [    4.744092]  (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm)
> [    4.750933]  (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
> [    4.757770]  (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
> [    4.764606]  (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
> [    4.771443]  (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
> [    4.778280]  (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm)
> [    4.785128] cfg80211: Calling CRDA for country: US
> [    4.790015] NetLabel: Initializing
> [    4.793419] NetLabel:  domain hash size = 128
> [    4.797833] NetLabel:  protocols = UNLABELED CIPSOv4
> [    4.802862] NetLabel:  unlabeled traffic allowed by default
> [    4.808653] DMAR:Host address width 40
> [    4.812310] DMAR:DRHD base: 0x000000dfffe000 flags: 0x0
> [    4.817604] IOMMU dfffe000: ver 1:0 cap c90780106f0462 ecap f020fe
> [    4.823816] DMAR:DRHD base: 0x000000fedc0000 flags: 0x1
> [    4.829105] IOMMU fedc0000: ver 1:0 cap c90780106f0462 ecap f020f6
> [    4.835325] DMAR:RMRR base: 0x000000dbe58000 end: 0x000000dbe6ffff
> [    4.841556] DMAR:ATSR flags: 0x0
> [    4.844844] DMAR:ATSR flags: 0x0
> [    4.848133] Not all IO-APIC's listed under remapping hardware
> [    4.854028] IOMMU 0xdfffe000: using Queued invalidation
> [    4.859217] IOMMU 0xfedc0000: using Queued invalidation
> [    4.864493] IOMMU: Setting RMRR:
> [    4.867778] IOMMU: Setting identity map for device 0000:00:1d.0 [0xdbe58000 - 0xdbe70000]
> [    4.876053] IOMMU: Setting identity map for device 0000:00:1d.1 [0xdbe58000 - 0xdbe70000]
> [    4.884264] IOMMU: Setting identity map for device 0000:00:1d.2 [0xdbe58000 - 0xdbe70000]
> [    4.892485] IOMMU: Setting identity map for device 0000:00:1d.7 [0xdbe58000 - 0xdbe70000]
> [    4.900709] IOMMU: Setting identity map for device 0000:00:1a.0 [0xdbe58000 - 0xdbe70000]
> [    4.908928] IOMMU: Setting identity map for device 0000:00:1a.1 [0xdbe58000 - 0xdbe70000]
> [    4.917150] IOMMU: Setting identity map for device 0000:00:1a.2 [0xdbe58000 - 0xdbe70000]
> [    4.925390] IOMMU: Setting identity map for device 0000:00:1a.7 [0xdbe58000 - 0xdbe70000]
> [    4.933612] IOMMU: Prepare 0-16MiB unity mapping for LPC
> [    4.938938] IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0x1000000]
> [    4.946651] VT-d detected invalid descriptor: low=11, high=0
> <<hangs here>>
>
>