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Re: [Xen-devel] Re: [Xen-users] pvops dom0 kernel: Unable to locate IOAPIC for GSI 2 and 9


  • To: Pasi Kärkkäinen <pasik@xxxxxx>
  • From: kishore kumar <bodkekumar@xxxxxxxxx>
  • Date: Tue, 16 Mar 2010 15:40:46 -0700
  • Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 16 Mar 2010 15:43:17 -0700
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I am not sure.  Can you please let me know how to check this? any command ??

On Tue, Mar 16, 2010 at 3:29 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
On Tue, Mar 16, 2010 at 03:22:50PM -0700, kishore kumar wrote:
>    attached  is the log captured in with the word document .
>

Scanning logical volumes
 Reading all physical volumes.  This may take a while...
Activating logical volumes
 Volume group "VolGroup01" not found
Trying to resume from /dev/VolGroup01/LogVol01
Unable to access resume device (/dev/VolGroup01/LogVol01)
Creating root device.
Mounting root filesystem.
mount: could not find filesystem '/dev/root'
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory
init used greatest stack depth: 4088 bytes left
Kernel panic - not syncing: Attempted to kill init!

So it seems it gets all the way to executing the initrd image,
which then fails to mount the root fs.

Earlier in the log:

ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: ATA-8: Hitachi HDT721025SLA380, STBOA3AA, max UDMA/133
ata1.00: 488397168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA
ata1.00: configured for UDMA/133
scsi 0:0:0:0: Direct-Access     ATA      Hitachi HDT72102 STBO PQ: 0 ANSI: 5
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:0:0: [sda] 488397168 512-byte logical blocks: (250 GB/232 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sda: sda1 sda2
sd 0:0:0:0: [sda] Attached SCSI disk

so /dev/sda was detected. Is your root lvm volume on /dev/sda ?
Is /dev/VolGroup01/LogVol01 really your root fs?

-- Pasi


>
>
>    On Tue, Mar 16, 2010 at 3:03 PM, Pasi Kärkkäinen <[1]pasik@xxxxxx> wrote:
>
>      On Tue, Mar 16, 2010 at 02:56:06PM -0700, kishore kumar wrote:
>      >    Please find the attached log file after fixing the dom 0 kernel cmd
>      line
>      >    as below
>      >
>      >    ro root=/dev/VolGroup01/LogVol00 console=hvc0 earlyprintk=xen
>      nomodeset
>      >
>
>      There's something wrong with the log, the dom0 kernel parts are all on
>      one line..
>      It's really difficult to read it.
>
>      -- Pasi
>
>      >    Thanks
>      >
>      >
>      >    On Tue, Mar 16, 2010 at 2:29 PM, Pasi Kärkkäinen
>      <[1][2]pasik@xxxxxx> wrote:
>      >
>      >      On Tue, Mar 16, 2010 at 02:16:22PM -0700, kishore kumar wrote:
>      >      >    I did below steps.
>      >      >
>      >      >
>      >      >     I pulled DOM 0 kernel from
>      >      >    git clone
>      >
>       git://[1][2][3]git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>      >      >    linux-2.6-xen
>      >      >
>      >      >    cd linux-2.6-xen
>      >      >
>      >      >    make clean
>      >      >
>      >      >    cp -a .config .config-old
>      >      >
>      >      >    wget -O .config
>      >      >
>      >
>      [2][3][4]http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>      >      >
>      >      >    make oldconfig
>      >      >
>      >      >    make bzImage
>      >      >
>      >      >    make modules
>      >      >
>      >      >    make modules_install
>      >      >
>      >      >    cp -a .config /boot/config-2.6.32.9
>      >      >
>      >      >    cp -a System.map /boot/System.map-2.6.32.9
>      >      >
>      >      >    cp -a arch/x86/boot/bzImage /boot/vmlinuz-2.6.32.9
>      >      >
>      >      >    and modified the grub.conf as below
>      >      >
>      >      >
>      >      >    Root(hd0,0)
>      >      >
>      >      >     kernel /xen.gz console=vga,com1 com1=115200,8n1 msi=1
>      iommu=1
>      >      >
>      >      >     module /vmlinuz-2.6.32.9 ro root=/dev/VolGroup01/LogVo100
>       rhgb
>      >      quiet
>      >      >
>      >      >     module /initrd-2.6.32.9.img
>      >      >
>      >      >
>      >      >    and rebooted the machine.  Then It booted with some xen
>      messages
>      >      and
>      >      >    stopped.  Those were the messages captured from serial
>      console.
>      >      >
>      >      >    Please let me know if I did something wrong here.
>      >      >
>      >
>      >      Please fix the kernel cmdline based on my earlier email, and
>      capture and
>      >      post the
>      >      serial console log again!
>      >
>      >      -- Pasi
>      >      >
>      >      >
>      >      >    On Tue, Mar 16, 2010 at 1:20 PM, Pasi Kärkkäinen
>      >      <[3][4][5]pasik@xxxxxx> wrote:
>      >      >
>      >      >      On Tue, Mar 16, 2010 at 01:16:28PM -0700, Jeremy
>      Fitzhardinge
>      >      wrote:
>      >      >      > On 03/16/2010 12:48 PM, Pasi Kärkkäinen wrote:
>      >      >      >> On Tue, Mar 16, 2010 at 09:43:44PM +0200, Pasi
>      Kärkkäinen
>      >      wrote:
>      >      >      >>
>      >      >      >>> On Tue, Mar 16, 2010 at 10:32:17AM -0700, kishore
>      kumar
>      >      wrote:
>      >      >      >>>
>      >      >      >>>>     Attached is the output captured from serial
>      console.
>      >      >      >>>>
>      >      >      >>>>     Machine does not boot after compiling xen 3.4.3
>      with
>      >      pv_ops dom
>      >      >      0 kernel.
>      >      >      >>>>
>      >      >      >>>>     Please let me know what is going wrong here.
>      >      >      >>>>
>      >      >      >>>>
>      >      >      >>> Ok this looks like a bug that is already being sorted
>      out on
>      >      >      xen-devel mailinglist.
>      >      >      >>> I added CC to xen-devel.
>      >      >      >>>
>      >      >      >>>
>      >      >      >>
>      >      >      >
>      >      >      > Those messages are not a problem in themselves, but the
>      related
>      >      >      problem
>      >      >      > is believed to be fixed in current xen/stable-2.6.32.x.
>       It
>      >      looks like
>      >      >      > the output stops there because the Xen console isn't set
>      up
>      >      properly
>      >      >      for
>      >      >      > some reason.
>      >      >      >
>      >      >
>      >      >      Yeah, remove "rhgb quiet" from the options.. the dom0
>      kernel
>      >      cmdline
>      >      >      should be like this:
>      >      >      ro root=/dev/VolGroup01/LogVol00 console=hvc0
>      earlyprintk=xen
>      >      nomodeset
>      >      >      -- Pasi
>      >      >
>      >      > References
>      >      >
>      >      >    Visible links
>      >      >    1.
>      [5][6]http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>      >      >    2.
>      >
>       [6][7]http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>      >      >    3. mailto:[7][8]pasik@xxxxxx
>      >
>      > References
>      >
>      >    Visible links
>      >    1. mailto:[9]pasik@xxxxxx
>      >    2.
>      [10]http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>      >    3.
>      [11]http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>      >    4. mailto:[12]pasik@xxxxxx
>      >    5.
>      [13]http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>      >    6.
>      [14]http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>      >    7. mailto:[15]pasik@xxxxxx
>      > Asserting Post complete GPIO!!!
>      > Transfer control to CSM 16-bit binary for legacy boot
>      >  __  __            _____ _  _    _____             _  _
>      >  \ \/ /___ _ __   |___ /| || |  |___ /    _ __ ___| || |     _ __  _
>      __ ___
>      >   \  // _ \ '_ \    |_ \| || |_   |_ \ __| '__/ __| || |_ __| '_ \|
>      '__/ _ \
>      >   /  \  __/ | | |  ___) |__   _| ___) |__| | | (__|__   _|__| |_) | |
>      |  __/
>      >  /_/\_\___|_| |_| |____(_) |_|(_)____/   |_|  \___|  |_|    | .__/|_|
>       \___|
>      >                                                             |_|
>      > (XEN) Xen version 3.4.3-rc4-pre (kishore@localdomain) (gcc version
>      4.1.2 20080704 (Red Hat 4.1.2-46)) Mon Mar 15 13:44:31 PDT 2010
>      > (XEN) Latest ChangeSet: Tue Mar 09 18:15:52 2010 +0000
>      19924:6e72f8c3c017
>      > (XEN) Command line: console=vga,com1 com1=115200,8n1 msi=1 iommu=1
>      > (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 - 000000000009d000 (usable)
>      > (XEN)  000000000009d000 - 00000000000a0000 (reserved)
>      > (XEN)  00000000000e0000 - 0000000000100000 (reserved)
>      > (XEN)  0000000000100000 - 000000006d597000 (usable)
>      > (XEN)  000000006d597000 - 000000006d686000 (reserved)
>      > (XEN)  000000006d686000 - 000000006f598000 (usable)
>      > (XEN)  000000006f598000 - 000000006f59a000 (reserved)
>      > (XEN)  000000006f59a000 - 000000006f5af000 (ACPI NVS)
>      > (XEN)  000000006f5af000 - 000000006f5d9000 (reserved)
>      > (XEN)  000000006f5d9000 - 000000006f5f9000 (ACPI data)
>      > (XEN)  000000006f5f9000 - 000000006f6df000 (ACPI NVS)
>      > (XEN)  000000006f6df000 - 000000006f700000 (ACPI data)
>      > (XEN)  000000006f700000 - 0000000080000000 (reserved)
>      > (XEN)  00000000a0000000 - 00000000b0000000 (reserved)
>      > (XEN)  00000000fc000000 - 00000000fd000000 (reserved)
>      > (XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
>      > (XEN)  00000000ffc00000 - 0000000100000000 (reserved)
>      > (XEN) System RAM: 1780MB (1823000kB)
>      > (XEN) ACPI: RSDP 000F03F0, 0024 (r2 INTEL )
>      > (XEN) ACPI: XSDT 6F6FE120, 0064 (r1 INTEL  THRLY           0
>      1000013)
>      > (XEN) ACPI: FACP 6F6FD000, 00F4 (r4 INTEL  THRLY           0 MSFT
>       100000D)
>      > (XEN) ACPI: DSDT 6F6F5000, 74F1 (r2 INTEL  THRLY           3 MSFT
>       100000D)
>      > (XEN) ACPI: FACS 6F5F9000, 0040
>      > (XEN) ACPI: APIC 6F6F4000, 01CC (r2 INTEL  THRLY           0 MSFT
>       100000D)
>      > (XEN) ACPI: MCFG 6F6F3000, 003C (r1 INTEL  THRLY           1 MSFT
>       100000D)
>      > (XEN) ACPI: HPET 6F6F2000, 0038 (r1 INTEL  THRLY           1 MSFT
>       100000D)
>      > (XEN) ACPI: SLIT 6F6F1000, 0030 (r1 INTEL  THRLY           1 MSFT
>       100000D)
>      > (XEN) ACPI: WDDT 6F6F0000, 0040 (r1 INTEL  THRLY           0 MSFT
>       100000D)
>      > (XEN) ACPI: SSDT 6F5D9000, 1FDDC (r1  INTEL SSDT  PM     4000 INTL
>      20061109)
>      > (XEN) ACPI: DMAR 6F6EE000, 01D0 (r1 INTEL  THRLY           1 MSFT
>       100000D)
>      > (XEN) Domain heap initialised
>      > (XEN) Processor #0 6:12 APIC version 21
>      > (XEN) Processor #2 6:12 APIC version 21
>      > (XEN) Processor #4 6:12 APIC version 21
>      > (XEN) Processor #16 6:12 APIC version 21
>      > (XEN) Processor #18 6:12 APIC version 21
>      > (XEN) Processor #20 6:12 APIC version 21
>      > (XEN) Processor #1 6:12 APIC version 21
>      > (XEN) Processor #3 6:12 APIC version 21
>      > (XEN) Processor #5 6:12 APIC version 21
>      > (XEN) Processor #17 6:12 APIC version 21
>      > (XEN) Processor #19 6:12 APIC version 21
>      > (XEN) Processor #21 6:12 APIC version 21
>      > (XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
>      > (XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec90000, GSI 24-47
>      > (XEN) Enabling APIC mode:  Phys.  Using 2 I/O APICs
>      > (XEN) Intel VT-d DMAR tables have been parsed.
>      > (XEN) Using scheduler: SMP Credit Scheduler (credit)
>      > (XEN) Detected 3200.207 MHz processor.
>      > (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) VMX: EPT is available.
>      > (XEN) VMX: VPID is available.
>      > (XEN) HVM: VMX enabled
>      > (XEN) HVM: Hardware Assisted Paging detected.
>      > (XEN) CPU0: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 1/2 eip 88000
>      > (XEN) CPU1: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 2/4 eip 88000
>      > (XEN) CPU2: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 3/16 eip 88000
>      > (XEN) CPU3: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 4/18 eip 88000
>      > (XEN) CPU4: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 5/20 eip 88000
>      > (XEN) CPU5: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 6/1 eip 88000
>      > (XEN) CPU6: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 7/3 eip 88000
>      > (XEN) CPU7: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 8/5 eip 88000
>      > (XEN) CPU8: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 9/17 eip 88000
>      > (XEN) CPU9: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 10/19 eip 88000
>      > (XEN) CPU10: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Booting processor 11/21 eip 88000
>      > (XEN) CPU11: Intel Genuine Intel(R) CPU             000  @ 3.20GHz
>      stepping 00
>      > (XEN) Total of 12 processors activated.
>      > (XEN) ENABLING IO-APIC IRQs
>      > (XEN)  -> Using new ACK method
>      > (XEN) checking TSC synchronization across 12 CPUs: passed.
>      > (XEN) Platform timer is 14.318MHz HPET
>      > ?(XEN) Brought up 12 CPUs
>      > (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 supported.
>      > (XEN) I/O virtualisation enabled
>      > (XEN) I/O virtualisation for PV guests disabled
>      > (XEN) xenoprof: Initialization failed. Intel processor model 44 for P6
>      class family is not supported
>      > (XEN) *** LOADING DOMAIN 0 ***
>      > (XEN)  Xen  kernel: 64-bit, lsb, compat32
>      > (XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x26bb000
>      > (XEN) PHYSICAL MEMORY ARRANGEMENT:
>      > (XEN)  Dom0 alloc.:   0000000064000000->0000000068000000 (404490 pages
>      to be allocated)
>      > (XEN) VIRTUAL MEMORY ARRANGEMENT:
>      > (XEN)  Loaded kernel: ffffffff81000000->ffffffff826bb000
>      > (XEN)  Init. ramdisk: ffffffff826bb000->ffffffff82d0d800
>      > (XEN)  Phys-Mach map: ffffffff82d0e000->ffffffff83044050
>      > (XEN)  Start info:    ffffffff83045000->ffffffff830454b4
>      > (XEN)  Page tables:   ffffffff83046000->ffffffff83063000
>      > (XEN)  Boot stack:    ffffffff83063000->ffffffff83064000
>      > (XEN)  TOTAL:         ffffffff80000000->ffffffff83400000
>      > (XEN)  ENTRY ADDRESS: ffffffff819c1200
>      > (XEN) Dom0 has maximum 12 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 128kB init memory.
>      > mapping kernel into physical memory
>      > Xen: setup ISA identity maps
>      > about to get started...
>      > Initializing cgroup subsys cpuset
>      > Initializing cgroup subsys cpu
>      > Linux version 2.6.32.9 (kishore@xxxxxxxxxxxxxxxxxxxxx) (gcc version
>      4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Mon Mar 15 15:16:28 PDT 2010
>      > Command line: ro root=/dev/VolGroup01/LogVol00 console=hvc0
>      earlyprintk=xen nomodeset
>      > KERNEL supported cpus:
>      >   Intel GenuineIntel
>      >   AMD AuthenticAMD
>      >   Centaur CentaurHauls
>      > BIOS-provided physical RAM map:
>      >  Xen: 0000000000000000 - 000000000009d000 (usable)
>      >  Xen: 000000000009d000 - 0000000000100000 (reserved)
>      >  Xen: 0000000000100000 - 0000000066c0a000 (usable)
>      >  Xen: 000000006d597000 - 000000006d686000 (reserved)
>      >  Xen: 000000006f598000 - 000000006f59a000 (reserved)
>      >  Xen: 000000006f59a000 - 000000006f5af000 (ACPI NVS)
>      >  Xen: 000000006f5af000 - 000000006f5d9000 (reserved)
>      >  Xen: 000000006f5d9000 - 000000006f5f9000 (ACPI data)
>      >  Xen: 000000006f5f9000 - 000000006f6df000 (ACPI NVS)
>      >  Xen: 000000006f6df000 - 000000006f700000 (ACPI data)
>      >  Xen: 000000006f700000 - 0000000080000000 (reserved)
>      >  Xen: 00000000a0000000 - 00000000b0000000 (reserved)
>      >  Xen: 00000000fc000000 - 00000000fd000000 (reserved)
>      >  Xen: 00000000fed1c000 - 00000000fed20000 (reserved)
>      >  Xen: 00000000ffc00000 - 0000000100000000 (reserved)
>      > bootconsole [xenboot0] enabled
>      > DMI 2.4 present.
>      > last_pfn = 0x66c0a max_arch_pfn = 0x400000000
>      > init_memory_mapping: 0000000000000000-0000000066c0a000
>      > RAMDISK: 026bb000 - 02d0d800
>      > ACPI: RSDP 00000000000f03f0 00024 (v02 INTEL )
>      > ACPI: XSDT 000000006f6fe120 00064 (v01 INTEL  THRLY    00000000
>       01000013)
>      > ACPI: FACP 000000006f6fd000 000F4 (v04 INTEL  THRLY    00000000 MSFT
>      0100000D)
>      > ACPI: DSDT 000000006f6f5000 074F1 (v02 INTEL  THRLY    00000003 MSFT
>      0100000D)
>      > ACPI: FACS 000000006f5f9000 00040
>      > ACPI: APIC 000000006f6f4000 001CC (v02 INTEL  THRLY    00000000 MSFT
>      0100000D)
>      > ACPI: MCFG 000000006f6f3000 0003C (v01 INTEL  THRLY    00000001 MSFT
>      0100000D)
>      > ACPI: HPET 000000006f6f2000 00038 (v01 INTEL  THRLY    00000001 MSFT
>      0100000D)
>      > ACPI: SLIT 000000006f6f1000 00030 (v01 INTEL  THRLY    00000001 MSFT
>      0100000D)
>      > ACPI: WDDT 000000006f6f0000 00040 (v01 INTEL  THRLY    00000000 MSFT
>      0100000D)
>      > ACPI: SSDT 000000006f5d9000 1FDDC (v01  INTEL SSDT  PM 00004000 INTL
>      20061109)
>      > ACPI:      000000006f6ee000 001D0 (v01 INTEL  THRLY    00000001 MSFT
>      0100000D)
>      > No NUMA configuration found
>      > Faking a node at 0000000000000000-0000000066c0a000
>      > Bootmem setup node 0 0000000000000000-0000000066c0a000
>      >   NODE_DATA [0000000000008000 - 000000000001ffff]
>      >   bootmap [0000000000020000 -  000000000002cd87] pages d
>      > (9 early reservations) ==> bootmem [0000000000 - 0066c0a000]
>      >   #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 -
>      0000001000]
>      >   #1 [0003046000 - 0003063000]   XEN PAGETABLES ==> [0003046000 -
>      0003063000]
>      >   #2 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 -
>      0000008000]
>      >   #3 [0001000000 - 000269ae98]    TEXT DATA BSS ==> [0001000000 -
>      000269ae98]
>      >   #4 [00026bb000 - 0002d0d800]          RAMDISK ==> [00026bb000 -
>      0002d0d800]
>      >   #5 [0002d0e000 - 0003046000]   XEN START INFO ==> [0002d0e000 -
>      0003046000]
>      >   #6 [000269b000 - 000269b011]              BRK ==> [000269b000 -
>      000269b011]
>      >   #7 [0000100000 - 000041a000]          PGTABLE ==> [0000100000 -
>      000041a000]
>      >   #8 [0000001000 - 0000001030]        ACPI SLIT ==> [0000001000 -
>      0000001030]
>      > found SMP MP-table at [ffff8800000fd750] fd750
>      > Zone PFN ranges:
>      >   DMA      0x00000000 -> 0x00001000
>      >   DMA32    0x00001000 -> 0x00100000
>      >   Normal   0x00100000 -> 0x00100000
>      > Movable zone start PFN for each node
>      > early_node_map[2] active PFN ranges
>      >     0: 0x00000000 -> 0x0000009d
>      >     0: 0x00000100 -> 0x00066c0a
>      > ACPI: PM-Timer IO Port: 0x408
>      > ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
>      > ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
>      > ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
>      > ACPI: LAPIC (acpi_id[0x03] lapic_id[0x10] enabled)
>      > ACPI: LAPIC (acpi_id[0x04] lapic_id[0x12] enabled)
>      > ACPI: LAPIC (acpi_id[0x05] lapic_id[0x14] enabled)
>      > ACPI: LAPIC (acpi_id[0x06] lapic_id[0x01] enabled)
>      > ACPI: LAPIC (acpi_id[0x07] lapic_id[0x03] enabled)
>      > ACPI: LAPIC (acpi_id[0x08] lapic_id[0x05] enabled)
>      > ACPI: LAPIC (acpi_id[0x09] lapic_id[0x11] enabled)
>      > ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x13] enabled)
>      > ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x15] enabled)
>      > ACPI: LAPIC (acpi_id[0x0c] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x0d] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x0e] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x0f] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x10] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x11] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x12] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x13] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x14] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x15] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x16] lapic_id[0xff] disabled)
>      > ACPI: LAPIC (acpi_id[0x17] lapic_id[0xff] disabled)
>      > ACPI: LAPIC_NMI (acpi_id[0x00] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x01] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x02] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x03] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x04] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x05] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x06] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x07] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x08] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x09] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x0a] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x0b] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x0c] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x0d] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x0e] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x0f] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x10] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x11] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x12] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x13] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x14] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x15] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x16] high level lint[0x1])
>      > ACPI: LAPIC_NMI (acpi_id[0x17] high level lint[0x1])
>      > ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
>      > IOAPIC[0]: apic_id 8, version 0, address 0xfec00000, GSI 0-0
>      > ACPI: IOAPIC (id[0x09] address[0xfec90000] gsi_base[24])
>      > IOAPIC[1]: apic_id 9, version 0, address 0xfec90000, GSI 24-24
>      > ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
>      > ERROR: Unable to locate IOAPIC for GSI 2
>      > ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
>      > ERROR: Unable to locate IOAPIC for GSI 9
>      > Using ACPI (MADT) for SMP configuration information
>      > ACPI: HPET id: 0x8086a401 base: 0xfed00000
>      > SMP: Allowing 12 CPUs, 0 hotplug CPUs
>      > PM: Registered nosave memory: 000000000009d000 - 0000000000100000
>      > Allocating PCI resources starting at b0000000 (gap: b0000000:4c000000)
>      > Booting paravirtualized kernel on Xen
>      > Xen version: 3.4.3-rc4-pre (preserve-AD) (dom0)
>      > NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:12 nr_node_ids:1
>      > PERCPU: Embedded 478 pages/cpu @ffff880005ebc000 s1928024 r8192 d21672
>      u1957888
>      > pcpu-alloc: s1928024 r8192 d21672 u1957888 alloc=478*4096
>      > pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07
>      > pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11
>      > Xen: using vcpu_info placement
>      > Built 1 zonelists in Node order, mobility grouping on.  Total pages:
>      409291
>      > Policy zone: DMA32
>      > Kernel command line: ro root=/dev/VolGroup01/LogVol00 console=hvc0
>      earlyprintk=xen nomodeset
>      > PID hash table entries: 4096 (order: 3, 32768 bytes)
>      > Initializing CPU#0
>      > DMA: Placing 64MB software IO TLB between ffff880007525000 -
>      ffff88000b525000
>      > DMA: software IO TLB at phys 0x7525000 - 0xb525000
>      > xen_swiotlb_fixup: buf=ffff880007525000 size=67108864
>      > xen_swiotlb_fixup: buf=ffff88000b585000 size=32768
>      > Memory: 1514268k/1683496k available (4654k kernel code, 396k absent,
>      168832k reserved, 3443k data, 3396k init)
>      > SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0, CPUs=12,
>      Nodes=1
>      > Hierarchical RCU implementation.
>      > NR_IRQS:4352 nr_irqs:3072
>      > Already setup the GSI :0
>      > Already setup the GSI :1
>      > Already setup the GSI :2
>      > Already setup the GSI :3
>      > Already setup the GSI :4
>      > Already setup the GSI :5
>      > Already setup the GSI :6
>      > Already setup the GSI :7
>      > Already setup the GSI :8
>      > Already setup the GSI :9
>      > Already setup the GSI :10
>      > Already setup the GSI :11
>      > Already setup the GSI :12
>      > Already setup the GSI :13
>      > Already setup the GSI :14
>      > Already setup the GSI :15
>      > ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
>      > ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
>      > xen: sci override: source_irq=9 global_irq=9 trigger=c polarity=1
>      > xen_allocate_pirq: returning irq 9 for gsi 9
>      > Already setup the GSI :9
>      > xen: acpi sci 9
>      > Console: colour VGA+ 80x25
>      > console [hvc0] enabled, bootconsole disabled console [hvc0] enabled,
>      bootconsole disabled
>      > Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo
>      Molnar ... MAX_LOCKDEP_SUBCLASSES:  8 ... MAX_LOCK_DEPTH:          48
>      ... MAX_LOCKDEP_KEYS:        8191 ... CLASSHASH_SIZE:          4096 ...
>      MAX_LOCKDEP_ENTRIES:     16384 ... MAX_LOCKDEP_CHAINS:      32768 ...
>      CHAINHASH_SIZE:          16384  memory used by lock dependency info:
>      6367 kB  per task-struct memory footprint: 2688 bytes allocated 17039360
>      bytes of page_cgroup please try 'cgroup_disable=memory' option if you
>      don't want memory cgroups installing Xen timer for CPU 0 Detected
>      3200.206 MHz processor. Calibrating delay loop (skipped), value
>      calculated using timer frequency.. 6400.41 BogoMIPS (lpj=3200206)
>      Security Framework initialized SELinux:  Initializing. Dentry cache hash
>      table entries: 262144 (order: 9, 2097152 bytes) Inode-cache hash table
>      entries: 131072 (order: 8, 1048576 bytes) Mount-cache hash table
>      entries: 256 Initializing cgroup subsys ns Initializing cgroup subsys
>      cpuacct Initializing cgroup subsys memory Initializing cgroup subsys
>      devices Initializing cgroup subsys freezer Initializing cgroup subsys
>      net_cls CPU: L1 I cache: 32K, L1 D cache: 32K CPU: L2 cache: 256K CPU:
>      L3 cache: 12288K CPU 0/0x0 -> Node 0 CPU: Unsupported number of siblings
>      32 Performance Events: unsupported p6 CPU model 44 no PMU driver,
>      software events only. lockdep: fixing up alternatives. SMP alternatives:
>      switching to UP code ACPI: Core revision 20090903 ftrace: converting
>      mcount calls to 0f 1f 44 00 00 ftrace: allocating 27971 entries in 110
>      pages installing Xen timer for CPU 1 lockdep: fixing up alternatives.
>      SMP alternatives: switching to SMP code Initializing CPU#1 CPU: L1 I
>      cache: 32K, L1 D cache: 32K CPU: L2 cache: 256K CPU: L3 cache: 12288K
>      CPU 1/0x0 -> Node 0 CPU: Unsupported number of siblings 32 installing
>      Xen timer for CPU 2 Initializing CPU#2 CPU: L1 I cache: 32K, L1 D cache:
>      32K CPU: L2 cache: 256K CPU: L3 cache: 12288K CPU 2/0x0 -> Node 0 CPU:
>      Unsupported number of siblings 32 installing Xen timer for CPU 3
>      Initializing CPU#3 CPU: L1 I cache: 32K, L1 D cache: 32K CPU: L2 cache:
>      256K CPU: L3 cache: 12288K CPU 3/0x0 -> Node 0 CPU: Unsupported number
>      of siblings 32 installing Xen timer for CPU 4 Initializing CPU#4 CPU: L1
>      I cache: 32K, L1 D cache: 32K CPU: L2 cache: 256K CPU: L3 cache: 12288K
>      CPU 4/0x0 -> Node 0 CPU: Unsupported number of siblings 32 installing
>      Xen timer for CPU 5 Initializing CPU#5 CPU: L1 I cache: 32K, L1 D cache:
>      32K CPU: L2 cache: 256K CPU: L3 cache: 12288K CPU 5/0x0 -> Node 0 CPU:
>      Unsupported number of siblings 32 installing Xen timer for CPU 6
>      Initializing CPU#6 CPU: L1 I cache: 32K, L1 D cache: 32K CPU: L2 cache:
>      256K CPU: L3 cache: 12288K CPU 6/0x0 -> Node 0 CPU: Unsupported number
>      of siblings 32 installing Xen timer for CPU 7 Initializing CPU#7 CPU: L1
>      I cache: 32K, L1 D cache: 32K CPU: L2 cache: 256K CPU: L3 cache: 12288K
>      CPU 7/0x0 -> Node 0 CPU: Unsupported number of siblings 32 installing
>      Xen timer for CPU 8 Initializing CPU#8 CPU: L1 I cache: 32K, L1 D cache:
>      32K CPU: L2 cache: 256K CPU: L3 cache: 12288K CPU 8/0x0 -> Node 0 CPU:
>      Unsupported number of siblings 32 installing Xen timer for CPU 9
>      Initializing CPU#9 CPU: L1 I cache: 32K, L1 D cache: 32K CPU: L2 cache:
>      256K CPU: L3 cache: 12288K CPU 9/0x0 -> Node 0 CPU: Unsupported number
>      of siblings 32 installing Xen timer for CPU 10 Initializing CPU#10 CPU:
>      L1 I cache: 32K, L1 D cache: 32K CPU: L2 cache: 256K CPU: L3 cache:
>      12288K CPU 10/0x0 -> Node 0 CPU: Unsupported number of siblings 32
>      installing Xen timer for CPU 11 Initializing CPU#11 CPU: L1 I cache:
>      32K, L1 D cache: 32K CPU: L2 cache: 256K CPU: L3 cache: 12288K CPU
>      11/0x0 -> Node 0 CPU: Unsupported number of siblings 32 Brought up 12
>      CPUs Grant table initialized regulator: core version 0.5 Time: 14:45:00
>       Date: 03/16/10 NET: Registered protocol family 16 xenbus_probe_init ok
>      ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
>      ACPI: bus type pci registered PCI: MCFG configuration 0: base a0000000
>      segment 0 buses 0 - 255 PCI: MCFG area at a0000000 reserved in E820 PCI:
>      Using MMCONFIG at a0000000 - afffffff PCI: Using configuration type 1
>      for base access bio: create slab <bio-0> at 0 ACPI Error: Field [CPB3]
>      at 96 exceeds Buffer [NULL] size 64 (bits) (20090903/dsopcode-596) ACPI
>      Error (psparse-0537): Method parse/execution failed [\_SB_._OSC] (Node
>      ffff880064e00c98), AE_AML_BUFFER_LIMIT ACPI: Interpreter enabled ACPI:
>      (supports S0 S1 S3 S4 S5) ACPI: Using IOAPIC for interrupt routing ACPI
>      Warning: Incorrect checksum in table [    ] - 97, should be DB
>      (20090903/tbutils-314) ACPI: No dock devices found. ACPI: PCI Root
>      Bridge [PCI0] (0000:00) pci 0000:00:01.0: PME# supported from D0 D3hot
>      D3cold pci 0000:00:01.0: PME# disabled pci 0000:00:02.0: PME# supported
>      from D0 D3hot D3cold pci 0000:00:02.0: PME# disabled pci 0000:00:03.0:
>      PME# supported from D0 D3hot D3cold pci 0000:00:03.0: PME# disabled pci
>      0000:00:04.0: PME# supported from D0 D3hot D3cold pci 0000:00:04.0: PME#
>      disabled pci 0000:00:05.0: PME# supported from D0 D3hot D3cold pci
>      0000:00:05.0: PME# disabled pci 0000:00:06.0: PME# supported from D0
>      D3hot D3cold pci 0000:00:06.0: PME# disabled pci 0000:00:07.0: PME#
>      supported from D0 D3hot D3cold pci 0000:00:07.0: PME# disabled pci
>      0000:00:08.0: PME# supported from D0 D3hot D3cold pci 0000:00:08.0: PME#
>      disabled pci 0000:00:09.0: PME# supported from D0 D3hot D3cold pci
>      0000:00:09.0: PME# disabled pci 0000:00:0a.0: PME# supported from D0
>      D3hot D3cold pci 0000:00:0a.0: PME# disabled pci 0000:00:13.0: PME#
>      supported from D0 D3hot D3cold pci 0000:00:13.0: PME# disabled pci
>      0000:00:1a.7: PME# supported from D0 D3hot D3cold pci 0000:00:1a.7: PME#
>      disabled pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold pci
>      0000:00:1c.0: PME# disabled pci 0000:00:1c.4: PME# supported from D0
>      D3hot D3cold pci 0000:00:1c.4: PME# disabled pci 0000:00:1c.5: PME#
>      supported from D0 D3hot D3cold pci 0000:00:1c.5: PME# disabled pci
>      0000:00:1d.7: PME# supported from D0 D3hot D3cold pci 0000:00:1d.7: PME#
>      disabled pci 0000:00:1f.0: quirk: region 0400-047f claimed by ICH6
>      ACPI/GPIO/TCO pci 0000:00:1f.0: quirk: region 0500-053f claimed by ICH6
>      GPIO pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at 0680 (mask
>      000f) pci 0000:00:1f.0: ICH7 LPC Generic IO decode 2 PIO at 0ca0 (mask
>      000f) pci 0000:00:1f.0: ICH7 LPC Generic IO decode 3 PIO at 0600 (mask
>      001f) pci 0000:00:1f.2: PME# supported from D3hot pci 0000:00:1f.2: PME#
>      disabled pci 0000:01:00.0: PME# supported from D0 D3hot D3cold pci
>      0000:01:00.0: PME# disabled pci 0000:01:00.1: PME# supported from D0
>      D3hot D3cold pci 0000:01:00.1: PME# disabled pci 0000:0c:00.0: disabling
>      ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'
>      pci 0000:00:1e.0: transparent bridge ACPI: PCI Root Bridge [PCI1]
>      (0000:fe) ACPI: PCI Root Bridge [PCI2] (0000:ff) ACPI: PCI Interrupt
>      Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 14 15) ACPI: PCI Interrupt Link
>      [LNKB] (IRQs 3 4 5 6 7 9 *10 11 12 14 15) ACPI: PCI Interrupt Link
>      [LNKC] (IRQs 3 4 5 6 7 *9 10 11 12 14 15) ACPI: PCI Interrupt Link
>      [LNKD] (IRQs 3 4 *5 6 7 9 10 11 12 14 15) ACPI: PCI Interrupt Link
>      [LNKE] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled. ACPI: PCI
>      Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 *11 12 14 15) ACPI: PCI
>      Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
>      ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
>      xenbus_probe_backend_init bus registered ok xenbus_probe_frontend_init
>      bus registered ok xen_balloon: Initialising balloon driver with page
>      order 0. vgaarb: device added:
>      PCI:0000:0c:00.0,decodes=io+mem,owns=io+mem,locks=none vgaarb: loaded
>      SCSI subsystem initialized usbcore: registered new interface driver
>      usbfs usbcore: registered new interface driver hub usbcore: registered
>      new device driver usb PCI: Using ACPI for IRQ routing NetLabel:
>      Initializing NetLabel:  domain hash size = 128 NetLabel:  protocols =
>      UNLABELED CIPSOv4 NetLabel:  unlabeled traffic allowed by default
>      Switching to clocksource xen kstop/0 used greatest stack depth: 6568
>      bytes left kstop/1 used greatest stack depth: 6536 bytes left pnp: PnP
>      ACPI init ACPI: bus type pnp registered xen_allocate_pirq: returning irq
>      8 for gsi 8 Already setup the GSI :8 xen_allocate_pirq: returning irq 13
>      for gsi 13 Already setup the GSI :13 pnp: PnP ACPI: found 13 devices
>      ACPI: ACPI bus type pnp unregistered system 00:07: ioport range
>      0x500-0x53f has been reserved system 00:07: ioport range 0x400-0x47f has
>      been reserved system 00:07: ioport range 0x800-0x81f has been reserved
>      system 00:07: ioport range 0x2f8-0x2ff has been reserved system 00:07:
>      iomem range 0xfed1c000-0xfed8bffe could not be reserved system 00:07:
>      iomem range 0xff000000-0xffffffff could not be reserved system 00:07:
>      iomem range 0xfee00000-0xfeefffff has been reserved system 00:07: iomem
>      range 0xfe900000-0xfe90001f has been reserved system 00:07: iomem range
>      0xfea00000-0xfea0001f has been reserved system 00:07: iomem range
>      0xfed1b000-0xfed1bfff has been reserved pci 0000:0c:00.0: BAR 6: no
>      parent found for of device [0xffff0000-0xffffffff] pci 0000:00:01.0: PCI
>      bridge, secondary bus 0000:01 pci 0000:00:01.0:   IO window:
>      0x1000-0x1fff pci 0000:00:01.0:   MEM window: 0xb1900000-0xb19fffff pci
>      0000:00:01.0:   PREFETCH window: disabled pci 0000:00:02.0: PCI bridge,
>      secondary bus 0000:02 pci 0000:00:02.0:   IO window: disabled pci
>      0000:00:02.0:   MEM window: disabled pci 0000:00:02.0:   PREFETCH
>      window: disabled pci 0000:00:03.0: PCI bridge, secondary bus 0000:03 pci
>      0000:00:03.0:   IO window: disabled pci 0000:00:03.0:   MEM window:
>      disabled pci 0000:00:03.0:   PREFETCH window: disabled pci 0000:00:04.0:
>      PCI bridge, secondary bus 0000:04 pci 0000:00:04.0:   IO window:
>      disabled pci 0000:00:04.0:   MEM window: disabled pci 0000:00:04.0:
>      PREFETCH window: disabled pci 0000:00:05.0: PCI bridge, secondary bus
>      0000:05 pci 0000:00:05.0:   IO window: disabled pci 0000:00:05.0:   MEM
>      window: disabled pci 0000:00:05.0:   PREFETCH window: disabled pci
>      0000:00:06.0: PCI bridge, secondary bus 0000:06 pci 0000:00:06.0:   IO
>      window: disabled pci 0000:00:06.0:   MEM window: disabled pci
>      0000:00:06.0:   PREFETCH window: disabled pci 0000:00:07.0: PCI bridge,
>      secondary bus 0000:07 pci 0000:00:07.0:   IO window: disabled pci
>      0000:00:07.0:   MEM window: disabled pci 0000:00:07.0:   PREFETCH
>      window: disabled pci 0000:00:08.0: PCI bridge, secondary bus 0000:08 pci
>      0000:00:08.0:   IO window: disabled pci 0000:00:08.0:   MEM window:
>      disabled pci 0000:00:08.0:   PREFETCH window: disabled pci 0000:00:09.0:
>      PCI bridge, secondary bus 0000:09 pci 0000:00:09.0:   IO window:
>      0x3000-0x3fff pci 0000:00:09.0:   MEM window: 0xb1b00000-0xb1cfffff pci
>      0000:00:09.0:   PREFETCH window: 0x000000b1d00000-0x000000b1efffff pci
>      0000:00:0a.0: PCI bridge, secondary bus 0000:0a pci 0000:00:0a.0:   IO
>      window: disabled pci 0000:00:0a.0:   MEM window: disabled pci
>      0000:00:0a.0:   PREFETCH window: disabled pci 0000:00:1c.0: PCI bridge,
>      secondary bus 0000:0b pci 0000:00:1c.0:   IO window: disabled pci
>      0000:00:1c.0:   MEM window: disabled pci 0000:00:1c.0:   PREFETCH
>      window: disabled pci 0000:00:1c.4: PCI bridge, secondary bus 0000:0c pci
>      0000:00:1c.4:   IO window: disabled pci 0000:00:1c.4:   MEM window:
>      0xb1000000-0xb18fffff pci 0000:00:1c.4:   PREFETCH window:
>      0x000000b0000000-0x000000b0ffffff pci 0000:00:1c.5: PCI bridge,
>      secondary bus 0000:0d pci 0000:00:1c.5:   IO window: disabled pci
>      0000:00:1c.5:   MEM window: disabled pci 0000:00:1c.5:   PREFETCH
>      window: disabled pci 0000:00:1e.0: PCI bridge, secondary bus 0000:0e pci
>      0000:00:1e.0:   IO window: disabled pci 0000:00:1e.0:   MEM window:
>      disabled pci 0000:00:1e.0:   PREFETCH window: disabled pci 0000:00:01.0:
>      PCI INT A -> GSI 28 (level, low) -> IRQ 28 pci 0000:00:02.0: PCI INT A
>      -> GSI 29 (level, low) -> IRQ 29 pci 0000:00:03.0: PCI INT A -> GSI 24
>      (level, low) -> IRQ 24 pci 0000:00:04.0: PCI INT A -> GSI 25 (level,
>      low) -> IRQ 25 pci 0000:00:05.0: PCI INT A -> GSI 26 (level, low) -> IRQ
>      26 pci 0000:00:06.0: PCI INT A -> GSI 27 (level, low) -> IRQ 27 pci
>      0000:00:07.0: PCI INT A -> GSI 30 (level, low) -> IRQ 30 pci
>      0000:00:08.0: PCI INT A -> GSI 31 (level, low) -> IRQ 31 pci
>      0000:00:09.0: PCI INT A -> GSI 32 (level, low) -> IRQ 32 pci
>      0000:00:0a.0: PCI INT A -> GSI 33 (level, low) -> IRQ 33 pci
>      0000:00:1c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
>      xen_allocate_pirq: returning irq 16 for gsi 16 Already setup the GSI :16
>      pci 0000:00:1c.4: PCI INT A -> GSI 16 (level, low) -> IRQ 16 pci
>      0000:00:1c.5: PCI INT B -> GSI 17 (level, low) -> IRQ 17 NET: Registered
>      protocol family 2 IP route cache hash table entries: 65536 (order: 7,
>      524288 bytes) TCP established hash table entries: 262144 (order: 10,
>      4194304 bytes) TCP bind hash table entries: 65536 (order: 10, 4718592
>      bytes) TCP: Hash tables configured (established 262144 bind 65536) TCP
>      reno registered NET: Registered protocol family 1 pci 0000:01:00.0:
>      Disabling L0s pci 0000:01:00.1: Disabling L0s Trying to unpack rootfs
>      image as initramfs... Freeing initrd memory: 6474k freed DMA-API:
>      preallocated 32768 debug entries DMA-API: debugging enabled by kernel
>      config PCI-DMA: Using software bounce buffering for IO (SWIOTLB) DMA:
>      Placing 64MB software IO TLB between ffff880007525000 - ffff88000b525000
>      DMA: software IO TLB at phys 0x7525000 - 0xb525000 audit: initializing
>      netlink socket (disabled) type=2000 audit(1268750702.035:1): initialized
>      HugeTLB registered 2 MB page size, pre-allocated 0 pages VFS: Disk
>      quotas dquot_6.5.2 Dquot-cache hash table entries: 512 (order 0, 4096
>      bytes) msgmni has been set to 2970 cryptomgr_test used greatest stack
>      depth: 5864 bytes left cryptomgr_test used greatest stack depth: 5816
>      bytes left alg: No test for stdrng (krng) Block layer SCSI generic (bsg)
>      driver version 0.4 loaded (major 252) 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 pciehp 0000:00:09.0:pcie04: HPC vendor_id 8086 device_id
>      3410 ss_vid 0 ss_did 0 pciehp: PCI Express Hot Plug Controller Driver
>      version: 0.4 acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      acpiphp_glue: Slot 2 already registered by another hotplug driver
>      pci-stub: invalid id string "" input: Sleep Button as
>      /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0 ACPI: Sleep
>      Button [SLPB] input: Power Button as
>      /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1 ACPI: Power Button [PWRF]
>      registering netback hpet_acpi_add: no address or irqs in _CRS
>      Non-volatile memory driver v1.3 Linux agpgart interface v0.103 Serial:
>      8250/16550 driver, 4 ports, IRQ sharing enabled serial8250: ttyS1 at I/O
>      0x2f8 (irq = 3) is a 16550A brd: module loaded loop: module loaded
>      input: Macintosh mouse button emulation as /devices/virtual/input/input2
>      ahci 0000:00:1f.2: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ahci
>      0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode
>      ahci 0000:00:1f.2: flags: 64bit ncq sntf pm led clo pio slum part ccc
>      ems  scsi0 : ahci scsi1 : ahci scsi2 : ahci scsi3 : ahci scsi4 : ahci
>      scsi5 : ahci ata1: SATA max UDMA/133 irq_stat 0x00400040, connection
>      status changed irq 2996 ata2: SATA max UDMA/133 abar m2048@0xb1a00000
>      port 0xb1a00180 irq 2996 ata3: SATA max UDMA/133 abar m2048@0xb1a00000
>      port 0xb1a00200 irq 2996 ata4: SATA max UDMA/133 abar m2048@0xb1a00000
>      port 0xb1a00280 irq 2996 ata5: SATA max UDMA/133 abar m2048@0xb1a00000
>      port 0xb1a00300 irq 2996 ata6: SATA max UDMA/133 abar m2048@0xb1a00000
>      port 0xb1a00380 irq 2996 Fixed MDIO Bus: probed ehci_hcd: USB 2.0
>      'Enhanced' Host Controller (EHCI) Driver ehci_hcd 0000:00:1a.7: PCI INT
>      C -> GSI 18 (level, low) -> IRQ 18 ehci_hcd 0000:00:1a.7: EHCI Host
>      Controller ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus
>      number 1 ehci_hcd 0000:00:1a.7: debug port 1 ehci_hcd 0000:00:1a.7: irq
>      18, io mem 0xb1a02000 ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00
>      usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 usb usb1:
>      New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1:
>      Product: EHCI Host Controller usb usb1: Manufacturer: Linux 2.6.32.9
>      ehci_hcd usb usb1: SerialNumber: 0000:00:1a.7 usb usb1: configuration #1
>      chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 6 ports
>      detected ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ
>      23 ehci_hcd 0000:00:1d.7: EHCI Host Controller ehci_hcd 0000:00:1d.7:
>      new USB bus registered, assigned bus number 2 ehci_hcd 0000:00:1d.7:
>      debug port 1 ehci_hcd 0000:00:1d.7: irq 23, io mem 0xb1a01000 ehci_hcd
>      0000:00:1d.7: USB 2.0 started, EHCI 1.00 usb usb2: New USB device found,
>      idVendor=1d6b, idProduct=0002 usb usb2: New USB device strings: Mfr=3,
>      Product=2, SerialNumber=1 usb usb2: Product: EHCI Host Controller usb
>      usb2: Manufacturer: Linux 2.6.32.9 ehci_hcd usb usb2: SerialNumber:
>      0000:00:1d.7 usb usb2: configuration #1 chosen from 1 choice hub
>      2-0:1.0: USB hub found hub 2-0:1.0: 6 ports detected ohci_hcd: USB 1.1
>      'Open' Host Controller (OHCI) Driver uhci_hcd: USB Universal Host
>      Controller Interface driver xen_allocate_pirq: returning irq 16 for gsi
>      16 Already setup the GSI :16 uhci_hcd 0000:00:1a.0: PCI INT A -> GSI 16
>      (level, low) -> IRQ 16 uhci_hcd 0000:00:1a.0: UHCI Host Controller
>      uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 3
>      uhci_hcd 0000:00:1a.0: irq 16, io base 0x000020e0 usb usb3: New USB
>      device found, idVendor=1d6b, idProduct=0001 usb usb3: New USB device
>      strings: Mfr=3, Product=2, SerialNumber=1 usb usb3: Product: UHCI Host
>      Controller usb usb3: Manufacturer: Linux 2.6.32.9 uhci_hcd usb usb3:
>      SerialNumber: 0000:00:1a.0 usb usb3: configuration #1 chosen from 1
>      choice hub 3-0:1.0: USB hub found hub 3-0:1.0: 2 ports detected uhci_hcd
>      0000:00:1a.1: PCI INT B -> GSI 21 (level, low) -> IRQ 21 uhci_hcd
>      0000:00:1a.1: UHCI Host Controller uhci_hcd 0000:00:1a.1: new USB bus
>      registered, assigned bus number 4 uhci_hcd 0000:00:1a.1: irq 21, io base
>      0x000020c0 usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
>      usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb
>      usb4: Product: UHCI Host Controller usb usb4: Manufacturer: Linux
>      2.6.32.9 uhci_hcd usb usb4: SerialNumber: 0000:00:1a.1 usb usb4:
>      configuration #1 chosen from 1 choice hub 4-0:1.0: USB hub found hub
>      4-0:1.0: 2 ports detected xen_allocate_pirq: returning irq 19 for gsi 19
>      Already setup the GSI :19 uhci_hcd 0000:00:1a.2: PCI INT D -> GSI 19
>      (level, low) -> IRQ 19 uhci_hcd 0000:00:1a.2: UHCI Host Controller
>      uhci_hcd 0000:00:1a.2: new USB bus registered, assigned bus number 5
>      uhci_hcd 0000:00:1a.2: irq 19, io base 0x000020a0 usb usb5: New USB
>      device found, idVendor=1d6b, idProduct=0001 usb usb5: New USB device
>      strings: Mfr=3, Product=2, SerialNumber=1 usb usb5: Product: UHCI Host
>      Controller usb usb5: Manufacturer: Linux 2.6.32.9 uhci_hcd usb usb5:
>      SerialNumber: 0000:00:1a.2 usb usb5: configuration #1 chosen from 1
>      choice hub 5-0:1.0: USB hub found hub 5-0:1.0: 2 ports detected
>      xen_allocate_pirq: returning irq 23 for gsi 23 Already setup the GSI :23
>      uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
>      uhci_hcd 0000:00:1d.0: UHCI Host Controller uhci_hcd 0000:00:1d.0: new
>      USB bus registered, assigned bus number 6 uhci_hcd 0000:00:1d.0: irq 23,
>      io base 0x00002080 usb usb6: New USB device found, idVendor=1d6b,
>      idProduct=0001 usb usb6: New USB device strings: Mfr=3, Product=2,
>      SerialNumber=1 usb usb6: Product: UHCI Host Controller usb usb6:
>      Manufacturer: Linux 2.6.32.9 uhci_hcd usb usb6: SerialNumber:
>      0000:00:1d.0 usb usb6: configuration #1 chosen from 1 choice hub
>      6-0:1.0: USB hub found hub 6-0:1.0: 2 ports detected xen_allocate_pirq:
>      returning irq 19 for gsi 19 Already setup the GSI :19 uhci_hcd
>      0000:00:1d.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19 uhci_hcd
>      0000:00:1d.1: UHCI Host Controller uhci_hcd 0000:00:1d.1: new USB bus
>      registered, assigned bus number 7 uhci_hcd 0000:00:1d.1: irq 19, io base
>      0x00002060 usb usb7: New USB device found, idVendor=1d6b, idProduct=0001
>      usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb
>      usb7: Product: UHCI Host Controller usb usb7: Manufacturer: Linux
>      2.6.32.9 uhci_hcd usb usb7: SerialNumber: 0000:00:1d.1 usb usb7:
>      configuration #1 chosen from 1 choice hub 7-0:1.0: USB hub found hub
>      7-0:1.0: 2 ports detected xen_allocate_pirq: returning irq 18 for gsi 18
>      Already setup the GSI :18 uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18
>      (level, low) -> IRQ 18 uhci_hcd 0000:00:1d.2: UHCI Host Controller
>      uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 8
>      uhci_hcd 0000:00:1d.2: irq 18, io base 0x00002040 usb usb8: New USB
>      device found, idVendor=1d6b, idProduct=0001 usb usb8: New USB device
>      strings: Mfr=3, Product=2, SerialNumber=1 usb usb8: Product: UHCI Host
>      Controller usb usb8: Manufacturer: Linux 2.6.32.9 uhci_hcd usb usb8:
>      SerialNumber: 0000:00:1d.2 usb usb8: configuration #1 chosen from 1
>      choice hub 8-0:1.0: USB hub found hub 8-0:1.0: 2 ports detected PNP: No
>      PS/2 controller found. Probing ports directly. i8042.c: No controller
>      found. mice: PS/2 mouse device common for all mice rtc_cmos 00:03: RTC
>      can wake from S4 rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
>      rtc0: alarms up to one month, y3k, 114 bytes nvram device-mapper:
>      uevent: version 1.0.3 device-mapper: ioctl: 4.15.0-ioctl (2009-04-01)
>      initialised: [16]dm-devel@xxxxxxxxxx cpuidle: using governor ladder
>      cpuidle: using governor menu usbcore: registered new interface driver
>      hiddev usbcore: registered new interface driver usbhid usbhid: v2.6:USB
>      HID core driver nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
>      CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
>      nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option
>      or sysctl net.netfilter.nf_conntrack_acct=1 to enable it. ip_tables: (C)
>      2000-2006 Netfilter Core Team TCP cubic registered Initializing XFRM
>      netlink socket NET: Registered protocol family 17 registered taskstats
>      version 1 No TPM chip found, activating TPM-bypass!   Magic number:
>      2:902:788 pci 0000:00:16.6: hash matches rtc_cmos 00:03: setting system
>      clock to 2010-03-16 14:45:05 UTC (1268750705) Initalizing network drop
>      monitor service ata2: SATA link down (SStatus 0 SControl 300) ata4: SATA
>      link down (SStatus 0 SControl 300) ata6: SATA link down (SStatus 0
>      SControl 300) ata5: SATA link down (SStatus 0 SControl 300) ata3: SATA
>      link down (SStatus 0 SControl 300) usb 7-1: new low speed USB device
>      using uhci_hcd and address 2
>       ====================================================== [ INFO:
>      SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] 2.6.32.9 #1
>      ------------------------------------------------------ khubd/100
>      [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:  (&retval->lock){......},
>      at: [<ffffffff8111178c>] dma_pool_alloc+0x36/0x2a8  and this task is
>      already holding:  (&uhci->lock){..-...}, at: [<ffffffff8137aedd>]
>      uhci_urb_enqueue+0x46/0x7e3 which would create a new lock dependency:
>       (&uhci->lock){..-...} -> (&retval->lock){......}  but this new
>      dependency connects a SOFTIRQ-irq-safe lock:  (&uhci->lock){..-...} ...
>      which became SOFTIRQ-irq-safe at:   [<ffffffff8108ea6d>]
>      __lock_acquire+0x2d2/0xc07   [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2
>        [<ffffffff81485526>] _spin_lock_irqsave+0x4f/0x86
>      [<ffffffff8137b6ac>] uhci_hub_status_data+0x32/0x17c
>      [<ffffffff8135a361>] usb_hcd_poll_rh_status+0x50/0x15a
>      [<ffffffff8135a479>] rh_timer_func+0xe/0x10   [<ffffffff810693bd>]
>      run_timer_softirq+0x1a6/0x257   [<ffffffff810627e4>]
>      __do_softirq+0xe6/0x1bc   [<ffffffff81013fac>] call_softirq+0x1c/0x30
>      [<ffffffff81015794>] do_softirq+0x4b/0xa7   [<ffffffff81062229>]
>      irq_exit+0x4a/0x89   [<ffffffff812bf9d9>]
>      xen_evtchn_do_upcall+0x156/0x172   [<ffffffff81013ffe>]
>      xen_do_hypervisor_callback+0x1e/0x30  to a SOFTIRQ-irq-unsafe lock:
>       (purge_lock){+.+...} ... which became SOFTIRQ-irq-unsafe at: ...
>       [<ffffffff8108eadc>] __lock_acquire+0x341/0xc07   [<ffffffff8108f46f>]
>      lock_acquire+0xcd/0xf2   [<ffffffff814853bc>] _spin_lock+0x36/0x6b
>      [<ffffffff8110aa20>] __purge_vmap_area_lazy+0x54/0x18a
>      [<ffffffff8110c82f>] vm_unmap_aliases+0x167/0x176   [<ffffffff8100e58c>]
>      xen_alloc_ptpage+0x51/0x82   [<ffffffff8100e5d0>]
>      xen_alloc_pud+0x13/0x15   [<ffffffff810fe3cf>] __pud_alloc+0x79/0xb3
>      [<ffffffff8110bf76>] vmap_page_range_noflush+0x9a/0x264
>      [<ffffffff8110c161>] vmap_page_range+0xe/0x10   [<ffffffff8110c197>]
>      map_vm_area+0x34/0x47   [<ffffffff8110c2cf>]
>      __vmalloc_area_node+0x125/0x14d   [<ffffffff8110c379>]
>      __vmalloc_node+0x82/0x91   [<ffffffff8110c4e9>] __vmalloc+0x20/0x22
>      [<ffffffff819dfef1>] alloc_large_system_hash+0x150/0x1fe
>      [<ffffffff819e28c5>] vfs_caches_init+0xa9/0x11d   [<ffffffff819c1d99>]
>      start_kernel+0x3de/0x426   [<ffffffff819c12c3>]
>      x86_64_start_reservations+0xae/0xb2   [<ffffffff819c4d5d>]
>      xen_start_kernel+0x4b9/0x4c0  other info that might help us debug this:
>       2 locks held by khubd/100:  #0:  (usb_address0_mutex){+.+...}, at:
>      [<ffffffff81354f5f>] hub_port_init+0x81/0x7e4  #1:
>       (&uhci->lock){..-...}, at: [<ffffffff8137aedd>]
>      uhci_urb_enqueue+0x46/0x7e3  the dependencies between SOFTIRQ-irq-safe
>      lock and the holding lock: -> (&uhci->lock){..-...} ops: 0 {
>       IN-SOFTIRQ-W at:                         [<ffffffff8108ea6d>]
>      __lock_acquire+0x2d2/0xc07                         [<ffffffff8108f46f>]
>      lock_acquire+0xcd/0xf2                         [<ffffffff81485526>]
>      _spin_lock_irqsave+0x4f/0x86
>      [<ffffffff8137b6ac>] uhci_hub_status_data+0x32/0x17c
>          [<ffffffff8135a361>] usb_hcd_poll_rh_status+0x50/0x15a
>                [<ffffffff8135a479>] rh_timer_func+0xe/0x10
>            [<ffffffff810693bd>] run_timer_softirq+0x1a6/0x257
>              [<ffffffff810627e4>] __do_softirq+0xe6/0x1bc
>          [<ffffffff81013fac>] call_softirq+0x1c/0x30
>      [<ffffffff81015794>] do_softirq+0x4b/0xa7
>      [<ffffffff81062229>] irq_exit+0x4a/0x89
>      [<ffffffff812bf9d9>] xen_evtchn_do_upcall+0x156/0x172
>            [<ffffffff81013ffe>] xen_do_hypervisor_callback+0x1e/0x30
>       INITIAL USE at:                        [<ffffffff8108eb29>]
>      __lock_acquire+0x38e/0xc07                        [<ffffffff8108f46f>]
>      lock_acquire+0xcd/0xf2                        [<ffffffff81485526>]
>      _spin_lock_irqsave+0x4f/0x86                        [<ffffffff8137c3d7>]
>      uhci_hub_control+0x74/0x401                        [<ffffffff8135bdac>]
>      usb_hcd_submit_urb+0x7a6/0xa1e
>       [<ffffffff8135c6b2>] usb_submit_urb+0x297/0x2f1
>       [<ffffffff8135d51f>] usb_start_wait_urb+0x54/0x1b1
>         [<ffffffff8135d8a1>] usb_control_msg+0xee/0x113
>       [<ffffffff81358922>] hub_probe+0x37c/0xfaa
>       [<ffffffff81360a35>] usb_probe_interface+0x15a/0x1f7
>           [<ffffffff81307635>] driver_probe_device+0xf8/0x218
>             [<ffffffff813077fa>] __device_attach+0x28/0x31
>           [<ffffffff813066e7>] bus_for_each_drv+0x52/0x85
>         [<ffffffff81307891>] device_attach+0x65/0x7c
>       [<ffffffff8130667e>] bus_probe_device+0x27/0x3e
>       [<ffffffff813045b3>] device_add+0x3ab/0x57d
>       [<ffffffff8135e3ca>] usb_set_configuration+0x5b9/0x677
>             [<ffffffff81367b85>] generic_probe+0x67/0xae
>         [<ffffffff813607b1>] usb_probe_device+0x7f/0x87
>       [<ffffffff81307635>] driver_probe_device+0xf8/0x218
>         [<ffffffff813077fa>] __device_attach+0x28/0x31
>       [<ffffffff813066e7>] bus_for_each_drv+0x52/0x85
>       [<ffffffff81307891>] device_attach+0x65/0x7c
>       [<ffffffff8130667e>] bus_probe_device+0x27/0x3e
>       [<ffffffff813045b3>] device_add+0x3ab/0x57d
>       [<ffffffff8135616e>] usb_new_device+0x154/0x201
>       [<ffffffff8135b42e>] usb_add_hcd+0x4c5/0x69d
>       [<ffffffff8136907b>] usb_hcd_pci_probe+0x270/0x3b1
>         [<ffffffff8125a8ad>] local_pci_probe+0x17/0x1b
>       [<ffffffff8125b4c4>] pci_device_probe+0xcb/0xf7
>       [<ffffffff81307635>] driver_probe_device+0xf8/0x218
>         [<ffffffff813077ae>] __driver_attach+0x59/0x7d
>       [<ffffffff813069e1>] bus_for_each_dev+0x54/0x83
>       [<ffffffff813073fd>] driver_attach+0x21/0x23
>       [<ffffffff81306487>] bus_add_driver+0xe1/0x26b
>       [<ffffffff81307ad5>] driver_register+0xa3/0x11a
>       [<ffffffff8125b71b>] __pci_register_driver+0x65/0xc2
>           [<ffffffff819f403b>] uhci_hcd_init+0x88/0xc1
>       [<ffffffff8100a07e>] do_one_initcall+0x73/0x18b
>       [<ffffffff819c1961>] kernel_init+0x172/0x1cc
>       [<ffffffff81013eaa>] child_rip+0xa/0x20  }  ... key      at:
>      [<ffffffff8268de38>] __key.33456+0x0/0x8  ... acquired at:
>       [<ffffffff8108cdc5>] check_irq_usage+0x61/0xc5    [<ffffffff8108f128>]
>      __lock_acquire+0x98d/0xc07    [<ffffffff8108f46f>]
>      lock_acquire+0xcd/0xf2    [<ffffffff81485526>]
>      _spin_lock_irqsave+0x4f/0x86    [<ffffffff8111178c>]
>      dma_pool_alloc+0x36/0x2a8    [<ffffffff8137aa7b>]
>      uhci_alloc_qh+0x33/0x146    [<ffffffff8137af66>]
>      uhci_urb_enqueue+0xcf/0x7e3    [<ffffffff8135be92>]
>      usb_hcd_submit_urb+0x88c/0xa1e    [<ffffffff8135c6b2>]
>      usb_submit_urb+0x297/0x2f1    [<ffffffff8135d51f>]
>      usb_start_wait_urb+0x54/0x1b1    [<ffffffff8135d8a1>]
>      usb_control_msg+0xee/0x113    [<ffffffff813551fb>]
>      hub_port_init+0x31d/0x7e4    [<ffffffff81356d68>]
>      hub_events+0x91e/0x11a2    [<ffffffff81358432>] hub_thread+0x25/0x199
>       [<ffffffff8107b8fd>] kthread+0x6e/0x76    [<ffffffff81013eaa>]
>      child_rip+0xa/0x20   the dependencies between the lock to be acquired
>      and SOFTIRQ-irq-unsafe lock:  -> (purge_lock){+.+...} ops: 0 {
>      HARDIRQ-ON-W at:                           [<ffffffff8108eaba>]
>      __lock_acquire+0x31f/0xc07
>      [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2
>      [<ffffffff814853bc>] _spin_lock+0x36/0x6b
>      [<ffffffff8110aa20>] __purge_vmap_area_lazy+0x54/0x18a
>              [<ffffffff8110c82f>] vm_unmap_aliases+0x167/0x176
>                  [<ffffffff8100e58c>] xen_alloc_ptpage+0x51/0x82
>                    [<ffffffff8100e5d0>] xen_alloc_pud+0x13/0x15
>                  [<ffffffff810fe3cf>] __pud_alloc+0x79/0xb3
>              [<ffffffff8110bf76>] vmap_page_range_noflush+0x9a/0x264
>                        [<ffffffff8110c161>] vmap_page_range+0xe/0x10
>                        [<ffffffff8110c197>] map_vm_area+0x34/0x47
>                    [<ffffffff8110c2cf>] __vmalloc_area_node+0x125/0x14d
>                          [<ffffffff8110c379>] __vmalloc_node+0x82/0x91
>                          [<ffffffff8110c4e9>] __vmalloc+0x20/0x22
>                    [<ffffffff819dfef1>] alloc_large_system_hash+0x150/0x1fe
>                              [<ffffffff819e28c5>] vfs_caches_init+0xa9/0x11d
>                                [<ffffffff819c1d99>] start_kernel+0x3de/0x426
>                                [<ffffffff819c12c3>]
>      x86_64_start_reservations+0xae/0xb2
>      [<ffffffff819c4d5d>] xen_start_kernel+0x4b9/0x4c0     SOFTIRQ-ON-W at:
>                              [<ffffffff8108eadc>] __lock_acquire+0x341/0xc07
>                                [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2
>                              [<ffffffff814853bc>] _spin_lock+0x36/0x6b
>                          [<ffffffff8110aa20>]
>      __purge_vmap_area_lazy+0x54/0x18a
>      [<ffffffff8110c82f>] vm_unmap_aliases+0x167/0x176
>          [<ffffffff8100e58c>] xen_alloc_ptpage+0x51/0x82
>            [<ffffffff8100e5d0>] xen_alloc_pud+0x13/0x15
>          [<ffffffff810fe3cf>] __pud_alloc+0x79/0xb3
>      [<ffffffff8110bf76>] vmap_page_range_noflush+0x9a/0x264
>                [<ffffffff8110c161>] vmap_page_range+0xe/0x10
>                [<ffffffff8110c197>] map_vm_area+0x34/0x47
>            [<ffffffff8110c2cf>] __vmalloc_area_node+0x125/0x14d
>                  [<ffffffff8110c379>] __vmalloc_node+0x82/0x91
>                  [<ffffffff8110c4e9>] __vmalloc+0x20/0x22
>            [<ffffffff819dfef1>] alloc_large_system_hash+0x150/0x1fe
>                      [<ffffffff819e28c5>] vfs_caches_init+0xa9/0x11d
>                        [<ffffffff819c1d99>] start_kernel+0x3de/0x426
>                        [<ffffffff819c12c3>]
>      x86_64_start_reservations+0xae/0xb2
>      [<ffffffff819c4d5d>] xen_start_kernel+0x4b9/0x4c0     INITIAL USE at:
>                             [<ffffffff8108eb29>] __lock_acquire+0x38e/0xc07
>                             [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2
>                         [<ffffffff814853bc>] _spin_lock+0x36/0x6b
>                   [<ffffffff8110aa20>] __purge_vmap_area_lazy+0x54/0x18a
>                           [<ffffffff8110c82f>] vm_unmap_aliases+0x167/0x176
>                             [<ffffffff8100e58c>] xen_alloc_ptpage+0x51/0x82
>                             [<ffffffff8100e5d0>] xen_alloc_pud+0x13/0x15
>                           [<ffffffff810fe3cf>] __pud_alloc+0x79/0xb3
>                       [<ffffffff8110bf76>] vmap_page_range_noflush+0x9a/0x264
>                               [<ffffffff8110c161>] vmap_page_range+0xe/0x10
>                             [<ffffffff8110c197>] map_vm_area+0x34/0x47
>                         [<ffffffff8110c2cf>] __vmalloc_area_node+0x125/0x14d
>                               [<ffffffff8110c379>] __vmalloc_node+0x82/0x91
>                             [<ffffffff8110c4e9>] __vmalloc+0x20/0x22
>                       [<ffffffff819dfef1>]
>      alloc_large_system_hash+0x150/0x1fe
>       [<ffffffff819e28c5>] vfs_caches_init+0xa9/0x11d
>       [<ffffffff819c1d99>] start_kernel+0x3de/0x426
>       [<ffffffff819c12c3>] x86_64_start_reservations+0xae/0xb2
>                 [<ffffffff819c4d5d>] xen_start_kernel+0x4b9/0x4c0   }   ...
>      key      at: [<ffffffff81741ef8>] purge_lock.27226+0x18/0x40   ...
>      acquired at:    [<ffffffff8108f20c>] __lock_acquire+0xa71/0xc07
>       [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2    [<ffffffff814853bc>]
>      _spin_lock+0x36/0x6b    [<ffffffff8110aa20>]
>      __purge_vmap_area_lazy+0x54/0x18a    [<ffffffff8110c82f>]
>      vm_unmap_aliases+0x167/0x176    [<ffffffff8100d7ca>]
>      xen_create_contiguous_region+0x51/0x106    [<ffffffff81250d84>]
>      xen_swiotlb_alloc_coherent+0x62/0xa6    [<ffffffff8111188c>]
>      dma_pool_alloc+0x136/0x2a8    [<ffffffff81370efe>]
>      ehci_qh_alloc+0x44/0x107    [<ffffffff81373f5d>]
>      ehci_pci_setup+0x22a/0x9c1    [<ffffffff8135b18e>]
>      usb_add_hcd+0x225/0x69d    [<ffffffff8136907b>]
>      usb_hcd_pci_probe+0x270/0x3b1    [<ffffffff8125a8ad>]
>      local_pci_probe+0x17/0x1b    [<ffffffff8125b4c4>]
>      pci_device_probe+0xcb/0xf7    [<ffffffff81307635>]
>      driver_probe_device+0xf8/0x218    [<ffffffff813077ae>]
>      __driver_attach+0x59/0x7d    [<ffffffff813069e1>]
>      bus_for_each_dev+0x54/0x83    [<ffffffff813073fd>]
>      driver_attach+0x21/0x23    [<ffffffff81306487>]
>      bus_add_driver+0xe1/0x26b    [<ffffffff81307ad5>]
>      driver_register+0xa3/0x11a    [<ffffffff8125b71b>]
>      __pci_register_driver+0x65/0xc2    [<ffffffff819f3ee0>]
>      ehci_hcd_init+0x7f/0xc0    [<ffffffff8100a07e>]
>      do_one_initcall+0x73/0x18b    [<ffffffff819c1961>]
>      kernel_init+0x172/0x1cc    [<ffffffff81013eaa>] child_rip+0xa/0x20  ->
>      (&retval->lock){......} ops: 0 {    INITIAL USE at:
>         [<ffffffff8108eb29>] __lock_acquire+0x38e/0xc07
>       [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2
>       [<ffffffff81485526>] _spin_lock_irqsave+0x4f/0x86
>       [<ffffffff8111178c>] dma_pool_alloc+0x36/0x2a8
>       [<ffffffff81370efe>] ehci_qh_alloc+0x44/0x107
>       [<ffffffff81373f5d>] ehci_pci_setup+0x22a/0x9c1
>       [<ffffffff8135b18e>] usb_add_hcd+0x225/0x69d
>       [<ffffffff8136907b>] usb_hcd_pci_probe+0x270/0x3b1
>         [<ffffffff8125a8ad>] local_pci_probe+0x17/0x1b
>       [<ffffffff8125b4c4>] pci_device_probe+0xcb/0xf7
>       [<ffffffff81307635>] driver_probe_device+0xf8/0x218
>         [<ffffffff813077ae>] __driver_attach+0x59/0x7d
>       [<ffffffff813069e1>] bus_for_each_dev+0x54/0x83
>       [<ffffffff813073fd>] driver_attach+0x21/0x23
>       [<ffffffff81306487>] bus_add_driver+0xe1/0x26b
>       [<ffffffff81307ad5>] driver_register+0xa3/0x11a
>       [<ffffffff8125b71b>] __pci_register_driver+0x65/0xc2
>           [<ffffffff819f3ee0>] ehci_hcd_init+0x7f/0xc0
>       [<ffffffff8100a07e>] do_one_initcall+0x73/0x18b
>       [<ffffffff819c1961>] kernel_init+0x172/0x1cc
>       [<ffffffff81013eaa>] child_rip+0xa/0x20  }  ... key      at:
>      [<ffffffff824dc3c4>] __key.24188+0x0/0x1c  ... acquired at:
>       [<ffffffff8108cdc5>] check_irq_usage+0x61/0xc5    [<ffffffff8108f128>]
>      __lock_acquire+0x98d/0xc07    [<ffffffff8108f46f>]
>      lock_acquire+0xcd/0xf2    [<ffffffff81485526>]
>      _spin_lock_irqsave+0x4f/0x86    [<ffffffff8111178c>]
>      dma_pool_alloc+0x36/0x2a8    [<ffffffff8137aa7b>]
>      uhci_alloc_qh+0x33/0x146    [<ffffffff8137af66>]
>      uhci_urb_enqueue+0xcf/0x7e3    [<ffffffff8135be92>]
>      usb_hcd_submit_urb+0x88c/0xa1e    [<ffffffff8135c6b2>]
>      usb_submit_urb+0x297/0x2f1    [<ffffffff8135d51f>]
>      usb_start_wait_urb+0x54/0x1b1    [<ffffffff8135d8a1>]
>      usb_control_msg+0xee/0x113    [<ffffffff813551fb>]
>      hub_port_init+0x31d/0x7e4    [<ffffffff81356d68>]
>      hub_events+0x91e/0x11a2    [<ffffffff81358432>] hub_thread+0x25/0x199
>       [<ffffffff8107b8fd>] kthread+0x6e/0x76    [<ffffffff81013eaa>]
>      child_rip+0xa/0x20   stack backtrace: Pid: 100, comm: khubd Not tainted
>      2.6.32.9 #1 Call Trace:  [<ffffffff8108cd50>] check_usage+0x331/0x345
>       [<ffffffff81032d79>] ? pvclock_clocksource_read+0x47/0x80
>       [<ffffffff8108cdc5>] check_irq_usage+0x61/0xc5  [<ffffffff8108f128>]
>      __lock_acquire+0x98d/0xc07  [<ffffffff8111008c>] ?
>      sys_swapoff+0x870/0x9d0  [<ffffffff8108f46f>] lock_acquire+0xcd/0xf2
>       [<ffffffff8111178c>] ? dma_pool_alloc+0x36/0x2a8  [<ffffffff81485526>]
>      _spin_lock_irqsave+0x4f/0x86  [<ffffffff8111178c>] ?
>      dma_pool_alloc+0x36/0x2a8  [<ffffffff8111178c>]
>      dma_pool_alloc+0x36/0x2a8  [<ffffffff8111a986>] ? init_object+0x73/0x7b
>       [<ffffffff8100ed81>] ? xen_force_evtchn_callback+0xd/0xf
>       [<ffffffff8100f452>] ? check_events+0x12/0x20  [<ffffffff8137aa7b>]
>      uhci_alloc_qh+0x33/0x146  [<ffffffff8111dda9>] ?
>      kmem_cache_alloc+0xd9/0x150  [<ffffffff8137af66>]
>      uhci_urb_enqueue+0xcf/0x7e3  [<ffffffff8135a29c>] ?
>      dma_map_single_attrs+0xb4/0xc6  [<ffffffff8135be92>]
>      usb_hcd_submit_urb+0x88c/0xa1e  [<ffffffff8100ed81>] ?
>      xen_force_evtchn_callback+0xd/0xf  [<ffffffff8100ed81>] ?
>      xen_force_evtchn_callback+0xd/0xf  [<ffffffff8100f452>] ?
>      check_events+0x12/0x20  [<ffffffff8108b9ea>] ?
>      lockdep_init_map+0x9f/0x115  [<ffffffff8135c6b2>]
>      usb_submit_urb+0x297/0x2f1  [<ffffffff8107beb6>] ?
>      __init_waitqueue_head+0x3a/0x4c  [<ffffffff8135d51f>]
>      usb_start_wait_urb+0x54/0x1b1  [<ffffffff8100f452>] ?
>      check_events+0x12/0x20  [<ffffffff8135c939>] ? usb_alloc_urb+0x21/0x4b
>       [<ffffffff8135c907>] ? usb_init_urb+0x2a/0x3b  [<ffffffff8135d8a1>]
>      usb_control_msg+0xee/0x113  [<ffffffff8111c5ef>] ?
>      kmem_cache_alloc_notrace+0xe8/0x111  [<ffffffff8135517a>] ?
>      hub_port_init+0x29c/0x7e4  [<ffffffff813551fb>]
>      hub_port_init+0x31d/0x7e4  [<ffffffff81356d68>] hub_events+0x91e/0x11a2
>       [<ffffffff8135840d>] ? hub_thread+0x0/0x199  [<ffffffff81358432>]
>      hub_thread+0x25/0x199  [<ffffffff8107bb4f>] ?
>      autoremove_wake_function+0x0/0x3d  [<ffffffff8107b8fd>]
>      kthread+0x6e/0x76  [<ffffffff81013eaa>] child_rip+0xa/0x20
>       [<ffffffff8104edcf>] ? finish_task_switch+0x0/0xcc
>       [<ffffffff81013810>] ? restore_args+0x0/0x30  [<ffffffff8107b9f2>] ?
>      kthreadd+0xed/0x10f  [<ffffffff81013ea0>] ? child_rip+0x0/0x20 ata1:
>      SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: ATA-8: Hitachi
>      HDT721025SLA380, STBOA3AA, max UDMA/133 ata1.00: 488397168 sectors,
>      multi 0: LBA48 NCQ (depth 31/32), AA ata1.00: configured for UDMA/133
>      scsi 0:0:0:0: Direct-Access     ATA      Hitachi HDT72102 STBO PQ: 0
>      ANSI: 5 sd 0:0:0:0: [sda] 488397168 512-byte logical blocks: (250 GB/232
>      GiB) sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0: [sda]
>      Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd
>      0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
>      support DPO or FUA  sda: sda1 sda2 sd 0:0:0:0: [sda] Attached SCSI disk
>      Freeing unused kernel memory: 3396k freed Write protecting the kernel
>      read-only data: 6988k Red Hat nash version 5.1.19.6 starting Mounting
>      proc filesystem Mounting sysfs filesystem Creating /dev Creating initial
>      device nodes Setting up hotplug. usb 7-1: New USB device found,
>      idVendor=0458, idProduct=0007 usb 7-1: New USB device strings: Mfr=2,
>      Product=1, SerialNumber=0 usb 7-1: Product: Optical Mouse usb 7-1:
>      Manufacturer: KYE usb 7-1: configuration #1 chosen from 1 choice input:
>      KYE Optical Mouse as
>      /devices/pci0000:00/0000:00:1d.1/usb7/7-1/7-1:1.0/input/input3
>      generic-usb 0003:0458:0007.0001: input,hidraw0: USB HID v1.10 Mouse [KYE
>      Optical Mouse] on usb-0000:00:1d.1-1/input0 Creating block device nodes.
>      Loading aacraid.ko module Adaptec aacraid driver 1.1-5[2461]-ms Scanning
>      and configuring dmraid supported devices Scanning logical volumes
>      Reading all physical volumes.  This may take a while... Activating
>      logical volumes   Volume group "VolGroup01" not found Trying to resume
>      from /dev/VolGroup01/LogVol01 Unable to access resume device
>      (/dev/VolGroup01/LogVol01) Creating root device. Mounting root
>      filesystem. mount: could not find filesystem '/dev/root' Setting up
>      other filesystems. Setting up new root fs setuproot: moving /dev failed:
>      No such file or directory no fstab.sys, mounting internal defaults
>      setuproot: error mounting /proc: No such file or directory setuproot:
>      error mounting /sys: No such file or directory Switching to new root and
>      running init. unmounting old /dev unmounting old /proc unmounting old
>      /sys switchroot: mount failed: No such file or directory init used
>      greatest stack depth: 4088 bytes left Kernel panic - not syncing:
>      Attempted to kill init! Pid: 1, comm: init Not tainted 2.6.32.9 #1 Call
>      Trace:  [<ffffffff8105b73f>] panic+0xa5/0x167  [<ffffffff8100ed81>] ?
>      xen_force_evtchn_callback+0xd/0xf  [<ffffffff8105f2ab>] ?
>      do_exit+0x38a/0x701  [<ffffffff8100f43f>] ?
>      xen_restore_fl_direct_end+0x0/0x1  [<ffffffff8108f81b>] ?
>      lock_release+0x179/0x184  [<ffffffff8108ca1d>] ?
>      trace_hardirqs_on+0xd/0xf  [<ffffffff81484fcf>] ?
>      _write_unlock_irq+0x37/0x3c  [<ffffffff8105ef9f>] do_exit+0x7e/0x701
>       [<ffffffff8105f6be>] sys_exit_group+0x0/0x1b  [<ffffffff8105f6d5>]
>      sys_exit_group+0x17/0x1b  [<ffffffff81012d72>]
>      system_call_fastpath+0x16/0x1b
>
> References
>
>    Visible links
>    1. mailto:pasik@xxxxxx
>    2. mailto:pasik@xxxxxx
>    3. http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>    4. http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>    5. mailto:pasik@xxxxxx
>    6. http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>    7. http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>    8. mailto:pasik@xxxxxx
>    9. mailto:pasik@xxxxxx
>   10. http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>   11. http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>   12. mailto:pasik@xxxxxx
>   13. http://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
>   14. http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.32.9-pvops-dom0-xen-stable-x86_64
>   15. mailto:pasik@xxxxxx
>   16. mailto:dm-devel@xxxxxxxxxx



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