[Xen-devel] Is my subscribe work?

[Dongxu Wang <dongxv.vang@xxxxxxxxx>]

On Mon, Mar 28, 2011 at 6:34 PM, <xen-devel-request@xxxxxxxxxxxxxxxxxxx> wrote:

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Today's Topics:

  1. xen kernel headers: circular dependencies (Christoph Egger)
  2. Xen-devel mailing list submissions (Dongxu Wang)
  3. Dom0 pvops (2.6.32.35 xen/next-2.6.32.x) crashes at       boot time
     (balloon_init OOPS #0002) (Andy Georges)


----------------------------------------------------------------------

Message: 1
Date: Mon, 28 Mar 2011 11:56:42 +0200
From: Christoph Egger <Christoph.Egger@xxxxxxx>
Subject: [Xen-devel] xen kernel headers: circular dependencies
To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Message-ID: <4D905B5A.50209@xxxxxxx>
Content-Type: text/plain; charset="ISO-8859-15"; format=flowed


Hi,

I just uncovered a circular header dependency starting from
_PAGE_NX.

_PAGE_NX is defined in asm-x86/x86_{64,32}/page.h and uses cpu_has_nx
cpu_has_nx is defined in asm-x86/cpufeature.h.

So make asm-x86/x86_{64,32}/page.h include <asm/cpufeature.h>

cpufeature.h uses boot_cpu_data which is declared in asm-x86/processor.h

So make cpufeature.h include <asm/processor.h>

processor.h uses NCAPINTS which is defined in cpufeature.h

processor.h already includes cpufeature.h


gcc fails to build with complaining about implicit declaration of
function 'get_cpu_info' then.


Any suggestions on how to fix this?

Christoph


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------------------------------

Message: 2
Date: Mon, 28 Mar 2011 18:10:45 +0800
From: Dongxu Wang <dongxv.vang@xxxxxxxxx>
Subject: [Xen-devel] Xen-devel mailing list submissions
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Message-ID:
       <AANLkTikgCqch36iZFHswRXV1s4tABq9oqOS2jUJPL-zW@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"

 Xen-devel mailing list submissions

--
Regards,
Dongxu
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Message: 3
Date: Mon, 28 Mar 2011 12:32:42 +0200
From: Andy Georges <andy.georges@xxxxxxxxxxxxx>
Subject: [Xen-devel] Dom0 pvops (2.6.32.35 xen/next-2.6.32.x) crashes
       at      boot time (balloon_init OOPS #0002)
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Message-ID: <245DFE19-22FE-4E1E-BEC7-0D33DEBE2938@xxxxxxxxxxxxx>
Content-Type: text/plain; charset=iso-8859-1

Hello,

I have struggled for a while now to get Xen properly booted using a dom0 pvops kernel. I have been following the guidelines at https://help.ubuntu.com/community/Xen. Same guidelines for a corei7 based desktop machine work without any errors.

All help is appreciated. Thx.

-- Andy Georges

Relevant information:

Machine: Dell PowerEdge SC1425

CPU:

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 65
model name      : Dual-Core AMD Opteron(tm) Processor 2212 HE
stepping        : 2
cpu MHz         : 1999.860
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow rep_good extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
bogomips        : 3999.72
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc

(Same for cores 1-3)

OS: Linux Ubuntu 10.04 (but the same error occurs at 10.10).

Xen: 4.0.1 (http://bits.xensource.com/oss-xen/release/4.0.1/xen-4.0.1.tar.gz)

Kernel:
ageorges@dc08:/usr/src/linux-2.6-xen$ git branch
* xen/next-2.6.32
 xen/stable
 xen/stable-2.6.32.x

ageorges@dc08:/usr/src/linux-2.6-xen$ git log -1
commit df3a5560166da5a05de93f2fc36b718cc43c6c3c
Merge: 4306ea8 acad135
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Date:   Fri Mar 25 12:42:56 2011 +0000

   Merge branch 'irq-fairness-2.6.32' of git://xenbits.xen.org/people/ianc/linux-2.6 into xen/next-2.6.32

   * 'irq-fairness-2.6.32' of git://xenbits.xen.org/people/ianc/linux-2.6:
     xen: events: Remove redundant clear of l2i at end of round-robin loop
     xen: events: Make round-robin scan fairer by snapshotting each l2 word
     xen: events: Clean up round-robin evtchn scan.
     xen: events: Make last processed event channel a per-cpu variable.
     xen: events: Process event channels notifications in round-robin order.

xen/stable-2.6.32.x suffers from the same problem afaik.

Kernel config is at http://pastie.org/1725773

This is the grub entry:

menuentry 'Ubuntu, with Linux 2.6.32.35 + Xen 4.0.1' --class ubuntu --class gnu-linux --class gnu --class os --class xen {
       recordfail
       insmod ext2
       set root='(hd0,1)'
       search --no-floppy --fs-uuid --set a18de43a-d9d1-4622-84e3-b25edeecd603
       multiboot (hd0,1)/boot/xen-4.0.1.gz dummy=dummy dom0_mem=2048M com1=115200,8n1 console=com1 loglvl=all sync_console console_to_ring lapic=debug guest_loglvl=all
       module  (hd0,1)/boot/vmlinuz-2.6.32.35 dummy=dummy root=UUID=a18de43a-d9d1-4622-84e3-b25edeecd603 ro console=hvc0
       module  (hd0,1)/boot/initrd.img-2.6.32.35
}


This is the trace I obtained from the boot:

__  __            _  _    ___   _
 \ \/ /___ _ __   | || |  / _ \ / |
 \  // _ \ '_ \  | || |_| | | || |
 /  \  __/ | | | |__   _| |_| || |
 /_/\_\___|_| |_|    |_|(_)___(_)_|

(XEN) Xen version 4.0.1 (root@xxxxxxxxxxxxx) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) Fri Mar 25 16:28:54 CET 2011
(XEN) Latest ChangeSet: unavailable
(XEN) Console output is synchronous.
(XEN) Bootloader: GRUB 1.98-1ubuntu10
(XEN) Command line: dummy=dummy dom0_mem=2048M com1=115200,8n1 console=com1 loglvl=all sync_console console_to_ring lapic=debug guest_loglvl=all
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 2 seconds
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 00000000000a0000 (usable)
(XEN)  0000000000100000 - 00000000dfef8000 (usable)
(XEN)  00000000dfef8000 - 00000000dff07c00 (ACPI data)
(XEN)  00000000dff07c00 - 00000000e0000000 (reserved)
(XEN)  00000000f0000000 - 00000000f8000000 (reserved)
(XEN)  00000000fe000000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000120000000 (usable)
(XEN) ACPI: RSDP 000F2630, 0024 (r2 DELL  )
(XEN) ACPI: XSDT 000F2694, 005C (r1 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: FACP 000F2764, 00F4 (r3 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: DSDT DFEF8000, 3636 (r1 DELL   PE_SC3          1 MSFT  2000001)
(XEN) ACPI: FACS DFF07000, 0040
(XEN) ACPI: APIC 000F2858, 0092 (r1 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: SPCR 000F28EB, 0050 (r1 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: HPET 000F293B, 0038 (r1 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: MCFG 000F2973, 003C (r1 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: SRAT 000FC4A4, 0110 (r1 DELL   PE_SC3          1 DELL        1)
(XEN) ACPI: SSDT DFF07400, 0030 (r1 DELL   PE_SC3          1 DELL        1)
(XEN) System RAM: 4094MB (4192864kB)
(XEN) SRAT: PXM 0 -> APIC 0 -> Node 0
(XEN) SRAT: PXM 0 -> APIC 1 -> Node 0
(XEN) SRAT: PXM 1 -> APIC 2 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 3 -> Node 1
(XEN) SRAT: Node 0 PXM 0 0-a0000
(XEN) SRAT: Node 0 PXM 0 100000-80000000
(XEN) SRAT: Node 1 PXM 1 80000000-e0000000
(XEN) SRAT: Node 1 PXM 1 100000000-120000000
(XEN) NUMA: Allocated memnodemap from 11fdfd000 - 11fdff000
(XEN) NUMA: Using 8 for the hash shift.
(XEN) Domain heap initialised DMA width 29 bits
(XEN) found SMP MP-table at 000fe710
(XEN) DMI 2.4 present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x808
(XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[848,804], pm1x_evt[800,844]
(XEN) ACPI:                  wakeup_vec[dff0700c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 15:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
(XEN) Processor #2 15:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
(XEN) Processor #1 15:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
(XEN) Processor #3 15:1 APIC version 16
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
(XEN) ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 4, version 17, address 0xfec00000, GSI 0-15
(XEN) ACPI: IOAPIC (id[0x05] address[0xfec01000] gsi_base[32])
(XEN) IOAPIC[1]: apic_id 5, version 17, address 0xfec01000, GSI 32-47
(XEN) ACPI: IOAPIC (id[0x06] address[0xfec02000] gsi_base[64])
(XEN) IOAPIC[2]: apic_id 6, version 17, address 0xfec02000, GSI 64-79
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 3 I/O APICs
(XEN) ACPI: HPET id: 0x1166a201 base: 0xfed00000
(XEN) PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 63
(XEN) PCI: MCFG area at f0000000 reserved in E820
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2000.148 MHz processor.
(XEN) Initing memory sharing.
(XEN) CPU0: AMD Flush Filter disabled
(XEN) HVM: ASIDs enabled.
(XEN) HVM: SVM enabled
(XEN) AMD K8 machine check reporting enabled
(XEN) AMD-Vi: IOMMU not found!
(XEN) I/O virtualisation disabled
(XEN) CPU1: AMD Flush Filter disabled
(XEN) AMD: Disabling C1 Clock Ramping Node #0
(XEN) AMD: Disabling C1 Clock Ramping Node #1
(XEN) CPU2: AMD Flush Filter disabled
(XEN) CPU3: AMD Flush Filter disabled
(XEN) Total of 4 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) checking TSC synchronization across 4 CPUs: passed.
(XEN) Platform timer appears to have unexpectedly wrapped 1 times.
(XEN) Platform timer is 14.318MHz HPET
я(XEN) Allocated console ring of 32 KiB.
(XEN) microcode.c:73:d32767 microcode: CPU1 resumed
(XEN) microcode.c:73:d32767 microcode: CPU3 resumed
(XEN) Brought up 4 CPUs
(XEN) microcode.c:73:d32767 microcode: CPU2 resumed
(XEN) HPET: 3 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 -> 0x1ae7000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000060000000->0000000070000000 (458752 pages to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff81ae7000
(XEN)  Init. ramdisk: ffffffff81ae7000->ffffffff8b80ca00
(XEN)  Phys-Mach map: ffffffff8b80d000->ffffffff8bc0d000
(XEN)  Start info:    ffffffff8bc0d000->ffffffff8bc0d4b4
(XEN)  Page tables:   ffffffff8bc0e000->ffffffff8bc71000
(XEN)  Boot stack:    ffffffff8bc71000->ffffffff8bc72000
(XEN)  TOTAL:         ffffffff80000000->ffffffff8c000000
(XEN)  ENTRY ADDRESS: ffffffff81852200
(XEN) Dom0 has maximum 4 VCPUs
(XEN) Scrubbing Free RAM: ....................done.
(XEN) trace.c:89:d32767 calc_tinfo_first_offset: NR_CPUs 128, offset_in_bytes 258, t_info_first_offset 65
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) **********************************************
(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 176kB init memory.
mapping kernel into physical memory
Xen: setup ISA identity maps
about to get started...
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.32.35 (root@dc08) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #1 SMP Fri Mar 25 15:38:11 CET 2011
[    0.000000] Command line: dummy=dummy root=UUID=a18de43a-d9d1-4622-84e3-b25edeecd603 ro console=hvc0
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Centaur CentaurHauls
[    0.000000] released 0 pages of unused memory
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  Xen: 0000000000000000 - 00000000000a0000 (usable)
[    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
[    0.000000]  Xen: 0000000000100000 - 0000000080000000 (usable)
[    0.000000]  Xen: 0000000080000000 - 00000000dfef8000 (unusable)
[    0.000000]  Xen: 00000000dfef8000 - 00000000dff07c00 (ACPI data)
[    0.000000]  Xen: 00000000dff07c00 - 00000000e0000000 (reserved)
[    0.000000]  Xen: 00000000f0000000 - 00000000f8000000 (reserved)
[    0.000000]  Xen: 00000000fe000000 - 0000000100000000 (reserved)
[    0.000000]  Xen: 0000000100000000 - 000000017fef8000 (usable)
[    0.000000] DMI 2.4 present.
[    0.000000] last_pfn = 0x17fef8 max_arch_pfn = 0x400000000
[    0.000000] last_pfn = 0x80000 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 - 00000000000a0000 (usable)
[    0.000000]  modified: 00000000000a0000 - 0000000000100000 (reserved)
[    0.000000]  modified: 0000000000100000 - 0000000080000000 (usable)
[    0.000000]  modified: 0000000080000000 - 00000000dfef8000 (unusable)
[    0.000000]  modified: 00000000dfef8000 - 00000000dff07c00 (ACPI data)
[    0.000000]  modified: 00000000dff07c00 - 00000000e0000000 (reserved)
[    0.000000]  modified: 00000000f0000000 - 00000000f8000000 (reserved)
[    0.000000]  modified: 00000000fe000000 - 0000000100000000 (reserved)
[    0.000000]  modified: 0000000100000000 - 000000017fef8000 (usable)
[    0.000000] init_memory_mapping: 0000000000000000-0000000080000000
[    0.000000] init_memory_mapping: 0000000100000000-000000017fef8000
[    0.000000] RAMDISK: 01ae7000 - 0b80ca00
[    0.000000] ACPI: RSDP 00000000000f2630 00024 (v02 DELL  )
[    0.000000] ACPI: XSDT 00000000000f2694 0005C (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: FACP 00000000000f2764 000F4 (v03 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: DSDT 00000000dfef8000 03636 (v01 DELL   PE_SC3   00000001 MSFT 02000001)
[    0.000000] ACPI: FACS 00000000dff07000 00040
[    0.000000] ACPI: APIC 00000000000f2858 00092 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: SPCR 00000000000f28eb 00050 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: HPET 00000000000f293b 00038 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: MCFG 00000000000f2973 0003C (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: SRAT 00000000000fc4a4 00110 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] ACPI: SSDT 00000000dff07400 00030 (v01 DELL   PE_SC3   00000001 DELL 00000001)
[    0.000000] Scanning NUMA topology in Northbridge 24
[    0.000000] Number of nodes 2
[    0.000000] Node 0 MemBase 0000000000000000 Limit 0000000080000000
[    0.000000] Node 1 MemBase 0000000080000000 Limit 0000000120000000
[    0.000000] Using node hash shift of 31
[    0.000000] found SMP MP-table at [ffff8800000fe710] fe710
[    0.000000] Bootmem setup node 0 0000000000000000-0000000080000000
[    0.000000]   NODE_DATA [0000000000008000 - 000000000000cfff]
[    0.000000]   bootmap [000000000000d000 -  000000000001cfff] pages 10
[    0.000000] (10 early reservations) ==> bootmem [0000000000 - 0080000000]
[    0.000000]   #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 - 0000001000]
[    0.000000]   #1 [000bc0e000 - 000bc71000]   XEN PAGETABLES ==> [000bc0e000 - 000bc71000]
[    0.000000]   #2 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 - 0000008000]
[    0.000000]   #3 [0001000000 - 00019bcdc4]    TEXT DATA BSS ==> [0001000000 - 00019bcdc4]
[    0.000000]   #4 [0001ae7000 - 000b80ca00]          RAMDISK ==> [0001ae7000 - 000b80ca00]
[    0.000000]   #5 [000b80d000 - 000bc0e000]   XEN START INFO ==> [000b80d000 - 000bc0e000]
[    0.000000]   #6 [0100000000 - 017fef8000]        XEN EXTRA
[    0.000000]   #7 [00019bd000 - 00019cb238]              BRK ==> [00019bd000 - 00019cb238]
[    0.000000]   #8 [0000100000 - 000049d000]          PGTABLE ==> [0000100000 - 000049d000]
[    0.000000]   #9 [000bc71000 - 000c073000]          PGTABLE ==> [000bc71000 - 000c073000]
[    0.000000] Bootmem setup node 1 0000000080000000-0000000120000000
[    0.000000]   NODE_DATA [00000000019cc000 - 00000000019d0fff]
[    0.000000]   bootmap [00000000019d1000 -  00000000019e4fff] pages 14
[    0.000000] (10 early reservations) ==> bootmem [0080000000 - 0120000000]
[    0.000000]   #0 [0000000000 - 0000001000]   BIOS data page
[    0.000000]   #1 [000bc0e000 - 000bc71000]   XEN PAGETABLES
[    0.000000]   #2 [0000006000 - 0000008000]       TRAMPOLINE
[    0.000000]   #3 [0001000000 - 00019bcdc4]    TEXT DATA BSS
[    0.000000]   #4 [0001ae7000 - 000b80ca00]          RAMDISK
[    0.000000]   #5 [000b80d000 - 000bc0e000]   XEN START INFO
[    0.000000]   #6 [0100000000 - 017fef8000]        XEN EXTRA ==> [0100000000 - 0120000000]
[    0.000000]   #7 [00019bd000 - 00019cb238]              BRK
[    0.000000]   #8 [0000100000 - 000049d000]          PGTABLE
[    0.000000]   #9 [000bc71000 - 000c073000]          PGTABLE
[    0.000000]     NODE_DATA(1) on node 0
[    0.000000]     bootmap(1) on node 0
[    0.000000] found SMP MP-table at [ffff8800000fe710] fe710
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000000 -> 0x00001000
[    0.000000]   DMA32    0x00001000 -> 0x00100000
[    0.000000]   Normal   0x00100000 -> 0x0017fef8
[    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 -> 0x000000a0
[    0.000000]     0: 0x00000100 -> 0x00080000
[    0.000000]     1: 0x00100000 -> 0x00120000
[    0.000000] Detected use of extended apic ids on hypertransport bus
[    0.000000] Detected use of extended apic ids on hypertransport bus
[    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[0x01] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 4, version 0, address 0xfec00000, GSI 0-0
[    0.000000] ACPI: IOAPIC (id[0x05] address[0xfec01000] gsi_base[32])
[    0.000000] IOAPIC[1]: apic_id 5, version 0, address 0xfec01000, GSI 32-32
[    0.000000] ACPI: IOAPIC (id[0x06] address[0xfec02000] gsi_base[64])
[    0.000000] IOAPIC[2]: apic_id 6, version 0, address 0xfec02000, GSI 64-64
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ERROR: Unable to locate IOAPIC for GSI 2
[    0.000000] ERROR: Unable to locate IOAPIC for GSI 9
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x1166a201 base: 0xfed00000
[    0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs
[    0.000000] PM: Registered nosave memory: 0000000000001000 - 0000000000006000
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
[    0.000000] PM: Registered nosave memory: 0000000080000000 - 00000000dfef8000
[    0.000000] PM: Registered nosave memory: 00000000dfef8000 - 00000000dff07000
[    0.000000] PM: Registered nosave memory: 00000000dff07000 - 00000000dff08000
[    0.000000] PM: Registered nosave memory: 00000000dff08000 - 00000000e0000000
[    0.000000] PM: Registered nosave memory: 00000000e0000000 - 00000000f0000000
[    0.000000] PM: Registered nosave memory: 00000000f0000000 - 00000000f8000000
[    0.000000] PM: Registered nosave memory: 00000000f8000000 - 00000000fe000000
[    0.000000] PM: Registered nosave memory: 00000000fe000000 - 0000000100000000
[    0.000000] Allocating PCI resources starting at e0000000 (gap: e0000000:10000000)
[    0.000000] Booting paravirtualized kernel on Xen
[    0.000000] Xen version: 4.0.1 (preserve-AD) (dom0)
[    0.000000] NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:4 nr_node_ids:2
[    0.000000] PERCPU: Embedded 29 pages/cpu @ffff880028017000 s89432 r8192 d21160 u118784
[    0.000000] pcpu-alloc: s89432 r8192 d21160 u118784 alloc=29*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 2 [1] 1 [1] 3
[    0.000000] Built 2 zonelists in Node order, mobility grouping on.  Total pages: 645371
[    0.000000] Policy zone: Normal
[    0.000000] Kernel command line: dummy=dummy root=UUID=a18de43a-d9d1-4622-84e3-b25edeecd603 ro console=hvc0
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Initializing CPU#0
[    0.000000] DMA: Placing 64MB software IO TLB between ffff880020000000 - ffff880024000000
[    0.000000] DMA: software IO TLB at phys 0x20000000 - 0x24000000
[    0.000000] xen_swiotlb_fixup: buf=ffff880020000000 size=67108864
[    0.000000] xen_swiotlb_fixup: buf=ffff880024060000 size=32768
[    0.000000] Memory: 1810960k/6290400k available (5463k kernel code, 3669364k absent, 810076k reserved, 2963k data, 708k init)
[    0.000000] SLUB: Unable to allocate memory from node 1
[    0.000000] SLUB: Allocating a useless per node structure in order to be able to continue
[    0.000000] SLUB: Genslabs=14, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=2
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:4352 nr_irqs:1280
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] Console: colour VGA+ 80x25
[    0.000000] console [hvc0] enabled
[    0.000000] allocated 26214400 bytes of page_cgroup
[    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[    0.000000] installing Xen timer for CPU 0
[    0.000000] Detected 2000.070 MHz processor.
[    0.010000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4000.14 BogoMIPS (lpj=20000700)
[    0.010000] Security Framework initialized
[    0.010000] SELinux:  Disabled at boot.
[    0.011132] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.021625] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.030060] Mount-cache hash table entries: 256
[    0.034828] Initializing cgroup subsys ns
[    0.038829] Initializing cgroup subsys cpuacct
[    0.040000] Initializing cgroup subsys memory
[    0.040023] Initializing cgroup subsys freezer
[    0.044501] Initializing cgroup subsys net_cls
[    0.049056] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
[    0.050005] CPU: L2 Cache: 1024K (64 bytes/line)
[    0.054678] CPU 0/0x0 -> Node 0
[    0.057899] CPU: Physical Processor ID: 0
[    0.060000] CPU: Processor Core ID: 0
[    0.060005] Performance Events: AMD PMU driver.
[    0.064590] ------------[ cut here ]------------
[    0.069279] WARNING: at arch/x86/xen/enlighten.c:729 xen_apic_write+0x15/0x20()
[    0.070000] Hardware name: PowerEdge SC1435
[    0.070000] Modules linked in:
[    0.070000] Pid: 0, comm: swapper Not tainted 2.6.32.35 #1
[    0.070000] Call Trace:
[    0.070000]  [<ffffffff8105cd28>] warn_slowpath_common+0x78/0xb0
[    0.070000]  [<ffffffff8105cd6f>] warn_slowpath_null+0xf/0x20
[    0.070000]  [<ffffffff8100b435>] xen_apic_write+0x15/0x20
[    0.070000]  [<ffffffff810211d1>] perf_events_lapic_init+0x31/0x40
[    0.070000]  [<ffffffff8185c3fb>] init_hw_perf_events+0x34c/0x3e9
[    0.070000]  [<ffffffff8185bf0b>] identify_boot_cpu+0x3c/0x3e
[    0.070000]  [<ffffffff8185c08b>] check_bugs+0x9/0x2d
[    0.070000]  [<ffffffff81852d7d>] start_kernel+0x3e2/0x3f8
[    0.070000]  [<ffffffff8185233a>] x86_64_start_reservations+0x125/0x129
[    0.070000]  [<ffffffff81856333>] xen_start_kernel+0x618/0x61f
[    0.070000] ---[ end trace a7919e7f17c0a725 ]---
[    0.070000] ... version:                0
[    0.070000] ... bit width:              48
[    0.070000] ... generic registers:      4
[    0.070000] ... value mask:             0000ffffffffffff
[    0.070000] ... max period:             00007fffffffffff
[    0.070000] ... fixed-purpose events:   0
[    0.070000] ... event mask:             000000000000000f
[    0.070000] SMP alternatives: switching to UP code
[    0.070000] ACPI: Core revision 20090903
[    0.078934] cpu 0 spinlock event irq 1278
[    0.080380] installing Xen timer for CPU 1
[    0.084488] cpu 1 spinlock event irq 1272
[    0.088576] SMP alternatives: switching to SMP code
[    0.010000] Initializing CPU#1
[    0.010000] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
[    0.010000] CPU: L2 Cache: 1024K (64 bytes/line)
[    0.010000] CPU 1/0x0 -> Node 0
[    0.010000] CPU: Physical Processor ID: 1
[    0.010000] CPU: Processor Core ID: 0
[    0.090355] installing Xen timer for CPU 2
[    0.100020] cpu 2 spinlock event irq 1266
[    0.010000] Initializing CPU#2
[    0.010000] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
[    0.010000] CPU: L2 Cache: 1024K (64 bytes/line)
[    0.010000] CPU 2/0x0 -> Node 0
[    0.010000] CPU: Physical Processor ID: 0
[    0.010000] CPU: Processor Core ID: 1
[    0.104444] installing Xen timer for CPU 3
[    0.110020] cpu 3 spinlock event irq 1260
[    0.010000] Initializing CPU#3
[    0.010000] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
[    0.010000] CPU: L2 Cache: 1024K (64 bytes/line)
[    0.010000] CPU 3/0x0 -> Node 0
[    0.010000] CPU: Physical Processor ID: 1
[    0.010000] CPU: Processor Core ID: 1
[    0.114293] Brought up 4 CPUs
[    0.120431] Grant table initialized
[    0.123552] regulator: core version 0.5
[    0.127472] Time: 10:10:22  Date: 03/28/11
[    0.130087] NET: Registered protocol family 16
[    0.134553] TOM: 00000000e0000000 aka 3584M
[    0.140044] TOM2: 0000000120000000 aka 4608M
[    0.144366] ACPI: bus type pci registered
[    0.148422] PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 63
[    0.148422] PCI: MCFG area at f0000000 reserved in E820
[    0.162036] PCI: Using MMCONFIG at f0000000 - f3ffffff
[    0.167156] PCI: Using configuration type 1 for base access
[    0.180062] bio: create slab <bio-0> at 0
[    0.190202] ERROR: Unable to locate IOAPIC for GSI 9
[    0.204744] ACPI: Interpreter enabled
[    0.208393] ACPI: (supports S0 S4 S5)
[    0.210000] ACPI: Using IOAPIC for interrupt routing
[    0.230371] ACPI: No dock devices found.
[    0.236285] ACPI: PCI Root Bridge [PCI0] (0000:00)
[    0.240151] pci 0000:00:01.0: Enabling HT MSI Mapping
[    0.246234] pci 0000:00:03.2: PME# supported from D0 D1 D2 D3hot
[    0.250000] pci 0000:00:03.2: PME# disabled
[    0.250000] pci 0000:00:07.0: PME# supported from D0 D3hot D3cold
[    0.250000] pci 0000:00:07.0: PME# disabled
[    0.250000] pci 0000:00:08.0: PME# supported from D0 D3hot D3cold
[    0.250000] pci 0000:00:08.0: PME# disabled
[    0.250000] pci 0000:00:09.0: PME# supported from D0 D3hot D3cold
[    0.250000] pci 0000:00:09.0: PME# disabled
[    0.250000] pci 0000:00:0a.0: PME# supported from D0 D3hot D3cold
[    0.250000] pci 0000:00:0a.0: PME# disabled
[    0.250000] pci 0000:00:0b.0: PME# supported from D0 D3hot D3cold
[    0.250000] pci 0000:00:0b.0: PME# disabled
[    0.251094] pci 0000:01:00.0: PME# supported from D3hot D3cold
[    0.256911] pci 0000:01:00.0: PME# disabled
[    0.260000] pci 0000:02:00.0: PME# supported from D3hot D3cold
[    0.260000] pci 0000:02:00.0: PME# disabled
[    0.261929] ACPI Warning for \_SB_.PCI0.EXB0._PRT: Return Package has no elements (empty) (20090903/nspredef-433)
[    0.271029] ACPI Warning for \_SB_.PCI0.EXB4._PRT: Return Package has no elements (empty) (20090903/nspredef-433)
(XEN) PCI add device 00:01.0
(XEN) PCI add device 00:02.0
(XEN) PCI add device 00:02.1
(XEN) PCI add device 00:02.2
(XEN) PCI add device 00:03.0
(XEN) PCI add device 00:03.1
(XEN) PCI add device 00:03.2
(XEN) PCI add device 00:04.0
(XEN) PCI add device 00:07.0
(XEN) PCI add device 00:08.0
(XEN) PCI add device 00:09.0
(XEN) PCI add device 00:0a.0
(XEN) PCI add device 00:0b.0
(XEN) PCI add device 00:18.0
(XEN) PCI add device 00:18.1
(XEN) PCI add device 00:18.2
(XEN) PCI add device 00:18.3
(XEN) PCI add device 00:19.0
(XEN) PCI add device 00:19.1
(XEN) PCI add device 00:19.2
(XEN) PCI add device 00:19.3
(XEN) PCI add device 03:0d.0
(XEN) PCI add device 03:0e.0
(XEN) PCI add device 01:00.0
(XEN) PCI add device 02:00.0
[    0.342582] ACPI: PCI Interrupt Link [LK10] (IRQs 3 4 5 *6 7 10 11)
[    0.346589] ACPI: PCI Interrupt Link [LK11] (IRQs 3 4 *5 6 7 10 11)
[    0.350185] ACPI: PCI Interrupt Link [LK12] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.357753] ACPI: PCI Interrupt Link [LK13] (IRQs 3 4 5 *6 7 10 11)
[    0.360186] ACPI: PCI Interrupt Link [LK14] (IRQs 3 4 *5 6 7 10 11)
[    0.366629] ACPI: PCI Interrupt Link [LK15] (IRQs 3 4 5 6 7 *10 11)
[    0.370184] ACPI: PCI Interrupt Link [LK16] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.377754] ACPI: PCI Interrupt Link [LK17] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.380187] ACPI: PCI Interrupt Link [LK18] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.387751] ACPI: PCI Interrupt Link [LK19] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.390185] ACPI: PCI Interrupt Link [LK1A] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.397752] ACPI: PCI Interrupt Link [LK1B] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.400191] ACPI: PCI Interrupt Link [LK1C] (IRQs 3 4 5 6 7 *10 11)
[    0.406632] ACPI: PCI Interrupt Link [LK1D] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.410183] ACPI: PCI Interrupt Link [LK1E] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.417753] ACPI: PCI Interrupt Link [LK1F] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.420187] ACPI: PCI Interrupt Link [LK20] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.427751] ACPI: PCI Interrupt Link [LK21] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.430184] ACPI: PCI Interrupt Link [LK22] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.437753] ACPI: PCI Interrupt Link [LK23] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.440184] ACPI: PCI Interrupt Link [LK24] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.447752] ACPI: PCI Interrupt Link [LK25] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.450183] ACPI: PCI Interrupt Link [LK26] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.457752] ACPI: PCI Interrupt Link [LK27] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.460186] ACPI: PCI Interrupt Link [LK28] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.467752] ACPI: PCI Interrupt Link [LK29] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.470189] ACPI: PCI Interrupt Link [LK2A] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.477759] ACPI: PCI Interrupt Link [LK2B] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.480184] ACPI: PCI Interrupt Link [LK2C] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.487751] ACPI: PCI Interrupt Link [LK2D] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.490186] ACPI: PCI Interrupt Link [LK2E] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.497753] ACPI: PCI Interrupt Link [LK2F] (IRQs 3 4 5 6 7 10 11) *0, disabled.
[    0.500194] ACPI: PCI Interrupt Link [LK01] (IRQs 3 4 5 6 7 10 *11 12 14)
[    0.507156] ACPI: PCI Interrupt Link [LK07] (IRQs 3 4 5 *6 7 10 11 12 14)
[    0.510101] xen_balloon: Initialising balloon driver with page order 0.
[    0.516642] last_pfn = 0x17fef8 max_arch_pfn = 0x400000000
[    0.523388] BUG: unable to handle kernel paging request at ffffea0003f00028
[    0.530000] IP: [<ffffffff8187fb96>] balloon_init+0x200/0x253
[    0.530000] PGD 28402067 PUD 28403067 PMD 2a615067 PTE 0
[    0.530000] Oops: 0002 [#1] SMP
[    0.530000] last sysfs file:
[    0.530000] CPU 0
[    0.530000] Modules linked in:
[    0.530000] Pid: 1, comm: swapper Tainted: G        W  2.6.32.35 #1 PowerEdge SC1435
[    0.530000] RIP: e030:[<ffffffff8187fb96>]  [<ffffffff8187fb96>] balloon_init+0x200/0x253
[    0.530000] RSP: e02b:ffff88007d275ed0  EFLAGS: 00010202
[    0.530000] RAX: ffffea0003f00038 RBX: ffffea0003f00028 RCX: ffffffffffffffc8
[    0.530000] RDX: 0000000000120001 RSI: 000000000017fef8 RDI: ffffea0003effff0
[    0.530000] RBP: ffff88007d275ee0 R08: 0000000000020001 R09: 0000000000000001
[    0.530000] R10: 0000000000000038 R11: 0000000000000000 R12: ffffffff8187f996
[    0.530000] R13: 0000000000000040 R14: 0000000000000040 R15: 0000000000000000
[    0.530000] FS:  0000000000000000(0000) GS:ffff880028017000(0000) knlGS:0000000000000000
[    0.530000] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[    0.530000] CR2: ffffea0003f00028 CR3: 0000000001001000 CR4: 0000000000000660
[    0.530000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    0.530000] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[    0.530000] Process swapper (pid: 1, threadinfo ffff88007d274000, task ffff88007d278000)
[    0.530000] Stack:
[    0.530000]  ffff88007d275ee0 0000000000000000 ffff88007d275f10 ffffffff8100a047
[    0.530000] <0> ffff88007d275f10 ffffffff818d2178 ffffffff81836068 0000000000000040
[    0.530000] <0> ffff88007d275f40 ffffffff8185271d 0000000000000000 6db6db6db6db6db7
[    0.530000] Call Trace:
[    0.530000]  [<ffffffff8100a047>] do_one_initcall+0x37/0x1a0
[    0.530000]  [<ffffffff8185271d>] kernel_init+0x147/0x19d
[    0.530000]  [<ffffffff81014f0a>] child_rip+0xa/0x20
[    0.530000]  [<ffffffff810140e1>] ? int_ret_from_sys_call+0x7/0x1b
[    0.530000]  [<ffffffff8101489d>] ? retint_restore_args+0x5/0x6
[    0.530000]  [<ffffffff81014f00>] ? child_rip+0x0/0x20
[    0.530000] Code: ff ff 48 c1 ea 0c 48 6b ca 38 4d 6b d1 38 48 8d 04 01 49 6b c9 c8 eb 2b 48 8b 3d 36 1e f6 ff 48 8d 5c 08 28 4c 01 ca 48 89 5f 08 <48> 89 7c 08 28 48 c7 44 08 30 c0 19 7e 81 48 89 1d 15 1e f6 ff
[    0.530000] RIP  [<ffffffff8187fb96>] balloon_init+0x200/0x253
[    0.530000]  RSP <ffff88007d275ed0>
[    0.530000] CR2: ffffea0003f00028
[    0.530000] ---[ end trace a7919e7f17c0a726 ]---
[    0.530023] Kernel panic - not syncing: Attempted to kill init!
[    0.535968] Pid: 1, comm: swapper Tainted: G      D W  2.6.32.35 #1
[    0.540000] Call Trace:
[    0.540000]  [<ffffffff8154bb71>] panic+0x73/0x133
[    0.540000]  [<ffffffff8154ecab>] ? _write_lock_irq+0xb/0x20
[    0.540000]  [<ffffffff810610f4>] do_exit+0x6d4/0x800
[    0.540000]  [<ffffffff810105b2>] ? check_events+0x12/0x20
[    0.540000]  [<ffffffff8154fd8a>] oops_end+0xaa/0xf0
[    0.540000]  [<ffffffff8103a9ba>] no_context+0xea/0x270
[    0.540000]  [<ffffffff8101059f>] ? xen_restore_fl_direct_end+0x0/0x1
[    0.540000]  [<ffffffff8154ed09>] ? _spin_unlock_irqrestore+0x19/0x20
[    0.540000]  [<ffffffff8103ac55>] __bad_area_nosemaphore+0x115/0x1c0
[    0.540000]  [<ffffffff8103ad0e>] bad_area_nosemaphore+0xe/0x10
[    0.540000]  [<ffffffff8155178b>] do_page_fault+0x2cb/0x380
[    0.540000]  [<ffffffff8187f996>] ? balloon_init+0x0/0x253
[    0.540000]  [<ffffffff8154f175>] page_fault+0x25/0x30
[    0.540000]  [<ffffffff8187f996>] ? balloon_init+0x0/0x253
[    0.540000]  [<ffffffff8187fb96>] ? balloon_init+0x200/0x253
[    0.540000]  [<ffffffff8100a047>] do_one_initcall+0x37/0x1a0
[    0.540000]  [<ffffffff8185271d>] kernel_init+0x147/0x19d
[    0.540000]  [<ffffffff81014f0a>] child_rip+0xa/0x20
[    0.540000]  [<ffffffff810140e1>] ? int_ret_from_sys_call+0x7/0x1b
[    0.540000]  [<ffffffff8101489d>] ? retint_restore_args+0x5/0x6
[    0.540000]  [<ffffffff81014f00>] ? child_rip+0x0/0x2-


------------------------------

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End of Xen-devel Digest, Vol 73, Issue 380
******************************************

-- 
Regards,

Dongxu

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