Re: crash in is_xen_swiotlb_buffer

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Tue, Mar 13, 2012 at 07:09:17PM +0000, Goncalo Gomes wrote:
> On Tue, 13 Mar 2012, Goncalo Gomes wrote:
> 
> > On Tue, 13 Mar 2012, Konrad Rzeszutek Wilk wrote:
> > 
> > > > (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> > > > [    0.000000] ------------[ cut here ]------------
> > > > [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> > > > [    0.000000] Hardware name: PowerEdge R310
> > > > [    0.000000] Modules linked in:
> > > > [    0.000000] Pid: 0, comm: swapper Not tainted 3.2.9 #9
> > > > [    0.000000] Call Trace:
> > > > [    0.000000]  [<c104236b>] ? warn_slowpath_common+0x6a/0x7b
> > > > [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> > > > [    0.000000]  [<c1042389>] ? warn_slowpath_null+0xd/0x10
> > > > [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> > > > [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> > > > [    0.000000]  [<c102edbe>] ? set_pmd_pfn+0xde/0xf9
> > > > [    0.000000]  [<c168b652>] ? init_alloc_remap+0x1b3/0x216
> > > > [    0.000000]  [<c168aa48>] ? setup_node_data+0x4c/0x22f
> > > > [    0.000000]  [<c168b203>] ? T.744+0x290/0x2c2
> > > > [    0.000000]  [<c168b2ac>] ? T.743+0x77/0x1a1
> > > > [    0.000000]  [<c1025290>] ? default_get_apic_id+0x14/0x33
> > > > [    0.000000]  [<c168b3ed>] ? initmem_init+0x5/0xb7
> > > > [    0.000000]  [<c167cef4>] ? setup_arch+0x5bf/0x694
> > > > [    0.000000]  [<c100b840>] ? __spin_time_accum+0x26/0x36
> > > > [    0.000000]  [<c167852c>] ? start_kernel+0x81/0x34d
> > > > [    0.000000]  [<c167a258>] ? xen_start_kernel+0x554/0x55b
> > > > [    0.000000] ---[ end trace 4eaa2a86a8e2da22 ]---
> > > 
> > > So this is first time I am seeing this. It looks like something in 3.2 -> 3.2.9
> > > is causing this. Can you do one more check - and just try booting the 3.2 virgin
> > > and seeing how it works?
> > 
> > Sure, I'll try it once I have a chance.
> 
> With 3.2.0 + 4.1.2, all it took was booting domain0 

I am really perplexed. I just booted 4.1.2 + 3.2.9 and 3.2.0 and I had no trouble.
Can you send me your .config file please?

Oh wait, I am building 64-bit, you are doing 32-bit. Is your hypervisor 32-bit or
64-bit? 
> 
> Boot log attached.
> 
> Goncalo
> 
>  
> > Goncalo
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel

> Script started on Tue 13 Mar 2012 19:04:33 GMT
> goncalog@eire:~$ 
> goncalog@eire:~$ 
> goncalog@eire:~$ 
> goncalog@eire:~$ 
> goncalog@eire:~$ 
> goncalog@eire:~$ ssh dt29\b\b\b\b\b\b\b\b^[[4Pmutt\b\b\b\bssh dt29\b\b\b\b\b\b\b\b^[[Kssh dt29\b\b\b\b\b\b\b\b^[[4Pmutt\b\b\ban ioctl\b\b\b\b\bsendfile\b\b\b\b\b\b\b\b\b\b\b\bls^[[K^C
> goncalog@eire:~$ 
^[[5@(reverse-i-search)`':^[[C\b\b\b-': vi dt29-boot-4.1.2\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b^[[3Pt': xenuse -t dt29\b\b\b\b\b\b\b
^[[7Pgoncalog@eire:~$^[[C^[[C^[[C^[[C^[[C^[[C^[[C^[[C
> [Enter `^Ec?' for help]
> ^[[?25h^[[H^[[J^[[H^[[J __  __            _  _    _   ____  
>  \ \/ /___ _ __   | || |  / | |___ \ 
>   \  // _ \ '_ \  | || |_ | |   __) |
>   /  \  __/ | | | |__   _|| |_ / __/ 
>  /_/\_\___|_| |_|    |_|(_)_(_)_____|
>                                      
> (XEN) Xen version 4.1.2 (root@uk.xensource.com) (gcc version 4.4.5 (Debian 4.4.5-8) ) Tue Mar 13 17:07:49 UTC 2012
> (XEN) Latest ChangeSet: unavailable
> (XEN) Bootloader: GRUB 1.98+20100804-14+squeeze1
> (XEN) Command line: placeholder dom0_mem=1024M com1=115200,8n1 console=com1,vga loglvl=all guest_loglvl=all
> (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 - 000000000009e000 (usable)
> (XEN)  0000000000100000 - 00000000bf699000 (usable)
> (XEN)  00000000bf699000 - 00000000bf6af000 (reserved)
> (XEN)  00000000bf6af000 - 00000000bf6ce000 (ACPI data)
> (XEN)  00000000bf6ce000 - 00000000c0000000 (reserved)
> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
> (XEN)  00000000fe000000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 0000000240000000 (usable)
> (XEN) System RAM: 8182MB (8378588kB)
> (XEN) ACPI: RSDP 000F0AA0, 0024 (r2 DELL  )
> (XEN) ACPI: XSDT 000F0BA0, 008C (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: FACP BF6C3BB4, 00F4 (r3 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: DSDT BF6AF000, 3E43 (r1 DELL   PE_SC3          1 INTL 20050624)
> (XEN) ACPI: FACS BF6C6000, 0040
> (XEN) ACPI: APIC BF6C3478, 0152 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: SPCR BF6C35CC, 0050 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: HPET BF6C3620, 0038 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: DMAR BF6C365C, 00A8 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: MCFG BF6C3850, 003C (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: WD__ BF6C3890, 0134 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: SLIC BF6C39C8, 0024 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: ERST BF6B2FC4, 0270 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: HEST BF6B3234, 03A8 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: BERT BF6B2E44, 0030 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: EINJ BF6B2E74, 0150 (r1 DELL   PE_SC3          1 DELL        1)
> (XEN) ACPI: TCPA BF6C3B4C, 0064 (r2 DELL   PE_SC3          1 DELL        1)
> (XEN) No NUMA configuration found
> (XEN) Faking a node at 0000000000000000-0000000240000000
> (XEN) Xen heap: 9MB (9752kB)
> (XEN) Domain heap initialised
> (XEN) found SMP MP-table at 000fe710
> (XEN) DMI 2.6 present.
> (XEN) Using APIC driver default
> (XEN) ACPI: PM-Timer IO Port: 0x808
> (XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[804,0], pm1x_evt[800,0]
> (XEN) ACPI:                  wakeup_vec[bf6c600c], vec_size[20]
> (XEN) ACPI: Local APIC address 0xfee00000
> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> (XEN) Processor #0 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
> (XEN) Processor #2 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled)
> (XEN) Processor #4 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled)
> (XEN) Processor #6 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x01] enabled)
> (XEN) Processor #1 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x03] enabled)
> (XEN) Processor #3 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x05] enabled)
> (XEN) Processor #5 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x07] enabled)
> (XEN) Processor #7 7:14 APIC version 21
> (XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x28] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x29] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x2a] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x2b] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x2c] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x2d] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x2e] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x2f] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x11] lapic_id[0x30] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x12] lapic_id[0x31] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x13] lapic_id[0x32] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x14] lapic_id[0x33] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x15] lapic_id[0x34] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x16] lapic_id[0x35] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x17] lapic_id[0x36] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x18] lapic_id[0x37] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x19] lapic_id[0x38] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x39] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x3a] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x3b] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x3c] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x3d] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x3e] disabled)
> (XEN) ACPI: LAPIC (acpi_id[0x20] lapic_id[0x3f] disabled)
> (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
> (XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
> (XEN) IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> (XEN) ACPI: IRQ0 used by override.
> (XEN) ACPI: IRQ2 used by override.
> (XEN) ACPI: IRQ9 used by override.
> (XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
> (XEN) ACPI: HPET id: 0x8086a701 base: 0xfed00000
> (XEN) ERST table is invalid
> (XEN) Using ACPI (MADT) for SMP configuration information
> (XEN) IRQ limits: 24 GSI, 1528 MSI/MSI-X
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) Detected 2660.033 MHz processor.
> (XEN) mce_intel.c:1162: MCA Capability: BCAST 1 SER 0 CMCI 1 firstbank 0 extended MCE MSR 0
> (XEN) Intel machine check reporting enabled
> (XEN) Intel VT-d Snoop Control enabled.
> (XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
> (XEN) Intel VT-d Queued Invalidation enabled.
> (XEN) Intel VT-d Interrupt Remapping not enabled.
> (XEN) Intel VT-d Shared EPT tables not enabled.
> (XEN) I/O virtualisation enabled
> (XEN)  - Dom0 mode: Relaxed
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method
> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
> (XEN) Platform timer is 14.318MHz HPET
> XEN) Allocated console ring of 64 KiB.
> (XEN) VMX: Supported advanced features:
> (XEN)  - APIC MMIO access virtualisation
> (XEN)  - APIC TPR shadow
> (XEN)  - Extended Page Tables (EPT)
> (XEN)  - Virtual-Processor Identifiers (VPID)
> (XEN)  - Virtual NMI
> (XEN)  - MSR direct-access bitmap
> (XEN) EPT supports 2MB super page.
> (XEN) HVM: ASIDs enabled.
> (XEN) HVM: VMX enabled
> (XEN) HVM: Hardware Assisted Paging detected.
> (XEN) Brought up 8 CPUs
> (XEN) HPET: 8 timers in total, 8 timers will be used for broadcast
> (XEN) ACPI sleep modes: S3
> (XEN) mcheck_poll: Machine check polling timer started.
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN) elf_parse_binary: phdr: paddr=0x1000000 memsz=0x638000
> (XEN) elf_parse_binary: phdr: paddr=0x1638000 memsz=0x3b7000
> (XEN) elf_parse_binary: memory: 0x1000000 -> 0x19ef000
> (XEN) elf_xen_parse_note: GUEST_OS = "linux"
> (XEN) elf_xen_parse_note: GUEST_VERSION = "2.6"
> (XEN) elf_xen_parse_note: XEN_VERSION = "xen-3.0"
> (XEN) elf_xen_parse_note: VIRT_BASE = 0xc0000000
> (XEN) elf_xen_parse_note: ENTRY = 0xc1676000
> (XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xc1002000
> (XEN) elf_xen_parse_note: FEATURES = "!writable_page_tables|pae_pgdir_above_4gb"
> (XEN) elf_xen_parse_note: PAE_MODE = "yes"
> (XEN) elf_xen_parse_note: LOADER = "generic"
> (XEN) elf_xen_parse_note: unknown xen elf note (0xd)
> (XEN) elf_xen_parse_note: SUSPEND_CANCEL = 0x1
> (XEN) elf_xen_parse_note: HV_START_LOW = 0xf5800000
> (XEN) elf_xen_parse_note: PADDR_OFFSET = 0x0
> (XEN) elf_xen_addr_calc_check: addresses:
> (XEN)     virt_base        = 0xc0000000
> (XEN)     elf_paddr_offset = 0x0
> (XEN)     virt_offset      = 0xc0000000
> (XEN)     virt_kstart      = 0xc1000000
> (XEN)     virt_kend        = 0xc19ef000
> (XEN)     virt_entry       = 0xc1676000
> (XEN)     p2m_base         = 0xffffffffffffffff
> (XEN)  Xen  kernel: 32-bit, PAE, lsb
> (XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0x1000000 -> 0x19ef000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   0000000234000000->0000000236000000 (236052 pages to be allocated)
> (XEN)  Init. ramdisk: 000000023ba14000->000000023ffffa00
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: c1000000->c19ef000
> (XEN)  Init. ramdisk: c19ef000->c5fdaa00
> (XEN)  Phys-Mach map: c5fdb000->c60db000
> (XEN)  Start info:    c60db000->c60db47c
> (XEN)  Page tables:   c60dc000->c6113000
> (XEN)  Boot stack:    c6113000->c6114000
> (XEN)  TOTAL:         c0000000->c6400000
> (XEN)  ENTRY ADDRESS: c1676000
> (XEN) Dom0 has maximum 8 VCPUs
> (XEN) elf_load_binary: phdr 0 at 0xc1000000 -> 0xc1638000
> (XEN) elf_load_binary: phdr 1 at 0xc1638000 -> 0xc16e8000
> (XEN) Scrubbing Free RAM: ......................................................................done.
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: All
> (XEN) Guest Loglevel: All
> (XEN) Xen is relinquishing VGA console.
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
> (XEN) Freed 172kB init memory.
> mapping kernel into physical memory
> Xen: setup ISA identity maps
> about to get started...
> [    0.000000] Reserving virtual address space above 0xf5800000
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 3.2.0 (root@dt29) (gcc version 4.4.5 (Debian 4.4.5-8) ) #1 SMP Tue Mar 13 18:37:14 UTC 2012
> [    0.000000] Freeing  9e-100 pfn range: 98 pages freed
> [    0.000000] Released 98 pages of unused memory
> [    0.000000] Set 264649 page(s) to 1-1 mapping
> [    0.000000] BIOS-provided physical RAM map:
> [    0.000000]  Xen: 0000000000000000 - 000000000009e000 (usable)
> [    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
> [    0.000000]  Xen: 0000000000100000 - 00000000bf699000 (usable)
> [    0.000000]  Xen: 00000000bf699000 - 00000000bf6af000 (reserved)
> [    0.000000]  Xen: 00000000bf6af000 - 00000000bf6ce000 (ACPI data)
> [    0.000000]  Xen: 00000000bf6ce000 - 00000000c0000000 (reserved)
> [    0.000000]  Xen: 00000000e0000000 - 00000000f0000000 (reserved)
> [    0.000000]  Xen: 00000000fe000000 - 0000000100000000 (reserved)
> [    0.000000]  Xen: 0000000100000000 - 0000000240000000 (usable)
> [    0.000000] bootconsole [xenboot0] enabled
> [    0.000000] NX (Execute Disable) protection: active
> [    0.000000] DMI 2.6 present.
> [    0.000000] last_pfn = 0x240000 max_arch_pfn = 0x1000000
> [    0.000000] found SMP MP-table at [c00fe710] fe710
> [    0.000000] init_memory_mapping: 0000000000000000-000000002cdfe000
> (XEN) mm.c:907:d0 Error getting mfn 3409e (pfn 55555555) from L1 entry 000000003409e023 for l1e_owner=0, pg_owner=0
> (XEN) mm.c:4962:d0 ptwr_emulate: fixing up invalid PAE PTE 000000003409e023
> (XEN) mm.c:907:d0 Error getting mfn 3409f (pfn 55555555) from L1 entry 000000003409f023 for l1e_owner=0, pg_owner=0
> (XEN) mm.c:4962:d0 ptwr_emulate: fixing up invalid PAE PTE 000000003409f023
> [    0.000000] RAMDISK: 019ef000 - 05fdb000
> [    0.000000] ACPI: RSDP 000f0aa0 00024 (v02 DELL  )
> [    0.000000] ACPI: XSDT 000f0ba0 0008C (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: FACP bf6c3bb4 000F4 (v03 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: DSDT bf6af000 03E43 (v01 DELL   PE_SC3   00000001 INTL 20050624)
> [    0.000000] ACPI: FACS bf6c6000 00040
> [    0.000000] ACPI: APIC bf6c3478 00152 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: SPCR bf6c35cc 00050 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: HPET bf6c3620 00038 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: XMAR bf6c365c 000A8 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: MCFG bf6c3850 0003C (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: WD__ bf6c3890 00134 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: SLIC bf6c39c8 00024 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: ERST bf6b2fc4 00270 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: HEST bf6b3234 003A8 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: BERT bf6b2e44 00030 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: EINJ bf6b2e74 00150 (v01 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] ACPI: TCPA bf6c3b4c 00064 (v02 DELL   PE_SC3   00000001 DELL 00000001)
> [    0.000000] No NUMA configuration found
> [    0.000000] Faking a node at 0000000000000000-0000000240000000
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Not tainted 3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da22 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da23 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da24 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da25 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da26 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da27 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da28 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da29 ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da2a ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c167652c>] ? start_kernel+0x81/0x34d
> [    0.000000]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [    0.000000] ---[ end trace 4eaa2a86a8e2da2b ]---
> (XEN) mm.c:943:d0 Attempt to map superpage without allowsuperpage flag in hypervisor
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/xen/multicalls.c:129 xen_mc_issue+0x34/0x62()
> [    0.000000] Hardware name: PowerEdge R310
> [    0.000000] Modules linked in:
> [    0.000000] Pid: 0, comm: swapper Tainted: G        W    3.2.0 #1
> [    0.000000] Call Trace:
> [    0.000000]  [<c10421fb>] ? warn_slowpath_common+0x6a/0x7b
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1042219>] ? warn_slowpath_null+0xd/0x10
> [    0.000000]  [<c1005442>] ? xen_mc_issue+0x34/0x62
> [    0.000000]  [<c1005f3b>] ? xen_set_pmd_hyper+0x3c/0x42
> [    0.000000]  [<c102ec56>] ? set_pmd_pfn+0xde/0xf9
> [    0.000000]  [<c16895c1>] ? init_alloc_remap+0x1b3/0x216
> [    0.000000]  [<c16889b7>] ? setup_node_data+0x4c/0x22f
> [    0.000000]  [<c1689172>] ? T.744+0x290/0x2c2
> [    0.000000]  [<c168921b>] ? T.743+0x77/0x1a1
> [    0.000000]  [<c10251bc>] ? default_get_apic_id+0x14/0x33
> [    0.000000]  [<c168935c>] ? initmem_init+0x5/0xb7
> [    0.000000]  [<c167aef4>] ? setup_arch+0x5bf/0x694
> [    0.000000]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [    0.000000]  [<c1[    4.991674] Freeing initrd memory: 71600k freed
> [    5.008319] audit: initializing netlink socket (disabled)
> [    5.008597] type=2000 audit(1331664964.980:1): initialized
> [    5.010609] highmem bounce pool size: 64 pages
> [    5.016079] VFS: Disk quotas dquot_6.5.2
> [    5.016507] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [    5.018142] NTFS driver 2.1.30 [Flags: R/W DEBUG].
> [    5.018584] msgmni has been set to 1133
> [    5.022247] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
> [    5.022706] io scheduler noop registered
> [    5.022949] io scheduler deadline registered
> [    5.023205] io scheduler cfq registered (default)
> (XEN) physdev.c:155: dom0: wrong map_pirq type 3
> [    5.025093] pcieport 0000:00:03.0: Signaling PME through PCIe PME interrupt
> [    5.025379] pcieport 0000:00:05.0: Signaling PME through PCIe PME interrupt
> [    5.025689] pcieport 0000:00:1c.0: Signaling PME through PCIe PME interrupt
> [    5.025941] pci 0000:03:00.0: Signaling PME through PCIe PME interrupt
> [    5.026253] pcieport 0000:00:1c.4: Signaling PME through PCIe PME interrupt
> [    5.026528] pci 0000:02:00.0: Signaling PME through PCIe PME interrupt
> [    5.026784] pci 0000:02:00.1: Signaling PME through PCIe PME interrupt
> [    5.027357] isapnp: Scanning for PnP cards...
> [    5.381669] isapnp: No Plug & Play device found
> [    5.382025] Event-channel device installed.
> [    5.382518] xen-pciback: backend is vpci
> [    5.383566] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> (XEN) irq.c:1200:d0 Cannot bind IRQ 4 to guest. In use by 'ns16550'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 2 to guest. In use by 'cascade'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 4 to guest. In use by 'ns16550'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 2 to guest. In use by 'cascade'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 4 to guest. In use by 'ns16550'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 2 to guest. In use by 'cascade'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 4 to guest. In use by 'ns16550'.
> (XEN) irq.c:1200:d0 Cannot bind IRQ 2 to guest. In use by 'cascade'.
> [    5.723699] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
> [    5.972246] 00:06: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
> [    6.783904] hpet_acpi_add: no address or irqs in _CRS
> [    6.784282] Non-volatile memory driver v1.3
> [    6.785060] telclk_interrup = 0xf non-mcpbl0010 hw.
> [    6.785310] Linux agpgart interface v0.103
> [    6.787839] usbcore: registered new interface driver hwa-rc
> [    6.788090] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    6.788425] ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> [    6.788703] ehci_hcd 0000:00:1a.0: EHCI Host Controller
> [    6.788959] ehci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
> [    6.789475] ehci_hcd 0000:00:1a.0: debug port 2
> [    6.793696] ehci_hcd 0000:00:1a.0: irq 22, io mem 0xdf0fc000
> [    6.807535] ehci_hcd 0000:00:1a.0: USB 2.0 started, EHCI 1.00
> [    6.807838] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [    6.808090] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    6.808545] usb usb1: Product: EHCI Host Controller
> [    6.808794] usb usb1: Manufacturer: Linux 3.2.0 ehci_hcd
> [    6.809068] usb usb1: SerialNumber: 0000:00:1a.0
> [    6.809575] hub 1-0:1.0: USB hub found
> [    6.809829] hub 1-0:1.0: 2 ports detected
> [    6.810341] xen_map_pirq_gsi: returning irq 22 for gsi 22
> [    6.810598] Already setup the GSI :22
> [    6.810844] ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> [    6.811123] ehci_hcd 0000:00:1d.0: EHCI Host Controller
> [    6.811384] ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
> [    6.811918] ehci_hcd 0000:00:1d.0: debug port 2
> [    6.816066] ehci_hcd 0000:00:1d.0: irq 22, io mem 0xdf0fe000
> [    6.831542] ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00
> [    6.831853] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
> [    6.832103] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    6.832555] usb usb2: Product: EHCI Host Controller
> [    6.832825] usb usb2: Manufacturer: Linux 3.2.0 ehci_hcd
> [    6.833075] usb usb2: SerialNumber: 0000:00:1d.0
> [    6.833563] hub 2-0:1.0: USB hub found
> [    6.833815] hub 2-0:1.0: 2 ports detected
> [    6.834353] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    6.834647] uhci_hcd: USB Universal Host Controller Interface driver
> [    6.834950] r8a66597_hcd: driver r8a66597_hcd, 2009-05-26
> [    6.835373] i8042: PNP: No PS/2 controller found. Probing ports directly.
> [    6.836527] i8042: No controller found
> [    6.836869] mousedev: PS/2 mouse device common for all mice
> [    6.837581] rtc_cmos 00:04: RTC can wake from S4
> [    6.838042] rtc_cmos 00:04: rtc core: registered rtc_cmos as rtc0
> [    6.843434] rtc0: alarms up to one day, y3k, 242 bytes nvram
> [    6.843793] sc520_wdt: WDT driver for SC520 initialised. timeout=30 sec (nowayout=0)
> [    6.844260] wdt: Xen WatchDog Timer Driver v0.01
> [    6.844571] wdt: cannot register miscdev on minor=130 (-16)
> [    6.844823] wdt: probe of wdt failed with error -16
> [    6.845072] SoftDog: cannot register miscdev on minor=130 (err=-16)
> [    6.845460] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
> [    6.846745] TCP cubic registered
> [    6.847299] NET: Registered protocol family 10
> [    6.849386] Mobile IPv6
> [    6.849630] NET: Registered protocol family 17
> [    6.850535] sctp: Hash tables configured (established 65536 bind 65536)
> [    6.851272] Registering the dns_resolver key type
> [    6.851552] Using IPI No-Shortcut mode
> [    6.852053] registered taskstats version 1
> [    6.853100] console [netcon0] enabled
> [    6.853344] netconsole: network logging started
> [    6.853690] rtc_cmos 00:04: setting system clock to 2012-03-13 18:56:06 UTC (1331664966)
> [    6.854236] Initializing network drop monitor service
> [    6.854866] Freeing unused kernel memory: 436k freed
> [    6.856484] Write protecting the kernel text: 3912k
> [    6.857532] Write protecting the kernel read-only data: 2456k
> [    6.857798] NX-protecting the kernel data: 4280k
> Loading, please wait...
> [    6.901109] udev[133]: starting version 164
> [    6.998543] bnx2: Broadcom NetXtreme II Gigabit Ethernet Driver bnx2 v2.1.11 (July 20, 2011)
> [    6.999083] xen_map_pirq_gsi: returning irq 16 for gsi 16
> [    6.999361] Already setup the GSI :16
> [    6.999625] bnx2 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> [    7.003132] SCSI subsystem initialized
> [    7.008819] bnx2 0000:02:00.0: eth0: Broadcom NetXtreme II BCM5716 1000Base-T (C0) PCI Express found at mem da000000, IRQ 16, node addr 84:2b:2b:52:88:2a
> [    7.009413] bnx2 0000:02:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
> [    7.009804] Fusion MPT base driver 3.04.20
> [    7.010100] Copyright (c) 1999-2008 LSI Corporation
> [    7.013277] Fusion MPT SAS Host driver 3.04.20
> [    7.013638] xen_map_pirq_gsi: returning irq 16 for gsi 16
> [    7.013644] bnx2 0000:02:00.1: eth1: Broadcom NetXtreme II BCM5716 1000Base-T (C0) PCI Express found at mem dc000000, IRQ 17, node addr 84:2b:2b:52:88:2b
> [    7.014399] Already setup the GSI :16
> [    7.014663] mptsas 0000:03:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> [    7.015118] mptbase: ioc0: Initiating bringup
> [    7.119559] usb 1-1: new high-speed USB device number 2 using ehci_hcd
> [    7.252020] usb 1-1: New USB device found, idVendor=8087, idProduct=0020
> [    7.252296] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [    7.252977] hub 1-1:1.0: USB hub found
> [    7.253415] hub 1-1:1.0: 6 ports detected
> [    7.363572] usb 2-1: new high-speed USB device number 2 using ehci_hcd
> [    7.495891] usb 2-1: New USB device found, idVendor=8087, idProduct=0020
> [    7.496186] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [    7.496834] hub 2-1:1.0: USB hub found
> [    7.497307] hub 2-1:1.0: 8 ports detected
> [    7.571612] usb 1-1.1: new high-speed USB device number 3 using ehci_hcd
> [    7.663901] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514
> [    7.664200] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [    7.664957] hub 1-1.1:1.0: USB hub found
> [    7.665380] hub 1-1.1:1.0: 4 ports detected
> [    7.715557] ioc0: LSISAS1068E B3: Capabilities={Initiator}
> [   24.278976] scsi0 : ioc0: LSISAS1068E B3, FwRev=00192f00h, Ports=1, MaxQ=266, IRQ=16
> [   24.316004] mptsas: ioc0: attaching sata device: fw_channel 0, fw_id 0, phy 0, sas_addr 0x1221000000000000
> [   24.328504] scsi 0:0:0:0: Direct-Access     ATA      SAMSUNG HE253GJ  0001 PQ: 0 ANSI: 5
> [   24.343216] sd 0:0:0:0: [sda] 488281250 512-byte logical blocks: (250 GB/232 GiB)
> [   24.456939] sd 0:0:0:0: [sda] Write Protect is off
> [   24.468646] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> [   24.596708]  sda: sda1 sda2 < sda5 >
> [   24.708503] sd 0:0:0:0: [sda] Attached SCSI disk
> Begin: Loading essential drivers ... done.
> Begin: Running /scripts/init-premount ... done.
> Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
> Begin: Running /scripts/local-premount ... [   25.000780] PM: Starting manual resume from disk
> done.
> [   25.027113] kjournald starting.  Commit interval 5 seconds
> [   25.027187] EXT3-fs (sda1): mounted filesystem with ordered data mode
> Begin: Running /scripts/local-bottom ... done.
> done.
> Begin: Running /scripts/init-bottom ... done.
> 
INIT: version 2.88 booting
> Using makefile-style concurrent boot in runlevel S.
> Starting the hotplug events dispatcher: udevd[   25.989886] udev[352]: starting version 164
> .
> Synthesizing the initial hotplug events...done.
> Waiting for /dev to be fully populated...[   26.364902] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
> [   26.365747] ACPI: Power Button [PWRF]
> done.
> Activating swap...[   26.973701] Adding 6066172k swap on /dev/sda5.  Priority:-1 extents:1 across:6066172k 
> done.
> Checking root file system...fsck from util-linux-ng 2.17.2
> /: clean, 429888/14884864 files, 4781808/59517952 blocks (check in 3 mounts)
> done.
> [   27.107722] EXT3-fs (sda1): using internal journal
> Cleaning up ifupdown....
> [   27.238878] loop: module loaded
> Loading kernel modules...done.
> Setting up networking....
> Activating lvm and md swap...done.
> Checking file systems...fsck from util-linux-ng 2.17.2
> done.
> Mounting local filesystems...done.
> Activating swapfile swap...done.
> Cleaning up temporary files....
> Configuring network interfaces...Internet Systems Consortium DHCP Client 4.1.1-P1
> Copyright 2004-2010 Internet Systems Consortium.
> All rights reserved.
> For info, please visit https://www.isc.org/software/dhcp/
> 
> [   28.189095] bnx2 0000:02:00.0: eth0: using MSIX
> [   28.189494] ADDRCONF(NETDEV_UP): eth0: link is not ready
> Listening on LPF/eth0/84:2b:2b:52:88:2a
> Sending on   LPF/eth0/84:2b:2b:52:88:2a
> Sending on   Socket/fallback
> Setting kernel variables ...done.
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
> [   31.403226] bnx2 0000:02:00.0: eth0: NIC Copper Link is Up, 1000 Mbps full duplex
> [   31.403909] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19
> DHCPOFFER from 10.80.224.1
> DHCPREQUEST on eth0 to 255.255.255.255 port 67
> DHCPACK from 10.80.224.1
> bound to 10.80.227.196 -- renewal in 20979 seconds.
> done.
> Starting portmap daemon....
> Starting NFS common utilities: statd.
> Cleaning up temporary files....
> Setting console screen modes and fonts.
> cannot (un)set powersave mode
> ^[[9;30]^[[14;30]Loading the saved-state of the serial devices... 
> [   74.067406] ttyS0: LSR safety check engaged!
> [   74.069153] ttyS0: LSR safety check engaged!
> /dev/ttyS0 at 0x03f8 (irq = 4) is a 16550A
> /dev/ttyS1 at 0x02f8 (irq = 3) is a 16550A
> 
INIT: Entering runlevel: 2
> Using makefile-style concurrent boot in runlevel 2.
> Starting portmap daemon...Already running..
> Starting NFS common utilities: statd.
> Starting enhanced syslogd: rsyslogd.
> Enabling additional executable binary formats: binfmt-support.
> [   74.660094] BUG: unable to handle kernel paging request at 000012b7
> [   74.660475] IP: [<c1268fea>] is_xen_swiotlb_buffer+0x35/0x80
> [   74.660763] *pdpt = 0000000004d92001 *pde = 0000000000000000 
> [   74.661083] Oops: 0000 [#1] SMP 
> [   74.661398] Modules linked in: binfmt_misc loop button processor thermal_sys hwmon sd_mod mptsas mptscsih mptbase scsi_transport_sas scsi_mod bnx2 [last unloaded: scsi_wait_scan]
> [   74.662605] 
> [   74.662844] Pid: 0, comm: swapper/0 Tainted: G        W    3.2.0 #1 Dell Inc. PowerEdge R310/05XKKK
> [   74.663430] EIP: 0061:[<c1268fea>] EFLAGS: 00010202 CPU: 0
> [   74.663681] EIP is at is_xen_swiotlb_buffer+0x35/0x80
> [   74.663932] EAX: 0000006d EBX: ffffffff ECX: c1777000 EDX: ffffffff
> [   74.664186] ESI: 00000000 EDI: 00000002 EBP: 00000000 ESP: e3c0fec4
> [   74.664463]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
> [   74.664709] Process swapper/0 (pid: 0, ti=e3c0e000 task=c163f060 task.ti=c1638000)
> [   74.665162] Stack:
> [   74.665405]  00000000 00000000 c1269074 ffffffff e3e2a860 00000092 c5760480 efa3a3e0
> [   74.666155]  c1269137 c5b2dec0 c1269146 00000092 00000002 00000000 ed62c57c 00000092
> [   74.666882]  00000002 007d0000 e867d120 0000007c e3c02300 e3c0ff80 c10d5d1c 8080017c
> [   74.667639] Call Trace:
> [   74.667885]  [<c1269074>] ? xen_swiotlb_sync_single+0x3f/0x7b
> [   74.668141]  [<c1269137>] ? xen_swiotlb_sync_single_for_device+0x13/0x13
> [   74.668397]  [<c1269146>] ? xen_swiotlb_sync_single_for_cpu+0xf/0x13
> [   74.668687]  [<ed62c57c>] ? bnx2_rx_int+0xf5/0x3de [bnx2]
> [   74.668938]  [<c10d5d1c>] ? __slab_free+0xcb/0x1da
> [   74.669189]  [<ed62c8b3>] ? bnx2_poll_work+0x4e/0x56 [bnx2]
> [   74.669442]  [<ed62c9a3>] ? bnx2_poll+0x5f/0xe7 [bnx2]
> [   74.669697]  [<c1047202>] ? irq_enter+0x49/0x49
> [   74.669978]  [<c1307451>] ? net_rx_action+0xb8/0x1d6
> [   74.670230]  [<c1047202>] ? irq_enter+0x49/0x49
> [   74.670480]  [<c10472aa>] ? __do_softirq+0xa8/0x168
> [   74.670732]  [<c1047202>] ? irq_enter+0x49/0x49
> [   74.670982]  <IRQ> 
> [   74.671291]  [<c10470d8>] ? irq_exit+0x2f/0x91
> [   74.671545]  [<c12615a2>] ? xen_evtchn_do_upcall+0x1d/0x26
> [   74.671799]  [<c13d0647>] ? xen_do_upcall+0x7/0xc
> [   74.672051]  [<c106007b>] ? update_wall_time+0x20c/0x3ef
> [   74.672301]  [<c10023a7>] ? hypercall_page+0x3a7/0x1000
> [   74.672555]  [<c1006772>] ? xen_safe_halt+0xf/0x1b
> [   74.672834]  [<c10136da>] ? default_idle+0x65/0xb8
> [   74.673089]  [<c100c220>] ? cpu_idle+0x61/0x7d
> [   74.673347]  [<c16767f5>] ? start_kernel+0x34a/0x34d
> [   74.673600]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> [   74.673850] Code: ff ff ff 89 c3 e8 cd e3 d9 ff 39 f0 b8 ff ff ff ff 0f 45 d8 89 d8 c1 e8 0e 0f be 80 e0 24 67 c1 85 c0 78 4d 8b 14 85 c0 24 67 c1 <8b> 82 b8 12 00 00 03 82 b0 12 00 00 39 c3 73 36 a1 e8 88 76 c1 
> [   74.676839] EIP: [<c1268fea>] is_xen_swiotlb_buffer+0x35/0x80 SS:ESP 0069:e3c0fec4
> [   74.677360] CR2: 00000000000012b7
> [   74.677608] ---[ end trace 4eaa2a86a8e2da48 ]---
> [   74.677856] Kernel panic - not syncing: Fatal exception in interrupt
> [   74.678108] Pid: 0, comm: swapper/0 Tainted: G      D W    3.2.0 #1
> [   74.678391] Call Trace:
> [   74.678639]  [<c13cd2f6>] ? panic+0x4d/0x157
> [   74.678889]  [<c100eeec>] ? oops_end+0xad/0xb8
> [   74.679140]  [<c102a7c8>] ? bad_area_nosemaphore+0xa/0xc
> [   74.679393]  [<c102abd5>] ? do_page_fault+0x167/0x31a
> [   74.679676]  [<c1029a28>] ? pvclock_clocksource_read+0xec/0x11e
> [   74.679931]  [<c1029a28>] ? pvclock_clocksource_read+0xec/0x11e
> [   74.680185]  [<c100b842>] ? __spin_time_accum+0x26/0x36
> [   74.680440]  [<c100ba73>] ? __xen_spin_lock+0xb4/0xc8
> [   74.680693]  [<c100673c>] ? xen_force_evtchn_callback+0xc/0x10
> [   74.680977]  [<c102aa6e>] ? vmalloc_sync_all+0xb6/0xb6
> [   74.681229]  [<c13cfde6>] ? error_code+0x5a/0x60
> [   74.681481]  [<c102aa6e>] ? vmalloc_sync_all+0xb6/0xb6
> [   74.681729]  [<c1268fea>] ? is_xen_swiotlb_buffer+0x35/0x80
> [   74.681979]  [<c1269074>] ? xen_swiotlb_sync_single+0x3f/0x7b
> [   74.682232]  [<c1269137>] ? xen_swiotlb_sync_single_for_device+0x13/0x13
> [   74.682519]  [<c1269146>] ? xen_swiotlb_sync_single_for_cpu+0xf/0x13
> [   74.682775]  [<ed62c57c>] ? bnx2_rx_int+0xf5/0x3de [bnx2]
> [   74.683027]  [<c10d5d1c>] ? __slab_free+0xcb/0x1da
> [   74.683278]  [<ed62c8b3>] ? bnx2_poll_work+0x4e/0x56 [bnx2]
> [   74.683536]  [<ed62c9a3>] ? bnx2_poll+0x5f/0xe7 [bnx2]
> [   74.683816]  [<c1047202>] ? irq_enter+0x49/0x49
> [   74.684067]  [<c1307451>] ? net_rx_action+0xb8/0x1d6
> [   74.684317]  [<c1047202>] ? irq_enter+0x49/0x49
> [   74.684569]  [<c10472aa>] ? __do_softirq+0xa8/0x168
> [   74.684820]  [<c1047202>] ? irq_enter+0x49/0x49
> [   74.685066]  <IRQ>  [<c10470d8>] ? irq_exit+0x2f/0x91
> [   74.685384]  [<c12615a2>] ? xen_evtchn_do_upcall+0x1d/0x26
> [   74.685638]  [<c13d0647>] ? xen_do_upcall+0x7/0xc
> [   74.685888]  [<c106007b>] ? update_wall_time+0x20c/0x3ef
> [   74.691270]  [<c10023a7>] ? hypercall_page+0x3a7/0x1000
> [   74.691522]  [<c1006772>] ? xen_safe_halt+0xf/0x1b
> [   74.691770]  [<c10136da>] ? default_idle+0x65/0xb8
> [   74.692053]  [<c100c220>] ? cpu_idle+0x61/0x7d
> [   74.692304]  [<c16767f5>] ? start_kernel+0x34a/0x34d
> [   74.692557]  [<c1678258>] ? xen_start_kernel+0x554/0x55b
> (XEN) Domain 0 crashed: rebooting machine in 5 seconds.
> [disconnect]
> goncalog@eire:~$ xenuse -t dt29\b\b\b\b\b\b\b\b\b\b\b\b\b\b^[[K\aexit
> 
> Script done on Tue 13 Mar 2012 19:06:30 GMT