RE: 2.6.32.27 dom0 + latest xen staging boot failure

["Kay, Allen M" <allen.m.kay@intel.com>]

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Konrad/Stefano,

Getting back to the xen/dom0 boot failure on my Sandybridge SDP I reported a few weeks ago.

I finally got around to narrow down the problem the call to xen_add_extra_mem() in arch/x86/xen/setup.c/xen_memory_setup().  This call increase the top of E820 memory in dom0 beyond what is actually available.

Before xen_add_extra_mem() is called, the last entry of dom0 e820 table is:

    0000000100000000 - 000000016b45a000 (usable)

After xen_add_extra_mem() is called, the last entry of dom0 e820 table becomes:

    0000000100000000 - 000000023a6f4000 (usable)

This pushes the top of RAM beyond what was reported by Xen's e820 table, which is:

(XEN)  0000000100000000 - 00000001de600000 (usable)

AFAICT, the failure is caused by dom0 accessing non-existent physical memory.  The failure went away after I removed the call to xen_add_extra_mem().

Another potential problem I noticed with e820 processing is that there is a discrepancy between how Xen processes e820 and how dom0 does it.  In Xen (arch/x86/setup.c/start_xen()), e820 entries are aligned on L2_PAGETABLE_SHIFT boundary while dom0 e820 code does not.  As a result, one of my e820 entry that is 1 page in size got dropped by Xen but got picked up in dom0.  This does not cause problem in my case but the inconsistency on how memory is used by xen and dom0 can potentially be a problem.

Allen

-----Original Message-----
From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@oracle.com] 
Sent: Friday, January 28, 2011 7:48 AM
To: Kay, Allen M
Cc: xen-devel; Stefano Stabellini
Subject: Re: [Xen-devel] 2.6.32.27 dom0 + latest xen staging boot failure

On Fri, Jan 28, 2011 at 10:28:43AM -0500, Konrad Rzeszutek Wilk wrote:
> On Thu, Jan 27, 2011 at 10:51:42AM -0800, Kay, Allen M wrote:
> > Following are the brief error messages from the serial console log.  I have also attached the full serial console log and dom0 system map.
> > 
> > (XEN) mm.c:802:d0 Bad L1 flags 400000
> 
> On a second look, this is a different issue than I had encountered.
> 
> The 400000 translates to Xen thinking you had PAGE_GNTTAB set, but that
> is not right. Googling for this shows that I had fixed this with a
> Xorg server at some point, but I can't remember the details so that is not
> that useful :-(
> 
> You said it works if you give the domain 1024MB, but I wonder if
> it also works if you disable the IOMMU? What happens then?

Can you also patch your Xen hypervisor with this patch? It will print out the
other 89 entries so we can see what type of values they have.. You might need to
move it a bit as this is for xen-unstable.

diff -r 003acf02d416 xen/arch/x86/mm.c
--- a/xen/arch/x86/mm.c	Thu Jan 20 17:04:06 2011 +0000
+++ b/xen/arch/x86/mm.c	Fri Jan 28 10:46:13 2011 -0500
@@ -1201,11 +1201,12 @@
     return 0;
 
  fail:
-    MEM_LOG("Failure in alloc_l1_table: entry %d", i);
+    MEM_LOG("Failure in alloc_l1_table: entry %d of L1 (mfn: %lx). Other L1 values:", i, pfn);
     while ( i-- > 0 )
-        if ( is_guest_l1_slot(i) )
+        if ( is_guest_l1_slot(i) ) {
+            MEM_LOG("L1[%d] = %lx", i, (unsigned long)l1e_get_intpte(pl1e[i]));
             put_page_from_l1e(pl1e[i], d);
-
+	}
     unmap_domain_page(pl1e);
     return -EINVAL;
 }

> 
> > (XEN) mm.c:1204:d0 Failure in alloc_l1_table: entry 90
> > (XEN) mm.c:2142:d0 Error while validating mfn 1d7e97 (pfn 3d69) for type 1000000
> > 000000000: caf=8000000000000003 taf=1000000000000001
> > (XEN) mm.c:2965:d0 Error while pinning mfn 1d7e97
> > (XEN) traps.c:451:d0 Unhandled invalid opcode fault/trap [#6] on VCPU 0 [ec=0000
> > ]
> > (XEN) domain_crash_sync called from entry.S
> > (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

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  /  \  __/ | | | |__   _|| || |_| |__| | | (__|__   _|__| |_) | | |  __/
 /_/\_\___|_| |_|    |_|(_)_(_)___/   |_|  \___|  |_|    | .__/|_|  \___|
                                                         |_|             
(XEN) Xen version 4.1.0-rc4-pre (root@localdomain) (gcc version 4.3.2 20081105 (
Red Hat 4.3.2-7) (GCC) ) Thu Feb 10 14:05:52 PST 2011
(XEN) Latest ChangeSet: Mon Feb 07 17:02:46 2011 +0000 22886:9e463cb15658
(XEN) Console output is synchronous.
(XEN) Bootloader: GNU GRUB 0.97
(XEN) Command line: console=com1,vga console=com1 com1=115200,8n1 loglvl=all gue
st_loglvl=all iommu=force,verbose cpufreq=none cpuidle=0 sync_console
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN)  Found 0 MBR signatures
(XEN)  Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009bc00 (usable)
(XEN)  000000000009bc00 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 0000000020000000 (usable)
(XEN)  0000000020000000 - 0000000020200000 (reserved)
(XEN)  0000000020200000 - 0000000040000000 (usable)
(XEN)  0000000040000000 - 0000000040200000 (reserved)
(XEN)  0000000040200000 - 000000009acd3000 (usable)
(XEN)  000000009acd3000 - 000000009ad67000 (reserved)
(XEN)  000000009ad67000 - 000000009afe7000 (ACPI NVS)
(XEN)  000000009afe7000 - 000000009afff000 (ACPI data)
(XEN)  000000009afff000 - 000000009b000000 (usable)
(XEN)  000000009b000000 - 000000009fa00000 (reserved)
(XEN)  00000000f8000000 - 00000000fc000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fed10000 - 00000000fed14000 (reserved)
(XEN)  00000000fed18000 - 00000000fed1a000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ff980000 - 00000000ffc00000 (reserved)
(XEN)  00000000ffd80000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 00000001de600000 (usable)
(XEN) amk_start_xen:setting unusable:: addr 9afff000 size 1000 mask 1fffff
(XEN) amk_start_xen:setting unusable:: addr 0 size 9bc00 mask 1fffff
(XEN) amk_start_xen: calling print_e820_memory_map()
(XEN)  0000000000000000 - 000000000009bc00 (unusable)
(XEN)  000000000009bc00 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 0000000020000000 (usable)
(XEN)  0000000020000000 - 0000000020200000 (reserved)
(XEN)  0000000020200000 - 0000000040000000 (usable)
(XEN)  0000000040000000 - 0000000040200000 (reserved)
(XEN)  0000000040200000 - 000000009acd3000 (usable)
(XEN)  000000009acd3000 - 000000009ad67000 (reserved)
(XEN)  000000009ad67000 - 000000009afe7000 (ACPI NVS)
(XEN)  000000009afe7000 - 000000009afff000 (ACPI data)
(XEN)  000000009afff000 - 000000009b000000 (unusable)
(XEN)  000000009b000000 - 000000009fa00000 (reserved)
(XEN)  00000000f8000000 - 00000000fc000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fed10000 - 00000000fed14000 (reserved)
(XEN)  00000000fed18000 - 00000000fed1a000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ff980000 - 00000000ffc00000 (reserved)
(XEN)  00000000ffd80000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 00000001de600000 (usable)
(XEN) ACPI: RSDP 000F0410, 0024 (r2  INTEL)
(XEN) ACPI: XSDT 9AFFDE18, 0074 (r1  INTEL  SNB-CPT  6222004 MSFT    10013)
(XEN) ACPI: FACP 9AF52D98, 00F4 (r4  INTEL  SNB-CPT  6222004 MSFT    10013)
(XEN) ACPI: DSDT 9AF34018, E887 (r2  INTEL  SNB-CPT        0 INTL 20100806)
(XEN) ACPI: FACS 9AF9DF40, 0040
(XEN) ACPI: APIC 9AFFCF18, 0072 (r2  INTEL  SNB-CPT  6222004 MSFT    10013)
(XEN) ACPI: HPET 9AF9FD18, 0038 (r1 A M I   PCHHPET  6222004 AMI.        3)
(XEN) ACPI: SSDT 9AF53018, 10A8 (r1 TrmRef PtidDevc     1000 INTL 20100806)
(XEN) ACPI: SSDT 9AF55C18, 0179 (r1    AMI PerfTune     1000 INTL 20100806)
(XEN) ACPI: BOOT 9AF9FC98, 0028 (r1 INTEL   SNB-CPT  6222004 AMI     10013)
(XEN) ACPI: MCFG 9AF9FC18, 003C (r1 INTEL  SNDYBRDG  6222004 MSFT       97)
(XEN) ACPI: SSDT 9AF51818, 0780 (r1  PmRef  Cpu0Ist     3000 INTL 20100806)
(XEN) ACPI: SSDT 9AF50018, 0996 (r1  PmRef    CpuPm     3000 INTL 20100806)
(XEN) ACPI: DMAR 9AF52C18, 00E8 (r1 INTEL      SNB         1 INTL        1)
(XEN) System RAM: 6029MB (6174540kB)
(XEN) No NUMA configuration found
(XEN) Faking a node at 0000000000000000-00000001de600000
(XEN) Domain heap initialised
(XEN) found SMP MP-table at 000fcb10
(XEN) DMI 2.6 present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x408
(XEN) ACPI: ACPI SLEEP INFO: pm1x_cnt[404,0], pm1x_evt[400,0]
(XEN) ACPI: 32/64X FACS address mismatch in FADT - 9af9df40/0000000000000000, us
ing 32
(XEN) ACPI:                  wakeup_vec[9af9df4c], vec_size[20]
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 6:10 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
(XEN) Processor #2 6:10 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x04] enabled)
(XEN) Processor #4 6:10 APIC version 21
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x06] enabled)
(XEN) Processor #6 6:10 APIC version 21
(XEN) ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
(XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 2, 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) [VT-D]dmar.c:702: Host address width 36
(XEN) [VT-D]dmar.c:717: found ACPI_DMAR_DRHD:
(XEN) [VT-D]dmar.c:413:   dmaru->address = fed90000
(XEN) [VT-D]iommu.c:1111: drhd->address = fed90000 iommu->reg = ffff82c3fff57000
(XEN) [VT-D]iommu.c:1113: cap = c0000020e60262 ecap = f0101a
(XEN) [VT-D]dmar.c:341:   endpoint: 0:2.0
(XEN) [VT-D]dmar.c:717: found ACPI_DMAR_DRHD:
(XEN) [VT-D]dmar.c:413:   dmaru->address = fed91000
(XEN) [VT-D]iommu.c:1111: drhd->address = fed91000 iommu->reg = ffff82c3fff56000
(XEN) [VT-D]iommu.c:1113: cap = c9008020660262 ecap = f0105a
(XEN) [VT-D]dmar.c:356:   IOAPIC: f0:1f.0
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.0
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.1
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.2
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.3
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.4
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.5
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.6
(XEN) [VT-D]dmar.c:335:   MSI HPET: f0:f.7
(XEN) [VT-D]dmar.c:427:   flags: INCLUDE_ALL
(XEN) [VT-D]dmar.c:722: found ACPI_DMAR_RMRR:
(XEN) [VT-D]dmar.c:341:   endpoint: 0:1d.0
(XEN) [VT-D]dmar.c:341:   endpoint: 0:1a.0
(XEN) [VT-D]dmar.c:594:   RMRR region: base_addr 9ad4d000 end_address 9ad63fff
(XEN) [VT-D]dmar.c:722: found ACPI_DMAR_RMRR:
(XEN) [VT-D]dmar.c:341:   endpoint: 0:2.0
(XEN) [VT-D]dmar.c:594:   RMRR region: base_addr 9b800000 end_address 9f9fffff
(XEN) PCI: MCFG configuration 0: base f8000000 segment 0 buses 0 - 63
(XEN) PCI: MCFG area at f8000000 reserved in E820
(XEN) Table is not found!
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) IRQ limits: 24 GSI, 760 MSI/MSI-X
(XEN) Switched to APIC driver x2apic_cluster.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 3093.065 MHz processor.
(XEN) Initing memory sharing.
(XEN) mce_intel.c:1162: MCA Capability: BCAST 1 SER 0 CMCI 1 firstbank 0 extende
d MCE MSR 0
(XEN) Intel machine check reporting enabled
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using old ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) TSC deadline timer enabled
(XEN) Platform timer is 14.318MHz HPET
ÿ(XEN) Allocated console ring of 32 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)  - Unrestricted Guest
(XEN) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Brought up 4 CPUs
(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=0x6c9000
(XEN) elf_parse_binary: phdr: paddr=0x16c9000 memsz=0xe45e0
(XEN) elf_parse_binary: phdr: paddr=0x17ae000 memsz=0x888
(XEN) elf_parse_binary: phdr: paddr=0x17af000 memsz=0x1d67d8
(XEN) elf_parse_binary: phdr: paddr=0x1986000 memsz=0xdc9000
(XEN) elf_parse_binary: memory: 0x1000000 -> 0x274f000
(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 = 0xffffffff80000000
(XEN) elf_xen_parse_note: ENTRY = 0xffffffff81986200
(XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xffffffff81009000
(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 = 0xffff800000000000
(XEN) elf_xen_parse_note: PADDR_OFFSET = 0x0
(XEN) elf_xen_addr_calc_check: addresses:
(XEN)     virt_base        = 0xffffffff80000000
(XEN)     elf_paddr_offset = 0x0
(XEN)     virt_offset      = 0xffffffff80000000
(XEN)     virt_kstart      = 0xffffffff81000000
(XEN)     virt_kend        = 0xffffffff8274f000
(XEN)     virt_entry       = 0xffffffff81986200
(XEN)     p2m_base         = 0xffffffffffffffff
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x274f000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   00000001d4000000->00000001d8000000 (1469719 pages to be al
located)
(XEN)  Init. ramdisk: 00000001ddebd000->00000001de5ff400
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff8274f000
(XEN)  Init. ramdisk: ffffffff8274f000->ffffffff82e91400
(XEN)  Phys-Mach map: ffffffff82e92000->ffffffff839ec2d0
(XEN)  Start info:    ffffffff839ed000->ffffffff839ed4b4
(XEN)  Page tables:   ffffffff839ee000->ffffffff83a0f000
(XEN)  Boot stack:    ffffffff83a0f000->ffffffff83a10000
(XEN)  TOTAL:         ffffffff80000000->ffffffff83c00000
(XEN)  ENTRY ADDRESS: ffffffff81986200
(XEN) Dom0 has maximum 4 VCPUs
(XEN) elf_load_binary: phdr 0 at 0xffffffff81000000 -> 0xffffffff816c9000
(XEN) elf_load_binary: phdr 1 at 0xffffffff816c9000 -> 0xffffffff817ad5e0
(XEN) elf_load_binary: phdr 2 at 0xffffffff817ae000 -> 0xffffffff817ae888
(XEN) elf_load_binary: phdr 3 at 0xffffffff817af000 -> 0xffffffff819857d8
(XEN) elf_load_binary: phdr 4 at 0xffffffff81986000 -> 0xffffffff81b04000
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:0.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:2.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:16.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:16.3
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:19.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:1a.0
(XEN) [VT-D]iommu.c:1363: d0:PCIe: map bdf = 0:1b.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:1d.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:1f.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:1f.2
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 0:1f.3
(XEN) [VT-D]iommu.c:1363: d0:PCIe: map bdf = 1:0.0
(XEN) [VT-D]iommu.c:1363: d0:PCIe: map bdf = 1:0.1
(XEN) [VT-D]iommu.c:1363: d0:PCIe: map bdf = 3:0.0
(XEN) [VT-D]iommu.c:1363: d0:PCIe: map bdf = 4:0.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 6:0.0
(XEN) [VT-D]iommu.c:1373: d0:PCI: map bdf = 7:1.0
(XEN) [VT-D]iommu.c:718: iommu_enable_translation: iommu->reg = ffff82c3fff57000
(XEN) [VT-D]iommu.c:718: iommu_enable_translation: iommu->reg = ffff82c3fff56000
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XEN) **********************************************
(XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS
(XEN) ******* This option is intended to aid debugging of Xen by ensuring
(XEN) ******* that all output is synchronously delivered on the serial line.
(XEN) ******* However it can introduce SIGNIFICANT latencies and affect
(XEN) ******* timekeeping. It is NOT recommended for production use!
(XEN) **********************************************
(XEN) 3... 2... 1... 
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen
)
(XEN) Freed 216kB 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 2.6.32.27 (root@akay-lrb) (gcc version 4.3.2 20081105 (Red Hat 4.3
.2-7) (GCC) ) #6 SMP Thu Feb 10 15:06:42 PST 2011
Command line: ro root=UUID=a2b8a401-3055-4565-87ae-cb9b3528955a console=tty0 con
sole=ttyS0,115200,8n1 earlyprintk=xen loglevel=7
KERNEL supported cpus:
  Intel GenuineIntel
  AMD AuthenticAMD
  Centaur CentaurHauls
amk_xen_memory_setup: 1
amk_xen_memory_setup:1: addr 100000 end 100000 size 1ff00000
amk_xen_memory_setup:2: addr 100000 end 20000000 size 1ff00000
amk_xen_memory_setup:1: addr 20200000 end 20200000 size 1fe00000
amk_xen_memory_setup:2: addr 20200000 end 40000000 size 1fe00000
amk_xen_memory_setup:1: addr 40200000 end 40200000 size 5aad3000
amk_xen_memory_setup:2: addr 40200000 end 9acd3000 size 5aad3000
amk_xen_memory_setup:1: addr 100000000 end 100000000 size de600000
amk_xen_memory_setup:2: addr 100000000 end 1de600000 size de600000
 amk1: 0000000000000000 - 000000000009bc00 (unusable)
 amk1: 000000000009bc00 - 00000000000a0000 (reserved)
 amk1: 00000000000e0000 - 0000000000100000 (reserved)
 amk1: 0000000000100000 - 0000000020000000 (usable)
 amk1: 0000000020000000 - 0000000020200000 (reserved)
 amk1: 0000000020200000 - 0000000040000000 (usable)
 amk1: 0000000040000000 - 0000000040200000 (reserved)
 amk1: 0000000040200000 - 000000009acd3000 (usable)
 amk1: 000000009acd3000 - 000000009ad67000 (reserved)
 amk1: 000000009ad67000 - 000000009afe7000 (ACPI NVS)
 amk1: 000000009afe7000 - 000000009afff000 (ACPI data)
 amk1: 000000009afff000 - 000000009b000000 (unusable)
 amk1: 000000009b000000 - 000000009fa00000 (reserved)
 amk1: 00000000f8000000 - 00000000fc000000 (reserved)
 amk1: 00000000fec00000 - 00000000fec01000 (reserved)
 amk1: 00000000fed10000 - 00000000fed14000 (reserved)
 amk1: 00000000fed18000 - 00000000fed1a000 (reserved)
 amk1: 00000000fed1c000 - 00000000fed20000 (reserved)
 amk1: 00000000fee00000 - 00000000fee01000 (reserved)
 amk1: 00000000ff980000 - 00000000ffc00000 (reserved)
 amk1: 00000000ffd80000 - 0000000100000000 (reserved)
 amk1: 0000000100000000 - 000000016b45a000 (usable)

 amk2: 0000000000000000 - 000000000009bc00 (unusable)
 amk2: 000000000009bc00 - 0000000000100000 (reserved)
 amk2: 0000000000100000 - 0000000020000000 (usable)
 amk2: 0000000020000000 - 0000000020200000 (reserved)
 amk2: 0000000020200000 - 0000000040000000 (usable)
 amk2: 0000000040000000 - 0000000040200000 (reserved)
 amk2: 0000000040200000 - 000000009acd3000 (usable)
 amk2: 000000009acd3000 - 000000009ad67000 (reserved)
 amk2: 000000009ad67000 - 000000009afe7000 (ACPI NVS)
 amk2: 000000009afe7000 - 000000009afff000 (ACPI data)
 amk2: 000000009afff000 - 000000009b000000 (unusable)
 amk2: 000000009b000000 - 000000009fa00000 (reserved)
 amk2: 00000000f8000000 - 00000000fc000000 (reserved)
 amk2: 00000000fec00000 - 00000000fec01000 (reserved)
 amk2: 00000000fed10000 - 00000000fed14000 (reserved)
 amk2: 00000000fed18000 - 00000000fed1a000 (reserved)
 amk2: 00000000fed1c000 - 00000000fed20000 (reserved)
 amk2: 00000000fee00000 - 00000000fee01000 (reserved)
 amk2: 00000000ff980000 - 00000000ffc00000 (reserved)
 amk2: 00000000ffd80000 - 0000000100000000 (reserved)
 amk2: 0000000100000000 - 000000016b45a000 (usable)
xen_release_chunk: looking at area pfn 9fa00-f8000: 361984 pages freed
xen_release_chunk: looking at area pfn fc000-fec00: 11264 pages freed
xen_release_chunk: looking at area pfn fec01-fed10: 271 pages freed
xen_release_chunk: looking at area pfn fed14-fed18: 4 pages freed
xen_release_chunk: looking at area pfn fed1a-fed1c: 2 pages freed
xen_release_chunk: looking at area pfn fed20-fee00: 224 pages freed
xen_release_chunk: looking at area pfn fee01-ff980: 2943 pages freed
xen_release_chunk: looking at area pfn ffc00-ffd80: 384 pages freed
released 377076 pages of unused memory
 amk3: 0000000000000000 - 000000000009bc00 (unusable)
 amk3: 000000000009bc00 - 0000000000100000 (reserved)
 amk3: 0000000000100000 - 0000000020000000 (usable)
 amk3: 0000000020000000 - 0000000020200000 (reserved)
 amk3: 0000000020200000 - 0000000040000000 (usable)
 amk3: 0000000040000000 - 0000000040200000 (reserved)
 amk3: 0000000040200000 - 000000009acd3000 (usable)
 amk3: 000000009acd3000 - 000000009ad67000 (reserved)
 amk3: 000000009ad67000 - 000000009afe7000 (ACPI NVS)
 amk3: 000000009afe7000 - 000000009afff000 (ACPI data)
 amk3: 000000009afff000 - 000000009b000000 (unusable)
 amk3: 000000009b000000 - 000000009fa00000 (reserved)
 amk3: 00000000f8000000 - 00000000fc000000 (reserved)
 amk3: 00000000fec00000 - 00000000fec01000 (reserved)
 amk3: 00000000fed10000 - 00000000fed14000 (reserved)
 amk3: 00000000fed18000 - 00000000fed1a000 (reserved)
 amk3: 00000000fed1c000 - 00000000fed20000 (reserved)
 amk3: 00000000fee00000 - 00000000fee01000 (reserved)
 amk3: 00000000ff980000 - 00000000ffc00000 (reserved)
 amk3: 00000000ffd80000 - 0000000100000000 (reserved)
 amk3: 0000000100000000 - 000000016b45a000 (usable)

 amk4: 0000000000000000 - 000000000009bc00 (unusable)
 amk4: 000000000009bc00 - 0000000000100000 (reserved)
 amk4: 0000000000100000 - 0000000020000000 (usable)
 amk4: 0000000020000000 - 0000000020200000 (reserved)
 amk4: 0000000020200000 - 0000000040000000 (usable)
 amk4: 0000000040000000 - 0000000040200000 (reserved)
 amk4: 0000000040200000 - 000000009acd3000 (usable)
 amk4: 000000009acd3000 - 000000009ad67000 (reserved)
 amk4: 000000009ad67000 - 000000009afe7000 (ACPI NVS)
 amk4: 000000009afe7000 - 000000009afff000 (ACPI data)
 amk4: 000000009afff000 - 000000009b000000 (unusable)
 amk4: 000000009b000000 - 000000009fa00000 (reserved)
 amk4: 00000000f8000000 - 00000000fc000000 (reserved)
 amk4: 00000000fec00000 - 00000000fec01000 (reserved)
 amk4: 00000000fed10000 - 00000000fed14000 (reserved)
 amk4: 00000000fed18000 - 00000000fed1a000 (reserved)
 amk4: 00000000fed1c000 - 00000000fed20000 (reserved)
 amk4: 00000000fee00000 - 00000000fee01000 (reserved)
 amk4: 00000000ff980000 - 00000000ffc00000 (reserved)
 amk4: 00000000ffd80000 - 0000000100000000 (reserved)
 amk4: 0000000100000000 - 000000023a6f4000 (usable)
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 000000000009bc00 (unusable)
 Xen: 000000000009bc00 - 0000000000100000 (reserved)
 Xen: 0000000000100000 - 0000000020000000 (usable)
 Xen: 0000000020000000 - 0000000020200000 (reserved)
 Xen: 0000000020200000 - 0000000040000000 (usable)
 Xen: 0000000040000000 - 0000000040200000 (reserved)
 Xen: 0000000040200000 - 000000009acd3000 (usable)
 Xen: 000000009acd3000 - 000000009ad67000 (reserved)
 Xen: 000000009ad67000 - 000000009afe7000 (ACPI NVS)
 Xen: 000000009afe7000 - 000000009afff000 (ACPI data)
 Xen: 000000009afff000 - 000000009b000000 (unusable)
 Xen: 000000009b000000 - 000000009fa00000 (reserved)
 Xen: 00000000f8000000 - 00000000fc000000 (reserved)
 Xen: 00000000fec00000 - 00000000fec01000 (reserved)
 Xen: 00000000fed10000 - 00000000fed14000 (reserved)
 Xen: 00000000fed18000 - 00000000fed1a000 (reserved)
 Xen: 00000000fed1c000 - 00000000fed20000 (reserved)
 Xen: 00000000fee00000 - 00000000fee01000 (reserved)
 Xen: 00000000ff980000 - 00000000ffc00000 (reserved)
 Xen: 00000000ffd80000 - 0000000100000000 (reserved)
 Xen: 0000000100000000 - 000000023a6f4000 (usable)
bootconsole [xenboot0] enabled
DMI 2.6 present.
AMI BIOS detected: BIOS may corrupt low RAM, working around it.
last_pfn = 0x23a6f4 max_arch_pfn = 0x400000000
x86 PAT enabled: cpu 0, old 0x50100070406, new 0x7010600070106
x2apic enabled by BIOS, switching to x2apic ops
last_pfn = 0x9acd3 max_arch_pfn = 0x400000000
amk_setup_arch: initial memory mapped : 0 - 043ff000
amk_setup_arch:1: max_low_pfn 9acd3 max_pfn 23a6f4
init_memory_mapping: 0000000000000000-000000009acd3000
amk_setup_arch:2: max_low_pfn 9acd3 max_pfn 23a6f4
init_memory_mapping: 0000000100000000-000000023a6f4000
(XEN) mm.c:802:d0 Bad L1 flags 400000
(XEN) mm.c:1204:d0 Failure in alloc_l1_table: entry 90 of L1 (mfn: 1d7e95). Othe
r L1 values:
(XEN) mm.c:1209:d0 L1[89] = 80100001ddeb8067
(XEN) mm.c:1209:d0 L1[88] = 80100001ddeb9067
(XEN) mm.c:1209:d0 L1[87] = 80100001ddeba067
(XEN) mm.c:1209:d0 L1[86] = 80100001ddebb067
(XEN) mm.c:1209:d0 L1[85] = 80100001ddebc067
(XEN) mm.c:1209:d0 L1[84] = 80100001ddeb4067
(XEN) mm.c:1209:d0 L1[83] = 80100001ddeb5067
(XEN) mm.c:1209:d0 L1[82] = 80100001ddeb6067
(XEN) mm.c:1209:d0 L1[81] = 80100001ddeb7067
(XEN) mm.c:1209:d0 L1[80] = 80100001ddeb0067
(XEN) mm.c:1209:d0 L1[79] = 80100001ddeb1067
(XEN) mm.c:1209:d0 L1[78] = 80100001ddeb2067
(XEN) mm.c:1209:d0 L1[77] = 80100001ddeb3067
(XEN) mm.c:1209:d0 L1[76] = 80100001ddea0067
(XEN) mm.c:1209:d0 L1[75] = 80100001ddea1067
(XEN) mm.c:1209:d0 L1[74] = 80100001ddea2067
(XEN) mm.c:1209:d0 L1[73] = 80100001ddea3067
(XEN) mm.c:1209:d0 L1[72] = 80100001ddea4067
(XEN) mm.c:1209:d0 L1[71] = 80100001ddea5067
(XEN) mm.c:1209:d0 L1[70] = 80100001ddea6067
(XEN) mm.c:1209:d0 L1[69] = 80100001ddea7067
(XEN) mm.c:1209:d0 L1[68] = 80100001ddea8067
(XEN) mm.c:1209:d0 L1[67] = 80100001ddea9067
(XEN) mm.c:1209:d0 L1[66] = 80100001ddeaa067
(XEN) mm.c:1209:d0 L1[65] = 80100001ddeab067
(XEN) mm.c:1209:d0 L1[64] = 80100001ddeac067
(XEN) mm.c:1209:d0 L1[63] = 80100001ddead067
(XEN) mm.c:1209:d0 L1[62] = 80100001ddeae067
(XEN) mm.c:1209:d0 L1[61] = 80100001ddeaf067
(XEN) mm.c:1209:d0 L1[60] = 80100001dde80067
(XEN) mm.c:1209:d0 L1[59] = 80100001dde81067
(XEN) mm.c:1209:d0 L1[58] = 80100001dde82067
(XEN) mm.c:1209:d0 L1[57] = 80100001dde83067
(XEN) mm.c:1209:d0 L1[56] = 80100001dde84067
(XEN) mm.c:1209:d0 L1[55] = 80100001dde85067
(XEN) mm.c:1209:d0 L1[54] = 80100001dde86067
(XEN) mm.c:1209:d0 L1[53] = 80100001dde87067
(XEN) mm.c:1209:d0 L1[52] = 80100001dde88067
(XEN) mm.c:1209:d0 L1[51] = 80100001dde89067
(XEN) mm.c:1209:d0 L1[50] = 80100001dde8a067
(XEN) mm.c:1209:d0 L1[49] = 80100001dde8b067
(XEN) mm.c:1209:d0 L1[48] = 80100001dde8c067
(XEN) mm.c:1209:d0 L1[47] = 80100001dde8d067
(XEN) mm.c:1209:d0 L1[46] = 80100001dde8e067
(XEN) mm.c:1209:d0 L1[45] = 80100001dde8f067
(XEN) mm.c:1209:d0 L1[44] = 80100001dde90067
(XEN) mm.c:1209:d0 L1[43] = 80100001dde91067
(XEN) mm.c:1209:d0 L1[42] = 80100001dde92067
(XEN) mm.c:1209:d0 L1[41] = 80100001dde93067
(XEN) mm.c:1209:d0 L1[40] = 80100001dde94067
(XEN) mm.c:1209:d0 L1[39] = 80100001dde95067
(XEN) mm.c:1209:d0 L1[38] = 80100001dde96067
(XEN) mm.c:1209:d0 L1[37] = 80100001dde97067
(XEN) mm.c:1209:d0 L1[36] = 80100001dde98067
(XEN) mm.c:1209:d0 L1[35] = 80100001dde99067
(XEN) mm.c:1209:d0 L1[34] = 80100001dde9a067
(XEN) mm.c:1209:d0 L1[33] = 80100001dde9b067
(XEN) mm.c:1209:d0 L1[32] = 80100001dde9c067
(XEN) mm.c:1209:d0 L1[31] = 80100001dde9d067
(XEN) mm.c:1209:d0 L1[30] = 80100001dde9e067
(XEN) mm.c:1209:d0 L1[29] = 80100001dde9f067
(XEN) mm.c:1209:d0 L1[28] = 80100001ddc00067
(XEN) mm.c:1209:d0 L1[27] = 80100001ddc01067
(XEN) mm.c:1209:d0 L1[26] = 80100001ddc02067
(XEN) mm.c:1209:d0 L1[25] = 80100001ddc03067
(XEN) mm.c:1209:d0 L1[24] = 80100001ddc04067
(XEN) mm.c:1209:d0 L1[23] = 80100001ddc05067
(XEN) mm.c:1209:d0 L1[22] = 80100001ddc06067
(XEN) mm.c:1209:d0 L1[21] = 80100001ddc07067
(XEN) mm.c:1209:d0 L1[20] = 80100001ddc08067
(XEN) mm.c:1209:d0 L1[19] = 80100001ddc09067
(XEN) mm.c:1209:d0 L1[18] = 80100001ddc0a067
(XEN) mm.c:1209:d0 L1[17] = 80100001ddc0b067
(XEN) mm.c:1209:d0 L1[16] = 80100001ddc0c067
(XEN) mm.c:1209:d0 L1[15] = 80100001ddc0d067
(XEN) mm.c:1209:d0 L1[14] = 80100001ddc0e067
(XEN) mm.c:1209:d0 L1[13] = 80100001ddc0f067
(XEN) mm.c:1209:d0 L1[12] = 80100001ddc10067
(XEN) mm.c:1209:d0 L1[11] = 80100001ddc11067
(XEN) mm.c:1209:d0 L1[10] = 80100001ddc12067
(XEN) mm.c:1209:d0 L1[9] = 80100001ddc13067
(XEN) mm.c:1209:d0 L1[8] = 80100001ddc14067
(XEN) mm.c:1209:d0 L1[7] = 80100001ddc15067
(XEN) mm.c:1209:d0 L1[6] = 80100001ddc16067
(XEN) mm.c:1209:d0 L1[5] = 80100001ddc17067
(XEN) mm.c:1209:d0 L1[4] = 80100001ddc18067
(XEN) mm.c:1209:d0 L1[3] = 80100001ddc19067
(XEN) mm.c:1209:d0 L1[2] = 80100001ddc1a067
(XEN) mm.c:1209:d0 L1[1] = 80100001ddc1b067
(XEN) mm.c:1209:d0 L1[0] = 80100001ddc1c067
(XEN) mm.c:2146:d0 Error while validating mfn 1d7e95 (pfn 3d6b) for type 1000000
000000000: caf=8000000000000003 taf=1000000000000001
(XEN) mm.c:2969:d0 Error while pinning mfn 1d7e95
(XEN) traps.c:451:d0 Unhandled invalid opcode fault/trap [#6] on VCPU 0 [ec=0000
]
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 0 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-4.1.0-rc4-pre  x86_64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) RIP:    e033:[<ffffffff8100cae0>]
(XEN) RFLAGS: 0000000000000282   EM: 1   CONTEXT: pv guest
(XEN) rax: 00000000ffffffea   rbx: 0000000000003d6b   rcx: 000000000000001e
(XEN) rdx: 00000000deadbeef   rsi: 00000000deadbeef   rdi: 00000000deadbeef
(XEN) rbp: ffffffff816cbbd8   rsp: ffffffff816cbb78   r8:  0000000000000b58
(XEN) r9:  00003ffffffff000   r10: 00000000deadbeef   r11: ffffffff816cbb98
(XEN) r12: 8000000000000163   r13: ffffffffff400ad0   r14: 000000016b400000
(XEN) r15: 000000016b600000   cr0: 000000008005003b   cr4: 00000000000026f0
(XEN) cr3: 00000001d5001000   cr2: 0000000000000000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e02b   cs: e033
(XEN) Guest stack trace from rsp=ffffffff816cbb78:
(XEN)    000000000000001e ffffffff816cbb98 ffffffff8100cae0 000000010000e030
(XEN)    0000000000010082 ffffffff816cbbb8 000000000000e02b ffffffff8100cadc
(XEN)    0000000100000000 00000000001d7e95 00000001816cbbf8 0000000000003d6b
(XEN)    ffffffff816cbbf8 ffffffff8198b5f3 ffff880000000000 ffff880003d6b000
(XEN)    ffffffff816cbca8 ffffffff819c5918 ffffffff8100d25a 00000001d72cc067
(XEN)    00000001d5002020 80000000000001e3 0000000000000000 0000000000000001
(XEN)    000000023a6f4000 ffffffffff400000 0000000000000000 ffffffff816cbd08
(XEN)    0000000140000000 8000000000000163 000000000000015a ffffffff8199e6ef
(XEN)    0000000003d6b000 ffffffffff400000 8000000000000163 ffff880001002028
(XEN)    0000000140000000 0000000140000000 ffffffff816cbd38 ffffffff819c5b81
(XEN)    0000003781b78e20 ffffffff81b78a20 0000000000000000 0000000000000000
(XEN)    000000023a6f4000 ffff880001002000 0000000000000000 0000000000000004
(XEN)    0000000000000001 000000000000000f 0000000003c10000 000000023a6f4000
(XEN)    0000000000000001 ffffffff81001880 ffff880100000000 000000023a6f4000
(XEN)    ffffffff816cbda8 ffffffff819c5d1a ffffffff816cbda8 ffffffff814885b4
(XEN)    0000000000000000 ffff88023a6f4000 ffff88023a6f4000 0000000000000000
(XEN)    0000000000000000 ffffffff816cbe10 0000000000000001 0000000000000000
(XEN)    000000023a6f4000 ffffffff816576f9 ffffffff816cbea8 ffffffff81474e50
(XEN)    0000003600000000 0007010600070106 0000000000000000 0000000100000000
(XEN)    0000000000000000 bf658bb3199e3b3e ffffffff81b9be10 000000010009acd3
(XEN) Domain 0 crashed: rebooting machine in 5 seconds.
(XEN) Resetting with ACPI MEMORY or I/O RESET_REG.

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