RE: [edk2] Corrupted EFI region

From: Kinney, Michael D
Date: Mon Aug 05 2013 - 13:01:06 EST

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Boris,

A memory map entry with zero size does not look right to me.

The memory map passed into SetVirtualAddressMap() must contain the exact same set of memory map entries that existed when ExitBootServices() was called with a return result of EFI_SUCCESS.

When you are showing comparisons of memory maps, are you showing the ExitBootServices() one and the SeVirtualAddressMap() one? If the memory maps are not identical, then somehow the memory map is being modified, and we need to figure that out.

If the ExitBootServices() memory map has the zero sized entry, then we need to see how GetMemoryMap() is returning a zero sized entry. It is not clear that a zero sized entry would actually break anything, but it is a good idea to root cause that issue and make sure those types of memory map entries are not pass from the FW to the OS.

Thanks,

Mike

-----Original Message-----
From: Borislav Petkov [mailto:bp@xxxxxxxxx]
Sent: Monday, August 05, 2013 9:48 AM
To: Laszlo Ersek
Cc: linux-efi@xxxxxxxxxxxxxxx; Gleb Natapov; edk2-devel@xxxxxxxxxxxxxxxxxxxxx; lkml; David Woodhouse
Subject: Re: [edk2] Corrupted EFI region

On Mon, Aug 05, 2013 at 06:41:20PM +0200, Laszlo Ersek wrote:
> I didn't realize the timestamps survive kexec. (As far as I remember
> the kernels I played with kexec on didn't have the automatic
> timestamps yet in dmesg, but I might have messed up just as well...)

No, no, no, kexec is not involved at all.

Here's the whole dmesg up until efi_enter_virtual_map. When we have entered
efi_enter_virtual_mode, the region has changed from

[ 0.000000] efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0cc000) (0MB)

to

[ 0.023004] efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0ad000) (0MB)

And yes, I still need to audit whether the kernel actually does that
change. I'm still looking...

[2J[01;01H[=3h[2J[01;01H[2J[01;01H[=3h[2J[01;01H[2J[01;01H[=3h[2J[01;01H[2J[01;01H[=3h[2J[01;01H[2J[01;01H[=3h[2J[01;01H[2J[01;01H[=3h[2J[01;01H[0m[35m[40m[2J[01;01H[=3h[2J[01;01H[0m[37m[40m[2J[01;01Hearly console in decompress_kernel

Decompressing Linux... Parsing ELF... done.
Booting the kernel.
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.10.0-rc7+ (boris@nazgul) (gcc version 4.7.3 (Debian 4.7.3-4) ) #9 SMP PREEMPT Mon Aug 5 16:27:00 CEST 2013
[ 0.000000] Command line: root=/dev/sda1 debug ignore_loglevel log_buf_len=10M earlyprintk=ttyS0,115200 console=ttyS0,115200 console=tty0
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007e667fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007e668000-0x000000007e691fff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007e692000-0x000000007fb11fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007fb12000-0x000000007fb69fff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007fb6a000-0x000000007fb71fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x000000007fb72000-0x000000007fb75fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000007fb76000-0x000000007ffdffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007ffe0000-0x000000007fffffff] reserved
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] bootconsole [earlyser0] enabled
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] efi: EFI v2.31 by EDK II
[ 0.000000] efi: ACPI=0x7fb71000 ACPI 2.0=0x7fb71014
[ 0.000000] efi: mem00: type=7, attr=0xf, range=[0x0000000000000000-0x000000000009f000) (0MB)
[ 0.000000] efi: mem01: type=2, attr=0xf, range=[0x000000000009f000-0x00000000000a0000) (0MB)
[ 0.000000] efi: mem02: type=7, attr=0xf, range=[0x0000000000100000-0x0000000000800000) (7MB)
[ 0.000000] efi: mem03: type=4, attr=0xf, range=[0x0000000000800000-0x0000000001000000) (8MB)
[ 0.000000] efi: mem04: type=7, attr=0xf, range=[0x0000000001000000-0x0000000002000000) (16MB)
[ 0.000000] efi: mem05: type=2, attr=0xf, range=[0x0000000002000000-0x00000000036e3000) (22MB)
[ 0.000000] efi: mem06: type=7, attr=0xf, range=[0x00000000036e3000-0x000000003fffb000) (969MB)
[ 0.000000] efi: mem07: type=2, attr=0xf, range=[0x000000003fffb000-0x0000000040000000) (0MB)
[ 0.000000] efi: mem08: type=7, attr=0xf, range=[0x0000000040000000-0x000000007c000000) (960MB)
[ 0.000000] efi: mem09: type=4, attr=0xf, range=[0x000000007c000000-0x000000007c020000) (0MB)
[ 0.000000] efi: mem10: type=7, attr=0xf, range=[0x000000007c020000-0x000000007e0ad000) (32MB)
[ 0.000000] efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0cc000) (0MB)
[ 0.000000] efi: mem12: type=7, attr=0xf, range=[0x000000007e0cc000-0x000000007e0cd000) (0MB)
[ 0.000000] efi: mem13: type=4, attr=0xf, range=[0x000000007e0cd000-0x000000007e55d000) (4MB)
[ 0.000000] efi: mem14: type=3, attr=0xf, range=[0x000000007e55d000-0x000000007e59c000) (0MB)
[ 0.000000] efi: mem15: type=4, attr=0xf, range=[0x000000007e59c000-0x000000007e5a0000) (0MB)
[ 0.000000] efi: mem16: type=3, attr=0xf, range=[0x000000007e5a0000-0x000000007e668000) (0MB)
[ 0.000000] efi: mem17: type=5, attr=0x800000000000000f, range=[0x000000007e668000-0x000000007e67d000) (0MB)
[ 0.000000] efi: mem18: type=6, attr=0x800000000000000f, range=[0x000000007e67d000-0x000000007e692000) (0MB)
[ 0.000000] efi: mem19: type=4, attr=0xf, range=[0x000000007e692000-0x000000007f992000) (19MB)
[ 0.000000] efi: mem20: type=7, attr=0xf, range=[0x000000007f992000-0x000000007f994000) (0MB)
[ 0.000000] efi: mem21: type=3, attr=0xf, range=[0x000000007f994000-0x000000007fb12000) (1MB)
[ 0.000000] efi: mem22: type=5, attr=0x800000000000000f, range=[0x000000007fb12000-0x000000007fb42000) (0MB)
[ 0.000000] efi: mem23: type=6, attr=0x800000000000000f, range=[0x000000007fb42000-0x000000007fb66000) (0MB)
[ 0.000000] efi: mem24: type=0, attr=0xf, range=[0x000000007fb66000-0x000000007fb6a000) (0MB)
[ 0.000000] efi: mem25: type=9, attr=0xf, range=[0x000000007fb6a000-0x000000007fb72000) (0MB)
[ 0.000000] efi: mem26: type=10, attr=0xf, range=[0x000000007fb72000-0x000000007fb76000) (0MB)
[ 0.000000] efi: mem27: type=4, attr=0xf, range=[0x000000007fb76000-0x000000007ffe0000) (4MB)
[ 0.000000] efi: mem28: type=6, attr=0x800000000000000f, range=[0x000000007ffe0000-0x0000000080000000) (0MB)
[ 0.000000] DMI not present or invalid.
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] No AGP bridge found
[ 0.000000] e820: last_pfn = 0x7ffe0 max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: uncachable
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-FFFFF uncachable
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 0000000000 mask FF80000000 write-back
[ 0.000000] 1 disabled
[ 0.000000] 2 disabled
[ 0.000000] 3 disabled
[ 0.000000] 4 disabled
[ 0.000000] 5 disabled
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
[ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106
[ 0.000000] efi: efi_reserve_boot_services: start: 0x800000, size: 0x800000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7c000000, size: 0x20000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e0cd000, size: 0x490000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e55d000, size: 0x3f000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e59c000, size: 0x4000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e5a0000, size: 0xc8000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e692000, size: 0x1300000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7f994000, size: 0x17e000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7fb76000, size: 0x46a000
[ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[ 0.000000] [mem 0x00000000-0x000fffff] page 4k
[ 0.000000] BRK [0x036be000, 0x036befff] PGTABLE
[ 0.000000] BRK [0x036bf000, 0x036bffff] PGTABLE
[ 0.000000] BRK [0x036c0000, 0x036c0fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x7de00000-0x7dffffff]
[ 0.000000] [mem 0x7de00000-0x7dffffff] page 2M
[ 0.000000] BRK [0x036c1000, 0x036c1fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x7c000000-0x7ddfffff]
[ 0.000000] [mem 0x7c000000-0x7ddfffff] page 2M
[ 0.000000] init_memory_mapping: [mem 0x00100000-0x7bffffff]
[ 0.000000] [mem 0x00100000-0x001fffff] page 4k
[ 0.000000] [mem 0x00200000-0x7bffffff] page 2M
[ 0.000000] init_memory_mapping: [mem 0x7e000000-0x7e667fff]
[ 0.000000] [mem 0x7e000000-0x7e5fffff] page 2M
[ 0.000000] [mem 0x7e600000-0x7e667fff] page 4k
[ 0.000000] BRK [0x036c2000, 0x036c2fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x7e692000-0x7fb11fff]
[ 0.000000] [mem 0x7e692000-0x7e7fffff] page 4k
[ 0.000000] [mem 0x7e800000-0x7f9fffff] page 2M
[ 0.000000] [mem 0x7fa00000-0x7fb11fff] page 4k
[ 0.000000] init_memory_mapping: [mem 0x7fb76000-0x7ffdffff]
[ 0.000000] [mem 0x7fb76000-0x7fbfffff] page 4k
[ 0.000000] [mem 0x7fc00000-0x7fdfffff] page 2M
[ 0.000000] [mem 0x7fe00000-0x7ffdffff] page 4k
[ 0.000000] log_buf_len: 16777216
[ 0.000000] early log buf free: 2089788(99%)
[ 0.000000] ACPI: RSDP 000000007fb71014 00024 (v02 OVMF )
[ 0.000000] ACPI: XSDT 000000007fb700e8 0003C (v01 OVMF OVMFEDK2 20130221 01000013)
[ 0.000000] ACPI: FACP 000000007fb6f000 000F4 (v03 OVMF OVMFEDK2 20130221 OVMF 00000099)
[ 0.000000] ACPI: DSDT 000000007fb6d000 00D57 (v01 INTEL OVMF 00000004 INTL 20100528)
[ 0.000000] ACPI: FACS 000000007fb75000 00040
[ 0.000000] ACPI: APIC 000000007fb6e000 00078 (v01 OVMF OVMFEDK2 20130221 OVMF 00000099)
[ 0.000000] ACPI: SSDT 000000007fb6c000 00057 (v01 REDHAT OVMF 00000001 INTL 20100528)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdffff]
[ 0.000000] Initmem setup node 0 [mem 0x00000000-0x7ffdffff]
[ 0.000000] NODE_DATA [mem 0x7e0ca000-0x7e0cbfff]
[ 0.000000] [ffffea0000000000-ffffea0001ffffff] PMD -> [ffff88007a000000-ffff88007bffffff] on node 0
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00001000-0x00ffffff]
[ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00001000-0x0009ffff]
[ 0.000000] node 0: [mem 0x00100000-0x7e667fff]
[ 0.000000] node 0: [mem 0x7e692000-0x7fb11fff]
[ 0.000000] node 0: [mem 0x7fb76000-0x7ffdffff]
[ 0.000000] On node 0 totalpages: 524017
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 2070 pages reserved
[ 0.000000] DMA zone: 3999 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 8128 pages used for memmap
[ 0.000000] DMA32 zone: 520018 pages, LIFO batch:31
[ 0.000000] ACPI: PM-Timer IO Port: 0xb008
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ5 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] ACPI: IRQ10 used by override.
[ 0.000000] ACPI: IRQ11 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[ 0.000000] nr_irqs_gsi: 40
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 000000007e668000 - 000000007e692000
[ 0.000000] PM: Registered nosave memory: 000000007fb12000 - 000000007fb6a000
[ 0.000000] PM: Registered nosave memory: 000000007fb6a000 - 000000007fb72000
[ 0.000000] PM: Registered nosave memory: 000000007fb72000 - 000000007fb76000
[ 0.000000] e820: [mem 0x80000000-0xffffffff] available for PCI devices
[ 0.000000] setup_percpu: NR_CPUS:4 nr_cpumask_bits:4 nr_cpu_ids:1 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88007ce00000 s84736 r8192 d21760 u2097152
[ 0.000000] pcpu-alloc: s84736 r8192 d21760 u2097152 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 513755
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: root=/dev/sda1 debug ignore_loglevel log_buf_len=10M earlyprintk=ttyS0,115200 console=ttyS0,115200 console=tty0
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Memory: 1983624k/2097024k available (5838k kernel code, 956k absent, 112444k reserved, 5274k data, 1080k init)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
[ 0.000000] NR_IRQS:4352 nr_irqs:256 16
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled, bootconsole disabled
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.10.0-rc7+ (boris@nazgul) (gcc version 4.7.3 (Debian 4.7.3-4) ) #9 SMP PREEMPT Mon Aug 5 16:27:00 CEST 2013
[ 0.000000] Command line: root=/dev/sda1 debug ignore_loglevel log_buf_len=10M earlyprintk=ttyS0,115200 console=ttyS0,115200 console=tty0
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007e667fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007e668000-0x000000007e691fff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007e692000-0x000000007fb11fff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007fb12000-0x000000007fb69fff] reserved
[ 0.000000] BIOS-e820: [mem 0x000000007fb6a000-0x000000007fb71fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x000000007fb72000-0x000000007fb75fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x000000007fb76000-0x000000007ffdffff] usable
[ 0.000000] BIOS-e820: [mem 0x000000007ffe0000-0x000000007fffffff] reserved
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] bootconsole [earlyser0] enabled
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] efi: EFI v2.31 by EDK II
[ 0.000000] efi: ACPI=0x7fb71000 ACPI 2.0=0x7fb71014
[ 0.000000] efi: mem00: type=7, attr=0xf, range=[0x0000000000000000-0x000000000009f000) (0MB)
[ 0.000000] efi: mem01: type=2, attr=0xf, range=[0x000000000009f000-0x00000000000a0000) (0MB)
[ 0.000000] efi: mem02: type=7, attr=0xf, range=[0x0000000000100000-0x0000000000800000) (7MB)
[ 0.000000] efi: mem03: type=4, attr=0xf, range=[0x0000000000800000-0x0000000001000000) (8MB)
[ 0.000000] efi: mem04: type=7, attr=0xf, range=[0x0000000001000000-0x0000000002000000) (16MB)
[ 0.000000] efi: mem05: type=2, attr=0xf, range=[0x0000000002000000-0x00000000036e3000) (22MB)
[ 0.000000] efi: mem06: type=7, attr=0xf, range=[0x00000000036e3000-0x000000003fffb000) (969MB)
[ 0.000000] efi: mem07: type=2, attr=0xf, range=[0x000000003fffb000-0x0000000040000000) (0MB)
[ 0.000000] efi: mem08: type=7, attr=0xf, range=[0x0000000040000000-0x000000007c000000) (960MB)
[ 0.000000] efi: mem09: type=4, attr=0xf, range=[0x000000007c000000-0x000000007c020000) (0MB)
[ 0.000000] efi: mem10: type=7, attr=0xf, range=[0x000000007c020000-0x000000007e0ad000) (32MB)
[ 0.000000] efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0cc000) (0MB)
[ 0.000000] efi: mem12: type=7, attr=0xf, range=[0x000000007e0cc000-0x000000007e0cd000) (0MB)
[ 0.000000] efi: mem13: type=4, attr=0xf, range=[0x000000007e0cd000-0x000000007e55d000) (4MB)
[ 0.000000] efi: mem14: type=3, attr=0xf, range=[0x000000007e55d000-0x000000007e59c000) (0MB)
[ 0.000000] efi: mem15: type=4, attr=0xf, range=[0x000000007e59c000-0x000000007e5a0000) (0MB)
[ 0.000000] efi: mem16: type=3, attr=0xf, range=[0x000000007e5a0000-0x000000007e668000) (0MB)
[ 0.000000] efi: mem17: type=5, attr=0x800000000000000f, range=[0x000000007e668000-0x000000007e67d000) (0MB)
[ 0.000000] efi: mem18: type=6, attr=0x800000000000000f, range=[0x000000007e67d000-0x000000007e692000) (0MB)
[ 0.000000] efi: mem19: type=4, attr=0xf, range=[0x000000007e692000-0x000000007f992000) (19MB)
[ 0.000000] efi: mem20: type=7, attr=0xf, range=[0x000000007f992000-0x000000007f994000) (0MB)
[ 0.000000] efi: mem21: type=3, attr=0xf, range=[0x000000007f994000-0x000000007fb12000) (1MB)
[ 0.000000] efi: mem22: type=5, attr=0x800000000000000f, range=[0x000000007fb12000-0x000000007fb42000) (0MB)
[ 0.000000] efi: mem23: type=6, attr=0x800000000000000f, range=[0x000000007fb42000-0x000000007fb66000) (0MB)
[ 0.000000] efi: mem24: type=0, attr=0xf, range=[0x000000007fb66000-0x000000007fb6a000) (0MB)
[ 0.000000] efi: mem25: type=9, attr=0xf, range=[0x000000007fb6a000-0x000000007fb72000) (0MB)
[ 0.000000] efi: mem26: type=10, attr=0xf, range=[0x000000007fb72000-0x000000007fb76000) (0MB)
[ 0.000000] efi: mem27: type=4, attr=0xf, range=[0x000000007fb76000-0x000000007ffe0000) (4MB)
[ 0.000000] efi: mem28: type=6, attr=0x800000000000000f, range=[0x000000007ffe0000-0x0000000080000000) (0MB)
[ 0.000000] DMI not present or invalid.
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] No AGP bridge found
[ 0.000000] e820: last_pfn = 0x7ffe0 max_arch_pfn = 0x400000000
[ 0.000000] MTRR default type: uncachable
[ 0.000000] MTRR fixed ranges enabled:
[ 0.000000] 00000-9FFFF write-back
[ 0.000000] A0000-FFFFF uncachable
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 0000000000 mask FF80000000 write-back
[ 0.000000] 1 disabled
[ 0.000000] 2 disabled
[ 0.000000] 3 disabled
[ 0.000000] 4 disabled
[ 0.000000] 5 disabled
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
[ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106
[ 0.000000] efi: efi_reserve_boot_services: start: 0x800000, size: 0x800000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7c000000, size: 0x20000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e0cd000, size: 0x490000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e55d000, size: 0x3f000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e59c000, size: 0x4000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e5a0000, size: 0xc8000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7e692000, size: 0x1300000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7f994000, size: 0x17e000
[ 0.000000] efi: efi_reserve_boot_services: start: 0x7fb76000, size: 0x46a000
[ 0.000000] Base memory trampoline at [ffff880000099000] 99000 size 24576
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[ 0.000000] [mem 0x00000000-0x000fffff] page 4k
[ 0.000000] BRK [0x036be000, 0x036befff] PGTABLE
[ 0.000000] BRK [0x036bf000, 0x036bffff] PGTABLE
[ 0.000000] BRK [0x036c0000, 0x036c0fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x7de00000-0x7dffffff]
[ 0.000000] [mem 0x7de00000-0x7dffffff] page 2M
[ 0.000000] BRK [0x036c1000, 0x036c1fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x7c000000-0x7ddfffff]
[ 0.000000] [mem 0x7c000000-0x7ddfffff] page 2M
[ 0.000000] init_memory_mapping: [mem 0x00100000-0x7bffffff]
[ 0.000000] [mem 0x00100000-0x001fffff] page 4k
[ 0.000000] [mem 0x00200000-0x7bffffff] page 2M
[ 0.000000] init_memory_mapping: [mem 0x7e000000-0x7e667fff]
[ 0.000000] [mem 0x7e000000-0x7e5fffff] page 2M
[ 0.000000] [mem 0x7e600000-0x7e667fff] page 4k
[ 0.000000] BRK [0x036c2000, 0x036c2fff] PGTABLE
[ 0.000000] init_memory_mapping: [mem 0x7e692000-0x7fb11fff]
[ 0.000000] [mem 0x7e692000-0x7e7fffff] page 4k
[ 0.000000] [mem 0x7e800000-0x7f9fffff] page 2M
[ 0.000000] [mem 0x7fa00000-0x7fb11fff] page 4k
[ 0.000000] init_memory_mapping: [mem 0x7fb76000-0x7ffdffff]
[ 0.000000] [mem 0x7fb76000-0x7fbfffff] page 4k
[ 0.000000] [mem 0x7fc00000-0x7fdfffff] page 2M
[ 0.000000] [mem 0x7fe00000-0x7ffdffff] page 4k
[ 0.000000] log_buf_len: 16777216
[ 0.000000] early log buf free: 2089788(99%)
[ 0.000000] ACPI: RSDP 000000007fb71014 00024 (v02 OVMF )
[ 0.000000] ACPI: XSDT 000000007fb700e8 0003C (v01 OVMF OVMFEDK2 20130221 01000013)
[ 0.000000] ACPI: FACP 000000007fb6f000 000F4 (v03 OVMF OVMFEDK2 20130221 OVMF 00000099)
[ 0.000000] ACPI: DSDT 000000007fb6d000 00D57 (v01 INTEL OVMF 00000004 INTL 20100528)
[ 0.000000] ACPI: FACS 000000007fb75000 00040
[ 0.000000] ACPI: APIC 000000007fb6e000 00078 (v01 OVMF OVMFEDK2 20130221 OVMF 00000099)
[ 0.000000] ACPI: SSDT 000000007fb6c000 00057 (v01 REDHAT OVMF 00000001 INTL 20100528)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdffff]
[ 0.000000] Initmem setup node 0 [mem 0x00000000-0x7ffdffff]
[ 0.000000] NODE_DATA [mem 0x7e0ca000-0x7e0cbfff]
[ 0.000000] [ffffea0000000000-ffffea0001ffffff] PMD -> [ffff88007a000000-ffff88007bffffff] on node 0
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00001000-0x00ffffff]
[ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00001000-0x0009ffff]
[ 0.000000] node 0: [mem 0x00100000-0x7e667fff]
[ 0.000000] node 0: [mem 0x7e692000-0x7fb11fff]
[ 0.000000] node 0: [mem 0x7fb76000-0x7ffdffff]
[ 0.000000] On node 0 totalpages: 524017
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 2070 pages reserved
[ 0.000000] DMA zone: 3999 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 8128 pages used for memmap
[ 0.000000] DMA32 zone: 520018 pages, LIFO batch:31
[ 0.000000] ACPI: PM-Timer IO Port: 0xb008
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ5 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] ACPI: IRQ10 used by override.
[ 0.000000] ACPI: IRQ11 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[ 0.000000] nr_irqs_gsi: 40
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 000000007e668000 - 000000007e692000
[ 0.000000] PM: Registered nosave memory: 000000007fb12000 - 000000007fb6a000
[ 0.000000] PM: Registered nosave memory: 000000007fb6a000 - 000000007fb72000
[ 0.000000] PM: Registered nosave memory: 000000007fb72000 - 000000007fb76000
[ 0.000000] e820: [mem 0x80000000-0xffffffff] available for PCI devices
[ 0.000000] setup_percpu: NR_CPUS:4 nr_cpumask_bits:4 nr_cpu_ids:1 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88007ce00000 s84736 r8192 d21760 u2097152
[ 0.000000] pcpu-alloc: s84736 r8192 d21760 u2097152 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 513755
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: root=/dev/sda1 debug ignore_loglevel log_buf_len=10M earlyprintk=ttyS0,115200 console=ttyS0,115200 console=tty0
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Memory: 1983624k/2097024k available (5838k kernel code, 956k absent, 112444k reserved, 5274k data, 1080k init)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
[ 0.000000] NR_IRQS:4352 nr_irqs:256 16
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled, bootconsole disabled
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.000000] ... MAX_LOCK_DEPTH: 48
[ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
[ 0.000000] ... CLASSHASH_SIZE: 4096
[ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384
[ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768
[ 0.000000] ... CHAINHASH_SIZE: 16384
[ 0.000000] memory used by lock dependency info: 5855 kB
[ 0.000000] per task-struct memory footprint: 1920 bytes
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] tsc: Detected 2893.477 MHz processor
[ 0.004001] Calibrating delay loop (skipped), value calculated using timer frequency.. 5786.95 BogoMIPS (lpj=2893477)
[ 0.006004] pid_max: default: 32768 minimum: 301
[ 0.006776] efi: efi_enter_virtual_mode: enter
[ 0.007004] efi: mem00: type=7, attr=0xf, range=[0x0000000000000000-0x000000000009f000) (0MB)
[ 0.009004] efi: mem01: type=2, attr=0xf, range=[0x000000000009f000-0x00000000000a0000) (0MB)
[ 0.010004] efi: mem02: type=7, attr=0xf, range=[0x0000000000100000-0x0000000000800000) (7MB)
[ 0.011004] efi: mem03: type=4, attr=0xf, range=[0x0000000000800000-0x0000000001000000) (8MB)
[ 0.013004] efi: mem04: type=7, attr=0xf, range=[0x0000000001000000-0x0000000002000000) (16MB)
[ 0.014004] efi: mem05: type=2, attr=0xf, range=[0x0000000002000000-0x00000000036e3000) (22MB)
[ 0.016004] efi: mem06: type=7, attr=0xf, range=[0x00000000036e3000-0x000000003fffb000) (969MB)
[ 0.017004] efi: mem07: type=2, attr=0xf, range=[0x000000003fffb000-0x0000000040000000) (0MB)
[ 0.019004] efi: mem08: type=7, attr=0xf, range=[0x0000000040000000-0x000000007c000000) (960MB)
[ 0.020004] efi: mem09: type=4, attr=0xf, range=[0x000000007c000000-0x000000007c020000) (0MB)
[ 0.021004] efi: mem10: type=7, attr=0xf, range=[0x000000007c020000-0x000000007e0ad000) (32MB)
[ 0.023004] efi: mem11: type=4, attr=0xf, range=[0x000000007e0ad000-0x000000007e0ad000) (0MB)
[ 0.024004] efi: mem12: type=7, attr=0xf, range=[0x000000007e0cc000-0x000000007e0cd000) (0MB)
[ 0.026004] efi: mem13: type=4, attr=0xf, range=[0x000000007e0cd000-0x000000007e55d000) (4MB)
[ 0.027004] efi: mem14: type=3, attr=0xf, range=[0x000000007e55d000-0x000000007e59c000) (0MB)
[ 0.028004] efi: mem15: type=4, attr=0xf, range=[0x000000007e59c000-0x000000007e5a0000) (0MB)
[ 0.030004] efi: mem16: type=3, attr=0xf, range=[0x000000007e5a0000-0x000000007e668000) (0MB)
[ 0.031004] efi: mem17: type=5, attr=0x800000000000000f, range=[0x000000007e668000-0x000000007e67d000) (0MB)
[ 0.033004] efi: mem18: type=6, attr=0x800000000000000f, range=[0x000000007e67d000-0x000000007e692000) (0MB)
[ 0.035004] efi: mem19: type=4, attr=0xf, range=[0x000000007e692000-0x000000007f992000) (19MB)
[ 0.036004] efi: mem20: type=7, attr=0xf, range=[0x000000007f992000-0x000000007f994000) (0MB)
[ 0.037004] efi: mem21: type=3, attr=0xf, range=[0x000000007f994000-0x000000007fb12000) (1MB)
[ 0.039004] efi: mem22: type=5, attr=0x800000000000000f, range=[0x000000007fb12000-0x000000007fb42000) (0MB)
[ 0.040004] efi: mem23: type=6, attr=0x800000000000000f, range=[0x000000007fb42000-0x000000007fb66000) (0MB)
[ 0.042004] efi: mem24: type=0, attr=0xf, range=[0x000000007fb66000-0x000000007fb6a000) (0MB)
[ 0.043004] efi: mem25: type=9, attr=0xf, range=[0x000000007fb6a000-0x000000007fb72000) (0MB)
[ 0.045004] efi: mem26: type=10, attr=0xf, range=[0x000000007fb72000-0x000000007fb76000) (0MB)
[ 0.046004] efi: mem27: type=4, attr=0xf, range=[0x000000007fb76000-0x000000007ffe0000) (4MB)
[ 0.048004] efi: mem28: type=6, attr=0x800000000000000f, range=[0x000000007ffe0000-0x0000000080000000) (0MB)

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

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