ubuntu系统死机无法正常启动修复记
事发
时间：2019年2月19日 星期一
实验需要，vmware开启了三个虚拟机，两个windows server 2008 ，一个centos，此时的系统已经有些卡顿了，由于还需要一台实验机，于是又开启了一天windows 7 。
结果就悲剧了，整个系统变的超级卡，基本已经陷入死机状态。
重启系统，结果发现只能进入grub的菜单选项，选择进入之后，就完全黑屏了。
修复
尝试恢复模式
首先想到的是，尝试进入恢复模式
既然恢复模式不起作用，那就尝试下Live CD呗。
U盘启动盘
首先，在windows下，尝试使用`rufus`来制作ubuntu 18.04.1的u盘启动盘。
尝试启动，出现了[[Firmware Bug\]: TSC_DEADLINE disabled due to Errata; please update microcode to version: 0x52 (or later) [duplicate]](https://askubuntu.com/questions/984720/ ... crocode-to)的错误提示。
没有办法，那就尝试下升级主板的bios吧，中间一痛折腾，本文掠过升级过程，最后升级成功。
再次尝试live cd引导，发现还是进不去，虽然不提示之前的错误了，但还是进不去。
为了排除做出来的镜像有问题，
这是怎么回事？U盘不行，光盘试试？
光盘启动盘
由于手头有一张kali的live cd，于是尝试来引导启动。
启动选择界面倒是进去了，但是会滴滴响两声。
尝试`try without install`选项，进入live cd模式，结果很悲催的，还是卡住了，**提示在`initrd 正在加载`（不记得准确的输出了，但initrd这个还是记得的）之后就没动静了**。
还能怎么办？尝试下PE？
WinPE启动
使用通用PE（win10版）启动，这回倒是进去了。
有点不理解，为什么PE可以进，但linux的live就各种问题
pe下无法查看linux系统的文件，也无法读取或者修改，貌似进去了也没什么用
由于也没有什么启动日志可以查看，于是决定从恢复模式的启动错误考虑怎么解决问题
grub下查看initrd
由于加载停在了initrd处，于是怀疑是不是`initrd.img-4.15.0-45-generic`或者`vmlinuz-4.15.0-45-generic`发生错误了
于是在虚拟机中安装了ubuntu 18.04.1，又把内核升级到了`4.15.0-45`
使用sha1sum对以上两个文件作哈希计算，得到如下图所示
所以，接下来想尝试能不能恢复该文件
PE下读写ext3分区
由于只能进入pe，所以找了几款软件，尝试在windows下读取ext3分区，包括以下几个：
1. ext2explore
由于ext3的硬盘没有挂载，所以什么都看不到
2. ext2fs/pme3
由于缺少一些依赖文件，无法运行
3. ext2fsd
可以挂载上硬盘，但是显示是未格式化，也不行
4. ext2ifs
缺少文件，无法运行
5. rfsgui
缺少文件，无法运行
6. totalcommand+ex2fs插件
插件安装失败，缺少dll
7. linux_reader
可以读取出来，但是却没有办法写入
这下子感觉没什么办法了，不行做个windows to go试试吧，结果不知道什么原因，windows to go没有运行起来，在别的机器上也是了是，都不行
还尝试用了parrot os，和kali一样，都卡在了initrd处
不经意的重启尝试
尝试失败后，重启了电脑，没有管它，准备想一想还有什么办法
结果再看的时候，这回居然自己进去了...
但没敢关闭系统，不知道还会不会出问题
再次使用sha1sum对`initrd.img-4.15.0-45-generic`计算hash值，发现和grub下计算的值是一样的，第二天再此计算的时候，发现该文件的hash值又发生了变化，再查看了下修改时间，结果发现早些时候，这个文件又被更新过了
代码： 全选
mary@jack:/boot$ sha1sum initrd.img-4.15.0-45-generic
824f833442c83e304577e85754b0d20f609d7cef initrd.img-4.15.0-45-generic一头雾水...
问题
无法进入系统的原因
dmesg打印了启动日志，是最后一次成功进入系统的日志，不知道能不能看出点问题来
系统如何自动恢复的原因[ 0.000000] Linux version 4.15.0-45-generic (buildd@lgw01-amd64-031) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC 2019 (Ubuntu 4.15.0-45.48-generic 4.15.18)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic root=UUID=f6f333bb-2efc-40b3-9bda-9b47e041a5cc ro quiet splash
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000004efff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000004f000-0x000000000004ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000050000-0x000000000009dfff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009e000-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000b662efff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000b662f000-0x00000000b6635fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000b6636000-0x00000000b6a7bfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000b6a7c000-0x00000000b6e34fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000b6e35000-0x00000000c96fcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000c96fd000-0x00000000c98f3fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000c98f4000-0x00000000c9913fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000c9914000-0x00000000c9a04fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000c9a05000-0x00000000c9f7ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000c9f80000-0x00000000c9ffefff] type 20
[ 0.000000] BIOS-e820: [mem 0x00000000c9fff000-0x00000000c9ffffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000cc000000-0x00000000ce1fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed03fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000042fdfffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] efi: EFI v2.31 by American Megatrends
[ 0.000000] efi: ACPI=0xc98fa000 ACPI 2.0=0xc98fa000 SMBIOS=0xc9f7e498 MPS=0xf4df0
[ 0.000000] secureboot: Secure boot could not be determined (mode 0)
[ 0.000000] SMBIOS 2.7 present.
[ 0.000000] DMI: Hewlett-Packard HP EliteDesk 880 G1 TWR/18E4, BIOS L01 v02.75 05/04/2018
[ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] e820: last_pfn = 0x42fe00 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-BFFFF uncachable
[ 0.000000] C0000-CFFFF write-protect
[ 0.000000] D0000-DFFFF uncachable
[ 0.000000] E0000-FFFFF write-protect
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 0000000000 mask 7C00000000 write-back
[ 0.000000] 1 base 0400000000 mask 7FE0000000 write-back
[ 0.000000] 2 base 0420000000 mask 7FF0000000 write-back
[ 0.000000] 3 base 00E0000000 mask 7FE0000000 uncachable
[ 0.000000] 4 base 00D0000000 mask 7FF0000000 uncachable
[ 0.000000] 5 base 00CC000000 mask 7FFC000000 uncachable
[ 0.000000] 6 base 042FE00000 mask 7FFFE00000 uncachable
[ 0.000000] 7 disabled
[ 0.000000] 8 disabled
[ 0.000000] 9 disabled
[ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.000000] total RAM covered: 16318M
[ 0.000000] Found optimal setting for mtrr clean up
[ 0.000000] gran_size: 64K chunk_size: 4M num_reg: 9 lose cover RAM: 0G
[ 0.000000] e820: update [mem 0xcc000000-0xffffffff] usable ==> reserved
[ 0.000000] e820: last_pfn = 0xca000 max_arch_pfn = 0x400000000
[ 0.000000] found SMP MP-table at [mem 0x000f4de0-0x000f4def] mapped at [ (ptrval)]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Base memory trampoline at [ (ptrval)] 97000 size 24576
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] BRK [0x22c93f000, 0x22c93ffff] PGTABLE
[ 0.000000] BRK [0x22c940000, 0x22c940fff] PGTABLE
[ 0.000000] BRK [0x22c941000, 0x22c941fff] PGTABLE
[ 0.000000] BRK [0x22c942000, 0x22c942fff] PGTABLE
[ 0.000000] BRK [0x22c943000, 0x22c943fff] PGTABLE
[ 0.000000] BRK [0x22c944000, 0x22c944fff] PGTABLE
[ 0.000000] BRK [0x22c945000, 0x22c945fff] PGTABLE
[ 0.000000] BRK [0x22c946000, 0x22c946fff] PGTABLE
[ 0.000000] BRK [0x22c947000, 0x22c947fff] PGTABLE
[ 0.000000] BRK [0x22c948000, 0x22c948fff] PGTABLE
[ 0.000000] BRK [0x22c949000, 0x22c949fff] PGTABLE
[ 0.000000] BRK [0x22c94a000, 0x22c94afff] PGTABLE
[ 0.000000] RAMDISK: [mem 0x315f1000-0x34aeffff]
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x00000000C98FA000 000024 (v02 HPQOEM)
[ 0.000000] ACPI: XSDT 0x00000000C98FA090 00009C (v01 HPQOEM SLIC-BPC 20180504 AMI 00010013)
[ 0.000000] ACPI: FACP 0x00000000C9908000 00010C (v05 HPQOEM SLIC-BPC 20180504 AMI 00010013)
[ 0.000000] ACPI: DSDT 0x00000000C98FA1B8 00DE46 (v02 HPQOEM SLIC-BPC 00000001 INTL 20091112)
[ 0.000000] ACPI: FACS 0x00000000C9A03080 000040
[ 0.000000] ACPI: APIC 0x00000000C9908110 000092 (v03 HPQOEM SLIC-BPC 20180504 AMI 00010013)
[ 0.000000] ACPI: FPDT 0x00000000C99081A8 000044 (v01 HPQOEM SLIC-BPC 20180504 AMI 00010013)
[ 0.000000] ACPI: SSDT 0x00000000C99081F0 000539 (v01 PmRef Cpu0Ist 00003000 INTL 20120711)
[ 0.000000] ACPI: SSDT 0x00000000C9908730 000AD8 (v01 PmRef CpuPm 00003000 INTL 20120711)
[ 0.000000] ACPI: SSDT 0x00000000C9909208 0001C7 (v01 PmRef LakeTiny 00003000 INTL 20120711)
[ 0.000000] ACPI: MCFG 0x00000000C99093D0 00003C (v01 HPQOEM SLIC-BPC 20180504 MSFT 00000097)
[ 0.000000] ACPI: HPET 0x00000000C9909410 000038 (v01 HPQOEM SLIC-BPC 20180504 AMI. 00000005)
[ 0.000000] ACPI: SSDT 0x00000000C9909448 00036D (v01 SataRe SataTabl 00001000 INTL 20120711)
[ 0.000000] ACPI: SSDT 0x00000000C99097B8 00348C (v01 SaSsdt SaSsdt 00003000 INTL 20091112)
[ 0.000000] ACPI: SSDT 0x00000000C990CC48 00668F (v01 COMPAQ WMI 00000001 MSFT 03000001)
[ 0.000000] ACPI: SLIC 0x00000000C99132D8 000176 (v01 HPQOEM SLIC-BPC 00000001 00000000)
[ 0.000000] ACPI: ASF! 0x00000000C9913450 0000A5 (v32 INTEL HCG 00000001 TFSM 000F4240)
[ 0.000000] ACPI: TCPA 0x00000000C99134F8 000032 (v02 APTIO4 NAPAASF 00000001 MSFT 01000013)
[ 0.000000] ACPI: DMAR 0x00000000C9913530 0000B8 (v01 INTEL HSW 00000001 INTL 00000001)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000042fdfffff]
[ 0.000000] NODE_DATA(0) allocated [mem 0x42fdd5000-0x42fdfffff]
[ 0.000000] tsc: Fast TSC calibration using PIT
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.000000] Normal [mem 0x0000000100000000-0x000000042fdfffff]
[ 0.000000] Device empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000001000-0x000000000004efff]
[ 0.000000] node 0: [mem 0x0000000000050000-0x000000000009dfff]
[ 0.000000] node 0: [mem 0x0000000000100000-0x00000000b662efff]
[ 0.000000] node 0: [mem 0x00000000b6636000-0x00000000b6a7bfff]
[ 0.000000] node 0: [mem 0x00000000b6e35000-0x00000000c96fcfff]
[ 0.000000] node 0: [mem 0x00000000c9fff000-0x00000000c9ffffff]
[ 0.000000] node 0: [mem 0x0000000100000000-0x000000042fdfffff]
[ 0.000000] Reserved but unavailable: 27942 pages
[ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000042fdfffff]
[ 0.000000] On node 0 totalpages: 4165850
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 41 pages reserved
[ 0.000000] DMA zone: 3996 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 12813 pages used for memmap
[ 0.000000] DMA32 zone: 820030 pages, LIFO batch:31
[ 0.000000] Normal zone: 52216 pages used for memmap
[ 0.000000] Normal zone: 3341824 pages, LIFO batch:31
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] high edge lint[0x1])
[ 0.000000] IOAPIC[0]: apic_id 8, version 32, 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 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[ 0.000000] smpboot: Allowing 8 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0004f000-0x0004ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x0009e000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xb662f000-0xb6635fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xb6a7c000-0xb6e34fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xc96fd000-0xc98f3fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xc98f4000-0xc9913fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xc9914000-0xc9a04fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xc9a05000-0xc9f7ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xc9f80000-0xc9ffefff]
[ 0.000000] PM: Registered nosave memory: [mem 0xca000000-0xcbffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xcc000000-0xce1fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xce200000-0xf7ffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfc000000-0xfebfffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfecfffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfed00000-0xfed03fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfed04000-0xfed1bfff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfed20000-0xfedfffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfee00000-0xfee00fff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfee01000-0xfeffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xff000000-0xffffffff]
[ 0.000000] e820: [mem 0xce200000-0xf7ffffff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on bare hardware
[ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[ 0.000000] random: get_random_bytes called from start_kernel+0x99/0x4fd with crng_init=0
[ 0.000000] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:1
[ 0.000000] percpu: Embedded 46 pages/cpu @ (ptrval) s151552 r8192 d28672 u262144
[ 0.000000] pcpu-alloc: s151552 r8192 d28672 u262144 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1 2 3 4 5 6 7
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 4100716
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic root=UUID=f6f333bb-2efc-40b3-9bda-9b47e041a5cc ro quiet splash
[ 0.000000] Calgary: detecting Calgary via BIOS EBDA area
[ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing!
[ 0.000000] Memory: 16010060K/16663400K available (12300K kernel code, 2473K rwdata, 4252K rodata, 2408K init, 2416K bss, 653340K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[ 0.000000] Kernel/User page tables isolation: enabled
[ 0.000000] ftrace: allocating 39194 entries in 154 pages
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=8.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8
[ 0.000000] NR_IRQS: 524544, nr_irqs: 488, preallocated irqs: 16
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] ACPI: Core revision 20170831
[ 0.000000] ACPI: 7 ACPI AML tables successfully acquired and loaded
[ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
[ 0.000000] hpet clockevent registered
[ 0.000000] APIC: Switch to symmetric I/O mode setup
[ 0.000000] DMAR: Host address width 39
[ 0.000000] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[ 0.000000] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap c0000020660462 ecap f0101a
[ 0.000000] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[ 0.000000] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008020660462 ecap f010da
[ 0.000000] DMAR: RMRR base: 0x000000c9889000 end: 0x000000c9895fff
[ 0.000000] DMAR: RMRR base: 0x000000cc000000 end: 0x000000ce1fffff
[ 0.000000] DMAR-IR: IOAPIC id 8 under DRHD base 0xfed91000 IOMMU 1
[ 0.000000] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[ 0.000000] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 0.000000] DMAR-IR: Enabled IRQ remapping in x2apic mode
[ 0.000000] x2apic enabled
[ 0.000000] Switched APIC routing to cluster x2apic.
[ 0.000000] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.020000] tsc: Fast TSC calibration using PIT
[ 0.024000] tsc: Detected 3591.523 MHz processor
[ 0.024000] Calibrating delay loop (skipped), value calculated using timer frequency.. 7183.04 BogoMIPS (lpj=14366092)
[ 0.024000] pid_max: default: 32768 minimum: 301
[ 0.024000] Security Framework initialized
[ 0.024000] Yama: becoming mindful.
[ 0.024000] AppArmor: AppArmor initialized
[ 0.024000] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes)
[ 0.028510] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[ 0.028552] Mount-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.028586] Mountpoint-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.028741] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[ 0.028741] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
[ 0.028745] mce: CPU supports 9 MCE banks
[ 0.028751] CPU0: Thermal monitoring enabled (TM1)
[ 0.028761] process: using mwait in idle threads
[ 0.028763] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
[ 0.028764] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
[ 0.028765] Spectre V2 : Mitigation: Full generic retpoline
[ 0.028765] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[ 0.028765] Spectre V2 : Spectre v2 mitigation: Enabling Indirect Branch Prediction Barrier
[ 0.028766] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.028767] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp
[ 0.032782] Freeing SMP alternatives memory: 36K
[ 0.037800] TSC deadline timer enabled
[ 0.037803] smpboot: CPU0: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (family: 0x6, model: 0x3c, stepping: 0x3)
[ 0.037849] Performance Events: PEBS fmt2+, Haswell events, 16-deep LBR, full-width counters, Intel PMU driver.
[ 0.037876] ... version: 3
[ 0.037877] ... bit width: 48
[ 0.037877] ... generic registers: 4
[ 0.037877] ... value mask: 0000ffffffffffff
[ 0.037878] ... max period: 00007fffffffffff
[ 0.037878] ... fixed-purpose events: 3
[ 0.037878] ... event mask: 000000070000000f
[ 0.037903] Hierarchical SRCU implementation.
[ 0.038744] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter.
[ 0.038754] smp: Bringing up secondary CPUs ...
[ 0.038801] x86: Booting SMP configuration:
[ 0.038802] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
[ 0.040566] smp: Brought up 1 node, 8 CPUs
[ 0.040566] smpboot: Max logical packages: 1
[ 0.040566] smpboot: Total of 8 processors activated (57464.36 BogoMIPS)
[ 0.044340] devtmpfs: initialized
[ 0.044340] x86/mm: Memory block size: 128MB
[ 0.044809] evm: security.selinux
[ 0.044809] evm: security.SMACK64
[ 0.044809] evm: security.SMACK64EXEC
[ 0.044810] evm: security.SMACK64TRANSMUTE
[ 0.044810] evm: security.SMACK64MMAP
[ 0.044810] evm: security.apparmor
[ 0.044811] evm: security.ima
[ 0.044811] evm: security.capability
[ 0.044821] PM: Registering ACPI NVS region [mem 0xb662f000-0xb6635fff] (28672 bytes)
[ 0.044821] PM: Registering ACPI NVS region [mem 0xc9914000-0xc9a04fff] (987136 bytes)
[ 0.044821] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.044821] futex hash table entries: 2048 (order: 5, 131072 bytes)
[ 0.044821] pinctrl core: initialized pinctrl subsystem
[ 0.044821] RTC time: 7:45:00, date: 02/19/19
[ 0.044821] NET: Registered protocol family 16
[ 0.044821] audit: initializing netlink subsys (disabled)
[ 0.044821] audit: type=2000 audit(1550562300.044:1): state=initialized audit_enabled=0 res=1
[ 0.044821] cpuidle: using governor ladder
[ 0.044821] cpuidle: using governor menu
[ 0.044821] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[ 0.044821] ACPI: bus type PCI registered
[ 0.044821] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[ 0.044821] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[ 0.044821] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[ 0.044821] PCI: Using configuration type 1 for base access
[ 0.044821] core: PMU erratum BJ122, BV98, HSD29 worked around, HT is on
[ 0.044905] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.044905] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.044905] ACPI: Added _OSI(Module Device)
[ 0.044905] ACPI: Added _OSI(Processor Device)
[ 0.044905] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.044905] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.044905] ACPI: Added _OSI(Linux-Dell-Video)
[ 0.044905] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[ 0.044905] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
[ 0.044905] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.049723] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.052133] ACPI: Dynamic OEM Table Load:
[ 0.052137] ACPI: SSDT 0xFFFF8A061C862C00 0003D3 (v01 PmRef Cpu0Cst 00003001 INTL 20120711)
[ 0.052294] ACPI: Dynamic OEM Table Load:
[ 0.052298] ACPI: SSDT 0xFFFF8A061CD6E000 0005AA (v01 PmRef ApIst 00003000 INTL 20120711)
[ 0.052647] ACPI: Dynamic OEM Table Load:
[ 0.052647] ACPI: SSDT 0xFFFF8A061C847400 000119 (v01 PmRef ApCst 00003000 INTL 20120711)
[ 0.056282] ACPI: Interpreter enabled
[ 0.056304] ACPI: (supports S0 S3 S4 S5)
[ 0.056305] ACPI: Using IOAPIC for interrupt routing
[ 0.056326] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.056582] ACPI: Enabled 7 GPEs in block 00 to 3F
[ 0.066442] ACPI: Power Resource [FN00] (off)
[ 0.066531] ACPI: Power Resource [FN01] (off)
[ 0.066617] ACPI: Power Resource [FN02] (off)
[ 0.066703] ACPI: Power Resource [FN03] (off)
[ 0.066788] ACPI: Power Resource [FN04] (off)
[ 0.067664] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
[ 0.067668] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
[ 0.067904] acpi PNP0A08:00: _OSC: platform does not support [PCIeHotplug PME]
[ 0.068044] acpi PNP0A08:00: _OSC: OS now controls [AER PCIeCapability]
[ 0.068044] acpi PNP0A08:00: FADT indicates ASPM is unsupported, using BIOS configuration
[ 0.068455] PCI host bridge to bus 0000:00
[ 0.068457] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 0.068458] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 0.068459] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[ 0.068459] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000d3fff window]
[ 0.068460] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff window]
[ 0.068461] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff window]
[ 0.068462] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff window]
[ 0.068463] pci_bus 0000:00: root bus resource [mem 0xce200000-0xfeafffff window]
[ 0.068464] pci_bus 0000:00: root bus resource [bus 00-3e]
[ 0.068470] pci 0000:00:00.0: [8086:0c00] type 00 class 0x060000
[ 0.068539] pci 0000:00:01.0: [8086:0c01] type 01 class 0x060400
[ 0.068566] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[ 0.068669] pci 0000:00:02.0: [8086:0412] type 00 class 0x038000
[ 0.068677] pci 0000:00:02.0: reg 0x10: [mem 0xf7400000-0xf77fffff 64bit]
[ 0.068681] pci 0000:00:02.0: reg 0x18: [mem 0xd0000000-0xdfffffff 64bit pref]
[ 0.068684] pci 0000:00:02.0: reg 0x20: [io 0xf000-0xf03f]
[ 0.068745] pci 0000:00:03.0: [8086:0c0c] type 00 class 0x040300
[ 0.068751] pci 0000:00:03.0: reg 0x10: [mem 0xf7834000-0xf7837fff 64bit]
[ 0.068834] pci 0000:00:14.0: [8086:8c31] type 00 class 0x0c0330
[ 0.068852] pci 0000:00:14.0: reg 0x10: [mem 0xf7820000-0xf782ffff 64bit]
[ 0.068902] pci 0000:00:14.0: PME# supported from D3hot D3cold
[ 0.068962] pci 0000:00:16.0: [8086:8c3a] type 00 class 0x078000
[ 0.068980] pci 0000:00:16.0: reg 0x10: [mem 0xf7840000-0xf784000f 64bit]
[ 0.069033] pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
[ 0.069094] pci 0000:00:16.3: [8086:8c3d] type 00 class 0x070002
[ 0.069107] pci 0000:00:16.3: reg 0x10: [io 0xf0e0-0xf0e7]
[ 0.069112] pci 0000:00:16.3: reg 0x14: [mem 0xf783e000-0xf783efff]
[ 0.069215] pci 0000:00:19.0: [8086:153a] type 00 class 0x020000
[ 0.069231] pci 0000:00:19.0: reg 0x10: [mem 0xf7800000-0xf781ffff]
[ 0.069237] pci 0000:00:19.0: reg 0x14: [mem 0xf783d000-0xf783dfff]
[ 0.069244] pci 0000:00:19.0: reg 0x18: [io 0xf080-0xf09f]
[ 0.069293] pci 0000:00:19.0: PME# supported from D0 D3hot D3cold
[ 0.069355] pci 0000:00:1a.0: [8086:8c2d] type 00 class 0x0c0320
[ 0.069373] pci 0000:00:1a.0: reg 0x10: [mem 0xf783c000-0xf783c3ff]
[ 0.069445] pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
[ 0.069507] pci 0000:00:1b.0: [8086:8c20] type 00 class 0x040300
[ 0.069523] pci 0000:00:1b.0: reg 0x10: [mem 0xf7830000-0xf7833fff 64bit]
[ 0.069574] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[ 0.069637] pci 0000:00:1c.0: [8086:8c10] type 01 class 0x060400
[ 0.069699] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[ 0.069800] pci 0000:00:1c.1: [8086:8c12] type 01 class 0x060400
[ 0.069863] pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold
[ 0.069968] pci 0000:00:1d.0: [8086:8c26] type 00 class 0x0c0320
[ 0.069987] pci 0000:00:1d.0: reg 0x10: [mem 0xf783b000-0xf783b3ff]
[ 0.070058] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
[ 0.070122] pci 0000:00:1f.0: [8086:8c4e] type 00 class 0x060100
[ 0.070271] pci 0000:00:1f.2: [8086:8c02] type 00 class 0x010601
[ 0.070285] pci 0000:00:1f.2: reg 0x10: [io 0xf0d0-0xf0d7]
[ 0.070291] pci 0000:00:1f.2: reg 0x14: [io 0xf0c0-0xf0c3]
[ 0.070297] pci 0000:00:1f.2: reg 0x18: [io 0xf0b0-0xf0b7]
[ 0.070304] pci 0000:00:1f.2: reg 0x1c: [io 0xf0a0-0xf0a3]
[ 0.070310] pci 0000:00:1f.2: reg 0x20: [io 0xf060-0xf07f]
[ 0.070316] pci 0000:00:1f.2: reg 0x24: [mem 0xf783a000-0xf783a7ff]
[ 0.070346] pci 0000:00:1f.2: PME# supported from D3hot
[ 0.070401] pci 0000:00:1f.3: [8086:8c22] type 00 class 0x0c0500
[ 0.070417] pci 0000:00:1f.3: reg 0x10: [mem 0xf7839000-0xf78390ff 64bit]
[ 0.070434] pci 0000:00:1f.3: reg 0x20: [io 0xf040-0xf05f]
[ 0.070540] pci 0000:01:00.0: [10de:0fc2] type 00 class 0x030000
[ 0.070556] pci 0000:01:00.0: reg 0x10: [mem 0xf6000000-0xf6ffffff]
[ 0.070565] pci 0000:01:00.0: reg 0x14: [mem 0xe0000000-0xefffffff 64bit pref]
[ 0.070574] pci 0000:01:00.0: reg 0x1c: [mem 0xf0000000-0xf1ffffff 64bit pref]
[ 0.070580] pci 0000:01:00.0: reg 0x24: [io 0xe000-0xe07f]
[ 0.070586] pci 0000:01:00.0: reg 0x30: [mem 0xf7000000-0xf707ffff pref]
[ 0.070598] pci 0000:01:00.0: BAR 3: assigned to efifb
[ 0.070671] pci 0000:01:00.1: [10de:0e1b] type 00 class 0x040300
[ 0.070685] pci 0000:01:00.1: reg 0x10: [mem 0xf7080000-0xf7083fff]
[ 0.080013] pci 0000:00:01.0: PCI bridge to [bus 01]
[ 0.080015] pci 0000:00:01.0: bridge window [io 0xe000-0xefff]
[ 0.080017] pci 0000:00:01.0: bridge window [mem 0xf6000000-0xf70fffff]
[ 0.080019] pci 0000:00:01.0: bridge window [mem 0xe0000000-0xf1ffffff 64bit pref]
[ 0.080092] acpiphp: Slot [1] registered
[ 0.080097] pci 0000:00:1c.0: PCI bridge to [bus 02]
[ 0.080221] pci 0000:03:00.0: [10ec:8168] type 00 class 0x020000
[ 0.080250] pci 0000:03:00.0: reg 0x10: [io 0xd000-0xd0ff]
[ 0.080337] pci 0000:03:00.0: reg 0x18: [mem 0xf2110000-0xf2110fff 64bit pref]
[ 0.080393] pci 0000:03:00.0: reg 0x20: [mem 0xf2100000-0xf210ffff 64bit pref]
[ 0.080425] pci 0000:03:00.0: reg 0x30: [mem 0xffff0000-0xffffffff pref]
[ 0.080612] pci 0000:03:00.0: supports D1 D2
[ 0.080613] pci 0000:03:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.096049] pci 0000:00:1c.1: PCI bridge to [bus 03]
[ 0.096053] pci 0000:00:1c.1: bridge window [io 0xd000-0xdfff]
[ 0.096058] pci 0000:00:1c.1: bridge window [mem 0xf2100000-0xf21fffff 64bit pref]
[ 0.096992] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 0.097051] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 11 12 14 15)
[ 0.097107] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 10 11 12 14 15)
[ 0.097169] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 10 11 12 14 15)
[ 0.097230] ACPI: PCI Interrupt Link [LNKE] (IRQs *3 4 5 6 10 11 12 14 15)
[ 0.097287] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 11 12 14 15) *0, disabled.
[ 0.097338] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 *11 12 14 15)
[ 0.097390] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 *10 11 12 14 15)
[ 0.097843] SCSI subsystem initialized
[ 0.097852] libata version 3.00 loaded.
[ 0.097852] pci 0000:01:00.0: vgaarb: setting as boot VGA device
[ 0.097852] pci 0000:01:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[ 0.097852] pci 0000:01:00.0: vgaarb: bridge control possible
[ 0.097852] vgaarb: loaded
[ 0.097852] ACPI: bus type USB registered
[ 0.097852] usbcore: registered new interface driver usbfs
[ 0.097852] usbcore: registered new interface driver hub
[ 0.097852] usbcore: registered new device driver usb
[ 0.097852] EDAC MC: Ver: 3.0.0
[ 0.097852] Registered efivars operations
[ 0.111322] PCI: Using ACPI for IRQ routing
[ 0.112543] PCI: pci_cache_line_size set to 64 bytes
[ 0.112595] e820: reserve RAM buffer [mem 0x0004f000-0x0004ffff]
[ 0.112596] e820: reserve RAM buffer [mem 0x0009e000-0x0009ffff]
[ 0.112596] e820: reserve RAM buffer [mem 0xb662f000-0xb7ffffff]
[ 0.112597] e820: reserve RAM buffer [mem 0xb6a7c000-0xb7ffffff]
[ 0.112597] e820: reserve RAM buffer [mem 0xc96fd000-0xcbffffff]
[ 0.112598] e820: reserve RAM buffer [mem 0xca000000-0xcbffffff]
[ 0.112599] e820: reserve RAM buffer [mem 0x42fe00000-0x42fffffff]
[ 0.112660] NetLabel: Initializing
[ 0.112660] NetLabel: domain hash size = 128
[ 0.112661] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 0.112671] NetLabel: unlabeled traffic allowed by default
[ 0.112679] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[ 0.112679] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[ 0.114244] clocksource: Switched to clocksource hpet
[ 0.119212] VFS: Disk quotas dquot_6.6.0
[ 0.119223] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.119296] AppArmor: AppArmor Filesystem Enabled
[ 0.119316] pnp: PnP ACPI init
[ 0.119413] system 00:00: [mem 0xfed40000-0xfed44fff] has been reserved
[ 0.119417] system 00:00: Plug and Play ACPI device, IDs PNP0c01 (active)
[ 0.119519] pnp 00:01: can't evaluate _CRS: 12311
[ 0.119541] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.119560] pnp 00:02: Plug and Play ACPI device, IDs PNP0b00 (active)
[ 0.119598] system 00:03: [io 0x1854-0x1857] has been reserved
[ 0.119600] system 00:03: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[ 0.119718] system 00:04: [io 0x0a20-0x0a3f] has been reserved
[ 0.119719] system 00:04: [io 0x0a10-0x0a1f] has been reserved
[ 0.119722] system 00:04: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.119746] pnp 00:05: Plug and Play ACPI device, IDs PNP0303 PNP030b (active)
[ 0.119780] pnp 00:06: Plug and Play ACPI device, IDs PNP0f03 PNP0f13 (active)
[ 0.119819] system 00:07: [io 0x04d0-0x04d1] has been reserved
[ 0.119821] system 00:07: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.119991] pnp 00:08: [dma 0 disabled]
[ 0.120072] pnp 00:08: Plug and Play ACPI device, IDs PNP0501 (active)
[ 0.120397] pnp 00:09: [dma 1]
[ 0.120480] pnp 00:09: Plug and Play ACPI device, IDs PNP0401 (active)
[ 0.120519] pnp 00:0a: Plug and Play ACPI device, IDs IFX0102 PNP0c31 (active)
[ 0.120964] system 00:0b: [mem 0xfed1c000-0xfed1ffff] has been reserved
[ 0.120965] system 00:0b: [mem 0xfed10000-0xfed17fff] has been reserved
[ 0.120966] system 00:0b: [mem 0xfed18000-0xfed18fff] has been reserved
[ 0.120967] system 00:0b: [mem 0xfed19000-0xfed19fff] has been reserved
[ 0.120969] system 00:0b: [mem 0xf8000000-0xfbffffff] has been reserved
[ 0.120970] system 00:0b: [mem 0xfed20000-0xfed3ffff] has been reserved
[ 0.120971] system 00:0b: [mem 0xfed90000-0xfed93fff] could not be reserved
[ 0.120972] system 00:0b: [mem 0xfed45000-0xfed8ffff] has been reserved
[ 0.120973] system 00:0b: [mem 0xff000000-0xffffffff] has been reserved
[ 0.120974] system 00:0b: [mem 0xfee00000-0xfeefffff] could not be reserved
[ 0.120975] system 00:0b: [mem 0xf7fdf000-0xf7fdffff] has been reserved
[ 0.120976] system 00:0b: [mem 0xf7fe0000-0xf7feffff] has been reserved
[ 0.120979] system 00:0b: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.121280] pnp: PnP ACPI: found 12 devices
[ 0.127195] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[ 0.127198] pci 0000:03:00.0: can't claim BAR 6 [mem 0xffff0000-0xffffffff pref]: no compatible bridge window
[ 0.127215] pci 0000:00:1c.0: bridge window [io 0x1000-0x0fff] to [bus 02] add_size 1000
[ 0.127217] pci 0000:00:1c.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 02] add_size 200000 add_align 100000
[ 0.127218] pci 0000:00:1c.0: bridge window [mem 0x00100000-0x000fffff] to [bus 02] add_size 200000 add_align 100000
[ 0.127234] pci 0000:00:1c.0: BAR 14: assigned [mem 0xce200000-0xce3fffff]
[ 0.127238] pci 0000:00:1c.0: BAR 15: assigned [mem 0xce400000-0xce5fffff 64bit pref]
[ 0.127239] pci 0000:00:1c.1: BAR 14: assigned [mem 0xce600000-0xce6fffff]
[ 0.127241] pci 0000:00:1c.0: BAR 13: assigned [io 0x2000-0x2fff]
[ 0.127243] pci 0000:00:01.0: PCI bridge to [bus 01]
[ 0.127244] pci 0000:00:01.0: bridge window [io 0xe000-0xefff]
[ 0.127246] pci 0000:00:01.0: bridge window [mem 0xf6000000-0xf70fffff]
[ 0.127248] pci 0000:00:01.0: bridge window [mem 0xe0000000-0xf1ffffff 64bit pref]
[ 0.127250] pci 0000:00:1c.0: PCI bridge to [bus 02]
[ 0.127252] pci 0000:00:1c.0: bridge window [io 0x2000-0x2fff]
[ 0.127256] pci 0000:00:1c.0: bridge window [mem 0xce200000-0xce3fffff]
[ 0.127259] pci 0000:00:1c.0: bridge window [mem 0xce400000-0xce5fffff 64bit pref]
[ 0.127264] pci 0000:03:00.0: BAR 6: assigned [mem 0xce600000-0xce60ffff pref]
[ 0.127265] pci 0000:00:1c.1: PCI bridge to [bus 03]
[ 0.127268] pci 0000:00:1c.1: bridge window [io 0xd000-0xdfff]
[ 0.127271] pci 0000:00:1c.1: bridge window [mem 0xce600000-0xce6fffff]
[ 0.127274] pci 0000:00:1c.1: bridge window [mem 0xf2100000-0xf21fffff 64bit pref]
[ 0.127279] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
[ 0.127280] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
[ 0.127281] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[ 0.127282] pci_bus 0000:00: resource 7 [mem 0x000d0000-0x000d3fff window]
[ 0.127283] pci_bus 0000:00: resource 8 [mem 0x000d4000-0x000d7fff window]
[ 0.127284] pci_bus 0000:00: resource 9 [mem 0x000d8000-0x000dbfff window]
[ 0.127285] pci_bus 0000:00: resource 10 [mem 0x000dc000-0x000dffff window]
[ 0.127286] pci_bus 0000:00: resource 11 [mem 0xce200000-0xfeafffff window]
[ 0.127287] pci_bus 0000:01: resource 0 [io 0xe000-0xefff]
[ 0.127288] pci_bus 0000:01: resource 1 [mem 0xf6000000-0xf70fffff]
[ 0.127289] pci_bus 0000:01: resource 2 [mem 0xe0000000-0xf1ffffff 64bit pref]
[ 0.127290] pci_bus 0000:02: resource 0 [io 0x2000-0x2fff]
[ 0.127290] pci_bus 0000:02: resource 1 [mem 0xce200000-0xce3fffff]
[ 0.127291] pci_bus 0000:02: resource 2 [mem 0xce400000-0xce5fffff 64bit pref]
[ 0.127292] pci_bus 0000:03: resource 0 [io 0xd000-0xdfff]
[ 0.127293] pci_bus 0000:03: resource 1 [mem 0xce600000-0xce6fffff]
[ 0.127294] pci_bus 0000:03: resource 2 [mem 0xf2100000-0xf21fffff 64bit pref]
[ 0.127385] NET: Registered protocol family 2
[ 0.127528] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.127652] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[ 0.127755] TCP: Hash tables configured (established 131072 bind 65536)
[ 0.127780] UDP hash table entries: 8192 (order: 6, 262144 bytes)
[ 0.127813] UDP-Lite hash table entries: 8192 (order: 6, 262144 bytes)
[ 0.127866] NET: Registered protocol family 1
[ 0.176104] pci 0000:01:00.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[ 0.176123] PCI: CLS 64 bytes, default 64
[ 0.176147] Unpacking initramfs...
[ 0.704796] Freeing initrd memory: 54268K
[ 0.704826] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 0.704828] software IO TLB [mem 0xb262f000-0xb662f000] (64MB) mapped at [ (ptrval)- (ptrval)]
[ 0.705114] Scanning for low memory corruption every 60 seconds
[ 0.705583] Initialise system trusted keyrings
[ 0.705591] Key type blacklist registered
[ 0.705625] workingset: timestamp_bits=36 max_order=22 bucket_order=0
[ 0.706320] zbud: loaded
[ 0.706633] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.706730] fuse init (API version 7.26)
[ 0.707726] Key type asymmetric registered
[ 0.707726] Asymmetric key parser 'x509' registered
[ 0.707744] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 0.707777] io scheduler noop registered
[ 0.707778] io scheduler deadline registered
[ 0.707793] io scheduler cfq registered (default)
[ 0.708281] efifb: probing for efifb
[ 0.708287] efifb: framebuffer at 0xf1000000, using 1920k, total 1920k
[ 0.708288] efifb: mode is 800x600x32, linelength=3200, pages=1
[ 0.708288] efifb: scrolling: redraw
[ 0.708289] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[ 0.709005] Console: switching to colour frame buffer device 100x37
[ 0.709644] fb0: EFI VGA frame buffer device
[ 0.709649] intel_idle: MWAIT substates: 0x42120
[ 0.709650] intel_idle: v0.4.1 model 0x3C
[ 0.709876] intel_idle: lapic_timer_reliable_states 0xffffffff
[ 0.709948] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
[ 0.709974] ACPI: Power Button [PWRB]
[ 0.709995] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
[ 0.710014] ACPI: Power Button [PWRF]
[ 0.710660] (NULL device *): hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
[ 0.710767] thermal LNXTHERM:00: registered as thermal_zone0
[ 0.710768] ACPI: Thermal Zone [TZ00] (28 C)
[ 0.710976] thermal LNXTHERM:01: registered as thermal_zone1
[ 0.710977] ACPI: Thermal Zone [TZ01] (30 C)
[ 0.711056] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
[ 0.731488] 00:08: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 0.732734] serial 0000:00:16.3: enabling device (0000 -> 0003)
[ 0.752998] 0000:00:16.3: ttyS4 at I/O 0xf0e0 (irq = 19, base_baud = 115200) is a 16550A
[ 0.753295] Linux agpgart interface v0.103
[ 0.780147] tpm_tis 00:0a: 1.2 TPM (device-id 0xB, rev-id 16)
[ 0.915241] tpm tpm0: A TPM error (7) occurred attempting to read a pcr value
[ 0.915264] tpm tpm0: TPM is disabled/deactivated (0x7)
[ 0.917228] loop: module loaded
[ 0.917351] libphy: Fixed MDIO Bus: probed
[ 0.917352] tun: Universal TUN/TAP device driver, 1.6
[ 0.917383] PPP generic driver version 2.4.2
[ 0.917412] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.917413] ehci-pci: EHCI PCI platform driver
[ 0.917529] ehci-pci 0000:00:1a.0: EHCI Host Controller
[ 0.917533] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 1
[ 0.917548] ehci-pci 0000:00:1a.0: debug port 2
[ 0.921430] ehci-pci 0000:00:1a.0: cache line size of 64 is not supported
[ 0.921444] ehci-pci 0000:00:1a.0: irq 16, io mem 0xf783c000
[ 0.936018] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[ 0.936040] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.936041] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.936042] usb usb1: Product: EHCI Host Controller
[ 0.936043] usb usb1: Manufacturer: Linux 4.15.0-45-generic ehci_hcd
[ 0.936044] usb usb1: SerialNumber: 0000:00:1a.0
[ 0.936138] hub 1-0:1.0: USB hub found
[ 0.936141] hub 1-0:1.0: 3 ports detected
[ 0.936325] ehci-pci 0000:00:1d.0: EHCI Host Controller
[ 0.936328] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 2
[ 0.936336] ehci-pci 0000:00:1d.0: debug port 2
[ 0.940229] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
[ 0.940237] ehci-pci 0000:00:1d.0: irq 23, io mem 0xf783b000
[ 0.956017] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[ 0.956034] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.956035] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.956036] usb usb2: Product: EHCI Host Controller
[ 0.956037] usb usb2: Manufacturer: Linux 4.15.0-45-generic ehci_hcd
[ 0.956037] usb usb2: SerialNumber: 0000:00:1d.0
[ 0.956116] hub 2-0:1.0: USB hub found
[ 0.956118] hub 2-0:1.0: 3 ports detected
[ 0.956221] ehci-platform: EHCI generic platform driver
[ 0.956227] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.956229] ohci-pci: OHCI PCI platform driver
[ 0.956234] ohci-platform: OHCI generic platform driver
不知道发生了什么？结果系统自动恢复了
initrd.img-4.15.0-45-generic文件自动更新
这个文件不是更新内核的时候才会更改么？sha1值不同，结果都进入了系统，是怎么回事？自动更新又是怎么回事？
LIVE CD无法进入系统的原因
这个问题也很奇怪，PE是可以正常进入的，但是好几个发行版的live cd的都进不去，包含以下几个发行版
kali和parrot都显示，加载initrd的时候出现了死机。这个很奇怪，live cd应该加载的是自身的initrd，按道理该文件应该没问题，结果出现了和故障机同样的问题kali
parrot
Porteus
systemrescue
ubuntu 18 live cd
后续
备份旧的initrd文件
把从虚拟机中拷贝出的initrd.img重命名后放到boot目录下，如果再次出现故障，可以尝试在grub下从该文件引导
备份home目录
为了防止再次出现意外，使用ubuntu自带的备份软件对home目录进行了备份，备份到移动硬盘
ghost备份
尝试对系统进行ghost备份，还未进行
安装windows双系统
ubuntu出现问题时，如果此时能经如到windows系统，或许办法和手段就会多一些，还未尝试
附录
1. [常用Windows下访问ext3和Reiser分区的工具](http://blog.51cto.com/gary407568105/213607)
2. [grub2基础教程-修订版](http://blog.51cto.com/lomomo/277613)
3. [windows to go 主板设置](https://social.technet.microsoft.com/wi ... to-go.aspx)
4. [Linux系统中修复GRUB引导故障手动引导进入操作系统](https://blog.csdn.net/lsbhjshyn/article ... s/17752681)
5. [简单的启动排错](http://www.178linux.com/60798)
6. [从失败的 Linux 引导中恢复](https://www.ibm.com/developerworks/cn/l ... index.html)
7. [Migrate to GRUB 2](https://www.ibm.com/developerworks/linu ... y/l-grub2/) 其中的示意图说明了启动的过程
8. 聊聊x86设备上的[GRUB](http://www.voidcn.com/article/p-fqzxfigg-bpk.html)
9. 详解Linux[中的日志及用日志来排查错误的方法](https://www.jb51.net/LINUXjishu/378593.html)
10. [制作Linux版PE系统](https://blog.csdn.net/kangear/article/details/51622242)
