[Arm-dev] Kernel problems on APM X-Gene

Fri Jan 26 10:16:04 UTC 2018
Jeremiah Rothschild <jeremiah at franz.com>

On Fri, Jan 26, 2018 at 02:03:54AM -0800, Jeremiah Rothschild wrote:
> Interesting. It is enabled in the failing kernel:
> 
> [root at hammer ~]# grep CONFIG_ARM64_ACPI_PARKING_PROTOCOL
> /boot/config-4.11.0-45.el7.aarch64
> CONFIG_ARM64_ACPI_PARKING_PROTOCOL=y
> 
> but it is not enabled in the working kernel that Gordan built for me:
> 
> [root at hammer ~]# grep CONFIG_ARM64_ACPI_PARKING_PROTOCOL
> /boot/config-4.9.60-1.el7.centos.aarch64
> [root at hammer ]# 

Also, it is enabled in the old 4.5 kernels that do work:

[root at hammer ~]# grep CONFIG_ARM64_ACPI_PARKING_PROTOCOL /boot/config-4.5.*
/boot/config-4.5.0-23.el7.aarch64:CONFIG_ARM64_ACPI_PARKING_PROTOCOL=y
/boot/config-4.5.0-25.el7.aarch64:CONFIG_ARM64_ACPI_PARKING_PROTOCOL=y

> > -Phong
> > 
> > +-----Original Message-----
> > +From: Arm-dev [mailto:arm-dev-bounces at centos.org] On Behalf Of Jeremiah
> > +Rothschild
> > +Sent: Friday, January 26, 2018 4:35 PM
> > +To: Conversations around CentOS on ARM hardware
> > +Subject: Re: [Arm-dev] Kernel problems on APM X-Gene
> > +
> > +On Sat, Nov 04, 2017 at 05:37:54PM +0000, Gordan Bobic wrote:
> > +> Apologies for taking so long to return to this thread, it took way
> > +> longer than expected to get to the machine and get it up and running
> > +again.
> > +
> > +Thanks for the update & apologies as well on my delayed follow-up.
> > +
> > +Last time I wrote the mailing list about my kernel problems, I was told
> > +(by jperrin at centos.org) that my system was not in a supported state
> > +because I was daisy-chaining Tianocore EFI via U-Boot. I was directed to
> > +flash the Tianocore firmware and remove U-Boot from the equation.
> > +Although I was skeptical of this answer, I finally was able to do this.
> > +
> > +Unfortunately, however, this does not change behavior. I still cannot
> > +successfully boot into any kernels beyond 4.5 unless I use 'acpi=off'.
> > +
> > +I am, interestingly enough, able to run the 4.9.60 kernel that you
> > +supplied.
> > +
> > +So:
> > +
> > +(1) My experience leads me to believe that it is still a possibility
> > +that a kernel related bug exists.
> > +
> > +(2) I am confused as to why your kernel worked. I built kernel-alt-
> > +4.11.0-22.el7a from source and it fails like the others. Were there any
> > +special steps you took in building the rpm's you supplied me?
> > +
> > +(3) Is it true that you are able to boot into the (> 4.5) distro-
> > +supplied kernels? Or have you only tried/succeeded with your custom
> > +builds?
> > +
> > +Thanks again!
> > +
> > +j
> > +
> > +> I also just updated the build to the latest 4.9.60.
> > +>
> > +> Here is a download link to both binaries and src.rpm (download the
> > +> kernel tarball from kernel.org manually to build from src.rpm):
> > +> http://ftp.redsleeve.org/pub/misc/kernel/aarch64/RPMS/
> > +> http://ftp.redsleeve.org/pub/misc/kernel/aarch64/SRPMS/
> > +>
> > +> To recap - I am also running with Tianocore EFI chain-loaded from
> > +> u-boot, and mainling 4.9.x boots just fine on it.
> > +>
> > +> No need for disabling ACPI on the kernel command line, no need to run
> > +> EFI firmware as a 1st stage boot loader, it just works.
> > +> Do feel free to try it - if that works for you but the distro supplied
> > +> 4.5.x kernel doesn't, it seems reasonably conclusive that it is the
> > +> CentOS kernel that is broken for this board.
> > +>
> > +> I'd also be interested in learning whether you have any luck getting
> > +> PCIe cards to work with it without problems - I haven't tried it since
> > +> upgrading to 4.9.x, but certainly on 4.4.x mainline the machine used
> > +> to reliably lock up as soon as the driver for the PCIe card loads.
> > +>
> > +> Gordan
> > +>
> > +>
> > +> On Fri, Sep 22, 2017 at 12:06 PM, Jeremiah Rothschild
> > +> <jeremiah at franz.com>
> > +> wrote:
> > +>
> > +> > On Fri, Sep 22, 2017 at 11:59:00AM +0100, Gordan Bobic wrote:
> > +> > > On Fri, Sep 22, 2017 at 11:54 AM, Jeremiah Rothschild <
> > +> > jeremiah at franz.com>
> > +> > > wrote:
> > +> > >
> > +> > > > On Fri, Sep 22, 2017 at 11:39:19AM +0100, Gordan Bobic wrote:
> > +> > > > > If you are interested, I'm more than happy to share my src.rpm
> > +> > > > > for
> > +> > 4.9.x,
> > +> > > > > but won't be able to get to it before tomorrow morning as the
> > +> > machine was
> > +> > > > > recently mothballed.
> > +> > > >
> > +> > > > Thanks. I actually need to test with as new of a version as I
> > +> > > > can
> > +> > because I
> > +> > > > have been experiencing an occasional "page allocation failure"
> > +> > > > kernel panic.
> > +> > > > No idea if/when that was fixed but I figure the newest version
> > +> > > > is my
> > +> > best
> > +> > > > hope.
> > +> > > >
> > +> > >
> > +> > > I've been on my own 4.9.x more or less since I got the machine, it
> > +> > > was in
> > +> > > 24/7 use, and I never experienced that issue. So it may be worth a
> > +> > > cross-check with the kernel that I'm running to see whether the
> > +> > > fault follows your machine or whether it is kernel dependent.
> > +> >
> > +> > You're right. It would be a good extra data point. Feel free to mail
> > +> > me directly once you're sorted and I'll gladly check out your 4.9
> > +build.
> > +> > Thanks
> > +> > again!
> > +> >
> > +> >
> > +> >
> > +> > > _______________________________________________
> > +> > > Arm-dev mailing list
> > +> > > Arm-dev at centos.org
> > +> > > https://lists.centos.org/mailman/listinfo/arm-dev
> > +> >
> > +> > _______________________________________________
> > +> > Arm-dev mailing list
> > +> > Arm-dev at centos.org
> > +> > https://lists.centos.org/mailman/listinfo/arm-dev
> > +> >
> > +
> > +> _______________________________________________
> > +> Arm-dev mailing list
> > +> Arm-dev at centos.org
> > +> https://lists.centos.org/mailman/listinfo/arm-dev
> > +
> > +_______________________________________________
> > +Arm-dev mailing list
> > +Arm-dev at centos.org
> > +https://lists.centos.org/mailman/listinfo/arm-dev
> > _______________________________________________
> > Arm-dev mailing list
> > Arm-dev at centos.org
> > https://lists.centos.org/mailman/listinfo/arm-dev

> EFI stub: Booting Linux Kernel...
> EFI stub: Using DTB from configuration table
> EFI stub: Exiting boot services and installing virtual address map...
> L3c Cache: 8MB
> [    0.000000] Booting Linux on physical CPU 0x0
> [    0.000000] Linux version 4.11.0-45.el7.aarch64 (mockbuild at aarch64_02.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Tue Dec 19 03:48:41 UTC 2017
> [    0.000000] Boot CPU: AArch64 Processor [500f0001]
> [    0.000000] earlycon: uart8250 at MMIO32 0x000000001c020000 (options '')
> [    0.000000] bootconsole [uart8250] enabled
> [    0.000000] efi: Getting EFI parameters from FDT:
> [    0.000000] efi: EFI v2.40 by X-Gene Mp30ar0 Board EFI Nov  2 2016 09:37:39
> [    0.000000] efi:  ACPI=0xffff0000  ACPI 2.0=0xffff0014  SMBIOS 3.0=0x807afcb000  ESRT=0x807f6bfd18 
> [    0.000000] esrt: Reserving ESRT space from 0x000000807f6bfd18 to 0x000000807f6bfd78.
> [    0.000000] cma: Reserved 512 MiB at 0x00000000c0000000
> [    0.000000] ACPI: Early table checksum verification disabled
> [    0.000000] ACPI: RSDP 0x00000000FFFF0014 000024 (v02 APM   )
> [    0.000000] ACPI: XSDT 0x00000000FFFE00E8 00006C (v01 APM    XGENE    00000003      01000013)
> [    0.000000] ACPI: FACP 0x00000000FFFB0000 00010C (v05 APM    XGENE    00000003 INTL 20140724)
> [    0.000000] ACPI: DSDT 0x00000000FFFC0000 005668 (v05 APM    APM88xxx 00000001 INTL 20140724)
> [    0.000000] ACPI: DBG2 0x00000000FFFD0000 0000AA (v00 APMC0D XGENEDBG 00000000 INTL 20140724)
> [    0.000000] ACPI: GTDT 0x00000000FFF90000 0000E0 (v02 APM    XGENE    00000001 INTL 20140724)
> [    0.000000] ACPI: MCFG 0x00000000FFF80000 00007C (v01 APM    XGENE    00000002 INTL 20140724)
> [    0.000000] ACPI: SPCR 0x00000000FFF70000 000050 (v02 APMC0D XGENESPC 00000000 INTL 20140724)
> [    0.000000] ACPI: SSDT 0x00000000FFF60000 00002D (v02 APM    XGENE    00000001 INTL 20140724)
> [    0.000000] ACPI: APIC 0x00000000FFF50000 0002A4 (v03 APM    XGENE    00000003      01000013)
> [    0.000000] ACPI: SSDT 0x00000000FFF40000 000078 (v02 REDHAT MACADDRS 00000001      01000013)
> [    0.000000] ACPI: SSDT 0x00000000FFF30000 000032 (v02 REDHAT UARTCLKS 00000001      01000013)
> [    0.000000] ACPI: SPCR: console: uart,mmio32,0x1c020000
> [    0.000000] ACPI: NUMA: Failed to initialise from firmware
> [    0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x000000807fffffff]
> [    0.000000] NUMA: Adding memblock [0x80000000 - 0x801fffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x80200000 - 0xfff2ffff] on node 0
> [    0.000000] NUMA: Adding memblock [0xfff30000 - 0xffffffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x100000000 - 0x1ffffffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x8000000000 - 0x807accffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807acd0000 - 0x807afcffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807afd0000 - 0x807ff8ffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ff90000 - 0x807ff9ffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ffa0000 - 0x807ffaffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ffb0000 - 0x807ffdffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ffe0000 - 0x807fffffff] on node 0
> [    0.000000] NUMA: Initmem setup node 0 [mem 0x80000000-0x807fffffff]
> [    0.000000] NUMA: NODE_DATA [mem 0x807fffe200-0x807fffffff]
> [    0.000000] Zone ranges:
> [    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
> [    0.000000]   Normal   [mem 0x0000000100000000-0x000000807fffffff]
> [    0.000000] Movable zone start for each node
> [    0.000000] Early memory node ranges
> [    0.000000]   node   0: [mem 0x0000000080000000-0x00000000801fffff]
> [    0.000000]   node   0: [mem 0x0000000080200000-0x00000000fff2ffff]
> [    0.000000]   node   0: [mem 0x00000000fff30000-0x00000000ffffffff]
> [    0.000000]   node   0: [mem 0x0000000100000000-0x00000001ffffffff]
> [    0.000000]   node   0: [mem 0x0000008000000000-0x000000807accffff]
> [    0.000000]   node   0: [mem 0x000000807acd0000-0x000000807afcffff]
> [    0.000000]   node   0: [mem 0x000000807afd0000-0x000000807ff8ffff]
> [    0.000000]   node   0: [mem 0x000000807ff90000-0x000000807ff9ffff]
> [    0.000000]   node   0: [mem 0x000000807ffa0000-0x000000807ffaffff]
> [    0.000000]   node   0: [mem 0x000000807ffb0000-0x000000807ffdffff]
> [    0.000000]   node   0: [mem 0x000000807ffe0000-0x000000807fffffff]
> [    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000807fffffff]
> [    0.000000] psci: is not imple mobility grouping on.  Total pages: 130944
> [    0.000000] Policy zone: Normal
> [    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.11.0-45.el7.aarch64 root=/dev/mapper/rootvg-root ro rd.md.uuid=2b289d2b:f1ce3a2e:b768d6cb:a6b2252b rd.lvm.lv=rootvg/root rd.md.uuid=f755ea06:9f0a248f:bacc7922:3458f893 rd.lvm.lv=rootvg/swap rhgb console=ttyS0,115200 earlycon=uart8250,mmio32,0x1c020000 LANG=en_US.UTF-8
> [    0.000000] PID hash table entries: 4096 (order: -1, 32768 bytes)
> [    0.000000] software IO TLB [mem 0xfbf20000-0xfff20000] (64MB) mapped at [ffff80007bf20000-ffff80007ff1ffff]
> [    0.000000] Memory: 7743936K/8388608K available (7548K kernel code, 1372K rwdata, 3200K rodata, 1280K init, 7589K bss, 120384K reserved, 524288K cma-reserved)
> [    0.000000] Virtual kernel memory layout:
> [    0.000000]     modules : 0xffff000000000000 - 0xffff000008000000   (   128 MB)
> [    0.000000]     vmalloc : 0xffff000008000000 - 0xffff7bdfffff0000   (126847 GB)
> [    0.000000]       .text : 0xffff000008080000 - 0xffff0000087e0000   (  7552 KB)
> [    0.000000]     .rodata : 0xffff0000087e0000 - 0xffff000008b10000   (  3264 KB)
> [    0.000000]       .init : 0xffff000008b10000 - 0xffff000008c50000   (  1280 KB)
> [    0.000000]       .data : 0xffff000008c50000 - 0xffff000008da7200   (  1373 KB)
> [    0.000000]        .bss : 0xffff000008da7200 - 0xffff000009510954   (  7590 KB)
> [    0.000000]     fixed   : 0xffff7fdffe7d0000 - 0xffff7fdffec00000   (  4288 KB)
> [    0.000000]     PCI I/O : 0xffff7fdffee00000 - 0xffff7fdfffe00000   (    16 MB)
> [    0.000000]     vmemmap : 0xffff7fe000000000 - 0xffff800000000000   (   128 GB maximum)
> [    0.000000]               0xffff7fe000000000 - 0xffff7fe020000000   (   512 MB actual)
> [    0.000000]     memory  : 0xffff800000000000 - 0xffff808000000000   (524288 MB)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000] 	Build-time adjustment of leaf fanout to 64.
> [    0.000000] 	RCU restricting CPUs from NR_CPUS=4096 to nr_cpu_ids=8.
> [    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=8
> [    0.000000] NR_IRQS:64 nr_irqs:64 0
> [    0.000000] GIC: Using split EOI/Deactivate mode
> [    0.000000] GICv3: No distributor detected at @ffff000008050000, giving up
> [    0.000000] arch_timer: Failed to initialize memory-mapped timer.
> [    0.000000] arch_timer: cp15 timer(s) running at 50.00MHz (phys).
> [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xb8812736b, max_idle_ns: 440795202655 ns
> [    0.000002] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every 4398046511100ns
> [    0.008346] Console: colour dummy device 80x25
> [    0.012941] Calibrating delay loop (skipped), value calculated using timer frequency.. 100.00 BogoMIPS (lpj=500000)
> [    0.023745] pid_max: default: 32768 minimum: 301
> [    0.028509] ACPI: Core revision 20170119
> [    0.036542] ACPI: 4 ACPI AML tables successfully acquired and loaded
> [    0.043140] Security Framework initialized
> [    0.047350] SELinux:  Initializing.
> [    0.051062] Dentry cache hash table entries: 1048576 (order: 7, 8388608 bytes)
> [    0.059829] Inode-cache hash table entries: 524288 (order: 6, 4194304 bytes)
> [    0.067694] Mount-cache hash table entries: 16384 (order: 1, 131072 bytes)
> [    0.074780] Mountpoint-cache hash table entries: 16384 (order: 1, 131072 bytes)
> [    0.082692] ftrace: allocating 27115 entries in 7 pages
> [    0.134464] ASID allocator initialised with 65536 entries
> [    0.140648] Remapping and enabling EFI services.
> [    0.145385]   EFI remap 0x0000000010510000 => 0000000020000000
> [    0.151378]   EFI remap 0x0000000010548000 => 0000000020018000
> [    0.157357]   EFI remap 0x0000000017000000 => 0000000020020000
> [    0.163358]   EFI remap 0x000000001c025000 => 0000000020035000
> [    0.169423]   EFI remap 0x000000807acd0000 => 0000000020040000
> [    0.175414]   EFI remap 0x000000807ace0000 => 0000000020050000
> [    0.181435]   EFI remap 0x000000807acf0000 => 0000000020060000
> [    0.187383]   EFI remap 0x000000807ad20000 => 0000000020090000
> [    0.193361]   EFI remap 0x000000807ad80000 => 00000000200f0000
> [    0.199311]   EFI remap 0x000000807ad90000 => 0000000020100000
> [    0.205348]   EFI remap 0x000000807af90000 => 0000000020300000
> [    0.211366]   EFI remap 0x000000807afa0000 => 0000000020310000
> [    0.217404]   EFI remap 0x000000807ff90000 => 0000000020330000
> [    0.223447]   EFI remap 0x000000807ffb0000 => 0000000020340000
> [    0.229612] smp: Bringing up secondary CPUs ...
> [    0.234456] Detected PIPT I-cache on CPU1
> [    0.234483] CPU1: Booted secondary processor [500f0001]
> [    0.234703] Detected PIPT I-cache on CPU2
> [    0.234723] CPU2: Booted secondary processor [500f0001]
> [    0.234937] Detected PIPT I-cache on CPU3
> [    0.234950] CPU3: Booted secondary processor [500f0001]
> [    0.235144] Detected PIPT I-cache on CPU4
> [    0.235165] CPU4: Booted secondary processor [500f0001]
> [    0.235367] Detected PIPT I-cache on CPU5
> [    0.235381] CPU5: Booted secondary processor [500f0001]
> [    0.235571] Detected PIPT I-cache on CPU6
> [    0.235591] CPU6: Booted secondary processor [500f0001]
> [    0.235795] Detected PIPT I-cache on CPU7
> [    0.235808] CPU7: Booted secondary processor [500f0001]
> [    0.235851] smp: Brought up 1 node, 8 CPUs
> [    0.308534] SMP: Total of 8 processors activated.
> [    0.313517] CPU features: detected feature: 32-bit EL0 Support
> [    0.319681] CPU: All CPU(s) started at EL2
> [    0.324899] devtmpfs: initialized
> [    0.328709] SMBIOS 3.0.0 present.
> [    0.332210] DMI: AppliedMicro X-Gene Mp30ar0 Board/X-Gene Mp30ar0 Board, BIOS 1.1.0 Nov  2 2016
> [    0.341516] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> [    0.351945] futex hash table entries: 2048 (order: 2, 262144 bytes)
> [    0.359069] pinctrl core: initialized pinctrl subsystem
> [    0.364843] NET: Registered protocol family 16
> [    0.369902] cpuidle: using governor menu
> [    0.374065] PCCT header not found.
> [    0.377719] vdso: 2 pages (1 code @ ffff000008800000, 1 data @ ffff000008c70000)
> [    0.385558] hw-breakpoint: found 4 breakpoint and 4 watchpoint registers.
> [    0.395350] DMA: preallocated 256 KiB pool for atomic allocations
> [    0.401846] ACPI: bus type PCI registered
> [    0.406092] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
> [    0.412950] Serial: AMBA PL011 UART driver
> [    0.419304] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [    0.426048] HugeTLB registered 512 MB page size, pre-allocated 0 pages
> [    0.433545] ACPI: Added _OSI(Module Device)
> [    0.437995] ACPI: Added _OSI(Processor Device)
> [    0.442688] ACPI: Added _OSI(3.0 _SCP Extensions)
> [    0.447659] ACPI: Added _OSI(Processor Aggregator Device)
> [    0.461591] ACPI: Interpreter enabled
> [    0.465479] ACPI: Using GIC for interrupt routing
> [    0.470479] ACPI: MCFG table detected, 5 entries
> [    0.477755] ACPI: Power Resource [SCVR] (off)
> [    0.490175] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
> [    0.496752] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [    0.505646] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
> [    0.514152] acpi PNP0A08:00: MCFG quirk: ECAM at [mem 0xe0d0000000-0xe0dfffffff] for [bus 00-ff] with xgene_v1_pcie_ecam_ops
> [    0.527193] acpi PNP0A08:00: [Firmware Bug]: ECAM area [mem 0xe0d0000000-0xe0dfffffff] not reserved in ACPI namespace
> [    0.538509] acpi PNP0A08:00: ECAM at [mem 0xe0d0000000-0xe0dfffffff] for [bus 00-ff]
> [    0.546726] Remapped I/O 0x000000e010000000 to [io  0x0000-0xffff window]
> [    0.554045] PCI host bridge to bus 0000:00
> [    0.558388] pci_bus 0000:00: root bus resource [io  0x0000-0xffff window]
> [    0.565595] pci_bus 0000:00: root bus resource [mem 0xe140000000-0xe17fffffff window] (bus address [0x40000000-0x7fffffff])
> [    0.577400] pci_bus 0000:00: root bus resource [mem 0xf000000000-0xffffffffff window]
> [    0.585699] pci_bus 0000:00: root bus resource [bus 00-ff]
> [    0.591751] pci 0000:00:00.0: PCI bridge to [bus 01]
> [    0.597077] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])
> [    0.603636] acpi PNP0A08:01: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [    0.612470] acpi PNP0A08:01: _OSC: platform does not support [PCIeHotplug]
> [    0.619910] acpi PNP0A08:01: _OSC: OS now controls [PME AER PCIeCapability]
> [    0.627298] acpi PNP0A08:01: MCFG quirk: ECAM at [mem 0x90d0000000-0x90dfffffff] for [bus 00-ff] with xgene_v1_pcie_ecam_ops
> [    0.640162] acpi PNP0A08:01: [Firmware Bug]: ECAM area [mem 0x90d0000000-0x90dfffffff] not reserved in ACPI namespace
> [    0.651467] acpi PNP0A08:01: ECAM at [mem 0x90d0000000-0x90dfffffff] for [bus 00-ff]
> [    0.659699] Remapped I/O 0x0000009010000000 to [io  0x10000-0x1ffff window]
> [    0.667187] PCI host bridge to bus 0002:00
> [    0.671521] pci_bus 0002:00: root bus resource [io  0x10000-0x1ffff window] (bus address [0x10000000-0x1000ffff])
> [    0.682410] pci_bus 0002:00: root bus resource [mem 0x9140000000-0x917fffffff window] (bus address [0x40000000-0x7fffffff])
> [    0.694210] pci_bus 0002:00: root bus resource [mem 0x9400000000-0x97ffffffff window]
> [    0.702491] pci_bus 0002:00: root bus resource [bus 00-ff]
> [    0.708773] pci 0002:01:00.0: disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'
> [    0.719895] pci 0002:00:00.0: BAR 14: assigned [mem 0x9140000000-0x91417fffff]
> [    0.727537] pci 0002:00:00.0: BAR 13: assigned [io  0x10000-0x10fff]
> [    0.734279] pci 0002:01:00.0: BAR 14: assigned [mem 0x9140000000-0x91417fffff]
> [    0.741937] pci 0002:01:00.0: BAR 13: assigned [io  0x10000-0x10fff]
> [    0.748667] pci 0002:02:00.0: BAR 0: assigned [mem 0x9140000000-0x9140ffffff]
> [    0.756236] pci 0002:02:00.0: BAR 1: assigned [mem 0x9141000000-0x914101ffff]
> [    0.763811] pci 0002:02:00.0: BAR 2: assigned [io  0x10000-0x1007f]
> [    0.770446] pci 0002:01:00.0: PCI bridge to [bus 02]
> [    0.775699] pci 0002:01:00.0:   bridge window [io  0x10000-0x10fff]
> [    0.782335] pci 0002:01:00.0:   bridge window [mem 0x9140000000-0x91417fffff]
> [    0.789914] pci 0002:00:00.0: PCI bridge to [bus 01-02]
> [    0.795447] pci 0002:00:00.0:   bridge window [io  0x10000-0x10fff]
> [    0.802083] pci 0002:00:00.0:   bridge window [mem 0x9140000000-0x91417fffff]
> [    0.809707] ACPI: PCI Root Bridge [PCI3] (domain 0003 [bus 00-ff])
> [    0.816279] acpi PNP0A08:02: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [    0.825164] acpi PNP0A08:02: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
> [    0.833672] acpi PNP0A08:02: MCFG quirk: ECAM at [mem 0xa0d0000000-0xa0dfffffff] for [bus 00-ff] with xgene_v1_pcie_ecam_ops
> [    0.846518] acpi PNP0A08:02: [Firmware Bug]: ECAM area [mem 0xa0d0000000-0xa0dfffffff] not reserved in ACPI namespace
> [    0.857822] acpi PNP0A08:02: ECAM at [mem 0xa0d0000000-0xa0dfffffff] for [bus 00-ff]
> [    0.866063] Remapped I/O 0x000000a010000000 to [io  0x20000-0x2ffff window]
> [    0.873565] PCI host bridge to bus 0003:00
> [    0.877899] pci_bus 0003:00: root bus resource [io  0x20000-0x2ffff window] (bus address [0x0000-0xffff])
> [    0.888044] pci_bus 0003:00: root bus resource [mem 0xa140000000-0xa17fffffff window] (bus address [0x40000000-0x7fffffff])
> [    0.899845] pci_bus 0003:00: root bus resource [mem 0xb000000000-0xbfffffffff window]
> [    0.908151] pci_bus 0003:00: root bus resource [bus 00-ff]
> [    0.914172] pci 0003:00:00.0: PCI bridge to [bus 01]
> [    0.919692] xgene-msi APMC0D0E:00: APM X-Gene PCIe MSI driver loaded
> [    0.926832] pci 0002:02:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none
> [    0.935693] pci 0002:02:00.0: vgaarb: bridge control possible
> [    0.941779] vgaarb: loaded
> [    0.944736] SCSI subsystem initialized
> [    0.948806] ACPI: bus type USB registered
> [    0.953083] usbcore: registered new interface driver usbfs
> [    0.958914] usbcore: registered new interface driver hub
> [    0.964588] usbcore: registered new device driver usb
> [    0.970044] Registered efivars operations
> [    0.974676] NetLabel: Initializing
> [    0.978274] NetLabel:  domain hash size = 128
> [    0.982881] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
> [    0.988899] NetLabel:  unlabeled traffic allowed by default
> [    0.994947] clocksource: Switched to clocksource arch_sys_counter
> [    1.020688] VFS: Disk quotas dquot_6.6.0
> [    1.024885] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
> [    1.032617] pnp: PnP ACPI init
> [    1.036471] pnp: PnP ACPI: found 0 devices
> [    1.043277] NET: Registered protocol family 2
> [    1.048136] TCP established hash table entries: 65536 (order: 3, 524288 bytes)
> [    1.055981] TCP bind hash table entries: 65536 (order: 4, 1048576 bytes)
> [    1.063453] TCP: Hash tables configured (established 65536 bind 65536)
> [    1.070440] UDP hash table entries: 4096 (order: 1, 131072 bytes)
> [    1.076974] UDP-Lite hash table entries: 4096 (order: 1, 131072 bytes)
> [    1.084038] NET: Registered protocol family 1
> [    1.088793] Unpacking initramfs...
> [    1.394774] Freeing initrd memory: 14208K
> [    1.399373] hw perfevents: enabled with armv8_pmuv3_0 PMU driver, 5 counters available
> [    1.407797] kvm [1]: 8-bit VMID
> [    1.411109] kvm [1]: IDMAP page: 809cf000
> [    1.415355] kvm [1]: HYP VA range: 800000000000:ffffffffffff
> [    1.421438] kvm [1]: Hyp mode initialized successfully
> [    1.426896] kvm [1]: GICV region size/alignment is unsafe, using trapping (reduced performance)
> [    1.436141] kvm [1]: vgic-v2 at 780cf000
> [    1.440089] kvm [1]: vgic interrupt IRQ1
> [    1.444251] kvm [1]: virtual timer IRQ3
> [    1.464992] audit: initializing netlink subsys (disabled)
> [    1.470796] audit: type=2000 audit(1.210:1): state=initialized audit_enabled=0 res=1
> [    1.470955] Initialise system trusted keyrings
> [    1.471013] workingset: timestamp_bits=44 max_order=17 bucket_order=0
> [    1.473109] zbud: loaded
> [    1.553032] NET: Registered protocol family 38
> [    1.557778] Key type asymmetric registered
> [    1.562119] Asymmetric key parser 'x509' registered
> [    1.567314] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
> [    1.575231] io scheduler noop registered
> [    1.579390] io scheduler deadline registered (default)
> [    1.584870] io scheduler cfq registered
> [    1.588942] io scheduler mq-deadline registered
> [    1.593881] atomic64_test: passed
> [    1.597701] xgene-gpio APMC0D14:00: X-Gene GPIO driver registered.
> [    1.604834] pcieport 0000:00:00.0: AER enabled with IRQ 30
> [    1.610673] pcieport 0002:00:00.0: AER enabled with IRQ 31
> [    1.616545] pcieport 0003:00:00.0: AER enabled with IRQ 32
> [    1.622387] pcieport 0000:00:00.0: Signaling PME with IRQ 30
> [    1.628399] pcieport 0002:00:00.0: Signaling PME with IRQ 31
> [    1.634413] pcieport 0003:00:00.0: Signaling PME with IRQ 32
> [    1.640553] efifb: probing for efifb
> [    1.644335] efifb: framebuffer at 0x40000000, using 1216k, total 1200k
> [    1.651255] efifb: mode is 640x480x32, linelength=2560, pages=1
> [    1.657514] efifb: scrolling: redraw
> [    1.661302] efifb: Truecolor: size=8:8:8:8, shift=24:0:8:16
> [    1.668723] Console: switching to colour frame buffer device 80x30
> [    1.676642] fb0: EFI VGA frame buffer device
> [    1.681302] acpi ACPI0007:00: CPPC data invalid or not present
> [    1.687504] acpi ACPI0007:01: CPPC data invalid or not present
> [    1.693696] acpi ACPI0007:02: CPPC data invalid or not present
> [    1.699865] acpi ACPI0007:03: CPPC data invalid or not present
> [    1.706051] acpi ACPI0007:04: CPPC data invalid or not present
> [    1.712232] acpi ACPI0007:05: CPPC data invalid or not present
> [    1.718417] acpi ACPI0007:06: CPPC data invalid or not present
> [    1.724598] acpi ACPI0007:07: CPPC data invalid or not present
> [    1.730934] GHES: HEST is not enabled!
> [    1.734915] ACPI GTDT: [Firmware Bug]: failed to get the Watchdog base address.
> [    1.742794] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    1.775138] console [ttyS0] disabled
> [    1.799055] APMC0D08:00: ttyS0 at MMIO 0x1c020000 (irq = 33, base_baud = 3125000) is a U6_16550A
> [    0.000000] Booting Linux on physical CPU 0x0
> [    0.000000] Linux version 4.11.0-45.el7.aarch64 (mockbuild at aarch64_02.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Tue Dec 19 03:48:41 UTC 2017
> [    0.000000] Boot CPU: AArch64 Processor [500f0001]
> [    0.000000] earlycon: uart8250 at MMIO32 0x000000001c020000 (options '')
> [    0.000000] bootconsole [uart8250] enabled
> [    0.000000] efi: Getting EFI parameters from FDT:
> [    0.000000] efi: EFI v2.40 by X-Gene Mp30ar0 Board EFI Nov  2 2016 09:37:39
> [    0.000000] efi:  ACPI=0xffff0000  ACPI 2.0=0xffff0014  SMBIOS 3.0=0x807afcb000  ESRT=0x807f6bfd18 
> [    0.000000] esrt: Reserving ESRT space from 0x000000807f6bfd18 to 0x000000807f6bfd78.
> [    0.000000] cma: Reserved 512 MiB at 0x00000000c0000000
> [    0.000000] ACPI: Early table checksum verification disabled
> [    0.000000] ACPI: RSDP 0x00000000FFFF0014 000024 (v02 APM   )
> [    0.000000] ACPI: XSDT 0x00000000FFFE00E8 00006C (v01 APM    XGENE    00000003      01000013)
> [    0.000000] ACPI: FACP 0x00000000FFFB0000 00010C (v05 APM    XGENE    00000003 INTL 20140724)
> [    0.000000] ACPI: DSDT 0x00000000FFFC0000 005668 (v05 APM    APM88xxx 00000001 INTL 20140724)
> [    0.000000] ACPI: DBG2 0x00000000FFFD0000 0000AA (v00 APMC0D XGENEDBG 00000000 INTL 20140724)
> [    0.000000] ACPI: GTDT 0x00000000FFF90000 0000E0 (v02 APM    XGENE    00000001 INTL 20140724)
> [    0.000000] ACPI: MCFG 0x00000000FFF80000 00007C (v01 APM    XGENE    00000002 INTL 20140724)
> [    0.000000] ACPI: SPCR 0x00000000FFF70000 000050 (v02 APMC0D XGENESPC 00000000 INTL 20140724)
> [    0.000000] ACPI: SSDT 0x00000000FFF60000 00002D (v02 APM    XGENE    00000001 INTL 20140724)
> [    0.000000] ACPI: APIC 0x00000000FFF50000 0002A4 (v03 APM    XGENE    00000003      01000013)
> [    0.000000] ACPI: SSDT 0x00000000FFF40000 000078 (v02 REDHAT MACADDRS 00000001      01000013)
> [    0.000000] ACPI: SSDT 0x00000000FFF30000 000032 (v02 REDHAT UARTCLKS 00000001      01000013)
> [    0.000000] ACPI: SPCR: console: uart,mmio32,0x1c020000
> [    0.000000] ACPI: NUMA: Failed to initialise from firmware
> [    0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x000000807fffffff]
> [    0.000000] NUMA: Adding memblock [0x80000000 - 0x801fffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x80200000 - 0xfff2ffff] on node 0
> [    0.000000] NUMA: Adding memblock [0xfff30000 - 0xffffffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x100000000 - 0x1ffffffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x8000000000 - 0x807accffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807acd0000 - 0x807afcffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807afd0000 - 0x807ff8ffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ff90000 - 0x807ff9ffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ffa0000 - 0x807ffaffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ffb0000 - 0x807ffdffff] on node 0
> [    0.000000] NUMA: Adding memblock [0x807ffe0000 - 0x807fffffff] on node 0
> [    0.000000] NUMA: Initmem setup node 0 [mem 0x80000000-0x807fffffff]
> [    0.000000] NUMA: NODE_DATA [mem 0x807fffe200-0x807fffffff]
> [    0.000000] Zone ranges:
> [    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
> [    0.000000]   Normal   [mem 0x0000000100000000-0x000000807fffffff]
> [    0.000000] Movable zone start for each node
> [    0.000000] Early memory node ranges
> [    0.000000]   node   0: [mem 0x0000000080000000-0x00000000801fffff]
> [    0.000000]   node   0: [mem 0x0000000080200000-0x00000000fff2ffff]
> [    0.000000]   node   0: [mem 0x00000000fff30000-0x00000000ffffffff]
> [    0.000000]   node   0: [mem 0x0000000100000000-0x00000001ffffffff]
> [    0.000000]   node   0: [mem 0x0000008000000000-0x000000807accffff]
> [    0.000000]   node   0: [mem 0x000000807acd0000-0x000000807afcffff]
> [    0.000000]   node   0: [mem 0x000000807afd0000-0x000000807ff8ffff]
> [    0.000000]   node   0: [mem 0x000000807ff90000-0x000000807ff9ffff]
> [    0.000000]   node   0: [mem 0x000000807ffa0000-0x000000807ffaffff]
> [    0.000000]   node   0: [mem 0x000000807ffb0000-0x000000807ffdffff]
> [    0.000000]   node   0: [mem 0x000000807ffe0000-0x000000807fffffff]
> [    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000807fffffff]
> [    0.000000] psci: is not implemented in ACPI.
> [    0.000000] percpu: Embedded 3 pages/cpu @ffff807fffda0000 s133016 r8192 d55400 u196608
> [    0.000000] Detected PIPT I-cache on CPU0
> [    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total pages: 130944
> [    0.000000] Policy zone: Normal
> [    0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.11.0-45.el7.aarch64 root=/dev/mapper/rootvg-root ro rd.md.uuid=2b289d2b:f1ce3a2e:b768d6cb:a6b2252b rd.lvm.lv=rootvg/root rd.md.uuid=f755ea06:9f0a248f:bacc7922:3458f893 rd.lvm.lv=rootvg/swap rhgb console=ttyS0,115200 earlycon=uart8250,mmio32,0x1c020000 LANG=en_US.UTF-8
> [    0.000000] PID hash table entries: 4096 (order: -1, 32768 bytes)
> [    0.000000] software IO TLB [mem 0xfbf20000-0xfff20000] (64MB) mapped at [ffff80007bf20000-ffff80007ff1ffff]
> [    0.000000] Memory: 7743936K/8388608K available (7548K kernel code, 1372K rwdata, 3200K rodata, 1280K init, 7589K bss, 120384K reserved, 524288K cma-reserved)
> [    0.000000] Virtual kernel memory layout:
> [    0.000000]     modules : 0xffff000000000000 - 0xffff000008000000   (   128 MB)
> [    0.000000]     vmalloc : 0xffff000008000000 - 0xffff7bdfffff0000   (126847 GB)
> [    0.000000]       .text : 0xffff000008080000 - 0xffff0000087e0000   (  7552 KB)
> [    0.000000]     .rodata : 0xffff0000087e0000 - 0xffff000008b10000   (  3264 KB)
> [    0.000000]       .init : 0xffff000008b10000 - 0xffff000008c50000   (  1280 KB)
> [    0.000000]       .data : 0xffff000008c50000 - 0xffff000008da7200   (  1373 KB)
> [    0.000000]        .bss : 0xffff000008da7200 - 0xffff000009510954   (  7590 KB)
> [    0.000000]     fixed   : 0xffff7fdffe7d0000 - 0xffff7fdffec00000   (  4288 KB)
> [    0.000000]     PCI I/O : 0xffff7fdffee00000 - 0xffff7fdfffe00000   (    16 MB)
> [    0.000000]     vmemmap : 0xffff7fe000000000 - 0xffff800000000000   (   128 GB maximum)
> [    0.000000]               0xffff7fe000000000 - 0xffff7fe020000000   (   512 MB actual)
> [    0.000000]     memory  : 0xffff800000000000 - 0xffff808000000000   (524288 MB)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000] 	Build-time adjustment of leaf fanout to 64.
> [    0.000000] 	RCU restricting CPUs from NR_CPUS=4096 to nr_cpu_ids=8.
> [    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=8
> [    0.000000] NR_IRQS:64 nr_irqs:64 0
> [    0.000000] GIC: Using split EOI/Deactivate mode
> [    0.000000] GICv3: No distributor detected at @ffff000008050000, giving up
> [    0.000000] arch_timer: Failed to initialize memory-mapped timer.
> [    0.000000] arch_timer: cp15 timer(s) running at 50.00MHz (phys).
> [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xb8812736b, max_idle_ns: 440795202655 ns
> [    0.000002] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every 4398046511100ns
> [    0.008346] Console: colour dummy device 80x25
> [    0.012941] Calibrating delay loop (skipped), value calculated using timer frequency.. 100.00 BogoMIPS (lpj=500000)
> [    0.023745] pid_max: default: 32768 minimum: 301
> [    0.028509] ACPI: Core revision 20170119
> [    0.036542] ACPI: 4 ACPI AML tables successfully acquired and loaded
> [    0.043140] Security Framework initialized
> [    0.047350] SELinux:  Initializing.
> [    0.051062] Dentry cache hash table entries: 1048576 (order: 7, 8388608 bytes)
> [    0.059829] Inode-cache hash table entries: 524288 (order: 6, 4194304 bytes)
> [    0.067694] Mount-cache hash table entries: 16384 (order: 1, 131072 bytes)
> [    0.074780] Mountpoint-cache hash table entries: 16384 (order: 1, 131072 bytes)
> [    0.082692] ftrace: allocating 27115 entries in 7 pages
> [    0.134464] ASID allocator initialised with 65536 entries
> [    0.140648] Remapping and enabling EFI services.
> [    0.145385]   EFI remap 0x0000000010510000 => 0000000020000000
> [    0.151378]   EFI remap 0x0000000010548000 => 0000000020018000
> [    0.157357]   EFI remap 0x0000000017000000 => 0000000020020000
> [    0.163358]   EFI remap 0x000000001c025000 => 0000000020035000
> [    0.169423]   EFI remap 0x000000807acd0000 => 0000000020040000
> [    0.175414]   EFI remap 0x000000807ace0000 => 0000000020050000
> [    0.181435]   EFI remap 0x000000807acf0000 => 0000000020060000
> [    0.187383]   EFI remap 0x000000807ad20000 => 0000000020090000
> [    0.193361]   EFI remap 0x000000807ad80000 => 00000000200f0000
> [    0.199311]   EFI remap 0x000000807ad90000 => 0000000020100000
> [    0.205348]   EFI remap 0x000000807af90000 => 0000000020300000
> [    0.211366]   EFI remap 0x000000807afa0000 => 0000000020310000
> [    0.217404]   EFI remap 0x000000807ff90000 => 0000000020330000
> [    0.223447]   EFI remap 0x000000807ffb0000 => 0000000020340000
> [    0.229612] smp: Bringing up secondary CPUs ...
> [    0.234456] Detected PIPT I-cache on CPU1
> [    0.234483] CPU1: Booted secondary processor [500f0001]
> [    0.234703] Detected PIPT I-cache on CPU2
> [    0.234723] CPU2: Booted secondary processor [500f0001]
> [    0.234937] Detected PIPT I-cache on CPU3
> [    0.234950] CPU3: Booted secondary processor [500f0001]
> [    0.235144] Detected PIPT I-cache on CPU4
> [    0.235165] CPU4: Booted secondary processor [500f0001]
> [    0.235367] Detected PIPT I-cache on CPU5
> [    0.235381] CPU5: Booted secondary processor [500f0001]
> [    0.235571] Detected PIPT I-cache on CPU6
> [    0.235591] CPU6: Booted secondary processor [500f0001]
> [    0.235795] Detected PIPT I-cache on CPU7
> [    0.235808] CPU7: Booted secondary processor [500f0001]
> [    0.235851] smp: Brought up 1 node, 8 CPUs
> [    0.308534] SMP: Total of 8 processors activated.
> [    0.313517] CPU features: detected feature: 32-bit EL0 Support
> [    0.319681] CPU: All CPU(s) started at EL2
> [    0.324899] devtmpfs: initialized
> [    0.328709] SMBIOS 3.0.0 present.
> [    0.332210] DMI: AppliedMicro X-Gene Mp30ar0 Board/X-Gene Mp30ar0 Board, BIOS 1.1.0 Nov  2 2016
> [    0.341516] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> [    0.351945] futex hash table entries: 2048 (order: 2, 262144 bytes)
> [    0.359069] pinctrl core: initialized pinctrl subsystem
> [    0.364843] NET: Registered protocol family 16
> [    0.369902] cpuidle: using governor menu
> [    0.374065] PCCT header not found.
> [    0.377719] vdso: 2 pages (1 code @ ffff000008800000, 1 data @ ffff000008c70000)
> [    0.385558] hw-breakpoint: found 4 breakpoint and 4 watchpoint registers.
> [    0.395350] DMA: preallocated 256 KiB pool for atomic allocations
> [    0.401846] ACPI: bus type PCI registered
> [    0.406092] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
> [    0.412950] Serial: AMBA PL011 UART driver
> [    0.419304] HugeTLB registered 2 MB page size, pre-allocated 0 pages
> [    0.426048] HugeTLB registePI: Added _OSI(Processor Aggregator Device)
> [    0.461591] ACPI: Interpreter enabled
> [    0.465479] ACPI: Using GIC for interrupt routing
> [    0.470479] ACPI: MCFG table detected, 5 entries
> [    0.477755] ACPI: Power Resource [SCVR] (off)
> [    0.490175] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
> [    0.496752] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [    0.505646] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
> [    0.514152] acpi PNP0A08:00: MCFG quirk: ECAM at [mem 0xe0d0000000-0xe0dfffffff] for [bus 00-ff] with xgene_v1_pcie_ecam_ops
> [    0.527193] acpi PNP0A08:00: [Firmware Bug]: ECAM area [mem 0xe0d0000000-0xe0dfffffff] not reserved in ACPI namespace
> [    0.538509] acpi PNP0A08:00: ECAM at [mem 0xe0d0000000-0xe0dfffffff] for [bus 00-ff]
> [    0.546726] Remapped I/O 0x000000e010000000 to [io  0x0000-0xffff window]
> [    0.554045] PCI host bridge to bus 0000:00
> [    0.558388] pci_bus 0000:00: root bus resource [io  0x0000-0xffff window]
> [    0.565595] pci_bus 0000:00: root bus resource [mem 0xe140000000-0xe17fffffff window] (bus address [0x40000000-0x7fffffff])
> [    0.577400] pci_bus 0000:00: root bus resource [mem 0xf000000000-0xffffffffff window]
> [    0.585699] pci_bus 0000:00: root bus resource [bus 00-ff]
> [    0.591751] pci 0000:00:00.0: PCI bridge to [bus 01]
> [    0.597077] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])
> [    0.603636] acpi PNP0A08:01: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [    0.612470] acpi PNP0A08:01: _OSC: platform does not support [PCIeHotplug]
> [    0.619910] acpi PNP0A08:01: _OSC: OS now controls [PME AER PCIeCapability]
> [    0.627298] acpi PNP0A08:01: MCFG quirk: ECAM at [mem 0x90d0000000-0x90dfffffff] for [bus 00-ff] with xgene_v1_pcie_ecam_ops
> [    0.640162] acpi PNP0A08:01: [Firmware Bug]: ECAM area [mem 0x90d0000000-0x90dfffffff] not reserved in ACPI namespace
> [    0.651467] acpi PNP0A08:01: ECAM at [mem 0x90d0000000-0x90dfffffff] for [bus 00-ff]
> [    0.659699] Remapped I/O 0x0000009010000000 to [io  0x10000-0x1ffff window]
> [    0.667187] PCI host bridge to bus 0002:00
> [    0.671521] pci_bus 0002:00: root bus resource [io  0x10000-0x1ffff window] (bus address [0x10000000-0x1000ffff])
> [    0.682410] pci_bus 0002:00: root bus resource [mem 0x9140000000-0x917fffffff window] (bus address [0x40000000-0x7fffffff])
> [    0.694210] pci_bus 0002:00: root bus resource [mem 0x9400000000-0x97ffffffff window]
> [    0.702491] pci_bus 0002:00: root bus resource [bus 00-ff]
> [    0.708773] pci 0002:01:00.0: disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'
> [    0.719895] pci 0002:00:00.0: BAR 14: assigned [mem 0x9140000000-0x91417fffff]
> [    0.727537] pci 0002:00:00.0: BAR 13: assigned [io  0x10000-0x10fff]
> [    0.734279] pci 0002:01:00.0: BAR 14: assigned [mem 0x9140000000-0x91417fffff]
> [    0.741937] pci 0002:01:00.0: BAR 13: assigned [io  0x10000-0x10fff]
> [    0.748667] pci 0002:02:00.0: BAR 0: assigned [mem 0x9140000000-0x9140ffffff]
> [    0.756236] pci 0002:02:00.0: BAR 1: assigned [mem 0x9141000000-0x914101ffff]
> [    0.763811] pci 0002:02:00.0: BAR 2: assigned [io  0x10000-0x1007f]
> [    0.770446] pci 0002:01:00.0: PCI bridge to [bus 02]
> [    0.775699] pci 0002:01:00.0:   bridge window [io  0x10000-0x10fff]
> [    0.782335] pci 0002:01:00.0:   bridge window [mem 0x9140000000-0x91417fffff]
> [    0.789914] pci 0002:00:00.0: PCI bridge to [bus 01-02]
> [    0.795447] pci 0002:00:00.0:   bridge window [io  0x10000-0x10fff]
> [    0.802083] pci 0002:00:00.0:   bridge window [mem 0x9140000000-0x91417fffff]
> [    0.809707] ACPI: PCI Root Bridge [PCI3] (domain 0003 [bus 00-ff])
> [    0.816279] acpi PNP0A08:02: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
> [    0.825164] acpi PNP0A08:02: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
> [    0.833672] acpi PNP0A08:02: MCFG quirk: ECAM at [mem 0xa0d0000000-0xa0dfffffff] for [bus 00-ff] with xgene_v1_pcie_ecam_ops
> [    0.846518] acpi PNP0A08:02: [Firmware Bug]: ECAM area [mem 0xa0d0000000-0xa0dfffffff] not reserved in ACPI namespace
> [    0.857822] acpi PNP0A08:02: ECAM at [mem 0xa0d0000000-0xa0dfffffff] for [bus 00-ff]
> [    0.866063] Remapped I/O 0x000000a010000000 to [io  0x20000-0x2ffff window]
> [    0.873565] PCI host bridge to bus 0003:00
> [    0.877899] pci_bus 0003:00: root bus resource [io  0x20000-0x2ffff window] (bus address [0x0000-0xffff])
> [    0.888044] pci_bus 0003:00: root bus resource [mem 0xa140000000-0xa17fffffff window] (bus address [0x40000000-0x7fffffff])
> [    0.899845] pci_bus 0003:00: root bus resource [mem 0xb000000000-0xbfffffffff window]
> [    0.908151] pci_bus 0003:00: root bus resource [bus 00-ff]
> [    0.914172] pci 0003:00:00.0: PCI bridge to [bus 01]
> [    0.919692] xgene-msi APMC0D0E:00: APM X-Gene PCIe MSI driver loaded
> [    0.926832] pci 0002:02:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none
> [    0.935693] pci 0002:02:00.0: vgaarb: bridge control possible
> [    0.941779] vgaarb: loaded
> [    0.944736] SCSI subsystem initialized
> [    0.948806] ACPI: bus type USB registered
> [    0.953083] usbcore: registered new interface driver usbfs
> [    0.958914] usbcore: registered new interface driver hub
> [    0.964588] usbcore: registered new device driver usb
> [    0.970044] Registered efivars operations
> [    0.974676] NetLabel: Initializing
> [    0.978274] NetLabel:  domain hash size = 128
> [    0.982881] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
> [    0.988899] NetLabel:  unlabeled traffic allowed by default
> [    0.994947] clocksource: Switched to clocksource arch_sys_counter
> [    1.020688] VFS: Disk quotas dquot_6.6.0
> [    1.024885] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
> [    1.032617] pnp: PnP ACPI init
> [    1.036471] pnp: PnP ACPI: found 0 devices
> [    1.043277] NET: Registered protocol family 2
> [    1.048136] TCP established hash table entries: 65536 (order: 3, 524288 bytes)
> [    1.055981] TCP bind hash table entries: 65536 (order: 4, 1048576 bytes)
> [    1.063453] TCP: Hash tables configured (established 65536 bind 65536)
> [    1.070440] UDP hash table entries: 4096 (order: 1, 131072 bytes)
> [    1.076974] UDP-Lite hash table entries: 4096 (order: 1, 131072 bytes)
> [    1.084038] NET: Registered protocol family 1
> [    1.088793] Unpacking initramfs...
> [    1.394774] Freeing initrd memory: 14208K
> [    1.399373] hw perfevents: enabled with armv8_pmuv3_0 PMU driver, 5 counters available
> [    1.407797] kvm [1]: 8-bit VMID
> [    1.411109] kvm [1]: IDMAP page: 809cf000
> [    1.415355] kvm [1]: HYP VA range: 800000000000:ffffffffffff
> [    1.421438] kvm [1]: Hyp mode initialized successfully
> [    1.426896] kvm [1]: GICV region size/alignment is unsafe, using trapping (reduced performance)
> [    1.436141] kvm [1]: vgic-v2 at 780cf000
> [    1.440089] kvm [1]: vgic interrupt IRQ1
> [    1.444251] kvm [1]: virtual timer IRQ3
> [    1.464992] audit: initializing netlink subsys (disabled)
> [    1.470796] audit: type=2000 audit(1.210:1): state=initialized audit_enabled=0 res=1
> [    1.470955] Initialise system trusted keyrings
> [    1.471013] workingset: timestamp_bits=44 max_order=17 bucket_order=0
> [    1.473109] zbud: loaded
> [    1.553032] NET: Registered protocol family 38
> [    1.557778] Key type asymmetric registered
> [    1.562119] Asymmetric key parser 'x509' registered
> [    1.567314] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
> [    1.575231] io scheduler noop registered
> [    1.579390] io scheduler deadline registered (default)
> [    1.584870] io scheduler cfq registered
> [    1.588942] io scheduler mq-deadline registered
> [    1.593881] atomic64_test: passed
> [    1.597701] xgene-gpio APMC0D14:00: X-Gene GPIO driver registered.
> [    1.604834] pcieport 0000:00:00.0: AER enabled with IRQ 30
> [    1.610673] pcieport 0002:00:00.0: AER enabled with IRQ 31
> [    1.616545] pcieport 0003:00:00.0: AER enabled with IRQ 32
> [    1.622387] pcieport 0000:00:00.0: Signaling PME with IRQ 30
> [    1.628399] pcieport 0002:00:00.0: Signaling PME with IRQ 31
> [    1.634413] pcieport 0003:00:00.0: Signaling PME with IRQ 32
> [    1.640553] efifb: probing for efifb
> [    1.644335] efifb: framebuffer at 0x40000000, using 1216k, total 1200k
> [    1.651255] efifb: mode is 640x480x32, linelength=2560, pages=1
> [    1.657514] efifb: scrolling: redraw
> [    1.661302] efifb: Truecolor: size=8:8:8:8, shift=24:0:8:16
> [    1.668723] Console: switching to colour frame buffer device 80x30
> [    1.676642] fb0: EFI VGA frame buffer device
> [    1.681302] acpi ACPI0007:00: CPPC data invalid or not present
> [    1.687504] acpi ACPI0007:01: CPPC data invalid or not present
> [    1.693696] acpi ACPI0007:02: CPPC data invalid or not present
> [    1.699865] acpi ACPI0007:03: CPPC data invalid or not present
> [    1.706051] acpi ACPI0007:04: CPPC data invalid or not present
> [    1.712232] acpi ACPI0007:05: CPPC data invalid or not present
> [    1.718417] acpi ACPI0007:06: CPPC data invalid or not present
> [    1.724598] acpi ACPI0007:07: CPPC data invalid or not present
> [    1.730934] GHES: HEST is not enabled!
> [    1.734915] ACPI GTDT: [Firmware Bug]: failed to get the Watchdog base address.
> [    1.742794] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    1.775138] console [ttyS0] disabled
> [    1.799055] APMC0D08:00: ttyS0 at MMIO 0x1c020000 (irq = 33, base_baud = 3125000) is a U6_16550A
> [    3.620494] console [ttyS0] enabled
> [    3.620494] console [ttyS0] enabled
> [    3.648008] APMC0D08:01: ttyS1 at MMIO 0x1c021000 (irq = 34, base_baud = 3125000) is a U6_16550A
> [    3.648008] APMC0D08:01: ttyS1 at MMIO 0x1c021000 (irq = 34, base_baud = 3125000) is a U6_16550A
> [    3.686451] APMC0D08:02: ttyS2 at MMIO 0x1c022000 (irq = 35, base_baud = 3125000) is a U6_16550A
> [    3.686451] APMC0D08:02: ttyS2 at MMIO 0x1c022000 (irq = 35, base_baud = 3125000) is a U6_16550A
> [    3.724876] APMC0D08:03: ttyS3 at MMIO 0x1c023000 (irq = 36, base_baud = 3125000) is a U6_16550A
> [    3.724876] APMC0D08:03: ttyS3 at MMIO 0x1c023000 (irq = 36, base_baud = 3125000) is a U6_16550A
> [    3.743860] rdac: device handler registered
> [    3.743860] rdac: device handler registered
> [    3.752523] hp_sw: device handler registered
> [    3.752523] hp_sw: device handler registered
> [    3.761295] emc: device handler registered
> [    3.761295] emc: device handler registered
> [    3.769786] alua: device handler registered
> [    3.769786] alua: device handler registered
> [    3.778554] libphy: Fixed MDIO Bus: probed
> [    3.778554] libphy: Fixed MDIO Bus: probed
> [    3.787093] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    3.787093] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    3.800497] ehci-pci: EHCI PCI platform driver
> [    3.800497] ehci-pci: EHCI PCI platform driver
> [    3.809613] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    3.809613] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    3.822301] ohci-pci: OHCI PCI platform driver
> [    3.822301] ohci-pci: OHCI PCI platform driver
> [    3.831437] uhci_hcd: USB Universal Host Controller Interface driver
> [    3.831437] uhci_hcd: USB Universal Host Controller Interface driver
> [    3.844583] xhci-hcd APMC0D03:00: xHCI Host Controller
> [    3.844583] xhci-hcd APMC0D03:00: xHCI Host Controller
> [    3.855201] xhci-hcd APMC0D03:00: new USB bus registered, assigned bus number 1
> [    3.855201] xhci-hcd APMC0D03:00: new USB bus registered, assigned bus number 1
> [    3.870420] xhci-hcd APMC0D03:00: hcc params 0x0220f06d hci version 0x100 quirks 0x00010010
> [    3.870420] xhci-hcd APMC0D03:00: hcc params 0x0220f06d hci version 0x100 quirks 0x00010010
> [    3.887600] xhci-hcd APMC0D03:00: irq 8, io mem 0x19000000
> [    3.887600] xhci-hcd APMC0D03:00: irq 8, io mem 0x19000000
> [    3.898927] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [    3.898927] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [    3.912856] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    3.912856] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    3.927698] usb usb1: Product: xHCI Host Controller
> [    3.927698] usb usb1: Product: xHCI Host Controller
> [    3.937711] usb usb1: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    3.937711] usb usb1: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    3.951482] usb usb1: SerialNumber: APMC0D03:00
> [    3.951482] usb usb1: SerialNumber: APMC0D03:00
> [    3.960963] hub 1-0:1.0: USB hub found
> [    3.960963] hub 1-0:1.0: USB hub found
> [    3.968677] hub 1-0:1.0: 1 port detected
> [    3.968677] hub 1-0:1.0: 1 port detected
> [    3.976827] xhci-hcd APMC0D03:00: xHCI Host Controller
> [    3.976827] xhci-hcd APMC0D03:00: xHCI Host Controller
> [    3.987450] xhci-hcd APMC0D03:00: new USB bus registered, assigned bus number 2
> [    3.987450] xhci-hcd APMC0D03:00: new USB bus registered, assigned bus number 2
> [    4.002491] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
> [    4.002491] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
> [    4.019161] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
> [    4.019161] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
> [    4.033107] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    4.033107] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    4.047941] usb usb2: Product: xHCI Host Controller
> [    4.047941] usb usb2: Product: xHCI Host Controller
> [    4.057955] usb usb2: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    4.057955] usb usb2: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    4.071726] usb usb2: SerialNumber: APMC0D03:00
> [    4.071726] usb usb2: SerialNumber: APMC0D03:00
> [    4.081174] hub 2-0:1.0: USB hub found
> [    4.081174] hub 2-0:1.0: USB hub found
> [    4.088904] hub 2-0:1.0: 1 port detected
> [    4.088904] hub 2-0:1.0: 1 port detected
> [    4.097088] xhci-hcd APMC0D03:01: xHCI Host Controller
> [    4.097088] xhci-hcd APMC0D03:01: xHCI Host Controller
> [    4.107690] xhci-hcd APMC0D03:01: new USB bus registered, assigned bus number 3
> [    4.107690] xhci-hcd APMC0D03:01: new USB bus registered, assigned bus number 3
> [    4.122850] xhci-hcd APMC0D03:01: hcc params 0x0220f06d hci version 0x100 quirks 0x00010010
> [    4.122850] xhci-hcd APMC0D03:01: hcc params 0x0220f06d hci version 0x100 quirks 0x00010010
> [    4.140039] xhci-hcd APMC0D03:01: irq 9, io mem 0x19800000
> [    4.140039] xhci-hcd APMC0D03:01: irq 9, io mem 0x19800000
> [    4.151359] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
> [    4.151359] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
> [    4.165298] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    4.165298] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    4.180131] usb usb3: Product: xHCI Host Controller
> [    4.180131] usb usb3: Product: xHCI Host Controller
> [    4.190153] usb usb3: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    4.190153] usb usb3: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    4.203919] usb usb3: SerialNumber: APMC0D03:01
> [    4.203919] usb usb3: SerialNumber: APMC0D03:01
> [    4.213494] hub 3-0:1.0: USB hub found
> [    4.213494] hub 3-0:1.0: USB hub found
> [    4.221206] hub 3-0:1.0: 1 port detected
> [    4.221206] hub 3-0:1.0: 1 port detected
> [    4.229351] xhci-hcd APMC0D03:01: xHCI Host Controller
> [    4.229351] xhci-hcd APMC0D03:01: xHCI Host Controller
> [    4.239951] xhci-hcd APMC0D03:01: new USB bus registered, assigned bus number 4
> [    4.239951] xhci-hcd APMC0D03:01: new USB bus registered, assigned bus number 4
> [    4.254999] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
> [    4.254999] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
> [    4.271663] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
> [    4.271663] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
> [    4.285613] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    4.285613] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    4.300457] usb usb4: Product: xHCI Host Controller
> [    4.300457] usb usb4: Product: xHCI Host Controller
> [    4.310464] usb usb4: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    4.310464] usb usb4: Manufacturer: Linux 4.11.0-45.el7.aarch64 xhci-hcd
> [    4.324236] usb usb4: SerialNumber: APMC0D03:01
> [    4.324236] usb usb4: SerialNumber: APMC0D03:01
> [    4.333712] hub 4-0:1.0: USB hub found
> [    4.333712] hub 4-0:1.0: USB hub found
> [    4.341444] hub 4-0:1.0: 1 port detected
> [    4.341444] hub 4-0:1.0: 1 port detected
> [    4.349643] usbcore: registered new interface driver usbserial
> [    4.349643] usbcore: registered new interface driver usbserial
> [    4.361644] usbcore: registered new interface driver usbserial_generic
> [    4.361644] usbcore: registered new interface driver usbserial_generic
> [    4.375055] usbserial: USB Serial support registered for generic
> [    4.375055] usbserial: USB Serial support registered for generic
> [    4.387444] mousedev: PS/2 mouse device common for all mice
> [    4.387444] mousedev: PS/2 mouse device common for all mice
> [    4.394961] usb 1-1: new high-speed USB device number 2 using xhci-hcd
> [    4.394961] usb 1-1: new high-speed USB device number 2 using xhci-hcd
> [    4.412427] rtc-efi rtc-efi: rtc core: registered rtc-efi as rtc0
> [    4.412427] rtc-efi rtc-efi: rtc core: registered rtc-efi as rtc0
> [    4.425250] EFI Variables Facility v0.08 2004-May-17
> [    4.425250] EFI Variables Facility v0.08 2004-May-17
> [    4.435637] hidraw: raw HID events driver (C) Jiri Kosina
> [    4.435637] hidraw: raw HID events driver (C) Jiri Kosina
> [    4.446809] usbcore: registered new interface driver usbhid
> [    4.446809] usbcore: registered new interface driver usbhid
> [    4.458264] usbhid: USB HID core driver
> [    4.458264] usbhid: USB HID core driver
> [    4.466275] drop_monitor: Initializing network drop monitor service
> [    4.466275] drop_monitor: Initializing network drop monitor service
> [    4.479235] Initializing XFRM netlink socket
> [    4.479235] Initializing XFRM netlink socket
> [    4.488159] NET: Registered protocol family 10
> [    4.488159] NET: Registered protocol family 10
> [    4.497643] Segment Routing with IPv6
> [    4.497643] Segment Routing with IPv6
> [    4.505184] NET: Registered protocol family 17
> [    4.505184] NET: Registered protocol family 17
> [    4.514570] registered taskstats version 1
> [    4.514570] registered taskstats version 1
> [    4.522977] Loading compiled-in X.509 certificates
> [    4.522977] Loading compiled-in X.509 certificates
> [    4.536243] alg: No test for pkcs1pad(rsa,sha1) (pkcs1pad(rsa-generic,sha1))
> [    4.536243] alg: No test for pkcs1pad(rsa,sha1) (pkcs1pad(rsa-generic,sha1))
> [    4.551638] Loaded X.509 cert 'CentOS Linux kernel signing key: 2dcaddc228df4f391be1f0c0517b9cb7a2e7ef34'
> [    4.551638] Loaded X.509 cert 'CentOS Linux kernel signing key: 2dcaddc228df4f391be1f0c0517b9cb7a2e7ef34'
> [    4.571344] zswap: loaded using pool lzo/zbud
> [    4.571344] zswap: loaded using pool lzo/zbud
> [    4.580771] usb 1-1: New USB device found, idVendor=0624, idProduct=0248
> [    4.580771] usb 1-1: New USB device found, idVendor=0624, idProduct=0248
> [    4.594532] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> [    4.594532] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> [    4.605236] Key type big_key registered
> [    4.605236] Key type big_key registered
> [    4.609085] rtc-efi rtc-efi: setting system clock to 2018-01-26 09:54:40 UTC (1516960480)
> [    4.609085] rtc-efi rtc-efi: setting system clock to 2018-01-26 09:54:40 UTC (1516960480)
> [    4.633727] usb 1-1: Product: Gadget USB HUB
> [    4.633727] usb 1-1: Product: Gadget USB HUB
> [    4.633730] usb 1-1: Manufacturer: no manufacturer
> [    4.633730] usb 1-1: Manufacturer: no manufacturer
> [    4.633732] usb 1-1: SerialNumber: 0123456789
> [    4.633732] usb 1-1: SerialNumber: 0123456789
> [    4.633743] usb 3-1: new high-speed USB device number 2 using xhci-hcd
> [    4.633743] usb 3-1: new high-speed USB device number 2 using xhci-hcd
> [    4.652422] hub 1-1:1.0: USB hub found
> [    4.652422] hub 1-1:1.0: USB hub found
> [    4.661306] hub 1-1:1.0: 5 ports detected
> [    4.661306] hub 1-1:1.0: 5 ports detected

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