[PATCH v3 0/4] Exynos 5410 Dual cluster support
Tomasz Figa
tomasz.figa at gmail.com
Tue Nov 19 18:23:08 EST 2013
Hi,
On Thursday 07 of November 2013 12:12:45 Vyacheslav Tyrtov wrote:
> The series of patches represent support of Exynos 5410 SoC
>
> The Exynos 5410 is the first Samsung SoC based on bigLITTLE architecture
> Patches allow all 8 CPU cores (4 x A7 and 4 x A15) to run at the same time
>
> Patches add new platform description, support of clock controller,
> dual cluster support and device tree for Exynos 5410
>
> Has been build on v3.12.
> Has been tested on Exynos 5410 reference board (exynos_defconfig).
I've applied the patches on top of today's linux-next and tried to boot
my ODROID-XU using exynos5410-smdk5410.dts and exynos_defconfig, but all
I can get is an imprecise external abort, when the kernel tries to jump
to init. Full boot log below. Any ideas?
Best regards,
Tomasz
8><------------
U-Boot 2012.07-g2bcb371 (Nov 19 2013 - 20:17:37) for Exynos5410
CPU: Exynos5410 Rev2.3 [Samsung SOC on SMP Platform Base on ARM CortexA15]
APLL = 900MHz, KPLL = 600MHz
MPLL = 532MHz, BPLL = 800MHz
DRAM: 2 GiB
WARNING: Caches not enabled
TrustZone Enabled BSP
BL1 version:
PMIC VER : 0, CHIP REV : 6
VDD MIF : 1.00000V
VDD ARM : 1.00000V
VDD INT : 1.00000V
VDD G3D : 1.00000V
VDD KFC : 1.00000V
Checking Boot Mode ... SDMMC
MMC: S5P_MSHC2: 0, S5P_MSHC0: 1
MMC Device 0: 14.8 GiB
MMC Device 1: [ERROR] response error : 00000006 cmd 8
[ERROR] response error : 00000006 cmd 55
[ERROR] response error : 00000006 cmd 2
In: serial
Out: serial
Err: serial
Net: No ethernet found.
Press 'Enter' or 'Space' to stop autoboot: 0
ODROID-XU #
ODROID-XU #
ODROID-XU # pri
baudrate=115200
bootargs=console=ttySAC2,115200n8 earlyprintk ignore_loglevel mem=1G root=/dev/mmcblk0p1 rootwait
bootcmd=run netboot
bootdelay=1
bootfile=uImage.xu
bootscript=source 40008000
copy_uboot_emmc2sd=emmc open 0;movi r z f 0 40000000;emmc close 0;movi w f 1 40000000;emmc open 0;movi r z b 0 40000000;emmc close 0;movi w b 1 40000000;emmc open 0;movi r z u 0 40000000;emmc close 0;movi w u 1 40000000;emmc open 0;movi r z t 0 40000000;emmc close 0;movi w t 1 40000000;mmc write 1 0x40008000 0x4CF 0x20;
copy_uboot_sd2emmc=movi r f 0 40000000;emmc open 1;movi w z f 1 40000000;emmc close 1;movi r b 0 40000000;emmc open 1;movi w z b 1 40000000;emmc close 1;movi r u 0 40000000;emmc open 1;movi w z u 1 40000000;emmc close 1;movi r t 0 40000000;emmc open 1;movi w z t 1 40000000;emmc close 1;mmc write 1 0x40008000 0x4CF 0x20;
default_bootcmd=echo >>> Run Default Bootcmd <<<;movi read kernel 0 40008000;bootz 40008000
ethact=sms0
ipaddr=192.168.1.20
loadbootscript_1=echo >>> Load Boot Script from mmc 0:1 <<<;fatload mmc 0:1 40008000 boot.scr
loadbootscript_2=echo >>> Load Boot Script from mmc 0:2 <<<;fatload mmc 0:2 40008000 boot.scr
loadbootscript_3=echo >>> Load Boot Script from mmc 1:1 <<<;fatload mmc 1:1 40008000 boot.scr
loadbootscript_4=echo >>> Load Boot Script from mmc 1:2 <<<;fatload mmc 1:2 40008000 boot.scr
netboot=usb start && tftpboot 40008000 && bootm 40008000
rootfslen=100000
serverip=192.168.1.2
stderr=serial
stdin=serial
stdout=serial
usbethaddr=00:11:22:33:44:55
Environment size: 1546/16380 bytes
ODROID-XU # run netboot
(Re)start USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 3 USB Device(s) found
scanning bus for storage devices... 0 Storage Device(s) found
scanning usb for ethernet devices... 1 Ethernet Device(s) found
Waiting for Ethernet connection... done.
Using sms0 device
TFTP from server 192.168.1.2; our IP address is 192.168.1.20
Filename 'uImage.xu'.
Load address: 0x40008000
Loading: #################################################################
#################################################################
#################################################################
#########
done
Bytes transferred = 2980232 (2d7988 hex)
## Booting kernel from Legacy Image at 40008000 ...
Image Name: Linux-exynos5410-odroidxu
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2980168 Bytes = 2.8 MiB
Load Address: 50008000
Entry Point: 50008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.12.0-next-20131119-00004-g27f3f5f-dirty (tom3q at flatron) (gcc version 4.7.2 (Gentoo 4.7.2-r1 p1.6, pie-0.5.5) ) #11 SMP PREEMPT Wed Nov 20 00:08:02 CET 2013
[ 0.000000] CPU: ARMv7 Processor [412fc0f3] revision 3 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[ 0.000000] Machine model: Hardkernel ODROID-XU board based on EXYNOS5410
[ 0.000000] bootconsole [earlycon0] enabled
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] CPU EXYNOS5410 (id 0xe5410023)
[ 0.000000] On node 0 totalpages: 262144
[ 0.000000] Normal zone: 1520 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 194560 pages, LIFO batch:31
[ 0.000000] HighMem zone: 528 pages used for memmap
[ 0.000000] HighMem zone: 67584 pages, LIFO batch:15
[ 0.000000] PERCPU: Embedded 7 pages/cpu @c07e4000 s7552 r8192 d12928 u32768
[ 0.000000] pcpu-alloc: s7552 r8192 d12928 u32768 alloc=8*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5 [0] 6 [0] 7
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260624
[ 0.000000] Kernel command line: console=ttySAC2,115200n8 earlyprintk ignore_loglevel mem=1G root=/dev/mmcblk0p1 rootwait
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 1033268K/1048576K available (3860K kernel code, 254K rwdata, 1300K rodata, 231K init, 288K bss, 15308K reserved, 270336K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xf0000000 - 0xff000000 ( 240 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xef800000 ( 760 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0512398 (5161 kB)
[ 0.000000] .init : 0xc0513000 - 0xc054cd80 ( 232 kB)
[ 0.000000] .data : 0xc054e000 - 0xc058d9e0 ( 255 kB)
[ 0.000000] .bss : 0xc058d9ec - 0xc05d5aa8 ( 289 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] sched_clock: 32 bits at 200 Hz, resolution 5000000ns, wraps every 10737418240000000ns
[ 0.000000] Console: colour dummy device 80x30
[ 0.000000] allocated 2097152 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.020000] Calibrating delay loop... 1785.85 BogoMIPS (lpj=4464640)
[ 0.045000] pid_max: default: 32768 minimum: 301
[ 0.050000] Mount-cache hash table entries: 512
[ 0.055000] Initializing cgroup subsys memory
[ 0.060000] Initializing cgroup subsys devices
[ 0.065000] Initializing cgroup subsys freezer
[ 0.070000] Initializing cgroup subsys blkio
[ 0.075000] CPU: Testing write buffer coherency: ok
[ 0.080000] CPU0: update cpu_power 1468
[ 0.085000] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.090000] Setting up static identity map for 0x503a9c48 - 0x503a9ca0
[ 0.095000] ARM CCI driver probed
[ 0.100000] EDCS power management initialized
[ 0.135000] CPU1: Booted secondary processor
[ 0.175000] CPU1: update cpu_power 1468
[ 0.175000] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.185000] CPU2: Booted secondary processor
[ 0.225000] CPU2: update cpu_power 1468
[ 0.225000] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.235000] CPU3: Booted secondary processor
[ 0.275000] CPU3: update cpu_power 1468
[ 0.275000] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 1.285000] CPU4: failed to come online
[ 2.300000] CPU5: failed to come online
[ 3.310000] CPU6: failed to come online
[ 4.320000] CPU7: failed to come online
[ 4.320000] Brought up 4 CPUs
[ 4.325000] SMP: Total of 4 processors activated.
[ 4.330000] CPU: All CPU(s) started in SVC mode.
[ 4.335000] devtmpfs: initialized
[ 4.345000] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
[ 4.350000] pinctrl core: initialized pinctrl subsystem
[ 4.355000] regulator-dummy: no parameters
[ 4.355000] NET: Registered protocol family 16
[ 4.360000] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 4.370000] S3C Power Management, Copyright 2004 Simtec Electronics
[ 4.375000] EXYNOS: PMU not supported
[ 4.380000] EXYNOS: Initializing architecture
[ 4.395000] bio: create slab <bio-0> at 0
[ 4.405000] SCSI subsystem initialized
[ 4.405000] usbcore: registered new interface driver usbfs
[ 4.410000] usbcore: registered new interface driver hub
[ 4.420000] usbcore: registered new device driver usb
[ 4.425000] Switched to clocksource mct-frc
[ 4.440000] NET: Registered protocol family 2
[ 4.445000] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 4.455000] TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
[ 4.460000] TCP: Hash tables configured (established 8192 bind 8192)
[ 4.465000] TCP: reno registered
[ 4.470000] UDP hash table entries: 512 (order: 2, 24576 bytes)
[ 4.475000] UDP-Lite hash table entries: 512 (order: 2, 24576 bytes)
[ 4.485000] NET: Registered protocol family 1
[ 4.490000] audit: initializing netlink socket (disabled)
[ 4.495000] type=2000 audit(4.495:1): initialized
[ 4.500000] bounce pool size: 64 pages
[ 4.520000] ROMFS MTD (C) 2007 Red Hat, Inc.
[ 4.525000] msgmni has been set to 1490
[ 4.530000] io scheduler noop registered
[ 4.530000] io scheduler deadline registered (default)
[ 4.535000] io scheduler cfq registered
[ 4.655000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 4.665000] 12c00000.serial: ttySAC0 at MMIO 0x12c00000 (irq = 83, base_baud = 0) is a S3C6400/10
[ 4.675000] 12c10000.serial: ttySAC1 at MMIO 0x12c10000 (irq = 84, base_baud = 0) is a S3C6400/10
[ 4.680000] console [tt[SAC2] enabled
4.680000] console [ttySAC2] enabled
[ 4.690000] bootconsole [early[on0] disabled
4.690000] bootconsole [earlycon0] disabled
[ 4.700000] 12c30000.serial: ttySAC3 at MMIO 0x12c30000 (irq = 86, base_baud = 0) is a S3C6400/10
[ 4.715000] brd: module loaded
[ 4.720000] loop: module loaded
[ 4.725000] usbcore: registered new interface driver asix
[ 4.730000] usbcore: registered new interface driver ax88179_178a
[ 4.735000] usbcore: registered new interface driver cdc_ether
[ 4.740000] usbcore: registered new interface driver r815x
[ 4.745000] usbcore: registered new interface driver smsc75xx
[ 4.755000] usbcore: registered new interface driver smsc95xx
[ 4.760000] usbcore: registered new interface driver net1080
[ 4.765000] usbcore: registered new interface driver cdc_subset
[ 4.770000] usbcore: registered new interface driver zaurus
[ 4.775000] usbcore: registered new interface driver cdc_ncm
[ 4.780000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 4.790000] usbcore: registered new interface driver usb-storage
[ 4.795000] mousedev: PS/2 mouse device common for all mice
[ 4.800000] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel at redhat.com
[ 4.810000] sdhci: Secure Digital Host Controller Interface driver
[ 4.815000] sdhci: Copyright(c) Pierre Ossman
[ 4.820000] Synopsys Designware Multimedia Card Interface Driver
[ 4.825000] dwmmc_exynos 12200000.mmc: dummy supplies not allowed
[ 4.830000] dwmmc_exynos 12200000.mmc: no vmmc regulator found: -19
[ 4.835000] dwmmc_exynos 12200000.mmc: Using internal DMA controller.
[ 4.845000] dwmmc_exynos 12200000.mmc: Version ID is 241a
[ 4.850000] dwmmc_exynos 12200000.mmc: DW MMC controller at irq 107, 64 bit host data width, 128 deep fifo
[ 4.860000] of_get_named_gpiod_flags: can't parse gpios property of node '/mmc at 12200000/slot at 0[0]'
[ 4.895000] dwmmc_exynos 12200000.mmc: 1 slots initialized
[ 4.895000] dwmmc_exynos 12220000.mmc: dummy supplies not allowed
[ 4.905000] dwmmc_exynos 12220000.mmc: no vmmc regulator found: -19
[ 4.910000] dwmmc_exynos 12220000.mmc: Using internal DMA controller.
[ 4.915000] dwmmc_exynos 12220000.mmc: Version ID is 241a
[ 4.920000] dwmmc_exynos 12220000.mmc: DW MMC controller at irq 109, 64 bit host data width, 128 deep fifo
[ 4.930000] of_get_named_gpiod_flags: can't parse gpios property of node '/mmc at 12220000/slot at 0[0]'
[ 4.970000] dwmmc_exynos 12220000.mmc: 1 slots initialized
[ 4.975000] usbcore: registered new interface driver usbhid
[ 4.980000] usbhid: USB HID core driver
[ 4.980000] TCP: cubic registered
[ 4.985000] NET: Registered protocol family 17
[ 4.990000] NET: Registered protocol family 15
[ 4.995000] Registering SWP/SWPB emulation handler
[ 5.000000] registered taskstats version 1
[ 5.005000] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 5.010000] Waiting for root device /dev/mmcblk0p1...
[ 5.025000] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 25000000Hz, actual 25000000HZ div = 1)
[ 5.035000] mmc1: new SDHC card at address e624
[ 5.040000] isa bounce pool size: 16 pages
[ 5.045000] mmcblk0: mmc1:e624 SU16G 14.8 GiB
[ 5.050000] mmcblk0: p1
[ 5.120000] EXT3-fs (mmcblk0p1): error: couldn't mount because of unsupported optional features (240)
[ 5.125000] EXT2-fs (mmcblk0p1): error: couldn't mount because of unsupported optional features (240)
[ 5.145000] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[ 5.150000] VFS: Mounted root (ext4 filesystem) readonly on device 179:1.
[ 5.165000] devtmpfs: mounted
[ 5.170000] Freeing unused kernel memory: 228K (c0513000 - c054c000)
[ 5.195000] Unhandled fault: imprecise external abort (0x1406) at 0x00000000
[ 5.210000] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
[ 5.210000]
[ 5.210000] CPU: 2 PID: 1 Comm: init Not tainted 3.12.0-next-20131119-00004-g27f3f5f-dirty #11
[ 5.210000] [<c0014068>] (unwind_backtrace+0x0/0xf8) from [<c0011438>] (show_stack+0x10/0x14)
[ 5.210000] [<c0011438>] (show_stack+0x10/0x14) from [<c03a486c>] (dump_stack+0x7c/0xbc)
[ 5.210000] [<c03a486c>] (dump_stack+0x7c/0xbc) from [<c03a1e78>] (panic+0x8c/0x1e4)
[ 5.210000] [<c03a1e78>] (panic+0x8c/0x1e4) from [<c001f504>] (do_exit+0x850/0x920)
[ 5.210000] [<c001f504>] (do_exit+0x850/0x920) from [<c001f63c>] (do_group_exit+0x3c/0xb0)
[ 5.210000] [<c001f63c>] (do_group_exit+0x3c/0xb0) from [<c0029e1c>] (get_signal_to_deliver+0x1d4/0x538)
[ 5.210000] [<c0029e1c>] (get_signal_to_deliver+0x1d4/0x538) from [<c0010974>] (do_signal+0x100/0x40c)
[ 5.210000] [<c0010974>] (do_signal+0x100/0x40c) from [<c0010fb4>] (do_work_pending+0x68/0xa8)
[ 5.210000] [<c0010fb4>] (do_work_pending+0x68/0xa8) from [<c000e620>] (work_pending+0xc/0x20)
[ 5.300000] CPU3: stopping
[ 5.300000] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.12.0-next-20131119-00004-g27f3f5f-dirty #11
[ 5.300000] [<c0014068>] (unwind_backtrace+0x0/0xf8) from [<c0011438>] (show_stack+0x10/0x14)
[ 5.300000] [<c0011438>] (show_stack+0x10/0x14) from [<c03a486c>] (dump_stack+0x7c/0xbc)
[ 5.300000] [<c03a486c>] (dump_stack+0x7c/0xbc) from [<c00132e0>] (handle_IPI+0x130/0x15c)
[ 5.300000] [<c00132e0>] (handle_IPI+0x130/0x15c) from [<c000859c>] (gic_handle_irq+0x60/0x68)
[ 5.300000] [<c000859c>] (gic_handle_irq+0x60/0x68) from [<c0011f00>] (__irq_svc+0x40/0x70)
[ 5.300000] Exception stack(0xef29ff80 to 0xef29ffc8)
[ 5.300000] ff80: c07fc558 00000000 0093a607 00000000 00000000 00000000 c054b558 002b1000
[ 5.300000] ffa0: 60000113 00000001 c07fc558 ef29e000 c0556438 ef29ffc8 c0064254 c0064258
[ 5.300000] ffc0: 60000113 ffffffff
[ 5.300000] [<c0011f00>] (__irq_svc+0x40/0x70) from [<c0064258>] (rcu_idle_exit+0x5c/0xb0)
[ 5.300000] [<c0064258>] (rcu_idle_exit+0x5c/0xb0) from [<c005b4a4>] (cpu_startup_entry+0x68/0x148)
[ 5.300000] [<c005b4a4>] (cpu_startup_entry+0x68/0x148) from [<50008644>] (0x50008644)
[ 5.300000] CPU1: stopping
[ 5.300000] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.12.0-next-20131119-00004-g27f3f5f-dirty #11
[ 5.300000] [<c0014068>] (unwind_backtrace+0x0/0xf8) from [<c0011438>] (show_stack+0x10/0x14)
[ 5.300000] [<c0011438>] (show_stack+0x10/0x14) from [<c03a486c>] (dump_stack+0x7c/0xbc)
[ 5.300000] [<c03a486c>] (dump_stack+0x7c/0xbc) from [<c00132e0>] (handle_IPI+0x130/0x15c)
[ 5.300000] [<c00132e0>] (handle_IPI+0x130/0x15c) from [<c000859c>] (gic_handle_irq+0x60/0x68)
[ 5.300000] [<c000859c>] (gic_handle_irq+0x60/0x68) from [<c0011f00>] (__irq_svc+0x40/0x70)
[ 5.300000] Exception stack(0xef29bf80 to 0xef29bfc8)
[ 5.300000] SMP: failed to stop secondary CPUs
[ 5.465000] bf80: c07ec558 00000000 00938a81 00000000 00000000 00000000 c054b558 002a1000
[ 5.475000] bfa0: 60000113 00000001 c07ec558 ef29a000 5572448d ef29bfc8 c0064254 c0064258
[ 5.480000] bfc0: 60000113 ffffffff
[ 5.485000] [<c0011f00>] (__irq_svc+0x40/0x70) from [<c0064258>] (rcu_idle_exit+0x5c/0xb0)
[ 5.495000] [<c0064258>] (rcu_idle_exit+0x5c/0xb0) from [<c005b4a4>] (cpu_startup_entry+0x68/0x148)
[ 5.505000] [<c005b4a4>] (cpu_startup_entry+0x68/0x148) from [<50008644>] (0x50008644)
[ 5.510000] CPU0: stopping
[ 5.515000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.12.0-next-20131119-00004-g27f3f5f-dirty #11
[ 5.525000] [<c0014068>] (unwind_backtrace+0x0/0xf8) from [<c0011438>] (show_stack+0x10/0x14)
[ 5.530000] [<c0011438>] (show_stack+0x10/0x14) from [<c03a486c>] (dump_stack+0x7c/0xbc)
[ 5.540000] [<c03a486c>] (dump_stack+0x7c/0xbc) from [<c00132e0>] (handle_IPI+0x130/0x15c)
[ 5.550000] [<c00132e0>] (handle_IPI+0x130/0x15c) from [<c000859c>] (gic_handle_irq+0x60/0x68)
[ 5.555000] [<c000859c>] (gic_handle_irq+0x60/0x68) from [<c0011f00>] (__irq_svc+0x40/0x70)
[ 5.565000] Exception stack(0xc054ff60 to 0xc054ffa8)
[ 5.570000] ff60: c07e4558 00000000 00001796 00000000 c054e000 c05564b8 c03ab8d4 c054e000
[ 5.580000] ff80: c058d3d5 00000001 c058d3d5 c054e000 55529a03 c054ffa8 c000f18c c000f190
[ 5.585000] ffa0: 60000113 ffffffff
[ 5.590000] [<c0011f00>] (__irq_svc+0x40/0x70) from [<c000f190>] (arch_cpu_idle+0x28/0x30)
[ 5.600000] [<c000f190>] (arch_cpu_idle+0x28/0x30) from [<c005b494>] (cpu_startup_entry+0x58/0x148)
[ 5.605000] [<c005b494>] (cpu_startup_entry+0x58/0x148) from [<c0513b28>] (start_kernel+0x384/0x3e4)
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