KVM working on the Cubietruck

I managed to get KVM working on the Cubietruck last week. It’s not exactly simple, but this post describes in overview how to do it.

(1) You will need a Cubietruck, a CP2102 serial cable, a micro SDHC card, a card reader for your host computer, and a network patch cable (the board supports wifi but it doesn’t work with the newer kernel we’ll be using). Optional: 2.5″ SATA HDD or SSD.

(2) Start with Hans De Goede’s AllWinner remix of Fedora 19, and get that working. It’s important to read his README file carefully.

(3) Build this upstream kernel with this configuration:

make oldconfig
make menuconfig

In menuconfig, enable Large Page Address Extension (LPAE), and then enable KVM in the Virtualization menu.

LOADADDR=0x40008000 make uImage dtbs
make modules

sudo cp arch/arm/boot/uImage /boot/uImage.sunxi-test
sudo cp arch/arm/boot/dts/sun7i-a20-cubietruck.dtb /boot/sun7i-a20-cubietruck.dtb.sunxi-test
sudo make modules_install

Reboot, interrupt u-boot (using the serial console), and type the following commands to load the new kernel:

setenv bootargs console=ttyS0,115200 loglevel=9 earlyprintk ro rootwait root=/dev/mmcblk0p3
ext2load mmc 0 0x46000000 uImage.sunxi-test
ext2load mmc 0 0x4b000000 sun7i-a20-cubietruck.dtb.sunxi-test
env set fdt_high ffffffff
bootm 0x46000000 - 0x4b000000

(4) Build this modified u-boot which supports Hyp mode.

make cubietruck_config
make

sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/YOURSDCARD bs=1024 seek=8

Reboot again, use the commands above to boot into the upstream kernel, and if everything worked you should see:

Brought up 2 CPUs
SMP: Total of 2 processors activated.
CPU: All CPU(s) started in HYP mode.
CPU: Virtualization extensions available.

Also /dev/kvm should exist.

(5) Hack QEMU to create Cortex-A7 CPUs using this one-line patch.

Edit: dgilmore tells me this is no longer necessary. Instead make sure you use the qemu -cpu host option.

Then you should be able to create VMs using libvirt. Note if using libguestfs you will need to use the direct backend (LIBGUESTFS_BACKEND=direct) because of this libvirt bug.

Upstream kernel running on the Cubietruck

Hans de Goede and others did all the work, I’m just testing it …

The userspace is Fedora 20. The kernel tree is this one.

The bottom line is that everything I care about works except for KVM which will require a small U-Boot modification (to pass Hyp mode through to the kernel).

Boot messages after the break.

Cubietruck boots

I’m using Hans De Goede’s Fedora 19 remix which is exceptionally easy to set up (remember to read the README!). The only change I made was to kill the root password:

virt-edit -a /dev/sdd -e 's/root:x:/root::/' /etc/passwd

It takes a little while (about 10 minutes) to boot up the first time because it resizes the root filesystem to the full size of the disk and then reboots itself.

Unfortunately I had to deal with a bunch of Fedora brokenness (not specific to the remix): NetworkManager insists on breaking the network and network scripts don’t work because the Cubietruck gives the network card a random MAC address each time it boots. systemd hides the error messages. Also firewalld prevents ssh access remotely and is unable to open the port. In the end I had to use the serial cable, mask firewalld and NetworkManager, and spent ages trying to get the network to work. This is all dumb stuff and Fedora should be fixed to work remotely.

This is still using the sunxi 3.4 kernel, so no KVM yet although I’m working on that next.

Two nice feature are the four bright status LEDs which make it easy to see what’s happening on the board; and the power from USB connector.

Linux cube.home.annexia.org 3.4.61.sun7i+ #212 SMP Sun Oct 13 12:11:09 CEST 2013 armv7l armv7l armv7l GNU/Linux

Here is /proc/cpuinfo:

Processor	: ARMv7 Processor rev 4 (v7l)
processor	: 0
BogoMIPS	: 813.99

processor	: 1
BogoMIPS	: 816.78

Features	: swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt 
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x0
CPU part	: 0xc07
CPU revision	: 4

Hardware	: sun7i
Revision	: 0000
Serial		: 0000000000000000

and dmesg:

[    0.000000] Booting Linux on physical CPU 0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.4.61.sun7i+ (hans@shalem.localdomain) (gcc version 4.8.1 20130717 (Red Hat 4.8.1-5) (GCC) ) #212 SMP Sun Oct 13 12:11:09 CEST 2013
[    0.000000] CPU: ARMv7 Processor [410fc074] revision 4 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: sun7i
[    0.000000] Memory Reserved:
[    0.000000] 	SYS  : 0x43000000 - 0x4300ffff  (  64 kB)
[    0.000000] 	LCD  : 0x44000000 - 0x453fffff  (  20 MB)
[    0.000000] Memory policy: ECC disabled, Data cache writealloc
[    0.000000] sunxi: Allwinner A20 (AW1651/sun7i) detected.
[    0.000000] On node 0 totalpages: 524288
[    0.000000] free_area_init_node: node 0, pgdat c07c98c0, node_mem_map d0000000
[    0.000000]   DMA zone: 512 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 65024 pages, LIFO batch:15
[    0.000000]   Normal zone: 1008 pages used for memmap
[    0.000000]   Normal zone: 128016 pages, LIFO batch:31
[    0.000000]   HighMem zone: 2576 pages used for memmap
[    0.000000]   HighMem zone: 327152 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 8 pages/cpu @d100b000 s11840 r8192 d12736 u32768
[    0.000000] pcpu-alloc: s11840 r8192 d12736 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 520192
[    0.000000] Kernel command line: console=tty0 root=/dev/mmcblk0p3 ro rootwait rootfstype=ext4 loglevel=5 panic=10 console=ttyS0,115200 disp.screen0_output_mode=EDID:1280x720p60 hdmi.audio=EDID:0 sunxi_g2d_mem_reserve=0 sunxi_ve_mem_reserve=0 sunxi_fb_mem_reserve=20 sunxi_no_mali_mem_reserve
[    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: 2048MB = 2048MB total
[    0.000000] Memory: 2050276k/2050276k available, 46876k reserved, 1318912K 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 - 0xc070a688   (7178 kB)
[    0.000000]       .init : 0xc070b000 - 0xc0762e40   ( 352 kB)
[    0.000000]       .data : 0xc0764000 - 0xc07d6b98   ( 459 kB)
[    0.000000]        .bss : 0xc07d6bbc - 0xc08d33e0   (1011 kB)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:192
[    0.000000] Architected local timer running at 24.00MHz.
[    0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[    0.000000] start_kernel(): bug: interrupts were enabled early
[    0.000000] Console: colour dummy device 80x30
[    0.000000] console [tty0] enabled
[    0.000269] Calibrating delay loop... 1915.28 BogoMIPS (lpj=9576448)
[    0.059925] pid_max: default: 32768 minimum: 301
[    0.060094] Security Framework initialized
[    0.060155] SELinux:  Initializing.
[    0.060226] SELinux:  Starting in permissive mode
[    0.060410] Mount-cache hash table entries: 512
[    0.061406] Initializing cgroup subsys cpuacct
[    0.061424] Initializing cgroup subsys devices
[    0.061437] Initializing cgroup subsys freezer
[    0.061448] Initializing cgroup subsys net_cls
[    0.061459] Initializing cgroup subsys blkio
[    0.061480] Initializing cgroup subsys perf_event
[    0.061596] CPU: Testing write buffer coherency: ok
[    0.061644] ftrace: allocating 21499 entries in 42 pages
[    0.090137] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.090199] hw perfevents: enabled with ARMv7 Cortex-A7 PMU driver, 5 counters available
[    0.090291] Setting up static identity map for 0x40516778 - 0x405167d0
[    0.103941] CPU1: Booted secondary processor
[    0.160350] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.160591] Brought up 2 CPUs
[    0.160620] SMP: Total of 2 processors activated (3837.13 BogoMIPS).
[    0.161623] devtmpfs: initialized
[    0.165822] atomic64 test passed
[    0.166211] dummy: 
[    0.166503] NET: Registered protocol family 16
[    0.167744] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.167760] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.167783] [ccu-inf] aw clock manager init
[    0.167791] [ccu-inf] aw_ccu_init
[    0.168011] [ccu-inf] script config pll3 to 297MHz
[    0.168026] [ccu-inf] script config pll4 to 300MHz
[    0.168038] [ccu-inf] script config pll6 to 600MHz
[    0.168050] [ccu-inf] script config pll7 to 297MHz
[    0.168061] [ccu-inf] script config pll8 to 336MHz
[    0.168204] Init eGon pin module V2.0
[    0.174550] bio: create slab  at 0
[    0.175312] SCSI subsystem initialized
[    0.175519] libata version 3.00 loaded.
[    0.175767] usbcore: registered new interface driver usbfs
[    0.175833] usbcore: registered new interface driver hub
[    0.175983] usbcore: registered new device driver usb
[    0.176553] Advanced Linux Sound Architecture Driver Version 1.0.25.
[    0.177108] NetLabel: Initializing
[    0.177119] NetLabel:  domain hash size = 128
[    0.177126] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.177188] NetLabel:  unlabeled traffic allowed by default
[    0.177827] Switching to clocksource arch_sys_counter
[    0.223064] sw_hcd_host0 sw_hcd_host0: sw_hcd host driver
[    0.223090] sw_hcd_host0 sw_hcd_host0: new USB bus registered, assigned bus number 1
[    0.223207] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    0.223220] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.223233] usb usb1: Product: sw_hcd host driver
[    0.223243] usb usb1: Manufacturer: Linux 3.4.61.sun7i+ sw_hcd-hcd
[    0.223253] usb usb1: SerialNumber: sw_hcd_host0
[    0.223898] hub 1-0:1.0: USB hub found
[    0.223930] hub 1-0:1.0: 1 port detected
[    0.225018] NET: Registered protocol family 2
[    0.225296] IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.225891] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.227717] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
[    0.228684] TCP: Hash tables configured (established 131072 bind 65536)
[    0.228694] TCP: reno registered
[    0.228710] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.228772] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.229121] NET: Registered protocol family 1
[    0.230528] audit: initializing netlink socket (disabled)
[    0.230582] type=2000 audit(0.220:1): initialized
[    0.344964] highmem bounce pool size: 64 pages
[    0.353628] VFS: Disk quotas dquot_6.5.2
[    0.353918] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.356279] msgmni has been set to 1428
[    0.356655] SELinux:  Registering netfilter hooks
[    0.358672] alg: No test for stdrng (krng)
[    0.358704] NET: Registered protocol family 38
[    0.359000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
[    0.359137] io scheduler noop registered
[    0.359148] io scheduler deadline registered
[    0.359188] io scheduler cfq registered (default)
[    0.359991] sunxi disp driver loaded (/dev/disp api 1.0)
[    0.360254] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.361304] [uart]: used uart info.: 0x05
[    0.361384] [uart]: serial probe 0 irq 33 mapbase 0x01c28000
[    0.381790] sunxi-uart.0: ttyS0 at MMIO 0x1c28000 (irq = 33) is a U6_16550A
[    0.434130] console [ttyS0] enabled
[    0.434412] [uart]: serial probe 2 irq 35 mapbase 0x01c28800
[    0.454746] sunxi-uart.2: ttyS1 at MMIO 0x1c28800 (irq = 35) is a U6_16550A
[    0.460014] loop: module loaded
[    0.460065] [NAND] nand driver version: 0x2 0x9 
[    0.516196] Dev Sunxi softw311 nand magic does not match for MBR 1: softw411
[    0.523305] Dev Sunxi softw311 nand magic does not match for MBR 2:         
[    0.530368] Dev Sunxi softw311 nand magic does not match for MBR 3:         
[    0.537421] Dev Sunxi softw311 nand magic does not match for MBR 4:         
[    0.544481] Dev Sunxi softw311 nand header bad for all MBR copies, MBR corrupted or not present.
[    0.557388] Dev Sunxi softw411 nand: part 1, start 32768, size 32768
[    0.563790] Dev Sunxi softw411 nand: part 2, start 65536, size 32768
[    0.570175] Dev Sunxi softw411 nand: part 3, start 98304, size 32768
[    0.576533] Dev Sunxi softw411 nand: part 4, start 131072, size 1048576
[    0.583169] Dev Sunxi softw411 nand: part 5, start 1179648, size 1048576
[    0.589886] Dev Sunxi softw411 nand: part 6, start 2228224, size 32768
[    0.596417] Dev Sunxi softw411 nand: part 7, start 2260992, size 65536
[    0.602957] Dev Sunxi softw411 nand: part 8, start 2326528, size 655360
[    0.609584] Dev Sunxi softw411 nand: part 9, start 2981888, size 32768
[    0.616114] Dev Sunxi softw411 nand: part 10, start 3014656, size 524288
[    0.622831] Dev Sunxi softw411 nand: part 11, start 3538944, size 11501568
[    0.629725]  nand: nanda nandb nandc nandd nande nandf nandg nandh nandi nandj nandk
[    0.632340] [NAND]nand driver, ok.
[    0.636360] sw_ahci sw_ahci.0: controller can't do PMP, turning off CAP_PMP
[    0.636380] sw_ahci sw_ahci.0: forcing PORTS_IMPL to 0x1
[    0.641826] sw_ahci sw_ahci.0: AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl platform mode
[    0.641849] sw_ahci sw_ahci.0: flags: ncq sntf pm led clo only pio slum part ccc 
[    0.642716] scsi0 : sw_ahci_platform
[    0.643078] ata1: SATA max UDMA/133 mmio [mem 0x01c18000-0x01c18fff] port 0x100 irq 88
[    0.643478] Fixed MDIO Bus: probed
[    0.643493] emac_init fetch emac using configuration failed
[    0.649106] emac driver is disabled
[    0.649358] eth%d: device MAC address b2:4b:28:a2:53:90
[    0.655158] [gmac]: sun6i_gmac platform driver registration completed
[    0.662051] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.662330] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.662656] [sw-ehci1]: open clock
[    0.686154] [sw-ehci1]: Set USB Power ON
[    0.690105] sw-ehci sw-ehci.1: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.690396] sw-ehci sw-ehci.1: new USB bus registered, assigned bus number 2
[    0.690504] sw-ehci sw-ehci.1: irq 71, io mem 0x01c14000
[    0.707917] sw-ehci sw-ehci.1: USB 2.0 started, EHCI 1.00
[    0.708025] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[    0.708038] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.708051] usb usb2: Product: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.708062] usb usb2: Manufacturer: Linux 3.4.61.sun7i+ ehci_hcd
[    0.708072] usb usb2: SerialNumber: sw-ehci
[    0.708678] hub 2-0:1.0: USB hub found
[    0.708705] hub 2-0:1.0: 1 port detected
[    0.709082] [sw-ohci1]: open clock
[    0.732587] sw-ohci sw-ohci.1: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    0.732868] sw-ohci sw-ohci.1: new USB bus registered, assigned bus number 3
[    0.732914] sw-ohci sw-ohci.1: irq 96, io mem 0x01c14400
[    0.791988] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[    0.792005] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.792017] usb usb3: Product: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    0.792028] usb usb3: Manufacturer: Linux 3.4.61.sun7i+ ohci_hcd
[    0.792038] usb usb3: SerialNumber: sw-ohci
[    0.792615] hub 3-0:1.0: USB hub found
[    0.792642] hub 3-0:1.0: 1 port detected
[    0.793018] [sw-ehci2]: open clock
[    0.816520] [sw-ehci2]: Set USB Power ON
[    0.820464] sw-ehci sw-ehci.2: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.820846] sw-ehci sw-ehci.2: new USB bus registered, assigned bus number 4
[    0.820947] sw-ehci sw-ehci.2: irq 72, io mem 0x01c1c000
[    0.837912] sw-ehci sw-ehci.2: USB 2.0 started, EHCI 1.00
[    0.838019] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002
[    0.838033] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.838045] usb usb4: Product: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.838056] usb usb4: Manufacturer: Linux 3.4.61.sun7i+ ehci_hcd
[    0.838066] usb usb4: SerialNumber: sw-ehci
[    0.838594] hub 4-0:1.0: USB hub found
[    0.838618] hub 4-0:1.0: 1 port detected
[    0.838956] [sw-ohci2]: open clock
[    0.862450] sw-ohci sw-ohci.2: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    0.862741] sw-ohci sw-ohci.2: new USB bus registered, assigned bus number 5
[    0.862790] sw-ohci sw-ohci.2: irq 97, io mem 0x01c1c400
[    0.921973] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
[    0.921988] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.922000] usb usb5: Product: SW USB2.0 'Open' Host Controller (OHCI) Driver
[    0.922011] usb usb5: Manufacturer: Linux 3.4.61.sun7i+ ohci_hcd
[    0.922022] usb usb5: SerialNumber: sw-ohci
[    0.922576] hub 5-0:1.0: USB hub found
[    0.922601] hub 5-0:1.0: 1 port detected
[    0.922982] usbcore: registered new interface driver usbserial
[    0.923042] usbcore: registered new interface driver usbserial_generic
[    0.923092] USB Serial support registered for generic
[    0.923110] usbserial: USB Serial Driver core
[    0.923335] mousedev: PS/2 mouse device common for all mice
[    0.923842] rtc: get i2c master0 failed
[    0.928074] sunxi-rtc sunxi-rtc: Warning: RTC time is wrong!
[    0.934013] sunxi-rtc sunxi-rtc: rtc core: registered rtc as rtc0
[    0.934633] config i2c gpio with gpio_config api 
[    0.940625] axp_mfd 0-0034: AXP (CHIP ID: 0x41) detected
[    0.940870] axp_mfd 0-0034: AXP internal temperature monitoring enabled
[    0.941897] I2C: i2c-0: AW16XX I2C adapter
[    0.942121] I2C: i2c-1: AW16XX I2C adapter
[    0.942293] I2C: i2c-2: AW16XX I2C adapter
[    0.942350] [ccu-err] clk_enable: invalid handle
[    0.947089] I2C: i2c-3: AW16XX I2C adapter
[    0.947147] [ccu-err] clk_enable: invalid handle
[    0.951929] I2C: i2c-4: AW16XX I2C adapter
[    0.952186] axp20_ldo1: 1300 mV 
[    0.953420] axp20_ldo2: 1800  3300 mV at 3000 mV 
[    0.954599] axp20_ldo3: 700  3500 mV at 2800 mV 
[    0.955969] axp20_ldo4: 1250  3300 mV at 2800 mV 
[    0.957114] axp20_buck2: 700  2275 mV at 1400 mV 
[    0.958310] axp20_buck3: 700  3500 mV at 1250 mV 
[    0.959037] axp20_ldoio0: 1800  3300 mV at 2800 mV 
[    0.959629] input: axp20-supplyer as /devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/input/input0
[    0.973095] axp20_ldo2: Failed to create debugfs directory
[    0.979961] device-mapper: uevent: version 1.0.3
[    0.980395] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel@redhat.com
[    0.980713] cpuidle: using governor ladder
[    0.980724] cpuidle: using governor menu
[    0.980770] [mmc-msg] sw_mci_init
[    0.980888] [mmc-msg] MMC host used card: 0x9, boot card: 0x0, io_card 8
[    0.981285] [mmc-msg] sdc0 set round clock 400000, src 24000000
[    0.981563] [mmc-msg] sdc0 set ios: clk 0Hz bm OD pm OFF vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    0.982626] [mmc-msg] sdc0 Probe: base:0xf0050000 irq:64 sg_cpu:ffdf7000(4fc00000) ret 0.
[    0.982732] [mmc-msg] sdc3 set round clock 400000, src 24000000
[    0.982981] [mmc-msg] sdc3 set ios: clk 0Hz bm OD pm OFF vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    0.984036] [mmc-msg] sdc3 Probe: base:0xf0052000 irq:67 sg_cpu:ffddf000(4fc01000) ret 0.
[    0.984094] [mmc_pm]: failed to fetch sdio card configuration!
[    0.987970] ata1: SATA link down (SStatus 0 SControl 300)
[    0.989980] sunxi_leds driver init
[    0.990390] Registered led device: blue:ph21:led1
[    0.990487] Registered led device: orange:ph20:led2
[    0.990581] Registered led device: white:ph11:led3
[    0.990698] Registered led device: green:ph07:led4
[    0.990772] ledtrig-cpu: registered to indicate activity on CPUs
[    0.991476] usbcore: registered new interface driver usbhid
[    0.991489] usbhid: USB HID core driver
[    0.997296] asoc: sndspdif  sunxi-spdif.0 mapping ok
[    0.999539] ip_tables: (C) 2000-2006 Netfilter Core Team
[    0.999621] TCP: cubic registered
[    0.999630] Initializing XFRM netlink socket
[    1.000272] NET: Registered protocol family 10
[    1.001200] Mobile IPv6
[    1.001219] NET: Registered protocol family 17
[    1.001247] Registering the dns_resolver key type
[    1.001659] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 4
[    1.001702] Registering SWP/SWPB emulation handler
[    1.001809] axp20_buck2: Failed to create debugfs directory
[    1.007742] [cpu_freq] INF:-------------------V-F Table-------------------
[    1.007755] [cpu_freq] INF:	voltage = 1450mv 	frequency = 1008MHz
[    1.007765] [cpu_freq] INF:	voltage = 1400mv 	frequency =  912MHz
[    1.007774] [cpu_freq] INF:	voltage = 1300mv 	frequency =  864MHz
[    1.007783] [cpu_freq] INF:	voltage = 1200mv 	frequency =  720MHz
[    1.007792] [cpu_freq] INF:	voltage = 1100mv 	frequency =  528MHz
[    1.007802] [cpu_freq] INF:	voltage = 1050mv 	frequency =  312MHz
[    1.007811] [cpu_freq] INF:	voltage = 1050mv 	frequency =  144MHz
[    1.007821] [cpu_freq] INF:	voltage = 1000mv 	frequency =    0MHz
[    1.007829] [cpu_freq] INF:-----------------------------------------------
[    1.007849] [cpu_freq] INF:sunxi_cpufreq_initcall, get cpu frequency from sysconfig, max freq: 912MHz, min freq: 60MHz
[    1.008772] registered taskstats version 1
[    1.010443] I2C: i2c-5: HDMI I2C adapter
[    1.987935] [mmc-msg] mmc 0 detect change, present 1
[    2.487939] [mmc-msg] sdc0 set ios: clk 0Hz bm PP pm UP vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.487967] [mmc-msg] sdc0 power on
[    2.507927] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.507992] [mmc-msg] sdc0 set round clock 400000, src 24000000
[    2.580287] [mmc-err] smc 0 err, cmd 52,  RTO
[    2.585526] [mmc-err] smc 0 err, cmd 52,  RTO
[    2.589973] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.594406] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.597589] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.612799] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.617931] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.623061] [mmc-err] smc 0 err, cmd 5,  RTO
[    2.628064] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.628100] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.632535] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing LEGACY(SDR12) dt B
[    2.700398] [mmc-msg] sdc0 set ios: clk 400000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[    2.700435] [mmc-msg] sdc0 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 1 timing SD-HS(SDR25) dt B
[    2.700490] [mmc-msg] sdc0 set round clock 42857143, src 600000000
[    2.755620] [mmc-msg] sdc0 set ios: clk 50000000Hz bm PP pm ON vdd 3.3V width 4 timing SD-HS(SDR25) dt B
[    2.755664] mmc0: new high speed SDHC card at address aaaa
[    2.756425] mmcblk0: mmc0:aaaa SU16G 14.8 GiB 
[    2.758414]  mmcblk0: p1 p2 p3
[   11.037961] Timeout waiting for EDID info
[   11.042089] disp clks: lcd 74250000 pre_scale 1 hdmi 74250000 pll 297000000 2x 0
[   12.223483] Console: switching to colour frame buffer device 160x45
[   12.283731] axp20_buck3: incomplete constraints, leaving on
[   12.290686] axp20_buck2: incomplete constraints, leaving on
[   12.297548] axp20_ldo4: incomplete constraints, leaving on
[   12.304348] axp20_ldo3: incomplete constraints, leaving on
[   12.311154] axp20_ldo2: incomplete constraints, leaving on
[   12.317935] axp20_ldo1: incomplete constraints, leaving on
[   12.324921] sunxi-rtc sunxi-rtc: setting system clock to 2010-01-01 00:00:00 UTC (1262304000)
[   12.325208] Initializing network drop monitor service
[   12.325344] ALSA device list:
[   12.325377]   #0: sunxi-CODEC  Audio Codec
[   12.325407]   #1: sunxi-sndspdif
[   12.326210] md: Waiting for all devices to be available before autodetect
[   12.326257] md: If you don't use raid, use raid=noautodetect
[   12.328764] md: Autodetecting RAID arrays.
[   12.328807] md: Scanned 0 and added 0 devices.
[   12.328835] md: autorun ...
[   12.328858] md: ... autorun DONE.
[   12.368944] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
[   12.369127] VFS: Mounted root (ext4 filesystem) readonly on device 179:3.
[   12.379780] devtmpfs: mounted
[   12.381264] Freeing init memory: 348K
[   12.946712] type=1404 audit(1262304001.110:2): enforcing=1 old_enforcing=0 auid=4294967295 ses=4294967295
[   17.622858] SELinux: 2048 avtab hash slots, 100052 rules.
[   17.724127] SELinux: 2048 avtab hash slots, 100052 rules.
[   20.532038] SELinux:  8 users, 82 roles, 4468 types, 252 bools, 1 sens, 1024 cats
[   20.532061] SELinux:  83 classes, 100052 rules
[   20.572988] SELinux:  Class binder not defined in policy.
[   20.573010] SELinux: the above unknown classes and permissions will be allowed
[   20.573057] SELinux:  Completing initialization.
[   20.573066] SELinux:  Setting up existing superblocks.
[   20.573127] SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
[   20.573162] SELinux: initialized (dev rootfs, type rootfs), uses genfs_contexts
[   20.573198] SELinux: initialized (dev bdev, type bdev), uses genfs_contexts
[   20.573241] SELinux: initialized (dev proc, type proc), uses genfs_contexts
[   20.573286] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[   20.573389] SELinux: initialized (dev devtmpfs, type devtmpfs), uses transition SIDs
[   20.575709] SELinux: initialized (dev debugfs, type debugfs), uses genfs_contexts
[   20.578387] SELinux: initialized (dev sockfs, type sockfs), uses task SIDs
[   20.578418] SELinux: initialized (dev pipefs, type pipefs), uses task SIDs
[   20.578464] SELinux: initialized (dev anon_inodefs, type anon_inodefs), uses genfs_contexts
[   20.578488] SELinux: initialized (dev devpts, type devpts), uses transition SIDs
[   20.578618] SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
[   20.578681] SELinux: initialized (dev selinuxfs, type selinuxfs), uses genfs_contexts
[   20.578806] SELinux: initialized (dev mmcblk0p3, type ext4), uses xattr
[   20.579772] SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
[   20.579810] SELinux: initialized (dev securityfs, type securityfs), uses genfs_contexts
[   20.738181] type=1403 audit(1262304008.910:3): policy loaded auid=4294967295 ses=4294967295
[   20.781373] systemd[1]: Successfully loaded SELinux policy in 7.854719s.
[   20.951094] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[   20.956381] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[   20.959218] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
[   21.018139] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.169633] systemd[1]: Relabelled /dev and /run in 148.512ms.
[   21.248166] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.298125] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.348057] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.398015] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.448068] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.498201] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.548028] SELinux: initialized (dev cgroup, type cgroup), uses genfs_contexts
[   21.548863] systemd[1]: systemd 204 running in system mode. (+PAM +LIBWRAP +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ)
[   21.579128] systemd[1]: No hostname configured.
[   21.579176] systemd[1]: Set hostname to .
[   22.035043] LVM: Logical Volume autoactivation enabled.
[   22.046277] LVM: Activation generator successfully completed.
[   22.553475] systemd[1]: Starting Collect Read-Ahead Data...
[   22.589048] systemd[1]: Starting Replay Read-Ahead Data...
[   22.613323] systemd[1]: Expecting device dev-ttyS0.device...
[   22.624802] systemd-readahead[73]: Bumped block_nr parameter of 179:0 to 20480. This is a temporary hack and should be removed one day.
[   22.628270] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[   22.630994] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[   22.631186] systemd[1]: Starting Remote File Systems.
[   22.648260] systemd[1]: Reached target Remote File Systems.
[   22.648448] systemd[1]: Starting Syslog Socket.
[   22.678181] systemd[1]: Listening on Syslog Socket.
[   22.678393] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[   22.698186] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[   22.698421] systemd[1]: Starting Delayed Shutdown Socket.
[   22.728215] systemd[1]: Listening on Delayed Shutdown Socket.
[   22.729906] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[   22.732424] SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
[   22.758203] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[   22.758482] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch.
[   22.760082] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[   22.760282] systemd[1]: Starting Journal Socket.
[   22.788348] systemd[1]: Listening on Journal Socket.
[   22.788750] systemd[1]: Mounted Huge Pages File System.
[   22.788989] systemd[1]: Mounting POSIX Message Queue File System...
[   22.813559] systemd[1]: Mounting Debug File System...
[   22.835612] systemd[1]: Starting Create static device nodes in /dev...
[   22.863421] systemd[1]: Starting Journal Service...
[   22.899008] systemd[1]: Started Journal Service.
[   22.909311] systemd[1]: Started Device-Mapper Multipath Device Controller.
[   22.910042] systemd[1]: Starting udev Kernel Socket.
[   22.968202] systemd[1]: Listening on udev Kernel Socket.
[   22.968853] systemd[1]: Starting udev Control Socket.
[   23.008244] systemd[1]: Listening on udev Control Socket.
[   23.009048] systemd[1]: Starting udev Coldplug all Devices...
[   23.033074] systemd[1]: Starting LVM2 metadata daemon socket.
[   23.098381] systemd[1]: Listening on LVM2 metadata daemon socket.
[   23.098646] systemd[1]: Starting Device-mapper event daemon FIFOs.
[   23.128379] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[   23.128630] systemd[1]: Starting Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling...
[   23.146030] systemd[1]: Expecting device dev-disk-by\x2duuid-762e6e34\x2d142b\x2d49fe\x2d9e8b\x2dfb8a8a8cddab.device...
[   23.168486] systemd[1]: Expecting device dev-disk-by\x2duuid-2cb94397\x2ddc57\x2d4276\x2dbd81\x2d0f30170f8cc1.device...
[   23.228401] systemd[1]: Started Collect Read-Ahead Data.
[   23.251008] systemd[1]: Started Replay Read-Ahead Data.
[   23.268347] systemd[1]: Mounted POSIX Message Queue File System.
[   23.288317] systemd[1]: Mounted Debug File System.
[   23.448318] systemd[1]: Started Create static device nodes in /dev.
[   23.475764] systemd[1]: Starting udev Kernel Device Manager...
[   23.515667] systemd[1]: Starting Load legacy module configuration...
[   23.563576] systemd[1]: Starting File System Check on Root Device...
[   23.639871] systemd[1]: Started Set Up Additional Binary Formats.
[   23.651422] systemd[1]: Started Load Kernel Modules.
[   23.652229] systemd[1]: Mounting Configuration File System...
[   23.678567] systemd[1]: Mounted FUSE Control File System.
[   23.728250] systemd[1]: Starting Apply Kernel Variables...
[   23.755832] systemd[1]: Starting Setup Virtual Console...
[   23.764476] SELinux: initialized (dev configfs, type configfs), uses genfs_contexts
[   23.803785] type=1400 audit(1262304011.960:4): avc:  denied  { sendto } for  pid=91 comm="systemd-sysctl" path="/run/systemd/journal/socket" scontext=system_u:system_r:systemd_sysctl_t:s0 tcontext=system_u:system_r:syslogd_t:s0 tclass=unix_dgram_socket
[   23.808445] systemd[1]: Mounted Configuration File System.
[   23.835103] systemd[1]: Starting LVM2 metadata daemon...
[   23.985671] systemd[1]: Started Apply Kernel Variables.
[   24.204648] systemd-udevd[86]: starting version 204
[   24.213911] systemd[1]: Started udev Kernel Device Manager.
[   24.298644] systemd[1]: Started Load legacy module configuration.
[   24.448704] systemd[1]: Started udev Coldplug all Devices.
[   24.485743] systemd[1]: Starting udev Wait for Complete Device Initialization...
[   24.838375] systemd[1]: Started File System Check on Root Device.
[   24.968422] systemd[1]: Started Setup Virtual Console.
[   25.018384] systemd[1]: Started LVM2 metadata daemon.
[   25.019530] systemd[1]: Starting Remount Root and Kernel File Systems...
[   25.618352] systemd[1]: Started Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling.
[   25.942386] systemd[1]: Starting Sound Card.
[   25.947369] systemd[1]: Reached target Sound Card.
[   26.329797] systemd[1]: Found device /dev/ttyS0.
[   26.536181] EXT4-fs (mmcblk0p3): re-mounted. Opts: (null)
[   26.708328] systemd[1]: Started Remount Root and Kernel File Systems.
[   26.709390] systemd[1]: Starting Local File Systems (Pre).
[   26.728389] systemd[1]: Reached target Local File Systems (Pre).
[   26.728679] systemd[1]: Starting Configure read-only root support...
[   26.755944] systemd[1]: Started Import network configuration from initramfs.
[   27.218241] systemd[1]: Started Configure read-only root support.
[   27.219056] systemd[1]: Starting Load Random Seed...
[   27.428200] systemd[1]: Started Load Random Seed.
[   27.458316] systemd[1]: Found device /dev/disk/by-uuid/762e6e34-142b-49fe-9e8b-fb8a8a8cddab.
[   27.458726] systemd[1]: Activating swap /dev/disk/by-uuid/762e6e34-142b-49fe-9e8b-fb8a8a8cddab...
[   27.538181] systemd[1]: Found device /dev/disk/by-uuid/2cb94397-dc57-4276-bd81-0f30170f8cc1.
[   27.538581] systemd[1]: Mounting /boot...
[   27.600544] Adding 499996k swap on /dev/mmcblk0p2.  Priority:-1 extents:1 across:499996k SS
[   27.645434] EXT4-fs (mmcblk0p1): mounting ext3 file system using the ext4 subsystem
[   27.648346] systemd[1]: Activated swap /dev/disk/by-uuid/762e6e34-142b-49fe-9e8b-fb8a8a8cddab.
[   27.649147] systemd[1]: Starting Swap.
[   27.668255] systemd[1]: Reached target Swap.
[   27.676216] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[   27.676308] SELinux: initialized (dev mmcblk0p1, type ext3), uses xattr
[   27.758183] systemd[1]: Mounted /boot.
[   28.658181] systemd[1]: Started udev Wait for Complete Device Initialization.
[   28.658970] systemd[1]: Starting Activation of DM RAID sets...
[   29.190256] type=1305 audit(1262304017.350:5): audit_pid=186 old=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:auditd_t:s0 res=1
[   37.235468] sunxi_gmac: probed
[   37.235493] eth0: PHY ID 001cc915 at 0 IRQ 0 (sunxi_gmac-0:00) active
[   37.235507] eth0: PHY ID 001cc915 at 1 IRQ 0 (sunxi_gmac-0:01)
[   39.238143] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full

Cubietruck arrives … and a serial adapter

I ordered it over 1 month ago, and it spent some time travelling around Sweden, but anyway it has now arrived. (To be fair, my colleague in the US ordered one and it arrived two days later).

This is a CP2102-based UART-USB connector which I ordered on Amazon for under £10 (inc tax and delivery). I’m hoping this will solve my serial port blues:

In ARM news …

The Cubietruck I ordered almost a month ago has finally left Sweden where it was enjoying the fjords or something. I’m hoping I might even get it in the UK next week.

Also I tried to order the Mele A1000G (quad core Allwinner A31) from Alibaba. (Alibaba has a really annoying website that barely works in Firefox). Unfortunately “Your order has been cancelled for security reasons”, with no actual reason given. At least they didn’t debit money from my credit card. So I’m really looking for a UK supplier of this item, although they all appear to be out of stock at the moment.

Update After posting that, I found an eBay seller based in Hong Kong and bought one for £94. Not as cheap as DX, but seems more likely to arrive.