$qemu-system-arm -M vexpress-a9 -dtb arch/arm/boot/dts/vexpress-v2p-ca9.dtb -kernel arch/arm/boot/zImage -hda disk.img -serial stdio --append "root=/dev/sda console=ttyAMA0,115200"
WARNING: Image format was not specified for 'disk.img' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
Specify the 'raw' format explicitly to remove the restrictions.
pulseaudio: set_sink_input_volume() failed
pulseaudio: Reason: Invalid argument
pulseaudio: set_sink_input_mute() failed
pulseaudio: Reason: Invalid argument
Warning: Orphaned drive without device: id=scsi0-hd0,file=disk.img,if=scsi,bus=0,unit=0
Booting Linux on physical CPU 0x0
Initializing cgroup subsys cpuset
Linux version 4.4.0 (gcc version 4.9.4 ) #1 SMP Wed Jun 21 18:58:22 IST 2017
CPU: ARMv7 Processor [410fc090] revision 0 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine model: V2P-CA9
Memory policy: Data cache writeback
CPU: All CPU(s) started in SVC mode.
PERCPU: Embedded 12 pages/cpu @87ebe000 s18240 r8192 d22720 u49152
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
Kernel command line: root=/dev/sda console=ttyAMA0,115200
log_buf_len individual max cpu contribution: 4096 bytes
log_buf_len total cpu_extra contributions: 12288 bytes
log_buf_len min size: 16384 bytes
log_buf_len: 32768 bytes
early log buf free: 14980(91%)
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 122728K/131072K available (4856K kernel code, 156K rwdata, 1388K rodata, 288K init, 153K bss, 8344K reserved, 0K cma-reserved)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0x88800000 - 0xff800000 (1904 MB)
lowmem : 0x80000000 - 0x88000000 ( 128 MB)
modules : 0x7f000000 - 0x80000000 ( 16 MB)
.text : 0x80008000 - 0x80621404 (6246 kB)
.init : 0x80622000 - 0x8066a000 ( 288 kB)
.data : 0x8066a000 - 0x80691060 ( 157 kB)
.bss : 0x80694000 - 0x806ba47c ( 154 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
Hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 32.
RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=4
NR_IRQS:16 nr_irqs:16 16
GIC CPU mask not found - kernel will fail to boot.
GIC CPU mask not found - kernel will fail to boot.
L2C: platform modifies aux control register: 0x02020000 -> 0x02420000
L2C: DT/platform modifies aux control register: 0x02020000 -> 0x02420000
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 dynamic clock gating disabled, standby mode disabled
L2C-310 cache controller enabled, 8 ways, 128 kB
L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x46420001
smp_twd: clock not found -2
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
clocksource: arm,sp804: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
Console: colour dummy device 80x30
Calibrating local timer... 96.84MHz.
Calibrating delay loop... 712.29 BogoMIPS (lpj=3561472)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x60008280 - 0x600082d8
Brought up 1 CPUs
SMP: Total of 1 processors activated (712.29 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 0
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
of_amba_device_create(): amba_device_add() failed (-19) for /address@hidden
of_amba_device_create(): amba_device_add() failed (-19) for /address@hidden
of_amba_device_create(): amba_device_add() failed (-19) for /address@hidden
of_amba_device_create(): amba_device_add() failed (-19) for /smb/motherboard/address@hidden,00000000/address@hidden
of_amba_device_create(): amba_device_add() failed (-19) for /smb/motherboard/address@hidden,00000000/address@hidden
hw-breakpoint: debug architecture 0x4 unsupported.
Serial: AMBA PL011 UART driver
10009000.uart: ttyAMA0 at MMIO 0x10009000 (irq = 38, base_baud = 0) is a PL011 rev1
console [ttyAMA0] enabled
1000a000.uart: ttyAMA1 at MMIO 0x1000a000 (irq = 39, base_baud = 0) is a PL011 rev1
1000b000.uart: ttyAMA2 at MMIO 0x1000b000 (irq = 40, base_baud = 0) is a PL011 rev1
1000c000.uart: ttyAMA3 at MMIO 0x1000c000 (irq = 41, base_baud = 0) is a PL011 rev1
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource arm,sp804
NET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 1 counters available
futex hash table entries: 1024 (order: 4, 65536 bytes)
squashfs: version 4.0 (2009/01/31) Phillip Lougher
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
9p: Installing v9fs 9p2000 file system support
io scheduler noop registered (default)
clcd-pl11x 10020000.clcd: PL111 rev2 at 0x10020000
clcd-pl11x 10020000.clcd: /address@hidden hardware, address@hidden display
Console: switching to colour frame buffer device 128x48
clcd-pl11x 1001f000.clcd: PL111 rev2 at 0x1001f000
clcd-pl11x 1001f000.clcd: /smb/motherboard/address@hidden,00000000/address@hidden hardware, address@hidden display
40000000.flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000000 Chip ID 0x000000
Intel/Sharp Extended Query Table at 0x0031
Using buffer write method
40000000.flash: Found 2 x16 devices at 0x0 in 32-bit bank. Manufacturer ID 0x000000 Chip ID 0x000000
Intel/Sharp Extended Query Table at 0x0031
Using buffer write method
Concatenating MTD devices:
(0): "40000000.flash"
(1): "40000000.flash"
into device "40000000.flash"
libphy: smsc911x-mdio: probed
smsc911x 4e000000.ethernet eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=4e000000.etherne:01, irq=-1)
smsc911x 4e000000.ethernet eth0: MAC Address:
isp1760 4f000000.usb: bus width: 32, oc: digital
isp1760 4f000000.usb: NXP ISP1760 USB Host Controller
isp1760 4f000000.usb: new USB bus registered, assigned bus number 1
isp1760 4f000000.usb: Scratch test failed.
isp1760 4f000000.usb: can't setup: -19
isp1760 4f000000.usb: USB bus 1 deregistered
usbcore: registered new interface driver usb-storage
mousedev: PS/2 mouse device common for all mice
rtc-pl031 10017000.rtc: rtc core: registered pl031 as rtc0
mmci-pl18x 10005000.mmci: Got CD GPIO
mmci-pl18x 10005000.mmci: Got WP GPIO
mmci-pl18x 10005000.mmci: No vqmmc regulator found
mmci-pl18x 10005000.mmci: mmc0: PL181 manf 41 rev0 at 0x10005000 irq 34,35 (pio)
ledtrig-cpu: registered to indicate activity on CPUs
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
aaci-pl041 10004000.aaci: ARM AC'97 Interface PL041 rev0 at 0x10004000, irq 33
aaci-pl041 10004000.aaci: FIFO 512 entries
oprofile: using arm/armv7-ca9
NET: Registered protocol family 17
9pnet: Installing 9P2000 support
Registering SWP/SWPB emulation handler
rtc-pl031 10017000.rtc: setting system clock to 2017-06-21 13:32:42 UTC (1498051962)
ALSA device list:
#0: ARM AC'97 Interface PL041 rev0 at 0x10004000, irq 33
input: AT Raw Set 2 keyboard as /devices/platform/smb/smb:motherboard/smb:motherboard:address@hidden,00000000/10006000.kmi/serio0/input/input0
input: ImExPS/2 Generic Explorer Mouse as /devices/platform/smb/smb:motherboard/smb:motherboard:address@hidden,00000000/10007000.kmi/serio1/input/input2
VFS: Cannot open root device "sda" or unknown-block(0,0): error -6
Please append a correct "root=" boot option; here are the available partitions:
1f00 131072 mtdblock0 (driver?)
1f01 32768 mtdblock1 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0 #1
Hardware name: ARM-Versatile Express
[<800163bc>] (unwind_backtrace) from [<80012eb8>] (show_stack+0x10/0x14)
[<80012eb8>] (show_stack) from [<80240140>] (dump_stack+0x88/0x98)
[<80240140>] (dump_stack) from [<800a4808>] (panic+0x9c/0x204)
[<800a4808>] (panic) from [<80623250>] (mount_block_root+0x1c0/0x25c)
[<80623250>] (mount_block_root) from [<80623408>] (mount_root+0x11c/0x124)
[<80623408>] (mount_root) from [<80623568>] (prepare_namespace+0x158/0x1a0)
[<80623568>] (prepare_namespace) from [<80622eec>] (kernel_init_freeable+0x268/0x278)
[<80622eec>] (kernel_init_freeable) from [<8049a96c>] (kernel_init+0x8/0xe8)
[<8049a96c>] (kernel_init) from [<8000f4f8>] (ret_from_fork+0x14/0x3c)
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)