I am trying to port android O to my device but encountering issue due to vendor partition not being created (which is mandatory for Android O), as a result the SELinux policy is not being fetched and boot process is being terminated. How can I create a vendor partition to flash the vendor image into.
my device runs on a Qualcomm msm8953 SOC.
below are the boot logs.
309800] nq-nci 5-0028: nqx_probe: probing nqxx failed, check hardware
[ 7.317273] Freeing unused kernel memory: 1196K
[ 7.321143] Freeing alternatives memory: 112K
[ 7.329257] init: init first stage started!
[ 7.332716] init: Using Android DT directory /proc/device-tree/firmware/android/
[ 7.724741] init: bool android::init::FirstStageMount::InitRequiredDevices(): partition(s) not found in /sys, waiting for their uevent(s): vendor
[ 8.878132] of_batterydata_get_best_profile: 2951034_foxda_ef501esp_3000mah_averaged_masterslave_jun6th2017 found
[ 8.894872] FG: fg_batt_profile_init: Battery SOC: 97, V: 4249242uV
[ 8.900528] of_batterydata_get_best_profile: 2951034_foxda_ef501esp_3000mah_averaged_masterslave_jun6th2017 found
[ 8.910371] SMBCHG: smbchg_config_chg_battery_type: Vfloat changed from 4400mV to 4350mV for battery-type 2951034_foxda_ef501esp_3000mah_averaged_masterslave_jun6th2017
[ 17.746065] init: Wait for partitions returned after 10009ms
[ 17.750729] init: bool android::init::FirstStageMount::InitRequiredDevices(): partition(s) not found after polling timeout: vendor
[ 17.768123] init: Failed to mount required partitions early ...
[ 17.773010] init: panic: rebooting to bootloader
[ 17.777611] init: Reboot start, reason: reboot, rebootTarget: bootloader
[ 17.784364] init: android::WriteStringToFile open failed: No such file or directory
[ 17.791947] init: Shutdown timeout: 0 ms
[ 17.795852] init: property_set("persist.vendor.crash.detect", "false") failed: __system_property_add failed
[ 17.805838] init: waitid failed: No child processes
[ 17.810437] init: vold not running, skipping vold shutdown
[ 17.916293] init: powerctl_shutdown_time_ms:138:0
[ 17.919991] init: Reboot ending, jumping to kernel
[ 17.924752] msm_thermal:msm_thermal_update_freq Freq mitigation task is not initialized
[ 17.978348] mdss_fb_release_all: try to close unopened fb 1! from pid:1 name:init
[ 17.984816] mdss_fb_release_all: try to close unopened fb 0! from pid:1 name:init
[ 17.993627] reboot: Restarting system with command 'bootloader'
[ 17.998538] Going down for restart now
[ 18.002831] qcom,qpnp-power-on qpnp-power-on-12: PMIC#SID2: configuring PON for reset
I am encountering this myself and I believe it has to do with a mix of incomplete defconfig and dm-verity in the SoC's dts. Unless you have worked it out by now.
In particular to incomplete defconfig, I had to add options like CONFIG_PINCTRL_MSM8937=y as my android device is technically a 8937. Also, in arch/arm/boot/dts/qcom/msm8937.dtsi I needed to pull the verify flag from fsmgr_flags.
I now have other issues, but I am getting closer to booting.
Related
I followed instructions on https://docs.openvino.ai/latest/omz_demos.html#doxid-omz-demos.
I finished the setup/installation, downloaded the needed models with the omz_download tool and tried to start the interactive demo:
interactive_face_detection_demo ^ --loop ^ -m "C:\Intel\face-detection-adas-0001\FP16\face-detection-adas-0001.xml"
[ INFO ] version: 2022.1.0
[ INFO ] build: 2022.1.0-7019-cdb9bec7210-releases/2022/1
[ INFO ] Reading model: C:\Intel\face-detection-adas-0001\FP16\face-detection-adas-0001.xml
[ INFO ] Model name: mobilenet_ssd_672x384
[ INFO ] Inputs:
[ INFO ] data, f32, {1,3,384,672}, [N,C,H,W]
[ INFO ] Outputs:
[ INFO ] detection_out, f32, {1,1,200,7}, [...]
[ INFO ] The model C:\Intel\face-detection-adas-0001\FP16\face-detection-adas-0001.xml is loaded to CPU
[ INFO ] Device: CPU
[ INFO ] Number of streams: 1
[ INFO ] Number of threads: AUTO
[ ERROR ] PdhAddCounterW() failed: unknown error
How can I get more information about that error / is this a problem with my setup?
(I was able to get everything running on another machine)
System information:
Systemmodell Surface Pro 4
Betriebsystemname Microsoft Windows 10 Pro
Version 10.0.19043 Build 19043
Prozessor Intel(R) Core(TM) i5-6300U CPU # 2.40GHz, 2496 MHz, 2 Kern(e), 4 logische(r) Prozessor(en)
RAM: 4GB
openvino_2022.1.0.643
4.5.5-90-gc3d60a6ca (OpenVINO/2022.1)
Visual Studio 16 2019
Your error appears to be related to Windows performance-counter-API and this error is not related to OpenVINO. For more information about PdhAddCounterW(), you can refer to PdhAddCounterW function (pdh.h).
On another note, try specifying input to the demo as it requires an input to process. Here is an example command:
interactive_face_detection_demo -m "C:\Intel\face-detection-adas-0001\FP16\face-detection-adas-0001.xml" -i <path_to_video>\<input_video>.mp4
I have an ARM based embedded system with 1GB of memory. The kernel, dtb file and root filesystem (initrd.gz) are stored in a FIT file in flash. U-boot loads the FIT into ram and boots the kernel.
I'm having a problem where if I slightly increase the size of my root file system my system no longer boots and I can't figure out where I'm exceeding a memory boundary.
This configuration works (initrd.gz size ~30MB) u-boot output:
Booting using the fdt blob at 0x20683744
Loading Kernel Image ... OK
Loading Ramdisk to 8e1d0000, end 8ffffebd ... OK
Loading Device Tree to 8e1bf000, end 8e1cf118 ... OK
Kernel output:
[ 2.761235] RAMDISK: gzip image found at block 0
[ 5.345119] EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
After increasing the size of initrd.gz this configuration doesn't work (initrd.gz size ~35MB):
Booting using the fdt blob at 0x20683744
Loading Kernel Image ... OK
Loading Ramdisk to 8dfc1000, end 8ffff795 ... OK
Loading Device Tree to 8dfb0000, end 8dfc0118 ... OK
This is the Kernel error I get when trying to use the larger initrd.gz:
[ 2.781244] RAMDISK: gzip image found at block 0
[ 5.731423] RAMDISK: EOF while reading compressed data
[ 5.739401] uncompression error
[ 6.192160] EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
[ 6.200144] VFS: Mounted root (ext4 filesystem) on device 1:0.
[ 6.207089] EXT4-fs error (device ram0): ext4_lookup:1576: inode #2: comm swapper/0: deleted inode referenced: 64974
[ 6.218882] EXT4-fs (ram0): Remounting filesystem read-only
[ 6.225112] devtmpfs: error mounting -117
I have 1GB of ram starting at 0x80000000 and U-boot detects the right amount of memory:
DRAM: already initialized, 1 GiB (capacity:1024 MiB, VGA:0 MiB), ECC off
Kenel config of ramdisk size:
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=1
CONFIG_BLK_DEV_RAM_SIZE=256000
Full U-boot and Kernel Log:
U-Boot SPL 2019.04 (Nov 24 2021 - 18:02:33 +0000)
Trying to boot from RAM
U-Boot 2019.04 (Nov 24 2021 - 18:02:33 +0000)
UnKnow-SOC: 5010203
RST: Power On
eSPI Mode: SIO:Enable : SuperIO-2e
Eth: MAC0: RMII/NCSI, MAC1: RMII/NCSI, MAC2: RMII/NCSI, MAC3: RMII/NCSI
Model: Aspeed BMC
DRAM: already initialized, 1 GiB (capacity:1024 MiB, VGA:0 MiB), ECC off
PCIE-0: Link down
MMC:
sdhci_slot0#100: 1, emmc_slot0#100: 0
Loading Environment from SPI Flash... SF: Detected mt25ql02g with page size 256 Bytes, erase size 4 KiB, total 256 MiB
*** Warning - bad CRC, using default environment
In: serial#1e784000
Out: serial#1e784000
Err: serial#1e784000
Model: Aspeed BMC
adc 15 value = 0x385
board_rev: 3
Net:
Warning: ftgmac#1e660000 (eth0) using random MAC address - 12:2c:e3:e4:22:c7
eth0: ftgmac#1e660000
Warning: ftgmac#1e680000 (eth1) using random MAC address - fa:38:94:5e:b7:43
, eth1: ftgmac#1e680000
Hit any key to stop autoboot: 0
## Loading kernel from FIT Image at 20100000 ...
Using 'conf-1' configuration
Trying 'kernel-1' kernel subimage
Description: Linux kernel
Type: Kernel Image
Compression: uncompressed
Data Start: 0x201000cc
Data Size: 5780952 Bytes = 5.5 MiB
Architecture: ARM
OS: Linux
Load Address: 0x80008000
Entry Point: 0x80008000
Verifying Hash Integrity ... OK
## Loading ramdisk from FIT Image at 20100000 ...
Using 'conf-1' configuration
Trying 'ramdisk-1' ramdisk subimage
Description: RAMDISK
Type: RAMDisk Image
Compression: uncompressed
Data Start: 0x206908e0
Data Size: 35515536 Bytes = 33.9 MiB
Architecture: ARM
OS: Linux
Load Address: unavailable
Entry Point: unavailable
Verifying Hash Integrity ... OK
## Loading fdt from FIT Image at 20100000 ...
Using 'conf-1' configuration
Trying 'fdt-1' fdt subimage
Description: Flattened Device Tree blob
Type: Flat Device Tree
Compression: uncompressed
Data Start: 0x20683754
Data Size: 53529 Bytes = 52.3 KiB
Architecture: ARM
Verifying Hash Integrity ... OK
Booting using the fdt blob at 0x20683754
Loading Kernel Image ... OK
Loading Ramdisk to 8de21000, end 8ffffc90 ... OK
Loading Device Tree to 8de10000, end 8de20118 ... OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0xf00
[ 0.000000] Linux version 5.1.3 (aaron#aaron-VirtualBox) (gcc version 9.2.0 (GCC)) #20 SMP Wed Jan 5 14:22:25 CST 2022
[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: AST2620 PSC
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] cma: Reserved 16 MiB at 0xbf000000
[ 0.000000] random: get_random_bytes called from start_kernel+0x9c/0x4e0 with crng_init=0
[ 0.000000] percpu: Embedded 17 pages/cpu s39820 r8192 d21620 u69632
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 243712
[ 0.000000] Kernel command line: console=ttyS4,115200n8 root=/dev/ram rw
[ 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: 911132K/983040K available (8192K kernel code, 512K rwdata, 1892K rodata, 1024K init, 194K bss, 55524K reserved, 16384K cma-reserved)
[ 0.000000] ftrace: allocating 28861 entries in 57 pages
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] scu-irq controller registered, irq 17
[ 0.000000] scu-irq controller registered, irq 18
[ 0.000000] arch_timer: cp15 timer(s) running at 1200.00MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x114c1bbbeec, max_idle_ns: 440795229572 ns
[ 0.000006] sched_clock: 56 bits at 1200MHz, resolution 0ns, wraps every 2199023255551ns
[ 0.000015] Switching to timer-based delay loop, resolution 0ns
[ 0.001364] Calibrating delay loop (skipped), value calculated using timer frequency.. 2400.00 BogoMIPS (lpj=12000000)
[ 0.001381] pid_max: default: 32768 minimum: 301
[ 0.001584] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.001598] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.002112] *** VALIDATE proc ***
[ 0.002213] *** VALIDATE cgroup1 ***
[ 0.002224] *** VALIDATE cgroup2 ***
[ 0.002234] CPU: Testing write buffer coherency: ok
[ 0.002522] /cpus/cpu#0 missing clock-frequency property
[ 0.002538] /cpus/cpu#1 missing clock-frequency property
[ 0.002549] CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00
[ 0.003326] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.003436] rcu: Hierarchical SRCU implementation.
[ 0.004015] smp: Bringing up secondary CPUs ...
[ 0.004543] CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01
[ 0.004678] smp: Brought up 1 node, 2 CPUs
[ 0.004690] SMP: Total of 2 processors activated (4800.00 BogoMIPS).
[ 0.004695] CPU: All CPU(s) started in SVC mode.
[ 0.005462] devtmpfs: initialized
[ 0.015183] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[ 0.015413] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.015436] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 0.016155] pinctrl core: initialized pinctrl subsystem
[ 0.016780] NET: Registered protocol family 16
[ 0.017796] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.019143] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.019159] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.034904] i2cg - base_clk0 : 1000000
[ 0.034974] i2cg - base_clk1 : 4000000
[ 0.035007] i2cg - base_clk2 : 10000000
[ 0.035030] i2cg - base_clk3 : 33333333
[ 0.035059] i2c global registered
[ 0.052820] vgaarb: loaded
[ 0.053173] SCSI subsystem initialized
[ 0.053462] usbcore: registered new interface driver usbfs
[ 0.053527] usbcore: registered new interface driver hub
[ 0.053629] usbcore: registered new device driver usb
[ 0.053777] EDAC MC: Ver: 3.0.0
[ 0.056747] clocksource: Switched to clocksource arch_sys_counter
[ 0.102558] NET: Registered protocol family 2
[ 0.103052] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[ 0.103077] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.103136] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.103232] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.103337] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.103383] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.103595] NET: Registered protocol family 1
[ 0.104121] RPC: Registered named UNIX socket transport module.
[ 0.104133] RPC: Registered udp transport module.
[ 0.104138] RPC: Registered tcp transport module.
[ 0.104142] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.104365] Trying to unpack rootfs image as initramfs...
[ 0.104959] rootfs image is not initramfs (no cpio magic); looks like an initrd
[ 0.230086] Freeing initrd memory: 34684K
[ 0.232404] workingset: timestamp_bits=30 max_order=18 bucket_order=0
[ 0.232955] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.233298] jffs2: version 2.2. (SUMMARY) © 2001-2006 Red Hat, Inc.
[ 0.238540] NET: Registered protocol family 38
[ 0.238631] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 0.240354] PCIE- Link down
[ 0.240394] aspeed-pcie 1e6ed200.pcie: host bridge /ahb/apb/pcie#1e6ed2000 ranges:
[ 0.240439] aspeed-pcie 1e6ed200.pcie: IO 0x00010000..0x0001ffff -> 0x00010000
[ 0.240463] aspeed-pcie 1e6ed200.pcie: MEM 0x70000000..0x7ffffffe -> 0x70000000
[ 0.240601] aspeed-pcie 1e6ed200.pcie: PCI host bridge to bus 0000:00
[ 0.240615] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 0.240625] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] (bus address [0x10000-0x1ffff])
[ 0.240634] pci_bus 0000:00: root bus resource [mem 0x70000000-0x7ffffffe]
[ 0.244693] PCI: bus0: Fast back to back transfers disabled
[ 0.246332] aspeed-kcs-bmc: channel=1 addr=0xca0 idr=0x24 odr=0x30 str=0x3c
[ 0.247024] aspeed-kcs-bmc: channel=2 addr=0xca8 idr=0x28 odr=0x34 str=0x40
[ 0.247519] aspeed-kcs-bmc: channel=3 addr=0xca2 idr=0x2c odr=0x38 str=0x44
[ 0.249831] aspeed_jtag: driver successfully loaded.
[ 0.250549] aspeed_mctp: reset.
[ 0.251512] aspeed_mctp: driver successfully loaded.
[ 0.251843] aspeed_mctp 1e6f9000.mctp: no irq specified
[ 0.251924] aspeed_mctp: reset.
[ 0.252556] aspeed_mctp: driver successfully loaded.
[ 0.253971] Serial: 8250/16550 driver, 17 ports, IRQ sharing enabled
[ 0.259918] rts_gpio: 912
[ 0.260616] 1e783000.serial: ttyS0 at MMIO 0x1e783000 (irq = 55, base_baud = 115384) is a 16550A
[ 0.261593] 1e784000.serial: ttyS4 at MMIO 0x1e784000 (irq = 56, base_baud = 115384) is a 16550A
[ 0.963132] printk: console [ttyS4] enabled
[ 0.968571] rts_gpio: 913
[ 0.971997] 1e78d000.serial: ttyS1 at MMIO 0x1e78d000 (irq = 64, base_baud = 115384) is a 16550A
[ 0.982439] rts_gpio: 914
[ 0.985636] 1e78e000.serial: ttyS2 at MMIO 0x1e78e000 (irq = 65, base_baud = 115384) is a 16550A
[ 0.996096] rts_gpio: 984
[ 0.999323] 1e790000.serial: ttyS5 at MMIO 0x1e790000 (irq = 74, base_baud = 115384) is a 16550A
[ 1.009701] rts_gpio: 985
[ 1.012888] 1e790100.serial: ttyS6 at MMIO 0x1e790100 (irq = 75, base_baud = 115384) is a 16550A
[ 1.023277] rts_gpio: 986
[ 1.026465] 1e790200.serial: ttyS7 at MMIO 0x1e790200 (irq = 76, base_baud = 115384) is a 16550A
[ 1.036908] rts_gpio: 987
[ 1.040107] 1e790300.serial: ttyS8 at MMIO 0x1e790300 (irq = 77, base_baud = 115384) is a 16550A
[ 1.066850] timeriomem_rng 1e6e2524.hwrng: 32bits from 0x(ptrval) # 1us
[ 1.075683] brd: module loaded
[ 1.085457] loop: module loaded
[ 1.102789] aspeed_espi: driver successfully loaded.
[ 1.109342] aspeed espi oob loaded
[ 1.114069] aspeed espi-flash loaded
[ 1.118894] aspeed espi-vw loaded
[ 1.123077] no host mapping address
[ 1.127638] aspeed espi-peripheral loaded
[ 1.133917] Uniform Multi-Platform E-IDE driver
[ 1.139157] ide-gd driver 1.18
[ 1.143380] aspeed-smc 1e620000.spi: bus_width 4, Using 50 MHz SPI frequency
[ 1.151375] aspeed-smc 1e620000.spi: mt25ql02g (262144 Kbytes)
[ 1.157905] aspeed-smc 1e620000.spi: CE0 window [ 0x20000000 - 0x30000000 ] 256MB
[ 1.166274] aspeed-smc 1e620000.spi: CE1 window [ 0x30000000 - 0x30000000 ] 0MB (disabled)
[ 1.175514] aspeed-smc 1e620000.spi: read control register: [406c0641]
[ 1.231003] 2 fixed-partitions partitions found on MTD device bmc
[ 1.237840] Creating 2 MTD partitions on "bmc":
[ 1.242900] 0x000000000000-0x0000000f0000 : "u-boot"
[ 1.249735] 0x0000000f0000-0x000000100000 : "u-boot-env"
[ 1.258061] fmc_spi 1e631000.spi: controller is unqueued, this is deprecated
[ 1.265961] fmc_spi_setup() cs: 0, spi->mode 0 spi->max_speed_hz 10000000 , spi->bits_per_word 8
[ 1.275894] spi_ctrl 1000600
[ 1.279315] fmc_spi 1e631000.spi: fmc_spi : driver loaded
[ 1.285718] Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
[ 1.295321] libphy: mdio-aspeed: probed
[ 1.317527] libphy: mdio-aspeed: probed
[ 1.337571] libphy: Fixed MDIO Bus: probed
[ 1.342821] CAN device driver interface
[ 1.347342] fmc_spi_setup() cs: 0, spi->mode 0 spi->max_speed_hz 10000000 , spi->bits_per_word 8
[ 1.357277] spi_ctrl 1000600
[ 1.366718] random: fast init done
[ 1.376060] mcp251x spi0.0 can0: MCP2515 successfully initialized.
[ 1.383412] ftgmac100 1e660000.ftgmac: Read MAC address 12:2c:e3:e4:22:c7 from chip
[ 1.706721] Micrel KSZ9031 Gigabit PHY 1e650000.mdio-1:01: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=1e650000.mdio-1:01, irq=POLL)
[ 1.722810] ftgmac100 1e660000.ftgmac eth0: irq 40, mapped at (ptrval)
[ 1.730423] ftgmac100 1e680000.ftgmac: Read MAC address fa:38:94:5e:b7:43 from chip
[ 1.966759] random: crng init done
[ 2.056721] Micrel KSZ9031 Gigabit PHY 1e650008.mdio-1:02: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=1e650008.mdio-1:02, irq=POLL)
[ 2.072798] ftgmac100 1e680000.ftgmac eth1: irq 41, mapped at 5781ec99
[ 2.080378] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.087688] ehci-pci: EHCI PCI platform driver
[ 2.092720] ehci-platform: EHCI generic platform driver
[ 2.098831] uhci_hcd: USB Universal Host Controller Interface driver
[ 2.106844] usbcore: registered new interface driver usb-storage
[ 2.114566] aspeed-rtc 1e781000.rtc: registered as rtc0
[ 2.120701] i2c /dev entries driver
[ 2.125785] I2C: i2c-bus [0]: adapter [100 khz]
[ 2.131948] I2C: i2c-bus [1]: adapter [100 khz]
[ 2.138084] I2C: i2c-bus [2]: adapter [100 khz]
[ 2.144187] I2C: i2c-bus [3]: adapter [100 khz]
[ 2.150371] I2C: i2c-bus [4]: adapter [100 khz]
[ 2.156494] I2C: i2c-bus [5]: adapter [100 khz]
[ 2.162623] I2C: i2c-bus [6]: adapter [100 khz]
[ 2.168811] I2C: i2c-bus [7]: adapter [100 khz]
[ 2.175180] dt: /memory node resources: first page r.start=0x80000000, resource_size=0x40000000, PAGE_SHIFT macro=0xc
[ 2.187201] EDAC MC0: Giving out device to module aspeed-edac controller MIC: DEV 1e6e0000.sdram (INTERRUPT)
[ 2.199022] sdhci: Secure Digital Host Controller Interface driver
[ 2.205926] sdhci: Copyright(c) Pierre Ossman
[ 2.210801] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.218349] sdhci-aspeed 1e740100.sdhci: Configuring for slot 0
[ 2.225083] devm_gpio_request pwr fail
[ 2.229396] devm_gpio_request pwr sw fail
[ 2.286744] mmc1: SDHCI controller on 1e740100.sdhci [1e740100.sdhci] using PIO
[ 2.295792] sdhci-aspeed 1e750100.sdhci: Configuring for slot 0
[ 2.356732] mmc0: SDHCI controller on 1e750100.sdhci [1e750100.sdhci] using ADMA
[ 2.383950] ASPEED Crypto Accelerator successfully registered
[ 2.401745] ASPEED RSA Accelerator successfully registered
[ 2.408446] usbcore: registered new interface driver usbhid
[ 2.414669] usbhid: USB HID core driver
[ 2.426826] aspeed_adc: trim 8
[ 2.431344] aspeed_adc: cv 6
[ 2.435474] aspeed_adc: trim 8
[ 2.440023] aspeed_adc: cv 8
[ 2.444788] peci-aspeed 1e78b000.peci-bus: peci bus 0 registered, irq 63
[ 2.453654] NET: Registered protocol family 10
[ 2.459779] Segment Routing with IPv6
[ 2.464342] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 2.471701] NET: Registered protocol family 17
[ 2.476681] can: controller area network core (rev 20170425 abi 9)
[ 2.483668] NET: Registered protocol family 29
[ 2.488654] can: raw protocol (rev 20170425)
[ 2.493416] can: broadcast manager protocol (rev 20170425 t)
[ 2.499747] can: netlink gateway (rev 20170425) max_hops=1
[ 2.505935] 8021q: 802.1Q VLAN Support v1.8
[ 2.510714] Registering SWP/SWPB emulation handler
[ 2.523358] liteon-pmc pmc: added a shelf FRU device
[ 2.583924] mmc0: Tuning failed, falling back to fixed sampling clock
[ 2.591583] mmc0: new HS200 MMC card at address 0001
[ 2.597851] mmcblk0: mmc0:0001 4FPD3R 3.64 GiB
[ 2.603214] mmcblk0boot0: mmc0:0001 4FPD3R partition 1 4.00 MiB
[ 2.610176] mmcblk0boot1: mmc0:0001 4FPD3R partition 2 4.00 MiB
[ 2.617078] mmcblk0rpmb: mmc0:0001 4FPD3R partition 3 512 KiB, chardev (246:0)
[ 2.626207] mmcblk0: p1 p2 p3
[ 2.776758] liteon-pmc pmc: Driver initialized
[ 2.782163] printk: console [netcon0] enabled
[ 2.787065] netconsole: network logging started
[ 2.792396] aspeed-rtc 1e781000.rtc: hctosys: unable to read the hardware clock
[ 2.801284] RAMDISK: gzip image found at block 0
[ 2.921922] uncompression error
[ 2.972435] EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
[ 2.980416] VFS: Mounted root (ext4 filesystem) on device 1:0.
[ 2.987294] EXT4-fs error (device ram0): ext4_lookup:1576: inode #2: comm swapper/0: deleted inode referenced: 64974
[ 2.999086] EXT4-fs (ram0): Remounting filesystem read-only
[ 3.005312] devtmpfs: error mounting -117
[ 3.012546] Freeing unused kernel memory: 1024K
[ 3.047716] Checked W+X mappings: passed, no W+X pages found
[ 3.054041] Run /sbin/init as init process
[ 3.058946] EXT4-fs error (device ram0): ext4_lookup:1576: inode #2: comm swapper/0: deleted inode referenced: 145588
[ 3.070854] Starting init: /sbin/init exists but couldn't execute it (error -117)
[ 3.079216] Run /etc/init as init process
[ 3.083933] EXT4-fs error (device ram0): ext4_lookup:1576: inode #2: comm swapper/0: deleted inode referenced: 16411
[ 3.095740] Starting init: /etc/init exists but couldn't execute it (error -117)
[ 3.104009] Run /bin/init as init process
[ 3.108741] EXT4-fs error (device ram0): ext4_lookup:1576: inode #2: comm swapper/0: deleted inode referenced: 81107
[ 3.120551] Starting init: /bin/init exists but couldn't execute it (error -117)
[ 3.128827] Run /bin/sh as init process
[ 3.133153] EXT4-fs error (device ram0): ext4_lookup:1576: inode #2: comm swapper/0: deleted inode referenced: 81107
[ 3.144969] Starting init: /bin/sh exists but couldn't execute it (error -117)
[ 3.153044] Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance.
[ 3.168864] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.1.3 #20
[ 3.175465] Hardware name: Generic DT based system
[ 3.180806] Backtrace:
[ 3.183544] [<8010e5fc>] (dump_backtrace) from [<8010e880>] (show_stack+0x20/0x24)
[ 3.191993] r7:809fa93c r6:60000093 r5:00000000 r4:80c6c0a4
[ 3.198311] [<8010e860>] (show_stack) from [<808af8ac>] (dump_stack+0x8c/0xa0)
[ 3.206373] [<808af820>] (dump_stack) from [<80121b78>] (panic+0x124/0x2f0)
[ 3.214139] r7:809fa93c r6:80c11e84 r5:00000000 r4:80c80648
[ 3.220456] [<80121a58>] (panic) from [<808c74b0>] (kernel_init+0x11c/0x124)
[ 3.228320] r3:80c09c48 r2:00000000 r1:3dc34000 r0:809fa93c
[ 3.234628] r7:00000000
[ 3.237452] [<808c7394>] (kernel_init) from [<801010e8>] (ret_from_fork+0x14/0x2c)
[ 3.245896] Exception stack(0xbe0e5fb0 to 0xbe0e5ff8)
[ 3.251530] 5fa0: 00000000 00000000 00000000 00000000
[ 3.260654] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 3.269778] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 3.277154] r5:808c7394 r4:00000000
[ 3.281145] CPU0: stopping
[ 3.284164] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.1.3 #20
[ 3.290764] Hardware name: Generic DT based system
[ 3.296103] Backtrace:
[ 3.298832] [<8010e5fc>] (dump_backtrace) from [<8010e880>] (show_stack+0x20/0x24)
[ 3.307278] r7:00000000 r6:60000193 r5:00000000 r4:80c6c0a4
[ 3.313593] [<8010e860>] (show_stack) from [<808af8ac>] (dump_stack+0x8c/0xa0)
[ 3.321653] [<808af820>] (dump_stack) from [<80111668>] (handle_IPI+0x340/0x374)
[ 3.329904] r7:00000000 r6:00000000 r5:00000004 r4:80c80508
[ 3.336219] [<80111328>] (handle_IPI) from [<80102230>] (gic_handle_irq+0x84/0x88)
[ 3.344667] r10:80b5da40 r9:80c00000 r8:80c01ed8 r7:c0803000 r6:c0802000 r5:c080200c
[ 3.353401] r4:80c0a304 r3:80109afc
[ 3.357388] [<801021ac>] (gic_handle_irq) from [<80101a6c>] (__irq_svc+0x6c/0x90)
[ 3.365733] Exception stack(0x80c01ed8 to 0x80c01f20)
[ 3.371365] 1ec0: 00000000 000015f0
[ 3.380491] 1ee0: be7b18a0 8011c500 80c00000 00000000 80c09c70 80c09cac 80c71405 80a020d0
[ 3.389616] 1f00: 80b5da40 80c01f34 80c01f38 80c01f28 80109afc 80109b00 60000013 ffffffff
[ 3.398741] r9:80c00000 r8:80c71405 r7:80c01f0c r6:ffffffff r5:60000013 r4:80109b00
[ 3.407385] [<80109ab8>] (arch_cpu_idle) from [<808ceef4>] (default_idle_call+0x30/0x3c)
[ 3.416415] [<808ceec4>] (default_idle_call) from [<80154524>] (do_idle+0xe8/0x168)
[ 3.424960] [<8015443c>] (do_idle) from [<80154870>] (cpu_startup_entry+0x28/0x2c)
[ 3.433407] r9:80c80280 r8:80c09c40 r7:80c80280 r6:ffffffff r5:00000001 r4:000000c9
[ 3.442049] [<80154848>] (cpu_startup_entry) from [<808c738c>] (rest_init+0xb8/0xc0)
[ 3.450691] [<808c72d4>] (rest_init) from [<80b00b94>] (arch_call_rest_init+0x18/0x1c)
[ 3.459521] r5:00000001 r4:80c802d8
[ 3.463509] [<80b00b7c>] (arch_call_rest_init) from [<80b0109c>] (start_kernel+0x4a4/0x4e0)
[ 3.472827] [<80b00bf8>] (start_kernel) from [<00000000>] ( (null))
[ 3.479923] WDT reset called
BP
Root cause of issue:
It looks like ASPEED modified the low level memmove function in /lib/string.c to speed up flash copies. In their code, count is changed to a 4 byte boundary which breaks the back to front copy from memmove_wd.
#ifdef CONFIG_ASPEED_SPI_DMA
if (dest == src)
return dest;
if (
((u32)src >= ASPEED_FMC_CS0_BASE)
&& ((u32)src < (ASPEED_FMC_CS0_BASE + 0x10000000))) {
count = ((count + 3) / 4) * 4;
aspeed_spi_fastcpy((u32)dest, (u32)src, count);
return dest;
}
#endif
I switched memmove_wd() in u-boot/common/image.c to a simpler front to back copy and added the check for CONFIG_WDT and everything works now.
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) || defined(CONFIG_WDT)
{
while (len > 0)
{
size_t chunk = (len > chunksz) ? chunksz : len;
WATCHDOG_RESET();
memmove(to, from, chunk);
to += chunk;
from += chunk;
len -= chunk;
}
Another option would be to disable CONFIG_ASPEED_SPI_DMA.
Description:
After about 1 week of debugging to figure out the cause of the application closing itself without any error message, I discovered that the main cause of crashing is from the node-ios-device library.
Everything works normally, but after about 1 hour, a crash occurs. What I think is strange is that a crash occurs even iosDevice.watch() was not called. Or just by importing the node-ios-devices library can a crash occur.
Sometimes, I got this message after crashing as well.
[21194:0607/225605.295914:FATAL:message_pump_kqueue.cc(387)] : Bad file descriptor (9)
It still works on my NodeJS project.
Reproduction:
https://github.com/zcmgyu/crash-electron-node-ios-device/blob/master/main.js#L22-L28
const handle = iosDevice.watch();
handle.on('change', devices => {
console.log('Connected devices:', devices);
});
handle.on('error', console.error);
iosDevice.on('log', msg => console.log(msg));
This is logs output from iosDevice.on('log')
$ electron .
Creating device list with 1 devices
Connected devices: [
{
udid: 'XXXX',
interfaces: [ 'Wi-Fi' ],
name: 'ZC X',
buildVersion: '17F75',
cpuArchitecture: 'arm64',
deviceClass: 'iPhone',
deviceColor: 'Black',
hardwareModel: 'D22AP',
modelNumber: 'MQAY2',
productType: 'iPhone10,3',
productVersion: '13.5',
serialNumber: 'FK1VVTGLJCLL',
trustedHostAttached: false
}
]
Adding listener
Creating device list with 1 devices
Resetting timer due to new device notification
Device XXXX disconnected via Wi-Fi
Connected devices: []
Creating device list with 0 devices
Dispatching device changes to 1 listener (thread 2978043419396287625)
Resetting timer due to new device notification
Device XXXX connected via Wi-Fi
Getting device info for XXXX
Connecting to device: XXXX
Pairing device: XXXX
Validating device pairing
Starting session: XXXX
Stopping session: XXXX
Disconnecting from device: XXXX
Connected devices: [
{
udid: 'XXXX',
interfaces: [ 'Wi-Fi' ],
name: 'ZC X',
buildVersion: '17F75',
cpuArchitecture: 'arm64',
deviceClass: 'iPhone',
deviceColor: 'Black',
hardwareModel: 'D22AP',
modelNumber: 'MQAY2',
productType: 'iPhone10,3',
productVersion: '13.5',
serialNumber: 'FK1VVTGLJCLL',
trustedHostAttached: false
}
]
Creating device list with 1 devices
Dispatching device changes to 1 listener (thread 2978043419396287625)
Resetting timer due to new device notification
Device XXXX disconnected via Wi-Fi
Connected devices: []
✨ Done in 225.28s.
macOS: 10.15.4
node-ios-device: 2.0.2
electron: 9.0.2
node: 14.3.0
There is no alternative library so I could fulfill my project without this one. Please save my day.
I am a noob to building custom linux OSes for embedded boards - so please ignore my ignorance.
I have a board called NanoPi NEO that has custom Debian linux. Now the board comes with a .img file that can be flashed on to an SD card and plugged into the slot and the board boots from the card.
Now I am trying to build my own Custom linux and flash to the SD card. I have been through the forums and manuals and managed to get this far.
Problem
I understand that there are three components to a custom linux build
boot0 - The thing that loads the BootLoader
U-Boot - One of the many BootLoaders. (The project uses this).
Rootfs - The filesystem and everything else.
The board manufacturer's website gave these instructions for building custom os. I followed those instructions and did everything including proper partitioning of the SD card (with free space in front for boot0, boot partition with uImage and Script.bin, and partition for rootfs)
The problem is that the board loads the Kernel on boot but doesn't mount the filesystem and prove a user prompt.
This is the Dmesg output.
HELLO! BOOT0 is starting!
boot0 version : 4.0.0
boot0 commit : 9d0a4ce0ba7756bc0de2e0efe7ec15900a4aa947
fel_flag = 0x00000000
rtc[0] value = 0x00000000
rtc[1] value = 0x00000000
rtc[2] value = 0x00000000
rtc[3] value = 0x00000000
rtc[4] value = 0x00000000
rtc[5] value = 0x00000000
rtc[6] value = 0x00000000
rtc[7] value = 0x00000000
DRAM DRIVE INFO: V1.3
the chip id is 0x00000081
the chip id is 0x00000081
the chip id is 0x00000081
the chip id is 0x00000081
the chip id is 0x00000081
READ DQS LCDL = 00242524
DRAM Type = 3 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3)
DRAM CLK = 576 MHz
DRAM zq value: 003b3bfb
DRAM dram para1: 10e20100
DRAM dram para2: 00000001
DRAM workmode1: 000009f4
DRAM SIZE =256 M
odt delay
dram size =256
card boot number = 0
card no is 0
sdcard 0 line count 4
[mmc]: mmc driver ver 2015-04-13 16:07:39
[mmc]: ***Try SD card 0***
[mmc]: SD/MMC Card: 4bit, capacity: 3812MB
[mmc]: vendor: Man 00845446 Snr 0000200b
[mmc]: product: SD[mmc]: revision: 0.0
[mmc]: ***SD/MMC 0 init OK!!!***
sdcard 0 init ok
The size of uboot is 000e4000.
sum=5b02f845
src_sum=5b02f845
Succeed in loading uboot from sdmmc flash.
Ready to disable icache.
Jump to secend Boot.
SUNXI_NORMAL_MODE
[ 0.380]e mode
U-Boot 2011.09-rc1-00000-g9d0a4ce-dirty (Aug 18 2016 - 15:53:02) Allwinner Technology
[ 0.390]version: 1.1.0
[ 0.392]uboot commit : 9d0a4ce0ba7756bc0de2e0efe7ec15900a4aa947
normal mode
[ 0.403]pmbus: ready
not set main pmu id
axp_probe error
gpio value=0x20000
[ 0.441]PMU: pll1 1008 Mhz,PLL6=600 Mhz
AXI=336 Mhz,AHB=200 Mhz, APB1=100 Mhz
sid read already
fel key new mode
run key detect
no key found
no key input
dram_para_set start
dram_para_set end
normal mode
[ 0.472]DRAM: 256 MiB
relocation Offset is: 05af2000
[box standby] read rtc = 0x0
[box_start_os] mag be start_type no use
user_gpio config
user_gpio ok
gic: normal or no secure os mode
workmode = 0
MMC: 0
[ 0.552][mmc]: mmc driver ver 2015-04-13 14:50:00
[ 0.557][mmc]: get sdc_phy_wipe fail.
[ 0.561][mmc]: get sdc0 sdc_erase fail.
[ 0.565][mmc]: get sdc_f_max fail,use default 50000000Hz
[ 0.570][mmc]: get sdc_ex_dly_used fail,use default dly
[ 0.576][mmc]: SUNXI SD/MMC: 0
[ 0.589][mmc]: *Try SD card 0*
[ 0.622][mmc]: CID 0x84544653 0x44000000 0x20 0xb01014f
[ 0.627][mmc]: mmc clk 50000000
[ 0.630][mmc]: SD/MMC Card: 4bit, capacity: 3812MB
[ 0.635][mmc]: boot0 capacity: 0KB,boot1 capacity: 0KB
[ 0.640][mmc]: ***SD/MMC 0 init OK!!!***
[ 0.645][mmc]: erase_grp_size:0x1WrBlk * 0x200 = 0x200 Byte
[ 0.651][mmc]: secure_feature 0x0
[ 0.654][mmc]: secure_removal_type 0x0
[ 0.658]sunxi flash init ok
script config pll_de to 864 Mhz
Not Found clk pll_video1 in script
script config pll_video to 297 Mhz
script config pll_periph0 to 600 Mhz
unable to find regulator vcc-hdmi-18 from [pmu1_regu] or [pmu2_regu]
enable power vcc-hdmi-18, ret=-1
DRV_DISP_Init end
[disk_read_fs] no the partition
error: open tv_vdid.fex, maybe it is not exist
[disk_read_fs] no the partition
error: open disp_rsl.fex, maybe it is not exist
[disk_read_fs] no the partition
error: open disp_rsl.fex, maybe it is not exist
boot_disp.auto_hpd=1
auto hpd check has 100 times!
auto check no any connected, the output_type is 4
[ 2.032]finally, output_type=0x4, output_mode=0x4, screen_id=0x0, disp_para=0x0
try to read logic blk 0 without env partition
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
--------fastboot partitions--------
mbr not exist
base bootcmd=run setargs_mmc boot_normal
bootcmd set setargs_mmc
key 0
cant find rcvy value
cant find fstbt value
no misc partition is found
to be run cmd=run setargs_mmc boot_normal
[ 2.080][mmc]: MMC Device 2 not found
[ 2.084][mmc]: Can not find mmc dev
[ 2.087][mmc]: read first backup failed in fun sdmmc_secure_storage_read line 1854
sunxi_secstorage_read fail
get secure storage map err
check user data form private
the private part isn't exist
WORK_MODE_BOOT
adver not need show
sunxi_bmp_logo_display
[disk_read_fs] no the partition
error: open bootlogo.bmp, maybe it is not exist
sunxi bmp info error : unable to open logo file bootlogo.bmp
[ 2.123]Hit any key to stop autoboot: 0
[ 4.300][mmc]: blkcnt should not be 0
## Booting kernel from Legacy Image at 40007800 ...
Image Name: Linux-3.4.39-h3
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 4522784 Bytes = 4.3 MiB
Load Address: 40008000
Entry Point: 40008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
[ 4.603][mmc]: MMC Device 2 not found
[ 4.607][mmc]: mmc not find,so not exit
[ 4.611]
Starting kernel ...
[sun8i_fixup]: From boot, get meminfo:
Start: 0x40000000
Size: 256MB
ion_carveout reserve: 160m#0 256m#0 130m#1 200m#1
ion_reserve_select: ion chipid [0x2c00081!
ion_reserve_common: ion reserve: [0x46000000, 0x50000000]!
[ 0.000000] Booting Linux on physical CPU 0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.4.39-h3 (azmath#azPC) (gcc version 4.6.3 20120201 (prerelease) (crosstool-NG linaro-1.13.1-2012.02-20120222 - Linaro GCC 2012.02) ) #1 SMP PREEMPT Thu Aug 18 15:52:21 IST 2016
[ 0.000000] cma: CMA: reserved 160 MiB at 46000000
[ 0.000000] PERCPU: Embedded 8 pages/cpu #c0c91000 s11840 r8192 d12736 u32768
[ 0.000000] Kernel command line: console=ttyS0,115200 console=tty0 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait init=/sbin/init
[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] allocated 524288 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] Memory: 256MB = 256MB total
[ 0.000000] Memory: 84012k/84012k available, 178132k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc089dfd4 (8792 kB)
[ 0.000000] .init : 0xc089e000 - 0xc08eee40 ( 324 kB)
[ 0.000000] .data : 0xc08f0000 - 0xc096a878 ( 491 kB)
[ 0.000000] .bss : 0xc096b02c - 0xc0a3fc88 ( 852 kB)
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Additional per-CPU info printed with stalls.
[ 0.000000] NR_IRQS:544
[ 0.000000] Architected local timer running at 24.00MHz.
[ 0.000000] Switching to timer-based delay loop
[ 0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000000] console [tty0] enabled
[ 0.001029] Calibrating delay loop (skipped), value calculated using timer frequency.. 4800.00 BogoMIPS (lpj=24000000)
[ 0.001097] pid_max: default: 32768 minimum: 301
[ 0.001458] Mount-cache hash table entries: 512
[ 0.002521] Initializing cgroup subsys cpuacct
[ 0.002561] Initializing cgroup subsys memory
[ 0.002631] Initializing cgroup subsys devices
[ 0.002663] Initializing cgroup subsys freezer
[ 0.002692] Initializing cgroup subsys blkio
[ 0.002736] Initializing cgroup subsys perf_event
[ 0.002813] CPU: Testing write buffer coherency: ok
[ 0.002890] ftrace: allocating 24150 entries in 71 pages
[ 0.030315] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.030365] [sunxi_smp_prepare_cpus] enter
[ 0.030417] Setting up static identity map for 0x4061f8e0 - 0x4061f938
[ 0.031457] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.031592] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[ 0.031592] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[ 0.040210] Brought up 4 CPUs
[ 0.040292] SMP: Total of 4 processors activated (19200.00 BogoMIPS).
[ 0.041034] devtmpfs: initialized
[ 0.043817] wakeup src cnt is : 2.
[ 0.043914] sunxi pm init
[ 0.044064] pinctrl core: initialized pinctrl subsystem
[ 0.054192] NET: Registered protocol family 16
[ 0.054986] DMA: preallocated 2048 KiB pool for atomic coherent allocations
[ 0.054986] script_sysfs_init success
[ 0.054986] gpiochip_add: registered GPIOs 0 to 383 on device: sunxi-pinctrl
[ 0.054986] sunxi-pinctrl sunxi-pinctrl: initialized sunXi PIO driver
[ 0.054986] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[ 0.054986] hw-breakpoint: maximum watchpoint size is 8 bytes.
[ 0.055148] script config pll_video to 297 Mhz
[ 0.055180] script config pll_de to 864 Mhz
[ 0.055205] script config pll_ve to 402 Mhz
[ 0.061950] bio: create slab <bio-0> at 0
[ 0.061950] [ARISC] :sunxi-arisc driver v1.04
[ 0.076943] [ARISC] :arisc version: [v0.1.58]
[ 0.163654] [ARISC] :sunxi-arisc driver v1.04 startup succeeded
[ 0.163781] pwm module init!
[ 0.171646] SCSI subsystem initialized
[ 0.171646] usbcore: registered new interface driver usbfs
[ 0.171646] usbcore: registered new interface driver hub
[ 0.171646] usbcore: registered new device driver usb
[ 0.171646] twi_chan_cfg()340 - [twi0] has no twi_regulator.
[ 0.171646] twi_chan_cfg()340 - [twi1] has no twi_regulator.
[ 0.171646] twi_chan_cfg()340 - [twi2] has no twi_regulator.
[ 0.171646] Linux video capture interface: v2.00
[ 0.171718] Advanced Linux Sound Architecture Driver Version 1.0.25.
[ 0.172304] Bluetooth: Core ver 2.16
[ 0.172369] NET: Registered protocol family 31
[ 0.172393] Bluetooth: HCI device and connection manager initialized
[ 0.172422] Bluetooth: HCI socket layer initialized
[ 0.172445] Bluetooth: L2CAP socket layer initialized
[ 0.172479] Bluetooth: SCO socket layer initialized
[ 0.172586] Switching to clocksource arch_sys_counter
[ 0.183438] FS-Cache: Loaded
[ 0.183767] CacheFiles: Loaded
[ 0.195670] NET: Registered protocol family 2
[ 0.195984] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.196546] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.196714] TCP bind hash table entries: 8192 (order: 4, 98304 bytes)
[ 0.196858] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.196886] TCP: reno registered
[ 0.196908] UDP hash table entries: 128 (order: 0, 4096 bytes)
[ 0.196953] UDP-Lite hash table entries: 128 (order: 0, 4096 bytes)
[ 0.197265] NET: Registered protocol family 1
[ 0.197667] RPC: Registered named UNIX socket transport module.
[ 0.197701] RPC: Registered udp transport module.
[ 0.197722] RPC: Registered tcp transport module.
[ 0.197743] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.198224] hw perfevents: enabled with ARMv7 Cortex_A7 PMU driver, 5 counters available
[ 0.198362] sunxi_reg_init enter
[ 0.199096] audit: initializing netlink socket (disabled)
[ 0.199161] type=2000 audit(0.190:1): initialized
[ 0.201581] NTFS driver 2.1.30 [Flags: R/W].
[ 0.201895] fuse init (API version 7.18)
[ 0.202256] msgmni has been set to 484
[ 0.203709] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[ 0.203759] io scheduler noop registered
[ 0.203779] io scheduler deadline registered
[ 0.203851] io scheduler cfq registered (default)
[ 0.204325] [DISP]disp_module_init
[ 0.204656] cmdline,init_disp=
[ 0.204696] cmdline,disp=
[ 0.214840] [DISP] Fb_map_kernel_logo,line:926:Fb_map_kernel_logo failed!
[ 0.230039] Console: switching to colour frame buffer device 160x45
[ 0.246402] [DISP]disp_module_init finish
[ 0.246750] sw_uart_get_devinfo()1503 - uart0 has no uart_regulator.
[ 0.246930] sw_uart_get_devinfo()1503 - uart1 has no uart_regulator.
[ 0.247103] sw_uart_get_devinfo()1503 - uart2 has no uart_regulator.
[ 0.247276] sw_uart_get_devinfo()1503 - uart3 has no uart_regulator.
[ 0.248031] uart0: ttyS0 at MMIO 0x1c28000 (irq = 32) is a SUNXI
[ 0.248209] sw_uart_pm()890 - uart0 clk is already enable
[ 0.248364] sw_console_setup()1233 - console setup baud 115200 parity n bits 8, flow n
[ 0.360189] console [ttyS0] enabled
[ 0.530429] uart1: ttyS1 at MMIO 0x1c28400 (irq = 33) is a SUNXI
[ 0.530691] uart2: ttyS2 at MMIO 0x1c28800 (irq = 34) is a SUNXI
[ 0.530955] uart3: ttyS3 at MMIO 0x1c28c00 (irq = 35) is a SUNXI
[ 0.531802] [drm] Initialized drm 1.1.0 20060810
[ 0.535869] loop: module loaded
[ 0.659319] sunxi_spi_chan_cfg()1383 - [spi-0] has no spi_regulator.
[ 0.840684] sunxi_spi_chan_cfg()1383 - [spi-1] has no spi_regulator.
[ 0.965661] spi spi0: master is unqueued, this is deprecated
[ 1.150380] tun: Universal TUN/TAP device driver, 1.6
[ 1.150388] tun: (C) 1999-2004 Max Krasnyansky <maxk#qualcomm.com>
[ 1.151363] PPP generic driver version 2.4.2
[ 1.151552] PPP BSD Compression module registered
[ 1.151560] PPP Deflate Compression module registered
[ 1.152440] PPP MPPE Compression module registered
[ 1.152451] NET: Registered protocol family 24
[ 1.152493] PPTP driver version 0.8.5
[ 1.152743] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.172877] sunxi-ehci sunxi-ehci.1: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.172912] sunxi-ehci sunxi-ehci.1: new USB bus registered, assigned bus number 1
[ 1.296094] sunxi-ehci sunxi-ehci.1: irq 104, io mem 0xf1c1a000
[ 1.480038] sunxi-ehci sunxi-ehci.1: USB 0.0 started, EHCI 1.00
[ 1.632720] hub 1-0:1.0: USB hub found
[ 1.685669] hub 1-0:1.0: 1 port detected
[ 1.714667] sunxi-ehci sunxi-ehci.2: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.727974] sunxi-ehci sunxi-ehci.2: new USB bus registered, assigned bus number 2
[ 1.741191] sunxi-ehci sunxi-ehci.2: irq 106, io mem 0xf1c1b000
[ 1.770036] sunxi-ehci sunxi-ehci.2: USB 0.0 started, EHCI 1.00
[ 1.781512] hub 2-0:1.0: USB hub found
[ 1.789904] hub 2-0:1.0: 1 port detected
[ 1.818952] sunxi-ehci sunxi-ehci.3: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.832323] sunxi-ehci sunxi-ehci.3: new USB bus registered, assigned bus number 3
[ 1.845590] sunxi-ehci sunxi-ehci.3: irq 108, io mem 0xf1c1c000
[ 1.870043] sunxi-ehci sunxi-ehci.3: USB 0.0 started, EHCI 1.00
[ 1.881664] hub 3-0:1.0: USB hub found
[ 1.890302] hub 3-0:1.0: 1 port detected
[ 1.919344] sunxi-ehci sunxi-ehci.4: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.932740] sunxi-ehci sunxi-ehci.4: new USB bus registered, assigned bus number 4
[ 1.945967] sunxi-ehci sunxi-ehci.4: irq 110, io mem 0xf1c1d000
[ 1.970042] sunxi-ehci sunxi-ehci.4: USB 0.0 started, EHCI 1.00
[ 1.981680] hub 4-0:1.0: USB hub found
[ 1.990489] hub 4-0:1.0: 1 port detected
[ 1.999718] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 2.031228] sunxi-ohci sunxi-ohci.1: SW USB2.0 'Open' Host Controller (OHCI) Driver
[ 2.044385] sunxi-ohci sunxi-ohci.1: new USB bus registered, assigned bus number 5
[ 2.057397] sunxi-ohci sunxi-ohci.1: irq 105, io mem 0xf1c1a400
[ 2.124576] hub 5-0:1.0: USB hub found
[ 2.133311] hub 5-0:1.0: 1 port detected
[ 2.162621] sunxi-ohci sunxi-ohci.2: SW USB2.0 'Open' Host Controller (OHCI) Driver
[ 2.175860] sunxi-ohci sunxi-ohci.2: new USB bus registered, assigned bus number 6
[ 2.189035] sunxi-ohci sunxi-ohci.2: irq 107, io mem 0xf1c1b400
[ 2.264561] hub 6-0:1.0: USB hub found
[ 2.273445] hub 6-0:1.0: 1 port detected
[ 2.302798] sunxi-ohci sunxi-ohci.3: SW USB2.0 'Open' Host Controller (OHCI) Driver
[ 2.316105] sunxi-ohci sunxi-ohci.3: new USB bus registered, assigned bus number 7
[ 2.329298] sunxi-ohci sunxi-ohci.3: irq 109, io mem 0xf1c1c400
[ 2.404584] hub 7-0:1.0: USB hub found
[ 2.413449] hub 7-0:1.0: 1 port detected
[ 2.442827] sunxi-ohci sunxi-ohci.4: SW USB2.0 'Open' Host Controller (OHCI) Driver
[ 2.456174] sunxi-ohci sunxi-ohci.4: new USB bus registered, assigned bus number 8
[ 2.469459] sunxi-ohci sunxi-ohci.4: irq 111, io mem 0xf1c1d400
[ 2.544586] hub 8-0:1.0: USB hub found
[ 2.553518] hub 8-0:1.0: 1 port detected
[ 2.562915] Initializing USB Mass Storage driver...
[ 2.573211] usbcore: registered new interface driver usb-storage
[ 2.584572] USB Mass Storage support registered.
[ 2.594457] usbcore: registered new interface driver ums-alauda
[ 2.605819] usbcore: registered new interface driver ums-cypress
[ 2.617280] usbcore: registered new interface driver ums-datafab
[ 2.628608] usbcore: registered new interface driver ums_eneub6250
[ 2.640060] usbcore: registered new interface driver ums-freecom
[ 2.651238] usbcore: registered new interface driver ums-isd200
[ 2.662342] usbcore: registered new interface driver ums-jumpshot
[ 2.673509] usbcore: registered new interface driver ums-karma
[ 2.684357] usbcore: registered new interface driver ums-onetouch
[ 2.695402] usbcore: registered new interface driver ums-realtek
[ 2.706252] usbcore: registered new interface driver ums-sddr09
[ 2.716948] usbcore: registered new interface driver ums-sddr55
[ 2.727582] usbcore: registered new interface driver ums-usbat
[ 2.738113] usbcore: registered new interface driver usbserial
[ 2.748503] usbserial: USB Serial Driver core
[ 2.757202] usbcore: registered new interface driver option
[ 2.767257] USB Serial support registered for GSM modem (1-port)
[ 2.778459] file system registered
[ 2.787739] android_usb gadget: Mass Storage Function, version: 2009/09/11
[ 2.799369] android_usb gadget: Number of LUNs=3
[ 2.808438] lun0: LUN: removable file: (no medium)
[ 2.817768] lun1: LUN: removable file: (no medium)
[ 2.826963] lun2: LUN: removable file: (no medium)
[ 2.836406] android_usb gadget: android_usb ready
[ 2.846187] mousedev: PS/2 mouse device common for all mice
[ 2.857107] ls_fetch_sysconfig_para: ls_unused.
[ 2.866277] [RTC] WARNING: Rtc time will be wrong!!
[ 2.875373] [RTC] WARNING: use *internal OSC* as clock source
[ 2.885690] sunxi-rtc sunxi-rtc: rtc core: registered sunxi-rtc as rtc0
[ 2.896812] i2c /dev entries driver
[ 2.904919] IR RC5(x) protocol handler initialized
[ 2.914167] tscdev_init: tsc driver is disabled
[ 2.923307] Driver for 1-wire Dallas network protocol.
[ 2.932808] sunxi_wdt_init_module: sunxi WatchDog Timer Driver v1.0
[ 2.943662] sunxi_wdt_probe: devm_ioremap return wdt_reg 0xf1c20ca0, res->start 0x01c20ca0, res->end 0x01c20cbf
[ 2.955143] sunxi_wdt_probe: initialized (g_timeout=16s, g_nowayout=0)
[ 2.970118] wdt_enable, write reg 0xf1c20cb8 val 0x00000000
[ 2.980326] timeout_to_interv, line 167
[ 2.988404] interv_to_timeout, line 189
[ 2.996449] wdt_set_tmout, write 0x000000b0 to mode reg 0xf1c20cb8, actual timeout 16 sec
[ 3.009669] device-mapper: uevent: version 1.0.3
[ 3.019024] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: dm-devel#redhat.com
[ 3.032580] Bluetooth: HCI UART driver ver 2.2
[ 3.041598] Bluetooth: HCI H4 protocol initialized
[ 3.050941] Bluetooth: HCI BCSP protocol initialized
[ 3.060436] Bluetooth: HCILL protocol initialized
[ 3.069638] Bluetooth: HCIATH3K protocol initialized
[ 3.079317] Bluetooth: MSM Sleep Mode Driver Ver 1.2
[ 3.088976] Bluetooth: init no bt used in configuration
[ 3.088982]
[ 3.104775] [cpu_freq] ERR:get cpu extremity frequency from sysconfig failed, use max_freq
[ 3.120910] no red_led, ignore it!
[ 3.131197] usbcore: registered new interface driver usbhid
[ 3.141947] usbhid: USB HID core driver
[ 3.152119] script_get_item audio_pa_ctrl not found
[ 3.167806] asoc: sndcodec <-> sunxi-codec mapping ok
[ 3.183410] asoc: sndhdmi <-> sunxi-hdmiaudio.0 mapping ok
[ 3.195521] oprofile: using arm/armv7-ca7
[ 3.205005] u32 classifier
[ 3.212837] Actions configured
[ 3.220990] Netfilter messages via NETLINK v0.30.
[ 3.230635] nf_conntrack version 0.5.0 (3872 buckets, 15488 max)
[ 3.242335] ctnetlink v0.93: registering with nfnetlink.
[ 3.252669] NF_TPROXY: Transparent proxy support initialized, version 4.1.0
[ 3.264844] NF_TPROXY: Copyright (c) 2006-2007 BalaBit IT Ltd.
[ 3.275528] mmc0: new SDHC card at address 0001
[ 3.275741] xt_time: kernel timezone is -0000
[ 3.275908] IPv4 over IPv4 tunneling driver
[ 3.276373] gre: GRE over IPv4 demultiplexor driver
[ 3.276382] ip_gre: GRE over IPv4 tunneling driver
[ 3.277016] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.277210] arp_tables: (C) 2002 David S. Miller
[ 3.277287] TCP: cubic registered
[ 3.277294] Initializing XFRM netlink socket
[ 3.357187] NET: Registered protocol family 10
[ 3.366318] mmcblk0: mmc0:0001 SD 3.72 GiB
[ 3.375839] Mobile IPv6
[ 3.382646] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 3.382684] mmcblk0: p1 p2
[ 3.383449] *******************sd init ok*******************
[ 3.409962] IPv6 over IPv4 tunneling driver
[ 3.419556] NET: Registered protocol family 17
[ 3.428376] NET: Registered protocol family 15
[ 3.437283] Bluetooth: RFCOMM TTY layer initialized
[ 3.446478] Bluetooth: RFCOMM socket layer initialized
[ 3.455844] Bluetooth: RFCOMM ver 1.11
[ 3.463574] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.473004] Bluetooth: BNEP filters: protocol multicast
[ 3.482329] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 3.492549] L2TP core driver, V2.0
[ 3.499872] PPPoL2TP kernel driver, V2.0
[ 3.507783] L2TP IP encapsulation support (L2TPv3)
[ 3.516771] L2TP netlink interface
[ 3.524201] L2TP ethernet pseudowire support (L2TPv3)
[ 3.533588] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[ 3.545743] ThumbEE CPU extension supported.
[ 3.554047] Registering SWP/SWPB emulation handler
[ 3.563802] cmdline,disp=
[ 3.601355] sunxi-rtc sunxi-rtc: setting system clock to 1970-01-01 00:00:08 UTC (8)
[ 3.613650] ths_fetch_sysconfig_para: type err device_used = 1.
[ 3.625339] CPU Budget:Register notifier
[ 3.633378] CPU Budget:register Success
[ 3.641218] sunxi-budget-cooling sunxi-budget-cooling: Cooling device registered: thermal-budget-0
[ 3.657864] ALSA device list:
[ 3.664997] #0: audiocodec
[ 3.671931] #1: sndhdmi
[ 3.701347] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.714240] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 3.725065] Freeing init memory: 320K
[ 4.210107] [DISP] disp_device_attached_and_enable,line:159:attched ok, mgr0<-->device0, type=4, mode=5
I have compared with the Dmesg of the image they provided and it is same (no extra errors). The only difference is that it doesn't stop at the last message and above and continues with more message like this
[ 3.740859] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 3.751773] Freeing init memory: 320K
[ 3.994008] systemd[1]: Failed to insert module 'kdbus': Function not implemented
[ 4.480527] systemd[1]: systemd 225 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD -IDN)
[ 4.522559] systemd[1]: Detected architecture arm.
[ 4.556652] systemd[1]: Set hostname to <FriendlyARM>.
[ 4.813095] systemd[1]: display-manager.service: Cannot add dependency job, ignoring: Unit display-manager.service failed to load: No such file or directory.
[ 4.835364] systemd[1]: Reached target Swap.
[ 4.849758] systemd[1]: Reached target Encrypted Volumes.
[ 4.865289] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[ 4.883786] systemd[1]: Reached target Remote File Systems (Pre).
[ 4.900430] systemd[1]: Created slice Root Slice.
[ 4.915916] systemd[1]: Created slice System Slice.
[ 4.931753] systemd[1]: Created slice User and Session Slice.
[ 4.948846] systemd[1]: Created slice system-getty.slice.
[ 4.965667] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 4.983471] systemd[1]: Listening on udev Control Socket.
[ 5.000354] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 5.019741] systemd[1]: Reached target Paths.
[ 5.035599] systemd[1]: Listening on Journal Socket.
[ 5.200617] systemd[1]: Mounting Debug File System...
[ 5.290705] systemd[1]: Starting Remount Root and Kernel File Systems...
[ 5.390688] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[ 5.415235] systemd[1]: Listening on Journal Audit Socket.
[ 5.434841] systemd[1]: Reached target Slices.
[ 5.453278] systemd[1]: Listening on udev Kernel Socket.
[ 5.580939] systemd[1]: Starting udev Coldplug all Devices...
[ 5.608874] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 5.770898] systemd[1]: Starting Load Kernel Modules...
[ 5.789989] systemd[1]: Listening on Journal Socket (/dev/log).
[ 5.890778] systemd[1]: Starting Journal Service...
[ 6.027527] systemd[1]: Mounted Debug File System.
[ 6.160197] systemd[1]: Started Remount Root and Kernel File Systems.
[ 6.330140] systemd[1]: Started Create list of required static device nodes for the current kernel.
[ 6.750244] systemd[1]: Started Load Kernel Modules.
[ 6.920156] systemd[1]: Started udev Coldplug all Devices.
[ 6.942933] systemd[1]: Started Journal Service.
So I guess the issue is with the rootfs not being detected and mounted correctly. Please guide me on this.
I'm pretty sure the problem is that the linux doesn't activate a console on uart.
Take a look at kernel log:
[ 0.000000] Kernel command line: console=ttyS0,115200 console=tty0 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait init=/sbin/init
As noted in http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/configure-kernel.html:
When multiple consoles are listed output is sent to all consoles and input is taken from the last listed console. The last console is the one Linux uses as the /dev/console device.
So try making console=ttyS0,115200 being the last (or the only) console option by tuning bootargs u-boot environment variable.
To check this suggestion, just "Hit any key to stop autoboot", then use printenv to inspect default bootargs content, run setenv bootargs ... ... ... and finally, run bootd. However, be sure to inspect bootcmd and what does it call, because one of those things may invoke setenv bootargs during bootcmd execution and overwrite your manual option.
P.S. init=/sbin/init may be omitted.
First post to SO, so I'll try to make the question right.
I'm making a simple Linux kernel module with the goal of echoing data back to the TTY shell from where the kernel module was loaded. The problem I having is the kernel "Ooops"-ing with the following message (caught with " watch 'dmesg | tail -50' "). The kernel module's name is Seraphim:
[ 184.222748] SELinux: initialized (dev proc, type proc), uses genfs_contexts
[ 1877.456607] seraphim: module verification failed: signature and/or required key missing - tainting kernel
[ 1877.457321] ------------------
[ 1877.457324] Seraphim started.
[ 1877.457348] BUG: unable to handle kernel NULL pointer dereference at 0000000000000218
[ 1877.457411] IP: [<ffffffffa0012030>] seraphim_entry+0x30/0x1000 [seraphim]
[ 1877.457462] PGD 115a2e067 PUD 10aca8067 PMD 0
[ 1877.457498] Oops: 0000 [#1] SMP
[ 1877.457524] Modules linked in: seraphim(OF+) rfcomm bnep nf_conntrack_netbios_ns nf_conn track_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llce btable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_ma etc.
The code used for writing data to the TTY terminal follows:
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/tty.h>
static void printString(char *string) {
struct tty_struct *tty;
tty = current->signal->tty;
if(tty != NULL) {
(tty->driver->ops->write) (tty, string, strlen(string));
}
else
printk("tty equals to zero");
}
What am I doing wrong?
I was following the tutorial at http://www.tldp.org/LDP/lkmpg/2.6/lkmpg.pdf but it was out of date (the kernel I am using is 3.11.10-200 on Fedora 19), so I had to rummage through 3.11.10-200 source files to find the adequate structures.
use tty = get_current_tty(); instead of tty = current->signal->tty;
that's it
you need to lock the tty before accessing it and get_current_tty does it internally
NOTE: get_current_tty is under EXPORT_SYMBOL_GPL, hence your module or code