Keep repeating starting kernel....

[wangtsungli]

Hi All,

I'm using imx6 Dual Lite with 1G and take Android6.0 as my OS system.

I'm having an issue with repeating starting kernel.

After I burned my image in, I repower the machine and the debug log shows as below.

U-Boot 2015.04 (Feb 15 2019 - 13:37:19)

CPU: Freescale i.MX6DL rev1.3 at 792 MHz
CPU: Temperature 40 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 1 GiB
forenex victor board_init!
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment

No panel detected: default to AUO_G185XW01
forenex victor enable lvds!
forenex victor backlight = 0
forenex victor backlight again = 0
forenex victor LVDS pwm = 0
Display: AUO_G185XW01 (1366x768)
In: serial
Out: serial
Err: serial
forenex victor board_late_init!
forenex victor backlight = 0
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
flash target is MMC:2
Net: FEC [PRIME]
Error: FEC address not set.

Normal Boot
Hit any key to stop autoboot: 0
boota mmc2
kernel @ 14008000 (8593408)
ramdisk @ 15000000 (1028493)
fdt @ 14f00000 (39172)
## Booting Android Image at 0x12000000 ...
Kernel load addr 0x14008000 size 8392 KiB
Kernel command line: console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled
## Flattened Device Tree blob at 14f00000
Booting using the fdt blob at 0x14f00000
Loading Kernel Image ... OK
Using Device Tree in place at 14f00000, end 14f0c903

Starting kernel ...

U-Boot 2015.04 (Feb 15 2019 - 13:37:19)

CPU: Freescale i.MX6DL rev1.3 at 792 MHz
CPU: Temperature 43 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 1 GiB
forenex victor board_init!
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment

No panel detected: default to AUO_G185XW01
forenex victor enable lvds!
forenex victor backlight = 0
forenex victor backlight again = 0
forenex victor LVDS pwm = 0
Display: AUO_G185XW01 (1366x768)
In: serial
Out: serial
Err: serial
forenex victor board_late_init!
forenex victor backlight = 0
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
flash target is MMC:2
Net: FEC [PRIME]
Error: FEC address not set.

Normal Boot
Hit any key to stop autoboot: 0
boota mmc2
kernel @ 14008000 (8593408)
ramdisk @ 15000000 (1028493)
fdt @ 14f00000 (39172)
## Booting Android Image at 0x12000000 ...
Kernel load addr 0x14008000 size 8392 KiB
Kernel command line: console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled
## Flattened Device Tree blob at 14f00000
Booting using the fdt blob at 0x14f00000
Loading Kernel Image ... OK
Using Device Tree in place at 14f00000, end 14f0c903

Starting kernel ...

U-Boot 2015.04 (Feb 15 2019 - 13:37:19)

CPU: Freescale i.MX6DL rev1.3 at 792 MHz
CPU: Temperature 43 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 1 GiB
forenex victor board_init!
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment

No panel detected: default to AUO_G185XW01
forenex victor enable lvds!
forenex victor backlight = 0
forenex victor backlight again = 0
forenex victor LVDS pwm = 0
Display: AUO_G185XW01 (1366x768)
In: serial
Out: serial
Err: serial
forenex victor board_late_init!
forenex victor backlight = 0
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
flash target is MMC:2
Net: FEC [PRIME]
Error: FEC address not set.

Normal Boot
Hit any key to stop autoboot: 0
boota mmc2
kernel @ 14008000 (8593408)
ramdisk @ 15000000 (1028493)
fdt @ 14f00000 (39172)
## Booting Android Image at 0x12000000 ...
Kernel load addr 0x14008000 size 8392 KiB
Kernel command line: console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled
## Flattened Device Tree blob at 14f00000
Booting using the fdt blob at 0x14f00000
Loading Kernel Image ... OK
Using Device Tree in place at 14f00000, end 14f0c903

Starting kernel ...

It keeps repeating Starting kernel... over and over again.

How can I solve this problem????

[shivanipatel]

Hi, tsung li wang‌

Please try these prebuilt images of i.MX6DL/6Q/6QP in your board. As I am able to boot the board using these images.

Regards,

Shivani Patel

[wangtsungli · Accepted solution]

shivanipatel‌ Thanks for your reply.

I have found the problem.

It's because of DTS settings.

[b36401]

Possibly the kernel fails because of some memory failure.
Please try to perform memory test:
https://community.nxp.com/docs/DOC-105652

Also please try to remove as many devices from the configuration as possible.
There is a chance that some driver is wrong.

Have a great day,
Victor

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