[OE-core] zimage Initramfs booting stuck at Start Kernel

[JH]

Hi,

I finally built the
zImage->zImage--4.19.75+git0+d573e8a79f-r0-20191026074920.bin and
zImage-initramfs ->
zImage-initramfs--4.19.75+git0+d573e8a79f-r0-20191026074920.bin based
on oe-core kernel.bbclass.

The zImage could be loaded by u-boot on RAM booting but failed at
mount rootfs which was fine as it did not bundle the rootfs. The
zImage-initramfs bundled to rootfs, but it could not be started and
stuck at u-boot Starting kernel, there was no trace of errors.

Hit any key to stop autoboot:  0
=> bootz ${loadaddr} - ${fdt_addr}
Kernel image @ 0x80800000 [ 0x000000 - 0x219df80 ]
## Flattened Device Tree blob at 83000000
   Booting using the fdt blob at 0x83000000
   Using Device Tree in place at 83000000, end 83008831
ft_system_setup for mx6

Starting kernel ...

Because zImage could be started, zImage-initramfs could not, that
implies there were no issues in the u-boot, is must be something wrong
with the zImage-initramfs. Seems debug is harder, are there anyway to
extract information from zImage-initramfs to figure out what is wrong?

Thank you.

Kind regards,

- jh