how to enable BB-mBC3-ETH-WIZ-CLICK overlay with new kernel？

[lichaowuwei]

hi all，
first i use BB-mBC3-ETH-WIZ-CLICK overlay with uboot, all works well, the image is download directly with kernel 4.14.
i install the xenomai kernel from https://rcn-ee.com/repos/ , I have tried two kernel 4.9 and 4.14 with xenomai.
if i don't add BB-mBC3-ETH-WIZ-CLICK overlay in uEnv.txt, the system boot and start ok, but if i add BB-mBC3-ETH-WIZ-CLICK overlay in uboot, then i can't enter the debian system.
so, what's the matter? this overlay can't work with xenomai? or something wrong else?
hope anybody can help me , thanks very much!

[lichaowuwei]

latter , i installed 4.9.147 kernel and with rt kernel from https://rcn-ee.com/repos/, all works fine.
only xenomai kernel can't work, any one knows why?
appreciate your reply, thanks very much

[lichaowuwei]

if i don't connect the INT pin（interrupt）， i can enter the debian system...
so， it looks like that the xenomai can't accept the interrupt signal？

[lichaowuwei]

the irq function is not request， should be ok for xenomai...
whatever, it took me too much time, just let it be