Smp fail information[solved]

[ 0.000992] smp: Bringing up secondary CPUs …
[ 1.057750] CPU1: failed to come online

i rebuild the os(linux 5.4.2), using opensbi directly, without uboot.
single core works perfectly, but smp failed…
no idea now!
can anyone give any help?

BTW:

cat possible

0-3

cat offline

1-3

another question:
can’t opensbi boot smp directly ?

thanks

I’m having the same issue with 5.6-rc6. Have you applied any patches?