Espressobin one cpu offline

[jblankfeld]

Hello,
I installed archlinux ARM on Espressobin board and for some reason one of the CPU is marked offline.
$this->bbcode_second_pass_code('', '
[root@alarm ~]# lscpu
Architecture: aarch64
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0
Off-line CPU(s) list: 1
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 1
Vendor ID: ARM
Model: 4
Model name: Cortex-A53
Stepping: r0p4
CPU max MHz: 1000.0000
CPU min MHz: 200.0000
BogoMIPS: 25.00
Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
')
$this->bbcode_second_pass_code('', '
[root@alarm ~]# cat /sys/devices/system/cpu/cpu1/online
0
')

I tried to force it with $this->bbcode_second_pass_code('', 'echo 1 > /sys/devices/system/cpu/cpu1/online') but it failed with the following kernel logs:

$this->bbcode_second_pass_code('', '
[ 129.190722] psci: failed to boot CPU1 (-22)
[ 129.192177] CPU1: failed to boot: -22
[ 129.195938] CPU1: failed in unknown state : 0x0
')

Any tips how to debug this kind of issue ?

Thanks for the kind help.

[jblankfeld]

Just found the reason why I used the board sata power for 2 disks and it's probably too much power to drain for the board.
Removing the disks brought the 2 CPUs back. Definitely going to use external power supply for the disks now.