Disable faulty core early in boot

[lonix]

Good morning gentlemen,

 

I have just discovered that one of the cores on my RockPi4B is faulty and often causes segfaults and crashes,

I can disable the suspect core by issuing the following command

 

$ sudo echo 0 | sudo tee /sys/devices/system/cpu/cpu2/online

 

However, this is fine if the machine has booted, but i want to disable the faulty core as early on in the boot process as possible.

 

Is it possible to disable the core in the uboot environment, or could someone offer me some advice as to the best time to disable the core?

 

Thanks,

 

Leon.

[a16bitsysop]

Good morning gentlemen,
 
I have just discovered that one of the cores on my RockPi4B is faulty and often causes segfaults and crashes,
I can disable the suspect core by issuing the following command
 
$ sudo echo 0 | sudo tee /sys/devices/system/cpu/cpu2/online
 
However, this is fine if the machine has booted, but i want to disable the faulty core as early on in the boot process as possible.
 
Is it possible to disable the core in the uboot environment, or could someone offer me some advice as to the best time to disable the core?
 
Thanks,
 
Leon.

Have you tried reducing the max speed with cpufrequtils, I think you can do it inside armbian config as well. Might be more stable at a lower speed

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