Is there a way to set kptr_restrict to 0?

Question

I am currently having trouble running linux perf, mostly because /proc/sys/kernel/kptr_restrict is currently set to 1.

However, if I try to /proc/sys/

Answer 1

In your example, echo is running as root, but your shell is running as you.

So please try this command:

sudo sh -c " echo 0 > /proc/sys/kernel/kptr_restrict"