Re: ld on startup - wish to disable

library_aslr=NO is already set in  /etc/rc.conf.local, because I ran:

# rcctl disable library_aslr

Just tried with moving /var/db/kernel.SHA256:

# mv /var/db/kernel.SHA256 /var/db/no_kernel.SHA256

At reboot, reordering libraries is skipped (due to library_aslr=NO) and reorder_kernel: failed ( /var/db/kernel.SHA256 moved )

Thanks a lot!

Il giorno mer 18 set 2024 alle ore 19:04 James Cook <falsifian@falsifian.org> ha scritto:

On Tue, Sep 10, 2024 at 02:39:55PM +0200, Luca Di Gregorio wrote:
>Hi,
>
>I'm running very little OpenBSD VMs for simple services and testing
>environments.
>
>I really don't need security on these VMs, I already disabled library_aslr
>(rcctl disable library_aslr) to avoid reordering libraries at boot, but, at
>startup, I still see ld and ctfconv running and consuming a lot of CPU.
>
>As the VMs are little, ld and ctfconv takes a lot of time to finish.
>
>Is there a way to disable them as well?
>
>Luca

I think you can set library_aslr=NO in /etc/rc.conf.local. See
rc.conf(8).

Mizsei's answer is about kernel relinking, which I think happens
in the background after every boot. It might slow things down too.

--
James