Clarification Of -jX Argument For buildworld/kernel

Herbert J. Skuhra herbert at
Thu Jul 22 08:17:29 UTC 2021

On Wed, 21 Jul 2021 16:17:11 +0200, Tim Daneliuk wrote:
> Is it still advisable to explicitly declare the numer of make processes
> when doing buildworld/buildkernel

Sure, why not!?

> or are the defaults best left alone?

If something breaks try the defaults.

> I am trying to suss through a 13-STABLE build problem to see if using -j4
> on a 4 core machine is causing a race condition of some sort...

Even when you build world/kernel with -j4 there should be an error
message. What is it? If you can't find it build without -j4. If it
still fails post the error here or on the stable mailing list.

I build world and kernel (stable/13 and main) for amd64, armv7 and
arm64 with -j4 and have no issues.


More information about the freebsd-questions mailing list