Upper limit on make -j ?

Kris Kennaway kris at FreeBSD.org
Tue Nov 27 15:11:54 PST 2007

Frank Shute wrote:
> On Tue, Nov 27, 2007 at 08:02:44PM +0100, Kris Kennaway wrote:
>> Andy Greenwood wrote:
>>> Aryeh Friedman wrote:
>>>> Before I file a PR I just want to know if it is worth it to file a PR 
>>>> for:
>>>> make -j1000 buildworld buildkernel installkernel
>>>> seg faulting
>>> I thought that the kernel builds couldn't be built using parallel jobs, 
>>> that it might break something. Is that not true?
>> Not true for many years.
>>From /usr/src/UPDATING:
>         "Avoid using make -j when upgrading.  From time to time in the
>         past there have been problems using -j with buildworld and/or
>         installworld.  This is especially true when upgrading between
>         "distant" versions (eg one that cross a major release boundary
>         or several minor releases, or when several months have passed
>         on the -current branch)"
> Should this be changed then?



More information about the freebsd-questions mailing list