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UPDATING: remove outdated caution against make -j

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Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22836
This commit is contained in:
Ed Maste 2019-12-16 19:08:49 +00:00
parent 68e1c49a96
commit 16ae835140
1 changed files with 3 additions and 8 deletions
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UPDATING
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@ -1934,19 +1934,14 @@ COMMON ITEMS:
General Notes
-------------
Avoid using make -j when upgrading. While generally safe, there are
sometimes problems using -j to upgrade. If your upgrade fails with
-j, please try again without -j. 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).
Sometimes, obscure build problems are the result of environment
poisoning. This can happen because the make utility reads its
environment when searching for values for global variables. To run
your build attempts in an "environmental clean room", prefix all make
commands with 'env -i '. See the env(1) manual page for more details.
Occasionally a build failure will occur with "make -j" due to a race
condition. If this happens try building again without -j, and please
report a bug if it happens consistently.
When upgrading from one major version to another it is generally best to
upgrade to the latest code in the currently installed branch first, then