[Bug 242835] concurrency issue when building kernel with 'make -j8': make[5]: make[5]: don't know how to make opt_global.h. Stop

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From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 27 Oct 2023 09:12:21 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242835

--- Comment #2 from Martin Birgmeier <d8zNeCFG@aon.at> ---
The saga goes on... first, I realized that I reported this twice, so I closed
the second bug #249957 as a duplicate.

One crucial point seems to be that both the source and object directories are
on NFS. When switching the object directory to a local one, the issue does not
occur.

Still with an NFS-mounted object dir the issue also does not seem to occur when
rebuilding an already built kernel (even if the cleaning step is run, as it
normally is).

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