[Bug 219399] System panics after several hours of 14-threads-compilation orgies using poudriere on AMD Ryzen...

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219399

--- Comment #90 from Don Lewis <truckman at FreeBSD.org> ---
With my patch to relocate the shared page, I was finally able to get a
successful poudriere run.  It built 1596 ports in about 8 1/2 hours with no
errors.

I'm still not able to build lang/ghc, which I think is due to another problem
of some sort.  The SIGBUS error generated by the bootstrap compiler seems to be
totally repeatable.

I think my patch did introduce a new problem.  Whenever a process core dumps,
this new message gets logged:
  Failed to fully fault in a core file segment at VA 0x7fffffffe000 with size
0x2000 to be written at offset 0x7fef000 for process ghc

I'll try reverting the shared page size part of the change.

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