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Subject: [Bug 221029] AMD Ryzen: strange compilation failures using poudriere
 or plain buildkernel/buildworld
Date: Tue, 29 Aug 2017 22:41:05 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221029

--- Comment #98 from Mark Millard <markmi@dsl-only.net> ---
I tried an experiment of an amd64 -> armv6 cross build
of lang/gcc7 via poudriere and it appears that I got
a SIGSEGV in:

/wrkdirs/usr/ports/lang/gcc7/work/.build/./gcc/xgcc

that may be one of the Ryzen ones.

(It will be a while before a retry might stop at
the same place if it does. I'll report if the
stopping point turns out to be repeatable.)

The context here is FreeBSD 11.1-STABLE -r322591
running as a Hyper-V guest on a machine booted
via Windows 10 Pro. Default work stealing for
hardware threads and load redistribution across
threads are still in place in the kernel
settings: no adjustments.

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