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Date: Tue, 3 Apr 2018 09:26:00 -0700
From: Steve Kargl <sgk@troutmask.apl.washington.edu>
To: freebsd-current@freebsd.org
Subject: Can't load linux64.ko module
Message-ID: <20180403162600.GA23894@troutmask.apl.washington.edu>
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Booting a kernel from
%  uname -a
FreeBSD sleepdirt 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r331370: \
  Thu Mar 22 13:41:30 AKDT 2018 \
  kargl@sleepdirt:/usr/obj/usr/src/amd64.amd64/sys/SLEEPDIRT  amd64

gives the following from dmesg

% dmesg | grep linux
link_elf_obj: symbol elf64_linux_vdso_fixup undefined
linker_load_file: /boot/kernel/linux64.ko - unsupported file type

Mine kernel config file contains

options         COMPAT_LINUX32
options         COMPAT_LINUXKPI
options         LINPROCFS

Is something else missing?  A glimpse at /sys/conf/NOTES and
/sys/amd64/conf/GENERIC do not reveal anything obvious.

-- 
Steve