[Bug 202995] building lang/go14 causes bus error and coredump

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202995

            Bug ID: 202995
           Summary: building lang/go14 causes bus error and coredump
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: jlaffaye at FreeBSD.org
          Reporter: vivek at khera.org
          Assignee: jlaffaye at FreeBSD.org
             Flags: maintainer-feedback?(jlaffaye at FreeBSD.org)

I am unable to build go 1.4 in order to build go 1.5. This seems to really
affect FreeBSD 10.2. Even the old binaries built with 10.1 kernel of go 1.4
causes a bus error running on FreeBSD 10.2 kernel.

I used the same kernel config file with both 10.1 and 10.2. Curiously, on a
10.2 GENERIC kernel it works fine. Is there some special option or device it
needs?

Ports tree updated with portsnap today (9-SEP-2015) but this has been going on
since 10.2 was released.


[root at redfish]# make DISABLE_VULNERABILITIES=yes
===>  Building for go14-1.4.2
cd /var/tmp/usr/ports/lang/go14/work/go/src &&  CC=cc 
GOROOT=/var/tmp/usr/ports/lang/go14/work/go GOROOT_FINAL=/usr/local/go14 
GOBIN= GOARCH=amd64 GOOS=freebsd  /bin/sh make.bash
# Building C bootstrap tool.
cmd/dist
-t: not found
gcc: not found
-t: not found

# Building compilers and Go bootstrap tool for host, freebsd/amd64.
lib9
libbio
liblink
cmd/cc
cmd/gc
cmd/6l
cmd/6a
cmd/6c
cmd/6g
runtime
errors
sync/atomic
sync
io
unicode
unicode/utf8
unicode/utf16
bytes
math
strings
strconv
bufio
sort
container/heap
encoding/base64
syscall
time
os
reflect
fmt
encoding
encoding/json
flag
path/filepath
path
io/ioutil
log
regexp/syntax
regexp
go/token
go/scanner
go/ast
go/parser
os/exec
os/signal
net/url
text/template/parse
text/template
go/doc
go/build
cmd/go
Bus error (core dumped)
*** Error code 138

Stop.
make: stopped in /usr/ports/lang/go14
23.190user 2.070sys 219.0%, 2ib 415ob 27522tx 416da 27938to 0swp 0:11.53
[root at redfish]# uname -a
FreeBSD redfish.kcilink.com 10.2-RELEASE-p1 FreeBSD 10.2-RELEASE-p1 #2 r286969:
Fri Aug 21 11:01:20 EDT 2015    
vivek at lorax.kcilink.com:/u/lorax1/usr10/obj/u/lorax1/usr10/src/sys/KCI64  amd64

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