reflect: build failure at ec4ec27f4756 tip

[Dan Kortschak]

The build dashboard shows this build as OK, so I thought it might be
worth posting this.

$ hg identify
ec4ec27f4756 tip

$ uname -rvpo
2.6.32-358.0.1.el6.x86_64 #1 SMP Wed Feb 20 11:05:23 EST 2013 x86_64 GNU/Linux

$ ./all.bash
# Building C bootstrap tool.
cmd/dist

# Building compilers and Go bootstrap tool for host, linux/amd64.
lib9
libbio
libmach
liblink
misc/pprof
cmd/addr2line
cmd/objdump
cmd/prof
cmd/cc
cmd/gc
cmd/6l
cmd/6a
cmd/6c
cmd/6g
pkg/runtime
pkg/errors
pkg/sync/atomic
pkg/sync
pkg/io
pkg/unicode
pkg/unicode/utf8
pkg/unicode/utf16
pkg/bytes
pkg/math
pkg/strings
pkg/strconv
pkg/bufio
pkg/sort
pkg/container/heap
pkg/encoding/base64
pkg/syscall
pkg/time
pkg/os
pkg/reflect
pkg/fmt
pkg/encoding
pkg/encoding/json
pkg/flag
pkg/path/filepath
pkg/path
pkg/io/ioutil
pkg/log
pkg/regexp/syntax
pkg/regexp
pkg/go/token
pkg/go/scanner
pkg/go/ast
pkg/go/parser
pkg/os/exec
pkg/os/signal
pkg/net/url
pkg/text/template/parse
pkg/text/template
pkg/go/doc
pkg/go/build
cmd/go

# Building packages and commands for linux/amd64.
runtime
errors
sync/atomic
unicode
unicode/utf8
math
sort
encoding
unicode/utf16
crypto/subtle
container/list
container/ring
sync
image/color
container/heap
runtime/race
io
syscall
image/color/palette
hash
crypto/cipher
hash/crc32
crypto/hmac
hash/adler32
hash/crc64
hash/fnv
bytes
strings
text/tabwriter
bufio
path
html
time
compress/bzip2
strconv
math/rand
math/cmplx
os
crypto
reflect
encoding/base64
regexp/syntax
net/url
crypto/aes
crypto/rc4
encoding/ascii85
encoding/base32
image
crypto/md5
crypto/sha1
crypto/sha256
crypto/sha512
image/draw
encoding/pem
image/jpeg
path/filepath
os/exec
os/signal
regexp
io/ioutil
encoding/binary
fmt
debug/dwarf
crypto/des
index/suffixarray
debug/elf
debug/macho
debug/pe
flag
go/token
encoding/json
encoding/xml
text/template/parse
log
compress/flate
math/big
encoding/hex
mime
runtime/pprof
debug/goobj
archive/tar
compress/lzw
database/sql/driver
debug/gosym
encoding/csv
encoding/gob
runtime/debug
text/scanner
cmd/pack
testing/iotest
go/scanner
image/gif
database/sql
testing/quick
testing
go/ast
cmd/nm
compress/gzip
archive/zip
compress/zlib
text/template
image/png
crypto/elliptic
crypto/rand
crypto/dsa
encoding/asn1
crypto/rsa
crypto/x509/pkix
crypto/ecdsa
html/template
go/parser
go/printer
go/doc
go/build
cmd/cgo
go/format
cmd/gofmt
cmd/fix
cmd/yacc
cmd/link
runtime/cgo
net
os/user
crypto/x509
net/textproto
log/syslog
mime/multipart
net/mail
crypto/tls
net/http
net/smtp
cmd/go
expvar
net/http/cgi
net/http/cookiejar
net/http/httptest
net/http/httputil
net/http/pprof
net/rpc
net/http/fcgi
net/rpc/jsonrpc

# Testing packages.
? cmd/cgo [no test files]
ok cmd/fix 0.073s
ok cmd/go 0.061s
ok cmd/gofmt 0.171s
ok cmd/link 0.046s
? cmd/nm [no test files]
ok cmd/pack 0.038s
? cmd/yacc [no test files]
ok archive/tar 0.243s
ok archive/zip 0.565s
ok bufio 0.189s
ok bytes 0.225s
ok compress/bzip2 0.117s
ok compress/flate 0.755s
ok compress/gzip 0.025s
ok compress/lzw 0.179s
ok compress/zlib 1.533s
ok container/heap 0.151s
ok container/list 0.187s
ok container/ring 0.149s
? crypto [no test files]
ok crypto/aes 0.082s
ok crypto/cipher 0.080s
ok crypto/des 0.083s
ok crypto/dsa 0.069s
ok crypto/ecdsa 0.081s
ok crypto/elliptic 0.067s
ok crypto/hmac 0.072s
ok crypto/md5 0.018s
ok crypto/rand 0.058s
ok crypto/rc4 0.092s
ok crypto/rsa 0.333s
ok crypto/sha1 0.078s
ok crypto/sha256 0.070s
ok crypto/sha512 0.030s
ok crypto/subtle 0.117s
ok crypto/tls 1.507s
ok crypto/x509 1.417s
? crypto/x509/pkix [no test files]
ok database/sql 0.146s
ok database/sql/driver 0.059s
ok debug/dwarf 0.093s
ok debug/elf 0.107s
ok debug/goobj 0.168s
ok debug/gosym 0.606s
ok debug/macho 0.032s
ok debug/pe 0.049s
? encoding [no test files]
ok encoding/ascii85 0.074s
ok encoding/asn1 0.007s
ok encoding/base32 0.179s
ok encoding/base64 0.163s
ok encoding/binary 0.065s
ok encoding/csv 0.037s
ok encoding/gob 0.123s
ok encoding/hex 0.040s
ok encoding/json 0.259s
ok encoding/pem 0.085s
ok encoding/xml 0.047s
ok errors 0.058s
ok expvar 0.279s
ok flag 0.178s
ok fmt 0.076s
ok go/ast 0.043s
ok go/build 0.189s
ok go/doc 0.153s
ok go/format 0.076s
ok go/parser 0.190s
ok go/printer 0.396s
ok go/scanner 0.070s
ok go/token 0.144s
? hash [no test files]
ok hash/adler32 0.146s
ok hash/crc32 0.257s
ok hash/crc64 0.081s
ok hash/fnv 0.162s
ok html 0.030s
ok html/template 0.124s
ok image 0.208s
ok image/color 0.192s
? image/color/palette [no test files]
ok image/draw 0.206s
ok image/gif 0.131s
ok image/jpeg 0.313s
ok image/png 0.085s
ok index/suffixarray 0.040s
ok io 0.127s
ok io/ioutil 0.017s
ok log 0.057s
ok log/syslog 2.075s
ok math 0.034s
ok math/big 0.254s
ok math/cmplx 0.126s
ok math/rand 0.974s
ok mime 0.041s
ok mime/multipart 0.492s
ok net 2.989s
ok net/http 3.803s
ok net/http/cgi 0.366s
ok net/http/cookiejar 0.144s
ok net/http/fcgi 0.063s
ok net/http/httptest 0.050s
ok net/http/httputil 0.171s
? net/http/pprof [no test files]
ok net/mail 0.069s
ok net/rpc 0.124s
ok net/rpc/jsonrpc 0.041s
ok net/smtp 0.056s
ok net/textproto 0.170s
ok net/url 0.030s
ok os 0.708s
ok os/exec 0.598s
ok os/signal 0.472s
ok os/user 0.025s
ok path 0.093s
ok path/filepath 0.046s
SIGSEGV: segmentation violation
PC=0x40e0e4

scanblock(0x7f589b216000, 0x7f589b216030, 0x1, 0x7fff03d56300)
/home/kortschak/go/src/pkg/runtime/mgc0.c:927 +0x8a4
markroot(0xc210026000, 0x11)
/home/kortschak/go/src/pkg/runtime/mgc0.c:1261 +0xad
runtime.parfordo(0xc210026000)
/home/kortschak/go/src/pkg/runtime/parfor.c:105 +0xa3
gc(0x7f589b32e5c0)
/home/kortschak/go/src/pkg/runtime/mgc0.c:2284 +0x267
mgc(0xc210001dc0)
/home/kortschak/go/src/pkg/runtime/mgc0.c:2222 +0x2e
runtime.mcall(0x424eed)
/home/kortschak/go/src/pkg/runtime/asm_amd64.s:178 +0x4b

goroutine 42 [garbage collection]:
runtime.gc(0xc200000000)
/home/kortschak/go/src/pkg/runtime/mgc0.c:2193 +0x1b2 fp=0x7f589b32e5d0
runtime.mallocgc(0x40, 0x5c3181, 0x0)
/home/kortschak/go/src/pkg/runtime/malloc.goc:147 +0x273 fp=0x7f589b32e640
cnew(0x5c3180, 0x2, 0x1)
/home/kortschak/go/src/pkg/runtime/malloc.goc:721 +0xc1 fp=0x7f589b32e660
runtime.cnewarray(0x5c3180, 0x2)
/home/kortschak/go/src/pkg/runtime/malloc.goc:734 +0x3a fp=0x7f589b32e680
makeslice1(0x554080, 0x2, 0x2, 0x7f589b32e6e0)
/home/kortschak/go/src/pkg/runtime/slice.c:57 +0x4d fp=0x7f589b32e698
runtime.makeslice(0x554080, 0x2, 0x2, 0x80, 0x2, ...)
/home/kortschak/go/src/pkg/runtime/slice.c:38 +0x98 fp=0x7f589b32e6c8
reflect.Value.call(0x591360, 0xc210092fb0, 0x0, 0x138, 0x5c5b30, ...)
/home/kortschak/go/src/pkg/reflect/value.go:567 +0x130f fp=0x7f589b32eb00
reflect.Value.Call(0x591360, 0xc210092fb0, 0x0, 0x138, 0xc21009cf00, ...)
/home/kortschak/go/src/pkg/reflect/value.go:411 +0xb3 fp=0x7f589b32eb68
reflect_test.func·012(0x5c4590, 0x3, 0x591360, 0xc210092fb0, 0x0, ...)
/home/kortschak/go/src/pkg/reflect/all_test.go:1803 +0x29e fp=0x7f589b32ed10
reflect_test.func·013(0x5c4590, 0x3, 0x591360, 0xc210092fb0, 0x28)
/home/kortschak/go/src/pkg/reflect/all_test.go:1818 +0xc0 fp=0x7f589b32edb8
reflect_test.TestMethod5(0xc21007e2d0)
/home/kortschak/go/src/pkg/reflect/all_test.go:1852 +0x8ad fp=0x7f589b32ef60
testing.tRunner(0xc21007e2d0, 0x8c5d58)
/home/kortschak/go/src/pkg/testing/testing.go:391 +0x8b fp=0x7f589b32ef90
runtime.goexit()
/home/kortschak/go/src/pkg/runtime/proc.c:1405 fp=0x7f589b32ef98
created by testing.RunTests
/home/kortschak/go/src/pkg/testing/testing.go:471 +0x95b

goroutine 1 [chan receive]:
testing.RunTests(0x6206e8, 0x8c59e0, 0x56, 0x56, 0x1)
/home/kortschak/go/src/pkg/testing/testing.go:472 +0x97e
testing.Main(0x6206e8, 0x8c59e0, 0x56, 0x56, 0x8c0400, ...)
/home/kortschak/go/src/pkg/testing/testing.go:403 +0x8c
main.main()
/tmp/go-build517556545/reflect/_test/_testmain.go:231 +0x9c

goroutine 35 [sleep]:
time.Sleep(0x3b9aca00)
/home/kortschak/go/src/pkg/runtime/time.goc:31 +0x31
reflect_test.selectWatcher()
/home/kortschak/go/src/pkg/reflect/all_test.go:1351 +0x2e
created by reflect_test.func·003
/home/kortschak/go/src/pkg/reflect/all_test.go:1081 +0x21

rax 0x8c7718
rbx 0x53af78
rcx 0x0
rdx 0xc210092fa8
rdi 0x0
rsi 0x8da840
rbp 0x0
rsp 0x7fff03d560b0
r8 0xc20fff6d00
r9 0x7fff03d56120
r10 0x3
r11 0x590110
r12 0x5a4a00
r13 0x15
r14 0x0
r15 0x2
rip 0x40e0e4
rflags 0x10283
cs 0x33
fs 0x0
gs 0x0
FAIL reflect 0.037s
ok regexp 0.128s
ok regexp/syntax 0.834s
ok runtime 11.918s
? runtime/cgo [no test files]
ok runtime/debug 0.040s
ok runtime/pprof 7.340s
? runtime/race [no test files]
ok sort 0.123s
ok strconv 0.568s
ok strings 0.297s
ok sync 0.078s
ok sync/atomic 0.072s
ok syscall 0.062s
ok testing 0.030s
? testing/iotest [no test files]
ok testing/quick 0.058s
ok text/scanner 0.034s
ok text/tabwriter 0.019s
ok text/template 0.055s
ok text/template/parse 0.046s
ok time 2.617s
ok unicode 0.047s
ok unicode/utf16 0.014s
ok unicode/utf8 0.120s
? unsafe [no test files]