Closed
Description
What version of Go are you using (go version)?
$ go version go version go1.17.6 linux/amd64
Does this issue reproduce with the latest release?
Yes.
What operating system and processor architecture are you using (go env)?
go env Output
$ go env GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/afs/cern.ch/user/b/bburghgr/.cache/go-build" GOENV="/afs/cern.ch/user/b/bburghgr/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/afs/cern.ch/user/b/bburghgr/go/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/afs/cern.ch/user/b/bburghgr/go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/afs/cern.ch/user/b/bburghgr/temp/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/afs/cern.ch/user/b/bburghgr/temp/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17.6" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/dev/null" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/bburghgr/go-build2920779658=/tmp/go-build -gno-record-gcc-switches"
What did you do?
Attempt to run a go binary (including the main go binary) from an AFS volume:
rm -rvf ~/.cache/go-build/
mkdir temp
cd temp
wget https://go.dev/dl/go1.17.6.linux-amd64.tar.gz
tar xvf go1.17.6.linux-amd64.tar.gz
./go/bin/go test ./go/src/...
What did you expect to see?
The application should run normally, i.e. without a SIGBUS signal.
What did you see instead?
The program (at least one of the tests, in this case) crashes with a SIGBUS. Note that the problem seems to happen inconsistently, so short workflows seem more likely to succeed without problems, but clearing the caches and retrying seems to reproduce it within a couple of attempts:
./go/bin/go test ./go/src/... Output
ok archive/tar 0.178s
ok archive/zip 41.737s
ok bufio 0.236s
ok bytes 2.093s
ok compress/bzip2 0.113s
ok compress/flate 11.861s
ok compress/gzip 0.077s
ok compress/lzw 0.089s
ok compress/zlib 1.319s
ok container/heap 0.045s
ok container/list 0.057s
ok container/ring 0.051s
ok context 0.075s
ok crypto 0.006s
ok crypto/aes 0.033s
ok crypto/cipher 0.413s
ok crypto/des 0.047s
ok crypto/dsa 7.398s
ok crypto/ecdsa 3.067s
ok crypto/ed25519 0.796s
ok crypto/ed25519/internal/edwards25519 5.503s
ok crypto/ed25519/internal/edwards25519/field 2.508s
ok crypto/elliptic 2.542s
ok crypto/elliptic/internal/fiat 0.012s
ok crypto/hmac 0.050s
? crypto/internal/randutil [no test files]
ok crypto/internal/subtle 0.040s
ok crypto/md5 0.028s
ok crypto/rand 0.486s
ok crypto/rc4 0.047s
ok crypto/rsa 0.626s
ok crypto/sha1 0.049s
ok crypto/sha256 0.068s
ok crypto/sha512 0.025s
ok crypto/subtle 0.040s
ok crypto/tls 6.205s
ok crypto/x509 2.017s
? crypto/x509/pkix [no test files]
ok database/sql 1.464s
ok database/sql/driver 0.056s
ok debug/dwarf 0.024s
ok debug/elf 0.060s
ok debug/gosym 1.033s
ok debug/macho 0.016s
ok debug/pe 0.040s
ok debug/plan9obj 0.030s
? embed [no test files]
ok embed/internal/embedtest 0.040s
? encoding [no test files]
ok encoding/ascii85 0.043s
ok encoding/asn1 0.030s
ok encoding/base32 0.027s
ok encoding/base64 0.026s
ok encoding/binary 0.109s
ok encoding/csv 0.010s
ok encoding/gob 0.108s
ok encoding/hex 0.024s
ok encoding/json 2.096s
ok encoding/pem 0.017s
ok encoding/xml 0.061s
ok errors 0.045s
ok expvar 0.006s
ok flag 0.158s
ok fmt 0.134s
ok go/ast 0.022s
ok go/build 2.402s
ok go/build/constraint 0.036s
ok go/constant 0.030s
ok go/doc 0.062s
ok go/format 0.050s
ok go/importer 0.501s
ok go/internal/gccgoimporter 0.091s
ok go/internal/gcimporter 2.486s
ok go/internal/srcimporter 9.553s
? go/internal/typeparams [no test files]
ok go/parser 0.224s
ok go/printer 0.557s
ok go/scanner 0.033s
ok go/token 0.035s
ok go/types 60.487s
ok hash 0.012s
ok hash/adler32 0.015s
ok hash/crc32 0.055s
ok hash/crc64 0.109s
ok hash/fnv 0.087s
ok hash/maphash 165.150s
ok html 0.027s
ok html/template 0.662s
ok image 0.388s
ok image/color 0.029s
? image/color/palette [no test files]
ok image/draw 0.071s
ok image/gif 0.866s
? image/internal/imageutil [no test files]
ok image/jpeg 0.357s
ok image/png 1.462s
ok index/suffixarray 81.850s
ok internal/abi 0.217s
? internal/buildcfg [no test files]
? internal/bytealg [no test files]
? internal/cfg [no test files]
ok internal/cpu 0.114s
ok internal/execabs 0.044s
ok internal/fmtsort 0.018s
? internal/goexperiment [no test files]
? internal/goroot [no test files]
? internal/goversion [no test files]
ok internal/itoa 0.045s
? internal/lazyregexp [no test files]
? internal/lazytemplate [no test files]
? internal/nettrace [no test files]
? internal/obscuretestdata [no test files]
? internal/oserror [no test files]
ok internal/poll 0.833s
ok internal/profile 0.023s
? internal/race [no test files]
ok internal/reflectlite 0.140s
ok internal/singleflight 0.051s
? internal/syscall/execenv [no test files]
? internal/syscall/unix [no test files]
? internal/sysinfo [no test files]
? internal/testenv [no test files]
? internal/testlog [no test files]
ok internal/trace 2.279s
ok internal/unsafeheader 0.033s
ok internal/xcoff 0.047s
ok io 0.150s
ok io/fs 0.023s
ok io/ioutil 0.064s
ok log 0.028s
ok log/syslog 1.347s
ok math 0.025s
ok math/big 6.155s
ok math/bits 0.012s
ok math/cmplx 0.005s
ok math/rand 7.547s
ok mime 0.052s
ok mime/multipart 1.014s
ok mime/quotedprintable 0.407s
ok net 42.705s
ok net/http 85.905s
ok net/http/cgi 0.929s
ok net/http/cookiejar 0.036s
ok net/http/fcgi 0.122s
ok net/http/httptest 0.041s
ok net/http/httptrace 0.016s
ok net/http/httputil 1.417s
ok net/http/internal 0.020s
ok net/http/internal/ascii 0.083s
? net/http/internal/testcert [no test files]
ok net/http/pprof 5.208s
ok net/internal/socktest 0.029s
ok net/mail 0.009s
ok net/rpc 0.176s
ok net/rpc/jsonrpc 0.062s
ok net/smtp 0.047s
ok net/textproto 0.138s
ok net/url 0.034s
ok os 20.661s
ok os/exec 2.766s
ok os/signal 8.953s
? os/signal/internal/pty [no test files]
ok os/user 0.160s
ok path 0.074s
ok path/filepath 0.240s
ok plugin 0.073s
ok reflect 3.289s
? reflect/internal/example1 [no test files]
? reflect/internal/example2 [no test files]
ok regexp 24.081s
ok regexp/syntax 0.697s
--- FAIL: TestRaceProf (2.61s)
crash_cgo_test.go:393: building testprogcgo [-race]: exit status 2
# runtime/testdata/testprogcgo
fatal error: unexpected signal during runtime execution
[signal SIGBUS: bus error code=0x2 addr=0x65f7b4 pc=0x44f4fc]
runtime stack:
runtime.throw({0x5be319, 0x6beba8})
/usr/local/go/src/runtime/panic.go:1198 +0x71
runtime.sigpanic()
/usr/local/go/src/runtime/signal_unix.go:719 +0x396
runtime.step({0x65f7b4, 0x41d494, 0x5ca784}, 0x42de5c, 0xc00046a778, 0x0)
/usr/local/go/src/runtime/symtab.go:1030 +0x1c
runtime.pcvalue({0x6bd8a8, 0x6ceda0}, 0x488f4, 0x51345d, 0xc000591a38, 0x1)
/usr/local/go/src/runtime/symtab.go:834 +0x18a
runtime.funcspdelta({0x6bd8a8, 0x6ceda0}, 0x0, 0x0)
/usr/local/go/src/runtime/symtab.go:957 +0x4d
runtime.gentraceback(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7fffffff, 0x5c3ec0, 0x0, 0x0)
/usr/local/go/src/runtime/traceback.go:207 +0x59d
runtime.copystack(0xc0000001a0, 0x4000)
/usr/local/go/src/runtime/stack.go:918 +0x293
runtime.newstack()
/usr/local/go/src/runtime/stack.go:1097 +0x47b
runtime.morestack()
/usr/local/go/src/runtime/asm_amd64.s:461 +0x8b
goroutine 1 [copystack]:
runtime.deductSweepCredit(0x2000, 0x0)
/usr/local/go/src/runtime/mgcsweep.go:711 +0x145 fp=0xc000546338 sp=0xc000546330 pc=0x422f65
runtime.(*mcentral).cacheSpan(0x70ea08)
/usr/local/go/src/runtime/mcentral.go:82 +0x46 fp=0xc0005463b0 sp=0xc000546338 pc=0x415f86
runtime.(*mcache).refill(0x7fe6c85ed3c8, 0xb)
/usr/local/go/src/runtime/mcache.go:162 +0xaf fp=0xc000546400 sp=0xc0005463b0 pc=0x41580f
runtime.(*mcache).nextFree(0x7fe6c85ed3c8, 0xb)
/usr/local/go/src/runtime/malloc.go:886 +0x85 fp=0xc000546448 sp=0xc000546400 pc=0x40bfc5
runtime.mallocgc(0x30, 0x0, 0x0)
/usr/local/go/src/runtime/malloc.go:1077 +0x4e8 fp=0xc0005464c8 sp=0xc000546448 pc=0x40c648
runtime.growslice(0x5a04c0, {0x0, 0xc00046a5b8, 0x0}, 0x0)
/usr/local/go/src/runtime/slice.go:261 +0x4ac fp=0xc000546530 sp=0xc0005464c8 pc=0x4489ac
go/printer.(*printer).writeString(0xc000546a00, {{0x0, 0x0}, 0x0, 0x1, 0x1}, {0xc0003272c0, 0x22}, 0x0)
/usr/local/go/src/go/printer/printer.go:313 +0x1e5 fp=0xc0005465b0 sp=0xc000546530 pc=0x51b725
go/printer.(*printer).print(0xc000546a00, {0xc000546778, 0x1, 0xc0003d2600})
/usr/local/go/src/go/printer/printer.go:1017 +0x65b fp=0xc0005466d0 sp=0xc0005465b0 pc=0x51db1b
go/printer.(*printer).expr1(0xc00046aa00, {0x5f11f8, 0xc0002dc020}, 0x0, 0x1)
/usr/local/go/src/go/printer/nodes.go:788 +0xcdd fp=0xc0005468f0 sp=0xc0005466d0 pc=0x51345d
go/printer.(*printer).expr(...)
/usr/local/go/src/go/printer/nodes.go:1117
go/printer.(*printer).printNode(0xc00046aa00, {0x5961e0, 0xc0002dc020})
/usr/local/go/src/go/printer/printer.go:1138 +0x375 fp=0xc000546990 sp=0xc0005468f0 pc=0x51e295
go/printer.(*Config).fprint(0xc00046abe0, {0x5ed740, 0xc0001bc030}, 0x22, {0x5961e0, 0xc0002dc020}, 0xc0001bc000)
/usr/local/go/src/go/printer/printer.go:1319 +0x17c fp=0xc000546b98 sp=0xc000546990 pc=0x51ee7c
go/printer.(*printer).nodeSize(0xc00046b360, {0x5f03d0, 0xc0002dc020}, 0xf4240)
/usr/local/go/src/go/printer/nodes.go:1720 +0x134 fp=0xc000546c28 sp=0xc000546b98 pc=0x519154
go/printer.(*printer).exprList(0xc00046b360, 0xc00046b0f8, {0xc000346000, 0x1, 0x36c0046b068}, 0xf00000013, 0x1, 0xc00046b770, 0x0)
/usr/local/go/src/go/printer/nodes.go:213 +0x8c5 fp=0xc000547030 sp=0xc000546c28 pc=0x50f005
go/printer.(*printer).expr1(0xc00046b360, {0x5f0ef8, 0xc000110000}, 0x0, 0x1)
/usr/local/go/src/go/printer/nodes.go:949 +0x1890 fp=0xc000547250 sp=0xc000547030 pc=0x514010
go/printer.(*printer).expr(...)
/usr/local/go/src/go/printer/nodes.go:1117
go/printer.(*printer).printNode(0xc00046b360, {0x58cfa0, 0xc000110000})
/usr/local/go/src/go/printer/printer.go:1138 +0x375 fp=0xc0005472f0 sp=0xc000547250 pc=0x51e295
go/printer.(*Config).fprint(0xc00046b530, {0x5ed740, 0x6e5580}, 0x5c3d70, {0x58cfa0, 0xc000110000}, 0xc0001bc000)
/usr/local/go/src/go/printer/printer.go:1319 +0x17c fp=0xc0005474f8 sp=0xc0005472f0 pc=0x51ee7c
go/printer.(*Config).Fprint(...)
/usr/local/go/src/go/printer/printer.go:1381
go/printer.Fprint(...)
/usr/local/go/src/go/printer/printer.go:1390
main.gofmt({0x58cfa0, 0xc000110000})
/usr/local/go/src/cmd/cgo/godefs.go:123 +0xa5 fp=0xc000547560 sp=0xc0005474f8 pc=0x55b5a5
main.gofmtLine({0x58cfa0, 0xc000110000})
/usr/local/go/src/cmd/cgo/godefs.go:170 +0x25 fp=0xc000547588 sp=0xc000547560 pc=0x55b685
main.gofmtPos({0x5f0ef8, 0xc000110000}, 0xc00022b820)
/usr/local/go/src/cmd/cgo/gcc.go:1540 +0x4e fp=0xc000547680 sp=0xc000547588 pc=0x54d6ae
main.(*Package).rewriteRef(0xc000144000, 0xc000134dc0)
/usr/local/go/src/cmd/cgo/gcc.go:1399 +0x636 fp=0xc000547a60 sp=0xc000547680 pc=0x54bcd6
main.(*Package).Translate(0xc000144000, 0xc000134dc0)
/usr/local/go/src/cmd/cgo/gcc.go:212 +0x3fb fp=0xc000547cd0 sp=0xc000547a60 pc=0x54433b
main.main()
/usr/local/go/src/cmd/cgo/main.go:375 +0x6e5 fp=0xc000547f80 sp=0xc000547cd0 pc=0x55bfc5
runtime.main()
/usr/local/go/src/runtime/proc.go:255 +0x227 fp=0xc000547fe0 sp=0xc000547f80 pc=0x4345e7
runtime.goexit()
/usr/local/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc000547fe8 sp=0xc000547fe0 pc=0x45fdc1
--- FAIL: TestRaceSignal (0.00s)
crash_cgo_test.go:422: building testprogcgo [-race]: exit status 2
# runtime/testdata/testprogcgo
fatal error: unexpected signal during runtime execution
[signal SIGBUS: bus error code=0x2 addr=0x65f7b4 pc=0x44f4fc]
runtime stack:
runtime.throw({0x5be319, 0x6beba8})
/usr/local/go/src/runtime/panic.go:1198 +0x71
runtime.sigpanic()
/usr/local/go/src/runtime/signal_unix.go:719 +0x396
runtime.step({0x65f7b4, 0x41d494, 0x5ca784}, 0x42de5c, 0xc00046a778, 0x0)
/usr/local/go/src/runtime/symtab.go:1030 +0x1c
runtime.pcvalue({0x6bd8a8, 0x6ceda0}, 0x488f4, 0x51345d, 0xc000591a38, 0x1)
/usr/local/go/src/runtime/symtab.go:834 +0x18a
runtime.funcspdelta({0x6bd8a8, 0x6ceda0}, 0x0, 0x0)
/usr/local/go/src/runtime/symtab.go:957 +0x4d
runtime.gentraceback(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7fffffff, 0x5c3ec0, 0x0, 0x0)
/usr/local/go/src/runtime/traceback.go:207 +0x59d
runtime.copystack(0xc0000001a0, 0x4000)
/usr/local/go/src/runtime/stack.go:918 +0x293
runtime.newstack()
/usr/local/go/src/runtime/stack.go:1097 +0x47b
runtime.morestack()
/usr/local/go/src/runtime/asm_amd64.s:461 +0x8b
goroutine 1 [copystack]:
runtime.deductSweepCredit(0x2000, 0x0)
/usr/local/go/src/runtime/mgcsweep.go:711 +0x145 fp=0xc000546338 sp=0xc000546330 pc=0x422f65
runtime.(*mcentral).cacheSpan(0x70ea08)
/usr/local/go/src/runtime/mcentral.go:82 +0x46 fp=0xc0005463b0 sp=0xc000546338 pc=0x415f86
runtime.(*mcache).refill(0x7fe6c85ed3c8, 0xb)
/usr/local/go/src/runtime/mcache.go:162 +0xaf fp=0xc000546400 sp=0xc0005463b0 pc=0x41580f
runtime.(*mcache).nextFree(0x7fe6c85ed3c8, 0xb)
/usr/local/go/src/runtime/malloc.go:886 +0x85 fp=0xc000546448 sp=0xc000546400 pc=0x40bfc5
runtime.mallocgc(0x30, 0x0, 0x0)
/usr/local/go/src/runtime/malloc.go:1077 +0x4e8 fp=0xc0005464c8 sp=0xc000546448 pc=0x40c648
runtime.growslice(0x5a04c0, {0x0, 0xc00046a5b8, 0x0}, 0x0)
/usr/local/go/src/runtime/slice.go:261 +0x4ac fp=0xc000546530 sp=0xc0005464c8 pc=0x4489ac
go/printer.(*printer).writeString(0xc000546a00, {{0x0, 0x0}, 0x0, 0x1, 0x1}, {0xc0003272c0, 0x22}, 0x0)
/usr/local/go/src/go/printer/printer.go:313 +0x1e5 fp=0xc0005465b0 sp=0xc000546530 pc=0x51b725
go/printer.(*printer).print(0xc000546a00, {0xc000546778, 0x1, 0xc0003d2600})
/usr/local/go/src/go/printer/printer.go:1017 +0x65b fp=0xc0005466d0 sp=0xc0005465b0 pc=0x51db1b
go/printer.(*printer).expr1(0xc00046aa00, {0x5f11f8, 0xc0002dc020}, 0x0, 0x1)
/usr/local/go/src/go/printer/nodes.go:788 +0xcdd fp=0xc0005468f0 sp=0xc0005466d0 pc=0x51345d
go/printer.(*printer).expr(...)
/usr/local/go/src/go/printer/nodes.go:1117
go/printer.(*printer).printNode(0xc00046aa00, {0x5961e0, 0xc0002dc020})
/usr/local/go/src/go/printer/printer.go:1138 +0x375 fp=0xc000546990 sp=0xc0005468f0 pc=0x51e295
go/printer.(*Config).fprint(0xc00046abe0, {0x5ed740, 0xc0001bc030}, 0x22, {0x5961e0, 0xc0002dc020}, 0xc0001bc000)
/usr/local/go/src/go/printer/printer.go:1319 +0x17c fp=0xc000546b98 sp=0xc000546990 pc=0x51ee7c
go/printer.(*printer).nodeSize(0xc00046b360, {0x5f03d0, 0xc0002dc020}, 0xf4240)
/usr/local/go/src/go/printer/nodes.go:1720 +0x134 fp=0xc000546c28 sp=0xc000546b98 pc=0x519154
go/printer.(*printer).exprList(0xc00046b360, 0xc00046b0f8, {0xc000346000, 0x1, 0x36c0046b068}, 0xf00000013, 0x1, 0xc00046b770, 0x0)
/usr/local/go/src/go/printer/nodes.go:213 +0x8c5 fp=0xc000547030 sp=0xc000546c28 pc=0x50f005
go/printer.(*printer).expr1(0xc00046b360, {0x5f0ef8, 0xc000110000}, 0x0, 0x1)
/usr/local/go/src/go/printer/nodes.go:949 +0x1890 fp=0xc000547250 sp=0xc000547030 pc=0x514010
go/printer.(*printer).expr(...)
/usr/local/go/src/go/printer/nodes.go:1117
go/printer.(*printer).printNode(0xc00046b360, {0x58cfa0, 0xc000110000})
/usr/local/go/src/go/printer/printer.go:1138 +0x375 fp=0xc0005472f0 sp=0xc000547250 pc=0x51e295
go/printer.(*Config).fprint(0xc00046b530, {0x5ed740, 0x6e5580}, 0x5c3d70, {0x58cfa0, 0xc000110000}, 0xc0001bc000)
/usr/local/go/src/go/printer/printer.go:1319 +0x17c fp=0xc0005474f8 sp=0xc0005472f0 pc=0x51ee7c
go/printer.(*Config).Fprint(...)
/usr/local/go/src/go/printer/printer.go:1381
go/printer.Fprint(...)
/usr/local/go/src/go/printer/printer.go:1390
main.gofmt({0x58cfa0, 0xc000110000})
/usr/local/go/src/cmd/cgo/godefs.go:123 +0xa5 fp=0xc000547560 sp=0xc0005474f8 pc=0x55b5a5
main.gofmtLine({0x58cfa0, 0xc000110000})
/usr/local/go/src/cmd/cgo/godefs.go:170 +0x25 fp=0xc000547588 sp=0xc000547560 pc=0x55b685
main.gofmtPos({0x5f0ef8, 0xc000110000}, 0xc00022b820)
/usr/local/go/src/cmd/cgo/gcc.go:1540 +0x4e fp=0xc000547680 sp=0xc000547588 pc=0x54d6ae
main.(*Package).rewriteRef(0xc000144000, 0xc000134dc0)
/usr/local/go/src/cmd/cgo/gcc.go:1399 +0x636 fp=0xc000547a60 sp=0xc000547680 pc=0x54bcd6
main.(*Package).Translate(0xc000144000, 0xc000134dc0)
/usr/local/go/src/cmd/cgo/gcc.go:212 +0x3fb fp=0xc000547cd0 sp=0xc000547a60 pc=0x54433b
main.main()
/usr/local/go/src/cmd/cgo/main.go:375 +0x6e5 fp=0xc000547f80 sp=0xc000547cd0 pc=0x55bfc5
runtime.main()
/usr/local/go/src/runtime/proc.go:255 +0x227 fp=0xc000547fe0 sp=0xc000547f80 pc=0x4345e7
runtime.goexit()
/usr/local/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc000547fe8 sp=0xc000547fe0 pc=0x45fdc1
FAIL
FAIL runtime 308.329s
ok runtime/cgo 0.015s
ok runtime/debug 0.189s
ok runtime/internal/atomic 2.970s
ok runtime/internal/math 0.004s
ok runtime/internal/sys 0.067s
ok runtime/metrics 0.079s
ok runtime/pprof 54.341s
? runtime/race [no test files]
ok runtime/trace 14.803s
ok sort 0.702s
ok strconv 1.876s
ok strings 1.406s
ok sync 5.423s
ok sync/atomic 62.616s
ok syscall 0.185s
ok testing 3.597s
ok testing/fstest 0.040s
? testing/internal/testdeps [no test files]
ok testing/iotest 0.091s
ok testing/quick 0.080s
ok text/scanner 0.030s
ok text/tabwriter 0.046s
--- FAIL: TestLinkerGC (1.69s)
link_test.go:50: go build: exit status 2, # command-line-arguments
unexpected fault address 0x7fa404e99200
fatal error: fault
[signal SIGBUS: bus error code=0x2 addr=0x7fa404e99200 pc=0x567692]
goroutine 1 [running]:
runtime.throw({0x66cc87, 0xc0000a8000})
/usr/local/go/src/runtime/panic.go:1198 +0x71 fp=0xc00011c940 sp=0xc00011c910 pc=0x434291
runtime.sigpanic()
/usr/local/go/src/runtime/signal_unix.go:732 +0x125 fp=0xc00011c990 sp=0xc00011c940 pc=0x44a4e5
encoding/binary.littleEndian.Uint16(...)
/usr/local/go/src/encoding/binary/binary.go:54
cmd/internal/goobj.(*Reloc).Type(...)
/usr/local/go/src/cmd/internal/goobj/objfile.go:386
cmd/link/internal/loader.Reloc.Weak(...)
/usr/local/go/src/cmd/link/internal/loader/loader.go:57
cmd/link/internal/ld.(*deadcodePass).flood(0xc00011cc38)
/usr/local/go/src/cmd/link/internal/ld/deadcode.go:137 +0x4d2 fp=0xc00011cb70 sp=0xc00011c990 pc=0x567692
cmd/link/internal/ld.deadcode(0xc000160000)
/usr/local/go/src/cmd/link/internal/ld/deadcode.go:330 +0x9d fp=0xc00011ccb0 sp=0xc00011cb70 pc=0x5687bd
cmd/link/internal/ld.Main(_, {0x20, 0x20, 0x1, 0x7, 0x10, 0x0, {0x0, 0x0}, {0x678999, ...}, ...})
/usr/local/go/src/cmd/link/internal/ld/main.go:252 +0xdb2 fp=0xc00011cf28 sp=0xc00011ccb0 pc=0x5a9c12
main.main()
/usr/local/go/src/cmd/link/main.go:69 +0x1005 fp=0xc00011df80 sp=0xc00011cf28 pc=0x612fc5
runtime.main()
/usr/local/go/src/runtime/proc.go:255 +0x227 fp=0xc00011dfe0 sp=0xc00011df80 pc=0x436967
runtime.goexit()
/usr/local/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc00011dfe8 sp=0xc00011dfe0 pc=0x463c61
FAIL
FAIL text/template 2.251s
ok text/template/parse 0.017s
ok time 9.976s
? time/tzdata [no test files]
ok unicode 0.017s
ok unicode/utf16 0.013s
ok unicode/utf8 0.074s
? unsafe [no test files]
FAIL
More Information
This does not appear to be specific to the go test command or the go executable in general, that just happens to be an easy example to reproduce the problem. The problem is reproducible (to varying degrees of success) with user applications written in go, although so far I have only managed to trigger the signal with (filesystem) I/O intensive applications. That seems to be true regardless of where the other files are located (and what filesystem they are on), so long as the application binary itself is on an AFS volume, as noted in go-hep/hep#885.
I believe this is may be the same problem mentioned in the comment #37310 (comment), which does not appear to have a dedicated issue. This also appears suspiciously similar to an issue with go binaries and gcsfuse, see: #48997. The workaround from the latter issue appears to work here as well: running with GODEBUG=asyncpreemptoff=1 seems to prevent the SIGBUS error from occuring (for both the main go binary or for compiled user applications).
If I had to guess, I would say that this looks like something is being preempted at a point that's unsafe if the binary happens to be on AFS (or apparently gcsfuse), but which turns out to be safe (in practice) on other filesystems. I don't know if that's a Go problem or an AFS (and gcsfuse) problem, but other binaries do not encounter a SIGBUS when running from the same AFS volume (or on gcsfuse, according to that issue), so my initial suspicious is that the problem is on the Go side.