panic: runtime error: invalid memory address or nil pointer dereference, during tests, after building with gollvm

[advancedwebdeveloper]

Hi there. I have tried to build your project and run your tests, using gollvm .

WORK=/tmp/go-build745669351 mkdir -p $WORK/b001/ mkdir -p $WORK/b030/ mkdir -p $WORK/b055/ mkdir -p $WORK/b016/ mkdir -p $WORK/b026/ mkdir -p $WORK/b058/ mkdir -p $WORK/b060/ mkdir -p $WORK/b067/ mkdir -p $WORK/b031/ mkdir -p $WORK/b063/ mkdir -p $WORK/b062/ mkdir -p $WORK/b059/ mkdir -p $WORK/b066/ mkdir -p $WORK/b068/ mkdir -p $WORK/b056/ mkdir -p $WORK/b022/ mkdir -p $WORK/b069/ mkdir -p $WORK/b065/ mkdir -p $WORK/b071/ mkdir -p $WORK/b053/ mkdir -p $WORK/b021/ mkdir -p $WORK/b008/ cat >$WORK/b001/importcfg.link << 'EOF' # internal packagefile github.com/cisco/go-mls.test=/home/oceanfish81/.cache/go-build/a4/a49f5f655fee45e9061e3ce99eecc6ab1779202b341e38b10c505199e180b640-d packagefile github.com/cisco/go-mls=/home/oceanfish81/.cache/go-build/46/46c1fdb32399b31645d9d92a8eef6873f7b0632ce5dfeebc03a50d04090e8314-d packagefile github.com/cisco/go-tls-syntax=/home/oceanfish81/.cache/go-build/38/386780eec56678e3f9bd060f4996463284458962c4823105d100e3fe886836bb-d packagefile github.com/stretchr/testify/require=/home/oceanfish81/.cache/go-build/22/22658188308d3dfb26a8ebd48e9db7a23d4423d7e8edf7476b4eb4794e7eab66-d packagefile github.com/cisco/go-hpke=/home/oceanfish81/.cache/go-build/30/30ff53905c8069d2b504f95127901daa60dae7ed14040abd16d504e8db834eb7-d packagefile golang.org/x/crypto/chacha20poly1305=/home/oceanfish81/.cache/go-build/b2/b20ccf81e8c8edcd58b3380ac422e7ffeac602314a881e846c88ebb3a06ae7e4-d packagefile golang.org/x/crypto/ed25519=/home/oceanfish81/.cache/go-build/41/410c93aff478a856645491b577167425a11deafe127f3221f1f5b1f7631c512d-d packagefile github.com/stretchr/testify/assert=/home/oceanfish81/.cache/go-build/85/85c370f4495b07c435cc32d2b1e90b983d5d00e4c6cd73f530b0013713665a0a-d packagefile git.schwanenlied.me/yawning/x448.git=/home/oceanfish81/.cache/go-build/d5/d584cd6fe3934f8d21a76a02eeb40dc0bde5a05bc0c2770758fa9f03d9f2a38f-d packagefile github.com/cloudflare/circl/dh/sidh=/home/oceanfish81/.cache/go-build/8c/8c215d5de55ca9a35bded57b0f3559f39422cdde355f43277bf3b783f02d02ff-d packagefile golang.org/x/crypto/curve25519=/home/oceanfish81/.cache/go-build/4c/4cc0716b72970e43141485dead61490c7faded2a3947b9ccbbbea8dac01410c3-d packagefile golang.org/x/crypto/chacha20=/home/oceanfish81/.cache/go-build/0f/0f4772b0813cdb3e8be465dfe2396327bd7252b3da835d16703c0344d4413dd9-d packagefile golang.org/x/crypto/internal/subtle=/home/oceanfish81/.cache/go-build/a6/a61b84435ebdfa9a376cbfec112030903f393826fb5d14c16f7589f3bca4af48-d packagefile golang.org/x/crypto/poly1305=/home/oceanfish81/.cache/go-build/7a/7aa798315e9477bb299ee1838a13c455be875d986dca716bab88de8b684d7b53-d packagefile github.com/davecgh/go-spew/spew=/home/oceanfish81/.cache/go-build/1b/1b7d599e5c381d0855655ad97985e6b119755fbae80e55bd37bd8f0581a4354f-d packagefile github.com/pmezard/go-difflib/difflib=/home/oceanfish81/.cache/go-build/70/70c764160d4d4bafe3b50d510deb1c71c1f53f3776e03397dc5370c0f3b581b0-d packagefile gopkg.in/yaml.v3=/home/oceanfish81/.cache/go-build/84/8479df47a78a204c41f73d6717804662586a7a33cfdace4666d0040ff028dbf3-d packagefile github.com/cloudflare/circl/dh/sidh/internal/common=/home/oceanfish81/.cache/go-build/f3/f3ecaeb380bd7dafcdfd06897e0994b61f82fb12915c634d71f93192d71d752e-d packagefile github.com/cloudflare/circl/dh/sidh/internal/p503=/home/oceanfish81/.cache/go-build/0b/0b021a0b020e4c9684aa52280f16643f5a264edfebf2a9a2f3bbd9f4d6c02c74-d packagefile github.com/cloudflare/circl/dh/sidh/internal/p751=/home/oceanfish81/.cache/go-build/e2/e27f1b8c8790932db558e18298d34976cb1dc505c9bcc94faf060e2d121f3834-d packagefile github.com/cloudflare/circl/dh/sidh/internal/shake=/home/oceanfish81/.cache/go-build/37/377d4565b639d3db3ef937c79b71f84eadac3e2d308a824331acb78c1ace059c-d packagefile golang.org/x/sys/cpu=/home/oceanfish81/.cache/go-build/29/29fd5ddc449865d135ddade00e4118afda8b921530193b30e0480ad6fa2bc12f-d EOF cd . /usr/local/bin/llvm-goc -o $WORK/b001/go-mls.test "-Wl,-(" -m64 -Wl,--whole-archive /home/oceanfish81/.cache/go-build/a4/a49f5f655fee45e9061e3ce99eecc6ab1779202b341e38b10c505199e180b640-d /home/oceanfish81/.cache/go-build/46/46c1fdb32399b31645d9d92a8eef6873f7b0632ce5dfeebc03a50d04090e8314-d /home/oceanfish81/.cache/go-build/38/386780eec56678e3f9bd060f4996463284458962c4823105d100e3fe886836bb-d /home/oceanfish81/.cache/go-build/22/22658188308d3dfb26a8ebd48e9db7a23d4423d7e8edf7476b4eb4794e7eab66-d /home/oceanfish81/.cache/go-build/30/30ff53905c8069d2b504f95127901daa60dae7ed14040abd16d504e8db834eb7-d /home/oceanfish81/.cache/go-build/b2/b20ccf81e8c8edcd58b3380ac422e7ffeac602314a881e846c88ebb3a06ae7e4-d /home/oceanfish81/.cache/go-build/41/410c93aff478a856645491b577167425a11deafe127f3221f1f5b1f7631c512d-d /home/oceanfish81/.cache/go-build/85/85c370f4495b07c435cc32d2b1e90b983d5d00e4c6cd73f530b0013713665a0a-d /home/oceanfish81/.cache/go-build/d5/d584cd6fe3934f8d21a76a02eeb40dc0bde5a05bc0c2770758fa9f03d9f2a38f-d /home/oceanfish81/.cache/go-build/8c/8c215d5de55ca9a35bded57b0f3559f39422cdde355f43277bf3b783f02d02ff-d /home/oceanfish81/.cache/go-build/4c/4cc0716b72970e43141485dead61490c7faded2a3947b9ccbbbea8dac01410c3-d /home/oceanfish81/.cache/go-build/0f/0f4772b0813cdb3e8be465dfe2396327bd7252b3da835d16703c0344d4413dd9-d /home/oceanfish81/.cache/go-build/a6/a61b84435ebdfa9a376cbfec112030903f393826fb5d14c16f7589f3bca4af48-d /home/oceanfish81/.cache/go-build/7a/7aa798315e9477bb299ee1838a13c455be875d986dca716bab88de8b684d7b53-d /home/oceanfish81/.cache/go-build/1b/1b7d599e5c381d0855655ad97985e6b119755fbae80e55bd37bd8f0581a4354f-d /home/oceanfish81/.cache/go-build/70/70c764160d4d4bafe3b50d510deb1c71c1f53f3776e03397dc5370c0f3b581b0-d /home/oceanfish81/.cache/go-build/84/8479df47a78a204c41f73d6717804662586a7a33cfdace4666d0040ff028dbf3-d /home/oceanfish81/.cache/go-build/f3/f3ecaeb380bd7dafcdfd06897e0994b61f82fb12915c634d71f93192d71d752e-d /home/oceanfish81/.cache/go-build/0b/0b021a0b020e4c9684aa52280f16643f5a264edfebf2a9a2f3bbd9f4d6c02c74-d /home/oceanfish81/.cache/go-build/e2/e27f1b8c8790932db558e18298d34976cb1dc505c9bcc94faf060e2d121f3834-d /home/oceanfish81/.cache/go-build/37/377d4565b639d3db3ef937c79b71f84eadac3e2d308a824331acb78c1ace059c-d /home/oceanfish81/.cache/go-build/29/29fd5ddc449865d135ddade00e4118afda8b921530193b30e0480ad6fa2bc12f-d -Wl,--no-whole-archive "-Wl,-)" -Wl,--build-id=0x327069746b58372d77733054456c7038745a68662f324d387263562d7a5865594e39595a327543416a2f506a3035454d6f54394d304f454d6a62766f72422f327069746b58372d77733054456c7038745a6866 cat >$WORK/b008/vet.cfg << 'EOF' # internal { "ID": "github.com/cisco/go-mls", "Compiler": "gccgo", "Dir": "/home/oceanfish81/go-mls", "ImportPath": "github.com/cisco/go-mls", "GoFiles": [ "/home/oceanfish81/go-mls/common.go", "/home/oceanfish81/go-mls/credential.go", "/home/oceanfish81/go-mls/crypto.go", "/home/oceanfish81/go-mls/extensions.go", "/home/oceanfish81/go-mls/key-schedule.go", "/home/oceanfish81/go-mls/messages.go", "/home/oceanfish81/go-mls/state.go", "/home/oceanfish81/go-mls/tree-math.go", "/home/oceanfish81/go-mls/treekem.go", "/home/oceanfish81/go-mls/common_test.go", "/home/oceanfish81/go-mls/credential_test.go", "/home/oceanfish81/go-mls/crypto_test.go", "/home/oceanfish81/go-mls/extensions_test.go", "/home/oceanfish81/go-mls/key-schedule_test.go", "/home/oceanfish81/go-mls/messages_test.go", "/home/oceanfish81/go-mls/state_test.go", "/home/oceanfish81/go-mls/test-vectors_test.go", "/home/oceanfish81/go-mls/tree-math_test.go", "/home/oceanfish81/go-mls/treekem_test.go" ], "NonGoFiles": [], "ImportMap": { "bytes": "bytes", "crypto": "crypto", "crypto/aes": "crypto/aes", "crypto/cipher": "crypto/cipher", "crypto/ecdsa": "crypto/ecdsa", "crypto/ed25519": "crypto/ed25519", "crypto/elliptic": "crypto/elliptic", "crypto/hmac": "crypto/hmac", "crypto/rand": "crypto/rand", "crypto/sha256": "crypto/sha256", "crypto/sha512": "crypto/sha512", "crypto/x509": "crypto/x509", "encoding/asn1": "encoding/asn1", "encoding/hex": "encoding/hex", "fmt": "fmt", "github.com/cisco/go-hpke": "github.com/cisco/go-hpke", "github.com/cisco/go-tls-syntax": "github.com/cisco/go-tls-syntax", "github.com/stretchr/testify/require": "github.com/stretchr/testify/require", "golang.org/x/crypto/chacha20poly1305": "golang.org/x/crypto/chacha20poly1305", "golang.org/x/crypto/ed25519": "golang.org/x/crypto/ed25519", "hash": "hash", "io/ioutil": "io/ioutil", "math/big": "math/big", "math/rand": "math/rand", "os": "os", "path/filepath": "path/filepath", "reflect": "reflect", "testing": "testing", "time": "time" }, "PackageFile": { "github.com/cisco/go-hpke": "/home/oceanfish81/.cache/go-build/30/30ff53905c8069d2b504f95127901daa60dae7ed14040abd16d504e8db834eb7-d", "github.com/cisco/go-tls-syntax": "/home/oceanfish81/.cache/go-build/38/386780eec56678e3f9bd060f4996463284458962c4823105d100e3fe886836bb-d", "github.com/stretchr/testify/require": "/home/oceanfish81/.cache/go-build/22/22658188308d3dfb26a8ebd48e9db7a23d4423d7e8edf7476b4eb4794e7eab66-d", "golang.org/x/crypto/chacha20poly1305": "/home/oceanfish81/.cache/go-build/b2/b20ccf81e8c8edcd58b3380ac422e7ffeac602314a881e846c88ebb3a06ae7e4-d", "golang.org/x/crypto/ed25519": "/home/oceanfish81/.cache/go-build/41/410c93aff478a856645491b577167425a11deafe127f3221f1f5b1f7631c512d-d" }, "Standard": { "bytes": true, "crypto": true, "crypto/aes": true, "crypto/cipher": true, "crypto/ecdsa": true, "crypto/ed25519": true, "crypto/elliptic": true, "crypto/hmac": true, "crypto/rand": true, "crypto/sha256": true, "crypto/sha512": true, "crypto/x509": true, "encoding/asn1": true, "encoding/hex": true, "fmt": true, "hash": true, "io/ioutil": true, "math/big": true, "math/rand": true, "os": true, "path/filepath": true, "reflect": true, "testing": true, "time": true }, "PackageVetx": { "github.com/cisco/go-hpke": "/home/oceanfish81/.cache/go-build/e3/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855-d", "github.com/cisco/go-tls-syntax": "/home/oceanfish81/.cache/go-build/e3/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855-d", "github.com/stretchr/testify/require": "/home/oceanfish81/.cache/go-build/e3/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855-d", "golang.org/x/crypto/chacha20poly1305": "/home/oceanfish81/.cache/go-build/e3/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855-d", "golang.org/x/crypto/ed25519": "/home/oceanfish81/.cache/go-build/e3/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855-d" }, "VetxOnly": false, "VetxOutput": "$WORK/b008/vet.out", "SucceedOnTypecheckFailure": false } EOF cd /home/oceanfish81/go-mls TERM='dumb' GCCGO='/usr/local/bin/llvm-goc' /usr/local/tools/vet -atomic -bool -buildtags -errorsas -ifaceassert -nilfunc -printf -stringintconv $WORK/b008/vet.cfg $WORK/b001/go-mls.test -test.timeout=10m0s -test.v=true panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x4cfb50]

goroutine 1 [running]: gccgoXgetbv ./vendor/golang.org/x/sys/cpu/cpu_gccgo.c:40 cpu.xgetbv /home/oceanfish81/go-mls/vendor/golang.org/x/sys/cpu/cpu_gccgo.go:24 golang.x2eorg..z2fx..z2fsys..z2fcpu.golang.x2eorg..z2fx..z2fsys..z2fcpu..init0 /home/oceanfish81/go-mls/vendor/golang.org/x/sys/cpu/cpu_x86.go:37 golang.x2eorg..z2fx..z2fsys..z2fcpu..import /home/oceanfish81/go-mls/vendor/golang.org/x/sys/cpu/cpu_x86.go:11 exit status 2 FAIL github.com/cisco/go-mls 0.453s rm -r $WORK/b001/

Here is my environment:

$ go version && go env go version go1.15rc2 gollvm LLVM 12.0.0git linux/amd64 GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/home/oceanfish81/.cache/go-build" GOENV="/home/oceanfish81/.config/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/home/oceanfish81/go/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/home/oceanfish81/go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/tools" GCCGO="/usr/local/bin/llvm-goc" AR="ar" CC="/usr/bin/clang" CXX="/usr/bin/clang++" CGO_ENABLED="1" GOMOD="" 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 -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build618217749=/tmp/go-build -gno-record-gcc-switches -funwind-tables"

That's under ubuntu 20 x86_64.

CC @bifurcation @suhasHere BBC @thanm @cherrymui

Ivan

[advancedwebdeveloper]

Please inform about required debugging scenario