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runtime: unknown variable size while test with msan #50460

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mengzhuo opened this issue Jan 6, 2022 · 3 comments
Closed

runtime: unknown variable size while test with msan #50460

mengzhuo opened this issue Jan 6, 2022 · 3 comments
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@mengzhuo
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mengzhuo commented Jan 6, 2022 •
edited

What version of Go are you using (go version)?

$ go version
go version devel go1.18-b5bfaf410a Thu Jan 6 00:26:47 2022 +0000 linux/amd64

Does this issue reproduce with the latest release?

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/root/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/root/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/root/godev"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/root/godev/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="devel go1.18-b5bfaf410a Thu Jan 6 00:26:47 2022 +0000"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="clang"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/root/godev/src/go.mod"
GOWORK=""
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/go-build2929981647=/tmp/go-build -gno-record-gcc-switches"
GOROOT/bin/go version: go version devel go1.18-b5bfaf410a Thu Jan 6 00:26:47 2022 +0000 linux/amd64
GOROOT/bin/go tool compile -V: compile version devel go1.18-b5bfaf410a Thu Jan 6 00:26:47 2022 +0000
uname -sr: Linux 5.10.0-9-amd64
Distributor ID:	Debian
Description:	Debian GNU/Linux 11 (bullseye)
Release:	11
Codename:	bullseye
/lib/x86_64-linux-gnu/libc.so.6: GNU C Library (Debian GLIBC 2.31-13+deb11u2) stable release version 2.31.
gdb --version: GNU gdb (Debian 10.1-1.7) 10.1.90.20210103-git

What did you do?

cd runtime && CC=clang ~/godev/bin/go test -msan

What did you expect to see?

PASSED

What did you see instead?

./msan_amd64.s:31:1: [amd64] domsanread: unknown variable size; offset 8 is sz+8(FP)
./msan_amd64.s:40:1: [amd64] msanwrite: unknown variable size; offset 8 is sz+8(FP)
./msan_amd64.s:48:1: [amd64] msanmalloc: unknown variable size; offset 8 is sz+8(FP)
./msan_amd64.s:56:1: [amd64] msanfree: unknown variable size; offset 8 is sz+8(FP)
./msan_amd64.s:65:1: [amd64] msanmove: unknown variable size; offset 16 is sz+16(FP)
# runtime_test [runtime.test]
./norace_linux_test.go:28:67: internal compiler error: missed typecheck: 
.   CONVNOP uintptr # norace_linux_test.go:28:67
.   .   ADDR PTR-*uintptr # norace_linux_test.go:28:67
.   .   .   LINKSYMOFFSET Offset:0 uintptr

goroutine 1 [running]:
runtime/debug.Stack()
	/root/godev/src/runtime/debug/stack.go:24 +0x65
cmd/compile/internal/base.FatalfAt({0xe92d10?, 0x0?}, {0xd2874b, 0x15}, {0xc004a8ede8, 0x1, 0x1})
	/root/godev/src/cmd/compile/internal/base/print.go:227 +0x1ca
cmd/compile/internal/base.Fatalf(...)
	/root/godev/src/cmd/compile/internal/base/print.go:196
cmd/compile/internal/walk.walkExpr({0xe92d10, 0xc0006bed20}, 0xc004a8fa70)
	/root/godev/src/cmd/compile/internal/walk/expr.go:48 +0x34b
cmd/compile/internal/walk.walkConv(0xc003112b90, 0xc003112b90?)
	/root/godev/src/cmd/compile/internal/walk/convert.go:23 +0x3b
cmd/compile/internal/walk.walkExpr1({0xe92d10, 0xc003112b90}, 0xc003112b90?)
	/root/godev/src/cmd/compile/internal/walk/expr.go:219 +0x5fb
cmd/compile/internal/walk.walkExpr({0xe92d10, 0xc003112b90}, 0xc004a8fa70)
	/root/godev/src/cmd/compile/internal/walk/expr.go:55 +0x428
cmd/compile/internal/walk.walkAssign(0xc004a8fa70, {0xe923b0, 0xc0006bedc0?})
	/root/godev/src/cmd/compile/internal/walk/assign.go:72 +0x9dc
cmd/compile/internal/walk.walkExpr1({0xe923b0, 0xc0006bedc0}, 0xc0006bedc0?)
	/root/godev/src/cmd/compile/internal/walk/expr.go:179 +0x43f
cmd/compile/internal/walk.walkExpr({0xe923b0, 0xc0006bedc0}, 0xc004a8fa70)
	/root/godev/src/cmd/compile/internal/walk/expr.go:55 +0x428
cmd/compile/internal/walk.appendWalkStmt(0xc004a8fa70, {0xe923b0, 0xc0006bedc0})
	/root/godev/src/cmd/compile/internal/walk/walk.go:256 +0x65
cmd/compile/internal/walk.copyExpr({0xe92d10?, 0xc003112b90}, 0xc004a8fa70?, 0xc004a8f410?)
	/root/godev/src/cmd/compile/internal/walk/expr.go:438 +0xf5
cmd/compile/internal/walk.cheapExpr({0xe92d10, 0xc003112b90}, 0xc004a8f4b8?)
	/root/godev/src/cmd/compile/internal/walk/expr.go:361 +0x76
cmd/compile/internal/walk.walkCheckPtrArithmetic(0xc003112b90, 0xc004a8fa70)
	/root/godev/src/cmd/compile/internal/walk/convert.go:464 +0x237
cmd/compile/internal/walk.walkConv(0xc003112b90, 0xc001308680?)
	/root/godev/src/cmd/compile/internal/walk/convert.go:29 +0xf6
cmd/compile/internal/walk.walkExpr1({0xe92d10, 0xc003112b90}, 0xc003112b90?)
	/root/godev/src/cmd/compile/internal/walk/expr.go:219 +0x5fb
cmd/compile/internal/walk.walkExpr({0xe92d10, 0xc003112b90}, 0xc004a8fa70)
	/root/godev/src/cmd/compile/internal/walk/expr.go:55 +0x428
cmd/compile/internal/walk.walkAssign(0xc004a8fa70, {0xe923b0, 0xc0006be780?})
	/root/godev/src/cmd/compile/internal/walk/assign.go:72 +0x9dc
cmd/compile/internal/walk.walkExpr1({0xe923b0, 0xc0006be780}, 0xc0006be780?)
	/root/godev/src/cmd/compile/internal/walk/expr.go:179 +0x43f
cmd/compile/internal/walk.walkExpr({0xe923b0, 0xc0006be780}, 0xc004a8fa70)
	/root/godev/src/cmd/compile/internal/walk/expr.go:55 +0x428
cmd/compile/internal/walk.walkStmt({0xe923b0, 0xc0006be780?})
	/root/godev/src/cmd/compile/internal/walk/stmt.go:57 +0x7da
cmd/compile/internal/walk.walkStmtList(...)
	/root/godev/src/cmd/compile/internal/walk/stmt.go:175
cmd/compile/internal/walk.Walk(0xc001737340)
	/root/godev/src/cmd/compile/internal/walk/walk.go:43 +0x151
cmd/compile/internal/gc.prepareFunc(0xc001737340)
	/root/godev/src/cmd/compile/internal/gc/compile.go:92 +0x6d
cmd/compile/internal/gc.enqueueFunc(0xc001737340)
	/root/godev/src/cmd/compile/internal/gc/compile.go:66 +0x2fd
cmd/compile/internal/gc.Main(0xd4bd08)
	/root/godev/src/cmd/compile/internal/gc/main.go:309 +0xf97
main.main()
	/root/godev/src/cmd/compile/main.go:55 +0xdd

FAIL	runtime [build failed]
@ianlancetaylor
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What exactly did you do to get that result? I don't know how to recreate the problem. Thanks.

@mengzhuo
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mengzhuo commented Jan 6, 2022 •
edited

What exactly did you do to get that result? I don't know how to recreate the problem. Thanks.

Sorry, I forgot to put command line in report.
cd runtime && CC=clang ~/godev/bin/go test -msan

@ianlancetaylor
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Ah. That is not expected to work. The runtime package is special, and you can't test it with the sanitizers.

Closing because this is not expected to work.

@golang golang locked and limited conversation to collaborators Jan 6, 2023
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