Any applications built with race-detector error and fail on startup if using CGO #48231
Description
What version of Go are you using (go version)?
$ go version go version go1.17 windows/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 set GO111MODULE=auto set GOARCH=amd64 set GOBIN= set GOCACHE=C:\Users\keith\AppData\Local\go-build set GOENV=C:\Users\keith\AppData\Roaming\go\env set GOEXE=.exe set GOEXPERIMENT= set GOFLAGS= set GOHOSTARCH=amd64 set GOHOSTOS=windows set GOINSECURE= set GOMODCACHE=C:\py\go\pkg\mod set GONOPROXY=github.com/keithcat1/nvgo set GONOSUMDB=github.com/keithcat1/nvgo set GOOS=windows set GOPATH=C:\py\go set GOPRIVATE=github.com/keithcat1/nvgo set GOPROXY=https://proxy.golang.org,direct set GOROOT=C:\go set GOSUMDB=sum.golang.org set GOTMPDIR= set GOTOOLDIR=C:\go\pkg\tool\windows_amd64 set GOVCS= set GOVERSION=go1.17 set GCCGO=gccgo set AR=ar set CC=gcc set CXX=g++ set CGO_ENABLED=1 set GOMOD= set CGO_CFLAGS=-g -O2 set CGO_CPPFLAGS= set CGO_CXXFLAGS=-g -O2 set CGO_FFLAGS=-g -O2 set CGO_LDFLAGS=-g -O2 set PKG_CONFIG=pkg-config set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\Users\keith\AppData\Local\Temp\go-build48417515=/tmp/go-build -gno-record-gcc-switches
What did you do?
Tried to compile a simple CGO program:
hi.go.zip
go build --race hi.go
What did you expect to see?
Hi
What did you see instead?
Some variation of:
==5192==ERROR: ThreadSanitizer failed to allocate 0x0000003d1000 (4001792) bytes at 0x200dcf9fa0000 (error code: 87)
Additional info
I'm using MinGW GCC from winlibs.com
Output of "gcc -v":
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=c:/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/11.2.0/lto-wrapper.exe
OFFLOAD_TARGET_NAMES=nvptx-none
Target: x86_64-w64-mingw32
Configured with: ../configure --prefix=/R/winlibs64_stage/inst_gcc-11.2.0/share/gcc --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 --enable-offload-targets=nvptx-
none --with-pkgversion='MinGW-W64 x86_64-posix-seh, built by Brecht Sanders' --with-tune=generic --enable-checking=release --enable-threads=posix --disable-sjlj-excepti
ons --disable-libunwind-exceptions --disable-serial-configure --disable-bootstrap --enable-host-shared --enable-plugin --disable-default-ssp --disable-rpath --enable-li
bstdcxx-pch --enable-libstdcxx-time=yes --disable-libstdcxx-debug --disable-version-specific-runtime-libs --with-stabs --disable-symvers --enable-languages=c,c++,fortra
n,lto,objc,obj-c++,d,jit --disable-gold --disable-nls --disable-stage1-checking --disable-win32-registry --disable-multilib --enable-ld --enable-libquadmath --enable-li
bada --enable-libssp --enable-libstdcxx --enable-lto --enable-fully-dynamic-string --enable-libgomp --enable-graphite --enable-mingw-wildcard --with-mpc=/d/Prog/winlibs
64_stage/custombuilt --with-mpfr=/d/Prog/winlibs64_stage/custombuilt --with-gmp=/d/Prog/winlibs64_stage/custombuilt --with-isl=/d/Prog/winlibs64_stage/custombuilt --ena
ble-install-libiberty --enable-__cxa_atexit --without-included-gettext --with-diagnostics-color=auto --enable-clocale=generic --with-libiconv --with-system-zlib --with-
build-sysroot=/R/winlibs64_stage/gcc-11.2.0/build_mingw/mingw-w64 CFLAGS=-I/d/Prog/winlibs64_stage/custombuilt/include/libdl-win32
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.2.0 (MinGW-W64 x86_64-posix-seh, built by Brecht Sanders)