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go/src /sync/: Release lock behavior varies across different operating systems. #70796

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Sudingyi opened this issue Dec 12, 2024 · 3 comments
Closed

go/src /sync/: Release lock behavior varies across different operating systems. #70796

Sudingyi opened this issue Dec 12, 2024 · 3 comments

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@Sudingyi
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Go version

go version go1.21.4 linux/arm64

Output of go env in your module/workspace:

GO111MODULE='on'
GOARCH='arm64'
GOBIN=''
GOCACHE='/home/parallels/.cache/go-build'
GOENV='/home/parallels/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='arm64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/home/parallels/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/parallels/go'
GOPRIVATE=''
GOPROXY='https://goproxy.io,direct'
GOROOT='/opt/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/opt/go/pkg/tool/linux_arm64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/home/parallels/zhangyaru/GBproxy/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build4139936400=/tmp/go-build -gno-record-gcc-switches'

What did you do?

defer b.lock.Unlock()
Put the current statement inside a for loop.like
for ...{ .... if if b.lock.TryLock() { defer b.lock.Unlock() ... } }

What did you see happen?

Put the current statement inside a for loop so that the lock is released without exiting the function.
The same statement behaves as not releasing the lock on both Windows and other Linux.

What did you expect to see?

Does not release the lock.
@seankhliao
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seankhliao commented Dec 12, 2024 •
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it seems to me you are most likely misusing locks.

Unlike many projects, the Go project does not use GitHub Issues for general discussion or asking questions. GitHub Issues are used for tracking bugs and proposals only.

For questions please refer to https://github.com/golang/go/wiki/Questions

@seankhliao seankhliao closed this as not planned Won't fix, can't repro, duplicate, stale Dec 12, 2024
@Sudingyi
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Okay.However, the same code behaves inconsistently across two different systems.

@ianlancetaylor
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This seems like a good question to raise on a forum. See https://go.dev/wiki/Questions.

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3 participants
@ianlancetaylor @seankhliao @Sudingyi