affected/package: sync

[dumbFeng]

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

Go1.17

Does this issue reproduce with the latest release?

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

go env Output

GO111MODULE="auto"
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/admin/Library/Caches/go-build"
GOENV="/Users/admin/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/admin/go/pkg/mod"
GOOS="darwin"
GOPATH="/Users/admin/go"
GOPROXY="https://goproxy.io,direct"
GOROOT="/usr/local/Cellar/go/1.17.8/libexec"
GOSUMDB="off"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.17.8/libexec/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.17.8"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="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 -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/jy/nw8ct9y52lzd00_fchgbgbfh0000gn/T/go-build877044505=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

grpc 1.45.0 was used.

What did you expect to see?

No panic

What did you see instead?

A panic occurred:

fatal error: sync: inconsistent mutex state

goroutine 4312 [running]:
runtime.throw({0x310db78, 0x11270fc0952719})
	/usr/local/go/src/runtime/panic.go:1198 +0x71 fp=0xc00afcfba8 sp=0xc00afcfb78 pc=0x436ef1
sync.throw({0x310db78, 0x164d000001c0})
	/usr/local/go/src/runtime/panic.go:1184 +0x1e fp=0xc00afcfbc8 sp=0xc00afcfba8 pc=0x46621e
sync.(*Mutex).lockSlow(0x539af80)
	/usr/local/go/src/sync/mutex.go:125 +0xe5 fp=0xc00afcfc18 sp=0xc00afcfbc8 pc=0x475845
sync.(*Mutex).Lock(...)
	/usr/local/go/src/sync/mutex.go:81
sync.(*Pool).pinSlow(0xc00b69bb30)
	/usr/local/go/src/sync/pool.go:213 +0x7f fp=0xc00afcfcb0 sp=0xc00afcfc18 pc=0x47621f
sync.(*Pool).pin(0xc00b69bb30)
	/usr/local/go/src/sync/pool.go:206 +0x4e fp=0xc00afcfcc8 sp=0xc00afcfcb0 pc=0x47616e
sync.(*Pool).Get(0xc00b69bb30)
	/usr/local/go/src/sync/pool.go:128 +0x25 fp=0xc00afcfd00 sp=0xc00afcfcc8 pc=0x475ea5
google.golang.org/grpc/internal/transport.(*bufferPool).get(...)
	/go/pkg/mod/google.golang.org/[email protected]/internal/transport/transport.go:62
google.golang.org/grpc/internal/transport.(*http2Client).handleData(0xc00b6f2000, 0xc00b69ba70)
	/go/pkg/mod/google.golang.org/[email protected]/internal/transport/http2_client.go:1077 +0x2fc fp=0xc00afcfdc8 sp=0xc00afcfd00 pc=0x82115c
google.golang.org/grpc/internal/transport.(*http2Client).reader(0xc00b6f2000)
	/go/pkg/mod/google.golang.org/[email protected]/internal/transport/http2_client.go:1534 +0x91c fp=0xc00afcffc8 sp=0xc00afcfdc8 pc=0x82515c
google.golang.org/grpc/internal/transport.newHTTP2Client·dwrap·7()
	/go/pkg/mod/google.golang.org/[email protected]/internal/transport/http2_client.go:364 +0x26 fp=0xc00afcffe0 sp=0xc00afcffc8 pc=0x81b0e6
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc00afcffe8 sp=0xc00afcffe0 pc=0x46b6e1
created by google.golang.org/grpc/internal/transport.newHTTP2Client
	/go/pkg/mod/google.golang.org/[email protected]/internal/transport/http2_client.go:364 +0x192f

[seankhliao]

Without a way to reproduce the issue, this issue is inactionable.
Also, please try to run it under the race detector.

[dumbFeng]

OK, thank you !

[mvdan]

Closing for now. Also see https://golang.org/wiki/Questions.