runtime: goroutine stack exceeds 1000000000-byte limit

[OneOfOne]

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

$ go version
go version devel +1c5bd3459b 2019-11-22 16:04:32 +0000 linux/amd64

Does this issue reproduce with the latest release?

No, just tip as of ~ 2 weeks ago.

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

go env Output

$ go env
GO111MODULE="off"
GOARCH="amd64"
GOBIN="/home/oneofone/code/go/bin"
GOCACHE="/tmp/.gocache"
GOENV="/home/oneofone/.config/go/env"
GOEXE=""
GOFLAGS="-gcflags=-c=16"
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/oneofone/code/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/src/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/src/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
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 -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build130861294=/tmp/go-build -gno-record-gcc-switches"
GOROOT/bin/go version: go version devel +1c5bd3459b 2019-11-22 16:04:32 +0000 linux/amd64
GOROOT/bin/go tool compile -V: compile version devel +1c5bd3459b 2019-11-22 16:04:32 +0000
uname -sr: Linux 5.3.12-arch1-1
LSB Version:	1.4
Distributor ID:	Arch
Description:	Arch Linux
Release:	rolling
Codename:	n/a
/usr/lib/libc.so.6: GNU C Library (GNU libc) stable release version 2.30.
lldb --version: lldb version 9.0.0
gdb --version: GNU gdb (GDB) 8.3.1

What did you do?

func flyGziper(r io.Reader) io.ReadCloser {
	pr, pw := io.Pipe()
	go func() {
		gw, _ := gzip.NewWriterLevel(pw, gzip.BestCompression) // only error is returned if level is wrong
		if _, err := io.Copy(gw, r); err != nil {
			pw.CloseWithError(err)
		} else {
			pw.CloseWithError(gw.Close())
		}

	}()
	return pr
}

What did you expect to see?

No crash, this code haven't changed in probably over 2 years and it doesn't use any unsafe code.

What did you see instead?

runtime: goroutine stack exceeds 1000000000-byte limit
fatal error: stack overflow

runtime stack:
runtime.throw(0x109e801, 0xe)
        /usr/src/go/src/runtime/panic.go:1106 +0x72
runtime.newstack()
        /usr/src/go/src/runtime/stack.go:1033 +0x60c
runtime.morestack()
        /usr/src/go/src/runtime/asm_amd64.s:449 +0x8f

goroutine 10390 [running]:
compress/flate.(*compressor).findMatch(0xc014ad8000, 0x8a5e, 0x8a22, 0x3, 0x75a2, 0x63, 0x31c2, 0x8001)
        /usr/src/go/src/compress/flate/deflate.go:233 +0x381 fp=0xc09c7fbde8 sp=0xc09c7fbde0 pc=0x6ad521
compress/flate.(*compressor).deflate(0xc014ad8000)
        /usr/src/go/src/compress/flate/deflate.go:443 +0x7d9 fp=0xc09c7fbe58 sp=0xc09c7fbde8 pc=0x6ae279
compress/flate.(*compressor).write(0xc014ad8000, 0xc0081b8000, 0x8000, 0x8000, 0x8000, 0xcac6dc23, 0x0)
        /usr/src/go/src/compress/flate/deflate.go:554 +0x83 fp=0xc09c7fbe98 sp=0xc09c7fbe58 pc=0x6ae793
compress/flate.(*Writer).Write(...)
        /usr/src/go/src/compress/flate/deflate.go:712
compress/gzip.(*Writer).Write(0xc001e34000, 0xc0081b8000, 0x8000, 0x8000, 0x8000, 0x0, 0x0)
        /usr/src/go/src/compress/gzip/gzip.go:196 +0xc1 fp=0xc09c7fbee8 sp=0xc09c7fbe98 pc=0x6bb341
io.copyBuffer(0x12f64c0, 0xc001e34000, 0x7f262477d4d0, 0xc002df6180, 0xc0081b8000, 0x8000, 0x8000, 0xc050ea5180, 0xc050ea51d0, 0xc050ea5220)
        /usr/src/go/src/io/io.go:407 +0x1fb fp=0xc09c7fbf60 sp=0xc09c7fbee8 pc=0x47584b
io.Copy(...)
        /usr/src/go/src/io/io.go:364
*trimmed*/archiver.flyGziper.func1(0xc036022088, 0x7f262477d4d0, 0xc002df6180)
        /home/oneofone/code/go/src/*trimmed*/archiver/utils.go:185 +0x88 fp=0xc09c7fbfc8 sp=0xc09c7fbf60 pc=0xa26208
runtime.goexit()
        /usr/src/go/src/runtime/asm_amd64.s:1375 +0x1 fp=0xc09c7fbfd0 sp=0xc09c7fbfc8 pc=0x467861
created by *trimmed*/archiver.flyGziper
        /home/oneofone/code/go/src/*trimmed*/archiver/utils.go:183 +0x152

[OneOfOne]

I can't reproduce reliably, sometimes after 1 hour, sometimes takes 20+ hours, could be related to #35777.

[randall77]

This is clearly not a real stack overflow, so yes it looks like something corrupting the stack bound. That could be #35777. Are you on a 5.3 kernel?

[OneOfOne]

Yep, 5.3.12-arch1-1 to be specific.

[ianlancetaylor]

See also #35470.

[toothrot]

Marking this as Go1.14 to be consistent with #35470, please correct me if I am mistaken @ianlancetaylor @cherrymui

[cherrymui]

Closing as #35470 is closed. If this turns out to be different, we can reopen.