failed to create new OS thread (have 2 already; errno=22)

[KurtStam]

I'm trying to run the following code:

package main

import "fmt"

func main() {  
    fmt.Println("Hello, world!")
}

# GOARCH=arm go build ./hello.go
# qemu-arm-static ./hello 

Which works with v2.7 and older.

/tmp/qemu-arm-static2.7 ./hello
Hello, world!

However, on v2.8 and newer I'm seeing

/tmp/qemu-arm-static2.8.0 ./hello
runtime: failed to create new OS thread (have 2 already; errno=22)
fatal error: newosproc

runtime stack:
runtime.throw(0xf6458, 0x9)
	/usr/lib/golang/src/runtime/panic.go:547 +0x78
runtime.newosproc(0x10328000, 0x10337fe0)
	/usr/lib/golang/src/runtime/os1_linux.go:149 +0x180
runtime.newm(0x1103fc, 0x0)
	/usr/lib/golang/src/runtime/proc.go:1516 +0x12c
runtime.main.func1()
	/usr/lib/golang/src/runtime/proc.go:125 +0x24
runtime.systemstack(0x155e00)
	/usr/lib/golang/src/runtime/asm_arm.s:247 +0x80
runtime.mstart()
	/usr/lib/golang/src/runtime/proc.go:1051

goroutine 1 [running]:
runtime.systemstack_switch()
	/usr/lib/golang/src/runtime/asm_arm.s:192 +0x4 fp=0x103247ac sp=0x103247a8
runtime.main()
	/usr/lib/golang/src/runtime/proc.go:126 +0x5c fp=0x103247d4 sp=0x103247ac
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_arm.s:990 +0x4 fp=0x103247d4 sp=0x103247d4

I'm running on go version
go version go1.6.3 linux/amd64

on centos 7.3.1611

[legacycode]

Hi, we do have the exact same error on our project at openhab/openhab-docker#90. This issue started about 29 days ago. You can view our build log at https://travis-ci.org/openhab/openhab-docker/builds

The error message is the same as above

runtime: failed to create new OS thread (have 2 already; errno=22)

fatal error: newosproc

runtime stack:

runtime.throw(0xda35e, 0x9)

	/usr/local/go/src/runtime/panic.go:566 +0x78

runtime.newosproc(0x10422000, 0x10431fe0)

	/usr/local/go/src/runtime/os_linux.go:160 +0x1b0

runtime.newm(0xe77b4, 0x0)

	/usr/local/go/src/runtime/proc.go:1572 +0x12c

runtime.main.func1()

	/usr/local/go/src/runtime/proc.go:126 +0x24

runtime.systemstack(0x133900)

	/usr/local/go/src/runtime/asm_arm.s:247 +0x80

runtime.mstart()

	/usr/local/go/src/runtime/proc.go:1079

goroutine 1 [running]:

runtime.systemstack_switch()

	/usr/local/go/src/runtime/asm_arm.s:192 +0x4 fp=0x1041c7ac sp=0x1041c7a8

runtime.main()

	/usr/local/go/src/runtime/proc.go:127 +0x5c fp=0x1041c7d4 sp=0x1041c7ac

runtime.goexit()

	/usr/local/go/src/runtime/asm_arm.s:998 +0x4 fp=0x1041c7d4 sp=0x1041c7d4

You can find the full broken build at: https://travis-ci.org/openhab/openhab-docker/jobs/239208416

It would be very nice, if you could fix this issue :-)

[moul]

@KurtStam, @legacycode: can you give a new try ?

[legacycode]

@moul: For me the problem still exists. Pls refer to:

https://travis-ci.org/openhab/openhab-docker/jobs/240616622

with image build 16 hours ago:

https://hub.docker.com/r/multiarch/qemu-user-static/tags/

[lafin]

@legacycode how long time do you have this issue? I met similar problem during build the go binaries on arm architectures after qemu 2.8 release.

[legacycode]

@lafin i am not really sure, when this issue started. In our build history i can see the beginning of error messages 28 days ago. Please refer to:

https://travis-ci.org/openhab/openhab-docker/builds

[KurtStam]

@moul, I'm also still seeing the issue:

/tmp/qemu-arm-static2.9.1 hello
runtime: failed to create new OS thread (have 2 already; errno=22)
fatal error: newosproc

runtime stack:
runtime.throw(0xf6458, 0x9)
/usr/lib/golang/src/runtime/panic.go:547 +0x78
runtime.newosproc(0x10328000, 0x10337fe0)
/usr/lib/golang/src/runtime/os1_linux.go:149 +0x180
runtime.newm(0x1103fc, 0x0)
/usr/lib/golang/src/runtime/proc.go:1516 +0x12c
runtime.main.func1()
/usr/lib/golang/src/runtime/proc.go:125 +0x24
runtime.systemstack(0x155e00)
/usr/lib/golang/src/runtime/asm_arm.s:247 +0x80
runtime.mstart()
/usr/lib/golang/src/runtime/proc.go:1051

goroutine 1 [running]:
runtime.systemstack_switch()
/usr/lib/golang/src/runtime/asm_arm.s:192 +0x4 fp=0x103247ac sp=0x103247a8
runtime.main()
/usr/lib/golang/src/runtime/proc.go:126 +0x5c fp=0x103247d4 sp=0x103247ac
runtime.goexit()
/usr/lib/golang/src/runtime/asm_arm.s:990 +0x4 fp=0x103247d4 sp=0x103247d4

Like I said above it seems to have been introduced with version 2.8.