crashes on http.ListenAndServe (during accepting new connections)

[MichaelRoosz]

Version: 0.11.0

Crashes for me every few hours during the ListenAndServe call, seem like when trying to accept new incoming connections

runtime: checkdead: find g 491671 in status 1
fatal error: checkdead: runnable g
runtime stack:
runtime.throw(0x9f811e, 0x15)
/usr/local/go/src/runtime/panic.go:1116 +0x72
runtime.checkdead()
/usr/local/go/src/runtime/proc.go:4407 +0x390
runtime.mput(...)
/usr/local/go/src/runtime/proc.go:4824
runtime.stopm()
/usr/local/go/src/runtime/proc.go:1832 +0x95
runtime.exitsyscall0(0xc000001500)
/usr/local/go/src/runtime/proc.go:3268 +0x111
runtime.mcall(0x0)
/usr/local/go/src/runtime/asm_amd64.s:318 +0x5b
goroutine 1 [IO wait, 25002 minutes]:
internal/poll.runtime_pollWait(0x7fb060191f18, 0x72, 0x0)
/usr/local/go/src/runtime/netpoll.go:203 +0x55
internal/poll.(*pollDesc).wait(0xc0000b8918, 0x72, 0x0, 0x0, 0x9ef93b)
/usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45
internal/poll.(*pollDesc).waitRead(...)
/usr/local/go/src/internal/poll/fd_poll_runtime.go:92
internal/poll.(*FD).Accept(0xc0000b8900, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/go/src/internal/poll/fd_unix.go:384 +0x1d4
net.(*netFD).accept(0xc0000b8900, 0xf0146b39697dc950, 0x1000000000000, 0xf0146b39697dc950)
/usr/local/go/src/net/fd_unix.go:238 +0x42
net.(*TCPListener).accept(0xc000130ac0, 0x5fb30338, 0xc00004bb60, 0x4cf116)
/usr/local/go/src/net/tcpsock_posix.go:139 +0x32
net.(*TCPListener).Accept(0xc000130ac0, 0xc00004bbb0, 0x18, 0xc000000180, 0x6c79fc)
/usr/local/go/src/net/tcpsock.go:261 +0x64
net/http.(*Server).Serve(0xc00014a000, 0xaba1a0, 0xc000130ac0, 0x0, 0x0)
/usr/local/go/src/net/http/server.go:2901 +0x25d
net/http.(*Server).ListenAndServe(0xc00014a000, 0xc00014a000, 0x1)
/usr/local/go/src/net/http/server.go:2830 +0xb7
net/http.ListenAndServe(...)
/usr/local/go/src/net/http/server.go:3086
main.main()
/app/haproxy_exporter.go:616 +0x1788
goroutine 491668 [IO wait, 1 minutes]:
internal/poll.runtime_pollWait(0x7fb060191e38, 0x72, 0xffffffffffffffff)
/usr/local/go/src/runtime/netpoll.go:203 +0x55
internal/poll.(*pollDesc).wait(0xc0006b1298, 0x72, 0x0, 0x1, 0xffffffffffffffff)
/usr/local/go/src/internal/poll/fd_poll_runtime.go:87 +0x45

[grobie]

Hey @MichaelRoosz, thank you for the report!

From what I could find, this appears to be the result of a bug in the go runtime. I'll look into releasing a new version built with a newer version of Go.

Can you reproduce this issue reliably?

[grobie]

I released v0.12.0 compiled using a newer version of Go. Please try that and reopen this issue if you still experience this kind of panic.