[PROTON-2295] [go] Go 1.15.3 failure in macOS CI; panic: can't call pointer on a non-pointer Value

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: proton-c-0.33.0
• Component/s: go-binding
• Labels: macOS
• Flags: Patch
• Assignee: Jiri Daněk
• Reporter: Jiri Daněk
• Created: 10/Nov/20 12:00
• Updated: 25/Nov/20 15:41
• Resolved: 12/Nov/20 11:49

Description

https://github.com/apache/qpid-proton/runs/1360866596#step:13:2474

28: goroutine 9 [running]:
28: reflect.Value.pointer(...)
28: 	/usr/local/Cellar/go/1.15.3/libexec/src/reflect/value.go:95
28: reflect.Value.Pointer(0x4165a00, 0x4f054b0, 0x16, 0xb)
28: 	/usr/local/Cellar/go/1.15.3/libexec/src/reflect/value.go:1456 +0x1b6
28: fmt.(*pp).fmtPointer(0xc0000731e0, 0x4165a00, 0x4f054b0, 0x16, 0x70)
28: 	/usr/local/Cellar/go/1.15.3/libexec/src/fmt/print.go:506 +0x65
28: fmt.(*pp).printArg(0xc0000731e0, 0x4165a00, 0x4f054b0, 0xc000000070)
28: 	/usr/local/Cellar/go/1.15.3/libexec/src/fmt/print.go:659 +0x168
28: fmt.(*pp).doPrintf(0xc0000731e0, 0x41a591c, 0xd, 0xc000223df0, 0x1, 0x1)
28: 	/usr/local/Cellar/go/1.15.3/libexec/src/fmt/print.go:1030 +0x168
28: fmt.Sprintf(0x41a591c, 0xd, 0xc000223df0, 0x1, 0x1, 0x4f054b0, 0x0)
28: 	/usr/local/Cellar/go/1.15.3/libexec/src/fmt/print.go:219 +0x66
28: github.com/apache/qpid-proton/go/pkg/proton.Session.String(...)
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/proton/wrappers.go:369
28: github.com/apache/qpid-proton/go/pkg/electron.newSession(0xc00011a000, 0x4f054b0, 0x0, 0x0, 0x0, 0xc000223f00)
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/electron/session.go:64 +0xac
28: github.com/apache/qpid-proton/go/pkg/electron.(*connection).Session.func1(0x2, 0x2)
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/electron/connection.go:272 +0x1bf
28: github.com/apache/qpid-proton/go/pkg/proton.(*Engine).InjectWait.func1()
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/proton/engine.go:208 +0x32
28: github.com/apache/qpid-proton/go/pkg/proton.(*Engine).Run(0xc00010a120, 0x0, 0x0)
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/proton/engine.go:376 +0x19a
28: github.com/apache/qpid-proton/go/pkg/electron.(*connection).run(0xc00011a000)
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/electron/connection.go:241 +0x3f
28: created by github.com/apache/qpid-proton/go/pkg/electron.NewConnection
28: 	/Users/runner/work/qpid-proton/qpid-proton/BLD/go/pkg/electron/connection.go:224 +0x405
28: panic: can't call pointer on a non-pointer Value

This appears to be a bug in Go 1.15.3; versions 1.15.2 and 1.15.4 do not exhibit this failure. https://github.com/golang/go/issues/42032