go test hangs

[rjkroege]

On Go 1.14.5 on MacOS Catalina 10.5.6, go test hangs. Fix this?

[rjkroege]

TestXCmdPipeMultipleWindows hangs.

[rjkroege]

Timeout spew:

=== RUN   TestXCmdPipeMultipleWindows
panic: test timed out after 10m0s

goroutine 15 [running]:
testing.(*M).startAlarm.func1()
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:1459 +0xdf
created by time.goFunc
	/usr/local/Cellar/go/1.14.5/libexec/src/time/sleep.go:168 +0x44

goroutine 1 [chan receive]:
testing.(*T).Run(0xc00022b9e0, 0x15c6c83, 0x1b, 0x15e0c00, 0x10c2201)
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:1043 +0x37e
testing.runTests.func1(0xc000200000)
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:1284 +0x78
testing.tRunner(0xc000200000, 0xc000185de0)
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:991 +0xdc
testing.runTests(0xc000126160, 0x1a11b20, 0x84, 0x84, 0x0)
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:1282 +0x2a7
testing.(*M).Run(0xc00011e100, 0x0)
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:1199 +0x15f
github.com/rjkroege/edwood.TestMain(0xc00011e100)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/fsys_test.go:58 +0x7f
main.main()
	_testmain.go:304 +0x135

goroutine 70 [chan receive]:
github.com/rjkroege/edwood.runpipe(0xc000100520, 0xc00000007c, 0xc000076be8, 0x3, 0x20, 0x1)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/ecmd.go:504 +0x2b2
github.com/rjkroege/edwood.pipe_cmd(0xc000100520, 0xc00012a7d0, 0x0)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/ecmd.go:531 +0x9e
github.com/rjkroege/edwood.cmdexec(0xc000100520, 0xc00012a7d0, 0x0)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/ecmd.go:109 +0x399
github.com/rjkroege/edwood.filelooper(0x0, 0xc00012a780, 0xc00012a701)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/ecmd.go:843 +0x162
github.com/rjkroege/edwood.X_cmd(...)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/ecmd.go:462
github.com/rjkroege/edwood.TestXCmdPipeMultipleWindows(0xc00022b9e0)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/ecmd_test.go:63 +0x3d5
testing.tRunner(0xc00022b9e0, 0x15e0c00)
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:991 +0xdc
created by testing.(*T).Run
	/usr/local/Cellar/go/1.14.5/libexec/src/testing/testing.go:1042 +0x357

goroutine 72 [chan send]:
github.com/rjkroege/edwood.runwaittask(0xc00010f200, 0xc00022ccc0)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/exec.go:819 +0xb7
created by github.com/rjkroege/edwood.run
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/exec.go:652 +0x172

goroutine 14 [chan send]:
github.com/rjkroege/edwood.runproc.func4(0xc0000d8580, 0xc00000e4e0)
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/exec.go:1012 +0x6c
created by github.com/rjkroege/edwood.runproc
	/Users/rjkroege/tools/gopkg/src/github.com/rjkroege/edwood/exec.go:1009 +0x87a
exit status 2
FAIL	github.com/rjkroege/edwood	600.443s

Conceivably this is a notarization / quarantine / process namespace issue on modern MacOS. Presumably it will be worse under Big Sur.

[rjkroege]

This seems to be happening on Ubuntu and MacOS on the builders. Presumably we have a race condition. Sigh.

[rjkroege]

Related to #291 in some fashion.

[paul-lalonde]

Are we going to fix it, or will we temporarily disable this test until it gets fixed (magical thinking)?

[rjkroege]

I was going to get around to it. 😀 But after some preliminary investigation,
I realized that it would need some considerable time to dive in and I just
never seemed to have a whole day to do nothing but think about thread
ordering issues.

You're right: probably I should just disable for the present.