Unknown error trying to run the spinner

[SamiAlsubhi]

I am just taking simplest example to test the spinner:

func main() {

	s := spinner.New(spinner.CharSets[9], 100*time.Millisecond) // Build our new spinner
	s.Start()                                                   // Start the spinner
	time.Sleep(4 * time.Second)                                 // Run for some time to simulate work
	s.Stop()

}

and I get this stack of errors, any idea what is the issue?
go version: go1.17.1 darwin/amd64

fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0xb01dfacedebac1e pc=0x7fff20458c9e]

runtime stack:
runtime: unexpected return pc for runtime.sigpanic called from 0x7fff20458c9e
stack: frame={sp:0x7ffeefbff4b8, fp:0x7ffeefbff508} stack=[0x7ffeefb80558,0x7ffeefbff5c0)
0x00007ffeefbff3b8:  0x01007ffeefbff3d8  0x0000000000000004 
0x00007ffeefbff3c8:  0x000000000000001f  0x00007fff20458c9e 
0x00007ffeefbff3d8:  0x0b01dfacedebac1e  0x0000000000000001 
0x00007ffeefbff3e8:  0x00000000040373b1 <runtime.throw+0x0000000000000071>  0x00007ffeefbff488 
0x00007ffeefbff3f8:  0x00000000043e8d38  0x00007ffeefbff440 
0x00007ffeefbff408:  0x0000000004037668 <runtime.fatalthrow.func1+0x0000000000000048>  0x00000000046033a0 
0x00007ffeefbff418:  0x0000000000000001  0x0000000000000001 
0x00007ffeefbff428:  0x00007ffeefbff488  0x00000000040373b1 <runtime.throw+0x0000000000000071> 
0x00007ffeefbff438:  0x00000000046033a0  0x00007ffeefbff478 
0x00007ffeefbff448:  0x00000000040375f0 <runtime.fatalthrow+0x0000000000000050>  0x00007ffeefbff458 
0x00007ffeefbff458:  0x0000000004037620 <runtime.fatalthrow.func1+0x0000000000000000>  0x00000000046033a0 
0x00007ffeefbff468:  0x00000000040373b1 <runtime.throw+0x0000000000000071>  0x00007ffeefbff488 
0x00007ffeefbff478:  0x00007ffeefbff4a8  0x00000000040373b1 <runtime.throw+0x0000000000000071> 
0x00007ffeefbff488:  0x00007ffeefbff490  0x00000000040373e0 <runtime.throw.func1+0x0000000000000000> 
0x00007ffeefbff498:  0x00000000043ecef6  0x000000000000002a 
0x00007ffeefbff4a8:  0x00007ffeefbff4f8  0x000000000404c9b6 <runtime.sigpanic+0x0000000000000396> 
0x00007ffeefbff4b8: <0x00000000043ecef6  0x000000000401cd05 <runtime.(*fixalloc).alloc+0x0000000000000085> 
0x00007ffeefbff4c8:  0x00007ffeefbff538  0x000000000402a4c6 <runtime.(*mheap).allocSpan+0x0000000000000546> 
0x00007ffeefbff4d8:  0x000000c00011c000  0x000000000000e000 
0x00007ffeefbff4e8:  0x000000c000000008  0x0000000004076e00 <syscall.libc_stat64_trampoline+0x0000000000000000> 
0x00007ffeefbff4f8:  0x00007ffeefbff540 !0x00007fff20458c9e 
0x00007ffeefbff508: >0x00007ffeefbff540  0x00000000045c0000 
0x00007ffeefbff518:  0x00000000000003a1  0x00000000040f82e5 <golang.org/x/sys/unix.libc_ioctl_trampoline+0x0000000000000005> 
0x00007ffeefbff528:  0x0000000004068abf <runtime.syscall+0x000000000000001f>  0x000000c000061ab8 
0x00007ffeefbff538:  0x00007ffeefbff580  0x000000c000061a88 
0x00007ffeefbff548:  0x0000000004066910 <runtime.asmcgocall+0x0000000000000070>  0x0000000000000007 
0x00007ffeefbff558:  0x000000c000027a00  0x7a000000043f8278 
0x00007ffeefbff568:  0x0000000000000010  0x000000000439b280 
0x00007ffeefbff578:  0x00000000000005a0  0x000000c0000001a0 
0x00007ffeefbff588:  0x0000000004064a29 <runtime.systemstack+0x0000000000000049>  0x0000000000000004 
0x00007ffeefbff598:  0x0000000004436d60  0x00000000046033a0 
0x00007ffeefbff5a8:  0x00007ffeefbff5f8  0x0000000004064925 <runtime.mstart+0x0000000000000005> 
0x00007ffeefbff5b8:  0x00000000040648dd <runtime.rt0_go+0x000000000000013d> 
runtime.throw({0x43ecef6, 0x401cd05})
        /usr/local/go/src/runtime/panic.go:1198 +0x71
runtime: unexpected return pc for runtime.sigpanic called from 0x7fff20458c9e
stack: frame={sp:0x7ffeefbff4b8, fp:0x7ffeefbff508} stack=[0x7ffeefb80558,0x7ffeefbff5c0)
0x00007ffeefbff3b8:  0x01007ffeefbff3d8  0x0000000000000004 
0x00007ffeefbff3c8:  0x000000000000001f  0x00007fff20458c9e 
0x00007ffeefbff3d8:  0x0b01dfacedebac1e  0x0000000000000001 
0x00007ffeefbff3e8:  0x00000000040373b1 <runtime.throw+0x0000000000000071>  0x00007ffeefbff488 
0x00007ffeefbff3f8:  0x00000000043e8d38  0x00007ffeefbff440 
0x00007ffeefbff408:  0x0000000004037668 <runtime.fatalthrow.func1+0x0000000000000048>  0x00000000046033a0 
0x00007ffeefbff418:  0x0000000000000001  0x0000000000000001 
0x00007ffeefbff428:  0x00007ffeefbff488  0x00000000040373b1 <runtime.throw+0x0000000000000071> 
0x00007ffeefbff438:  0x00000000046033a0  0x00007ffeefbff478 
0x00007ffeefbff448:  0x00000000040375f0 <runtime.fatalthrow+0x0000000000000050>  0x00007ffeefbff458 
0x00007ffeefbff458:  0x0000000004037620 <runtime.fatalthrow.func1+0x0000000000000000>  0x00000000046033a0 
0x00007ffeefbff468:  0x00000000040373b1 <runtime.throw+0x0000000000000071>  0x00007ffeefbff488 
0x00007ffeefbff478:  0x00007ffeefbff4a8  0x00000000040373b1 <runtime.throw+0x0000000000000071> 
0x00007ffeefbff488:  0x00007ffeefbff490  0x00000000040373e0 <runtime.throw.func1+0x0000000000000000> 
0x00007ffeefbff498:  0x00000000043ecef6  0x000000000000002a 
0x00007ffeefbff4a8:  0x00007ffeefbff4f8  0x000000000404c9b6 <runtime.sigpanic+0x0000000000000396> 
0x00007ffeefbff4b8: <0x00000000043ecef6  0x000000000401cd05 <runtime.(*fixalloc).alloc+0x0000000000000085> 
0x00007ffeefbff4c8:  0x00007ffeefbff538  0x000000000402a4c6 <runtime.(*mheap).allocSpan+0x0000000000000546> 
0x00007ffeefbff4d8:  0x000000c00011c000  0x000000000000e000 
0x00007ffeefbff4e8:  0x000000c000000008  0x0000000004076e00 <syscall.libc_stat64_trampoline+0x0000000000000000> 
0x00007ffeefbff4f8:  0x00007ffeefbff540 !0x00007fff20458c9e 
0x00007ffeefbff508: >0x00007ffeefbff540  0x00000000045c0000 
0x00007ffeefbff518:  0x00000000000003a1  0x00000000040f82e5 <golang.org/x/sys/unix.libc_ioctl_trampoline+0x0000000000000005> 
0x00007ffeefbff528:  0x0000000004068abf <runtime.syscall+0x000000000000001f>  0x000000c000061ab8 
0x00007ffeefbff538:  0x00007ffeefbff580  0x000000c000061a88 
0x00007ffeefbff548:  0x0000000004066910 <runtime.asmcgocall+0x0000000000000070>  0x0000000000000007 
0x00007ffeefbff558:  0x000000c000027a00  0x7a000000043f8278 
0x00007ffeefbff568:  0x0000000000000010  0x000000000439b280 
0x00007ffeefbff578:  0x00000000000005a0  0x000000c0000001a0 
0x00007ffeefbff588:  0x0000000004064a29 <runtime.systemstack+0x0000000000000049>  0x0000000000000004 
0x00007ffeefbff598:  0x0000000004436d60  0x00000000046033a0 
0x00007ffeefbff5a8:  0x00007ffeefbff5f8  0x0000000004064925 <runtime.mstart+0x0000000000000005> 
0x00007ffeefbff5b8:  0x00000000040648dd <runtime.rt0_go+0x000000000000013d> 
runtime.sigpanic()
        /usr/local/go/src/runtime/signal_unix.go:719 +0x396

goroutine 1 [syscall, locked to thread]:
syscall.syscall(0x40f82e0, 0x1, 0x40487413, 0xc000061b48)
        /usr/local/go/src/runtime/sys_darwin.go:22 +0x3b fp=0xc000061ab8 sp=0xc000061a98 pc=0x40634db
syscall.syscall(0x4071dc6, 0x4380b80, 0xc000061b70, 0x4071cf8)
        <autogenerated>:1 +0x26 fp=0xc000061b00 sp=0xc000061ab8 pc=0x4069286
golang.org/x/sys/unix.ioctl(0x43de921, 0x4, 0x1000000000000)
        /Users/sami/Desktop/golang/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:746 +0x39 fp=0xc000061b30 sp=0xc000061b00 pc=0x40f7f79
golang.org/x/sys/unix.IoctlGetTermios(...)
        /Users/sami/Desktop/golang/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/ioctl.go:63
github.com/mattn/go-isatty.IsTerminal(0x43de921)
        /Users/sami/Desktop/golang/pkg/mod/github.com/mattn/go-isatty@v0.0.12/isatty_bsd.go:10 +0x50 fp=0xc000061ba0 sp=0xc000061b30 pc=0x40f8390
github.com/fatih/color.init()
        /Users/sami/Desktop/golang/pkg/mod/github.com/fatih/color@v1.7.0/color.go:21 +0x7a fp=0xc000061bd8 sp=0xc000061ba0 pc=0x40f87fa
runtime.doInit(0x45c78c0)
        /usr/local/go/src/runtime/proc.go:6498 +0x123 fp=0xc000061d10 sp=0xc000061bd8 pc=0x4046923
runtime.doInit(0x45c84e0)
        /usr/local/go/src/runtime/proc.go:6475 +0x71 fp=0xc000061e48 sp=0xc000061d10 pc=0x4046871
runtime.doInit(0x45c79e0)
        /usr/local/go/src/runtime/proc.go:6475 +0x71 fp=0xc000061f80 sp=0xc000061e48 pc=0x4046871
runtime.main()
        /usr/local/go/src/runtime/proc.go:238 +0x1e6 fp=0xc000061fe0 sp=0xc000061f80 pc=0x4039a06
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc000061fe8 sp=0xc000061fe0 pc=0x4066c01
exit status 2

[briandowns]

I've tried this on my mac amd64 with Go 1.16 and 1.17 and am not seeing this. Is it possible to upgrade to a newer version of Go and test again? Curious why there are references to "golang.org/x/sys/unix" in there.

[theckman]

@briandowns may be because this project's go.mod requires github.com/mattn/go-isatty, which in turn requires golang.org/x/sys/unix.

[theckman]

@SamiAlsubhi what version of macOS is this running against? Is it an Intel or ARM (M1) Mac? Does the same happen on the latest Go release (1.17.8)?

[briandowns]

He stated go1.17.1 darwin/amd64 and I've asked him to upgrade and try again.

[theckman]

Ah I missed the Go version there. 👍 MacOS version can also be a factor, so it could be helpful to know that too. I have a few Mac's laying around I could maybe test with (depending on the OS version).

[BenitoEck]

Can't reproduce on macOS Tahoe 26.0.1 (25A362) and go1.25.2 darwin/arm64. Used it with prior versions of macOS and Go on the same M4 for some time and had no issues. I think this old issue can be closed now.