wails: fatal error: non-Go code set up signal handler without SA_ONSTACK flag

Description

First off, I’m not sure if this is a bug in Wails. It could totally be in my own app! However, I’m not using cgo in my code or my go.mod dependencies (edit: except for sqlite, but that’s not new – and I’ve never seen this before until using Wails).

This is a similar to https://github.com/wailsapp/wails/issues/1570, but I’m not using gRPC at all.

My program was running under wails dev, and while I wasn’t interacting with it, it crashed:

signal 11 received but handler not on signal stack
fatal error: non-Go code set up signal handler without SA_ONSTACK flag

runtime stack:
runtime.throw({0x2330cad?, 0xc00009c000?})
        /usr/local/go/src/runtime/panic.go:1047 +0x5d fp=0xc000763618 sp=0xc0007635e8 pc=0x44dbfd
runtime.sigNotOnStack(0xb)
        /usr/local/go/src/runtime/signal_unix.go:1020 +0x65 fp=0xc000763638 sp=0xc000763618 pc=0x465305
runtime.adjustSignalStack(0xb, 0xc000780000, 0xc?)
        /usr/local/go/src/runtime/signal_unix.go:581 +0x156 fp=0xc000763698 sp=0xc000763638 pc=0x464156
runtime.sigtrampgo(0xb, 0xc0007639b0, 0xc000763880)
        /usr/local/go/src/runtime/signal_unix.go:469 +0x13b fp=0xc000763710 sp=0xc000763698 pc=0x463e3b
runtime.sigtramp()
        /usr/local/go/src/runtime/sys_linux_amd64.s:359 +0x46 fp=0xc000763760 sp=0xc000763710 pc=0x484b46

goroutine 17 [syscall, locked to thread]:
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0000aafe8 sp=0xc0000aafe0 pc=0x482ea1

goroutine 1 [syscall, 7 minutes, locked to thread]:
runtime.cgocall(0x1f2b240, 0xc0006b5b08)
        /usr/local/go/src/runtime/cgocall.go:158 +0x5c fp=0xc0006b5ae0 sp=0xc0006b5aa8 pc=0x41149c
github.com/wailsapp/wails/v2/internal/frontend/desktop/linux._Cfunc_gtk_main()
        _cgo_gotypes.go:1068 +0x45 fp=0xc0006b5b08 sp=0xc0006b5ae0 pc=0xd21f65
github.com/wailsapp/wails/v2/internal/frontend/desktop/linux.(*Frontend).RunMainLoop(0xc000b89c80)
        /home/matt/go/pkg/mod/github.com/wailsapp/wails/v2@v2.2.0/internal/frontend/desktop/linux/frontend.go:57 +0x1c fp=0xc0006b5b18 sp=0xc0006b5b08 pc=0xd2499c
github.com/wailsapp/wails/v2/internal/frontend/devserver.(*DevWebServer).RunMainLoop(0xc000187ef0)
        <autogenerated>:1 +0x34 fp=0xc0006b5b30 sp=0xc0006b5b18 pc=0xe03514
github.com/wailsapp/wails/v2/internal/app.(*App).Run(0xc000586780)
        /home/matt/go/pkg/mod/github.com/wailsapp/wails/v2@v2.2.0/internal/app/app_dev.go:30 +0x72 fp=0xc0006b5b98 sp=0xc0006b5b30 pc=0xe0ddf2
github.com/wailsapp/wails/v2/pkg/application.(*Application).Run(0xc00028dbc0)
        /home/matt/go/pkg/mod/github.com/wailsapp/wails/v2@v2.2.0/pkg/application/application.go:69 +0x169 fp=0xc0006b5c10 sp=0xc0006b5b98 pc=0xe10bc9
github.com/wailsapp/wails/v2.Run(0xc000164d80)
        /home/matt/go/pkg/mod/github.com/wailsapp/wails/v2@v2.2.0/wails.go:14 +0x33 fp=0xc0006b5c50 sp=0xc0006b5c10 pc=0xe10d53
.
.
.

Full stack trace is 700 lines. Let me know if you want me to provide it.

When this happened, my program did stop, but the CLI command kept running. I had to send it a signal to stop wails dev:

^C
Caught quit
Development mode exited

If Wails is useful to you or your company, please consider sponsoring the project:
https://github.com/sponsors/leaanthony

To Reproduce

Sadly, I don’t know how to reproduce this. It has only happened this one time, and it is not the first time I have run these exact same functions on the exact same inputs. If it happens again I will let you know…

UPDATE: Put this right inside main():

go func() {
	time.Sleep(5 * time.Second)
	var t *time.Time
	log.Println(t.Unix())
}()

Expected behaviour

Not crash 😃

Screenshots

No response

Attempted Fixes

No response

System Details

$ wails doctor
Wails CLI v2.2.0

Scanning system - Please wait (this may take a long time)...Done.

System
------
OS:             Pop!_OS
Version:        22.04
ID:             pop
Go Version:     go1.19.1
Platform:       linux
Architecture:   amd64

Wails
------
Version:                v2.2.0
Package Manager:        apt

Dependency      Package Name            Status          Version
----------      ------------            ------          -------
*docker         docker.io               Available       20.10.12-0ubuntu4
gcc             build-essential         Installed       11.3.0
libgtk-3        libgtk-3-dev            Installed       3.24.33-1ubuntu2
libwebkit       libwebkit2gtk-4.0-dev   Installed       2.38.2-0ubuntu0.22.04.2
npm             npm                     Installed       8.5.1~ds-1
*nsis           nsis                    Available       3.08-2
pkg-config      pkg-config              Installed       0.29.2

* - Optional Dependency

Diagnosis
---------
Your system is ready for Wails development!
Optional package(s) installation details: 
  - docker: sudo apt install docker.io
  - nsis: sudo apt install nsis



If Wails is useful to you or your company, please consider sponsoring the project:
https://github.com/sponsors/leaanthony

Additional context

Sorry this isn’t the most helpful report. Let me know if you need more info!