if debugConsole enabled and terminal output is slow, booting fails

[dariaphoebe]

I'm using qemu to emulate an aarch64 machine on an M4 mac, because nested virtualization doesn't yet work to host wsl2 on windows. If I enable debugConsole, the VM times out while booting. Otherwise, it works fine. I suspect that the VM Idle Time is triggering because the terminal output rendering is sufficiently slow that the guest looks unresponsive. No logs as yet because I'm not well set up to collect them, but, in case someone else hit this I figured I should share.

[OneBlue]

Hmm that's most likely because the default hvsocket timeout is set to 30 seconds during boot, and the if the debug console delays it for longer than that, we'll consider that the VM failed to boot.

You can try adding this to %USERPROFILE%/.wslconfig (milliseconds):

[wsl2]
kernelBootTimeout=180000

This will increase the timeout to 3 minutes, which should hopefully allow you to complete booting in time