ghostty stays resident after a failed memory allocation but refuses to open additional windows

[JakePi3]

Issue Description

I was running opencode via ghostty with a large AI model loaded up into ollama. The model took up nearly all of my VRAM. As a result, I believe ghostty failed to allocate memory (see logs). It was left running in a zombie state but unable to allocate new windows.

 NVIDIA-SMI 590.48.01              Driver Version: 590.48.01      CUDA Version: 13.1

Expected Behavior

Ideally process would recover once memory became available again, but since state might be non-deterministic an exit or crash would also be preferable.

Actual Behavior

Attempting to run ghostty would just result in no action.
When run from another terminal, it would give some normal startup diagnostics but no new window would open. No crash log.

It was possible to start a new window by passing --config-default-files as a flag.

Once the original ghostty process (run with default --gtk-single-instance=true flag) was killed, operation returned to normal.

Reproduction Steps

1 Run any process that fills up 99% of VRAM (e.g. ollama with a large enough model loaded)
2 Open Ghostty

It might be easier to just cause the allocation to fail programatically to see if this could be reproduced.

Ghostty Logs

# These are system logs (relevant for this issue)
# The last message is included due to abnormally high memory peak but may not be associated with the original launch.

Feb 03 15:54:24 rocket systemd[2633]: Started ghostty.
Feb 03 15:54:24 rocket kernel: [drm:nv_drm_gem_alloc_nvkms_memory_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate NVKMS memory for GEM object
...
Feb 03 17:29:13 rocket systemd[2633]: app-ghostty-transient-158045.scope: Consumed 13.108s CPU time over 6min 4.621s wall clock time, 7.2G memory peak.

Ghostty Version

Ghostty 1.2.3-arch2

Version
  - version: 1.2.3-arch2
  - channel: tip
Build Config
  - Zig version   : 0.14.1
  - build mode    : builtin.OptimizeMode.ReleaseFast
  - app runtime   : apprt.Runtime.gtk
  - font engine   : font.main.Backend.fontconfig_freetype
  - renderer      : renderer.generic.Renderer(renderer.OpenGL)
  - libxev        : io_uring
  - kernel version: 6.18.3-arch1-1
  - desktop env   : other
  - GTK version   :
    build         : 4.20.2
    runtime       : 4.20.3
  - libadwaita    : enabled
    build         : 1.8.1
    runtime       : 1.8.3
  - libX11        : enabled
  - libwayland    : enabled

OS Version Information

Omarchy 3.3.3 Stable

(Linux only) Display Server

Wayland

(Linux only) Desktop Environment/Window Manager

hyprland 0.53.1

Minimal Ghostty Configuration

gtk-single-instance=true

Additional Relevant Configuration

No response

I acknowledge that:

• I have reviewed the FAQ and confirm that my issue is NOT among them.
• I have searched the Ghostty repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
• I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (```) on separate lines.