From 28110c3e858244e3e45585f8c2fd6250898213ac Mon Sep 17 00:00:00 2001
From: Colin <colin@uninsane.org>
Date: Fri, 5 Apr 2024 04:42:33 +0000
Subject: [PATCH] fix system hang during vim ctrl+z (disable io_uring in libuv)

---
 hosts/common/hardware/default.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hosts/common/hardware/default.nix b/hosts/common/hardware/default.nix
index 1b2ac8d1..ce765c8b 100644
--- a/hosts/common/hardware/default.nix
+++ b/hosts/common/hardware/default.nix
@@ -35,6 +35,16 @@
   # servo needs zfs though, which doesn't support every kernel.
   boot.kernelPackages = lib.mkDefault pkgs.zfs.latestCompatibleLinuxPackages;
 
+  # TODO: remove after linux 6.9. see: <https://github.com/axboe/liburing/issues/1113>
+  # - <https://github.com/neovim/neovim/issues/28149>
+  # - <https://git.kernel.dk/cgit/linux/commit/?h=io_uring-6.9&id=e5444baa42e545bb929ba56c497e7f3c73634099>
+  # when removing, try starting and suspending (ctrl+z) two instances of neovim simultaneously.
+  # if the system doesn't freeze, then this is safe to remove.
+  # added 2024-04-04
+  sane.user.fs.".profile".symlink.text = lib.mkBefore ''
+    export UV_USE_IO_URING=0
+  '';
+
   # hack in the `boot.shell_on_fail` arg since that doesn't always seem to work.
   boot.initrd.preFailCommands = "allowShell=1";