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nixos/tests/cagebreak: Fix the test

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Starting Cagebreak as X11 client doesn't work anymore as wlroots 0.13
started to require the DRI3 extension which isn't supported by LLVMpipe:
machine # [   13.508284] xsession[938]: 00:00:00.003 [ERROR] [backend/x11/backend.c:433] X11 does not support DRI3 extension
machine # [   13.666989] show_signal_msg: 62 callbacks suppressed
machine # [   13.666993] .cagebreak-wrap[938]: segfault at 8 ip 0000000000408574 sp 00007ffef76f2440 error 4 in .cagebreak-wrapped[407000+d000]
machine # [   13.670483] Code: f4 ff ff 4c 8b 84 24 70 01 00 00 8d 45 01 48 89 c5 49 8b 3c c0 48 85 ff 75 e4 4c 89 c7 e8 84 f4 ff ff 48 8b bc 24 18 01 00 00 <48> 8b 47 08 4c 8d 6f d8 48 8d 68 d8 48 39 df 75 0e eb 36 66 0f 1f
machine # [   13.518274] xsession[938]: 00:00:00.006 [ERROR] [../cagebreak.c:313] Unable to create the wlroots backend

The test broke after updating Cagebreak in #121652 (bf8679ba94).

XWayland still fails for unknown reasons:
Modifiers specified, but DRI is too old
libEGL warning: DRI2: failed to create dri screen
libEGL warning: NEEDS EXTENSION: falling back to kms_swrast
glamor: No eglstream capable devices found
glamor: 'wl_drm' not supported
Missing Wayland requirements for glamor GBM backend
Missing Wayland requirements for glamor EGLStream backend
Failed to initialize glamor, falling back to sw
00:00:03.534 [ERROR] [xwayland/server.c:252] waitpid for Xwayland fork
failed: No child processes
(EE) failed to write to XWayland fd: Broken pipe
/nix/store/kcm3x8695fgycf31grzl9fy5gggwpram-xterm-367/bin/xterm: Xt
error: Can't open display: :0

The fallback to software rendering is to be expected but it looks like
XWayland is crashing with "failed to write to XWayland fd: Broken pipe".
This commit is contained in:
Michael Weiss 2021-05-14 16:11:13 +02:00
parent 5cd6410fef
commit 81b2ce96c6
No known key found for this signature in database
GPG key ID: 5BE487C4D4771D83
1 changed files with 17 additions and 34 deletions
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51
nixos/tests/cagebreak.nix
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@ -17,25 +17,13 @@ in
let
alice = config.users.users.alice;
in {
# Automatically login on tty1 as a normal user:
imports = [ ./common/user-account.nix ];
services.getty.autologinUser = "alice";
hardware.opengl.enable = true;
programs.xwayland.enable = true;
environment.systemPackages = [ pkgs.cagebreak pkgs.wallutils ];
services.xserver = {
enable = true;
displayManager.autoLogin = {
enable = true;
user = alice.name;
};
};
services.xserver.windowManager.session = lib.singleton {
manage = "desktop";
name = "cagebreak";
start = ''
export XDG_RUNTIME_DIR="/run/user/${toString alice.uid}"
${pkgs.cagebreak}/bin/cagebreak &
waitPID=$!
'';
};
systemd.services.setupCagebreakConfig = {
wantedBy = [ "multi-user.target" ];
@ -56,17 +44,9 @@ in
'';
};
# Copied from cage:
# this needs a fairly recent kernel, otherwise:
# [backend/drm/util.c:215] Unable to add DRM framebuffer: No such file or directory
# [backend/drm/legacy.c:15] Virtual-1: Failed to set CRTC: No such file or directory
# [backend/drm/util.c:215] Unable to add DRM framebuffer: No such file or directory
# [backend/drm/legacy.c:15] Virtual-1: Failed to set CRTC: No such file or directory
# [backend/drm/drm.c:618] Failed to initialize renderer on connector 'Virtual-1': initial page-flip failed
# [backend/drm/drm.c:701] Failed to initialize renderer for plane
boot.kernelPackages = pkgs.linuxPackages_latest;
virtualisation.memorySize = 1024;
# Need to switch to a different VGA card / GPU driver than the default one (std) so that Cagebreak can launch:
virtualisation.qemu.options = [ "-vga virtio" ];
};
enableOCR = true;
@ -77,17 +57,20 @@ in
in ''
start_all()
machine.wait_for_unit("multi-user.target")
machine.wait_until_tty_matches(1, "alice\@machine")
machine.send_chars("cagebreak\n")
machine.wait_for_file("${XDG_RUNTIME_DIR}/wayland-0")
with subtest("ensure wayland works with wayinfo from wallutils"):
machine.succeed("env XDG_RUNTIME_DIR=${XDG_RUNTIME_DIR} wayinfo")
print(machine.succeed("env XDG_RUNTIME_DIR=${XDG_RUNTIME_DIR} wayinfo"))
with subtest("ensure xwayland works with xterm"):
machine.send_key("ctrl-t")
machine.send_key("t")
machine.wait_until_succeeds("pgrep xterm")
machine.wait_for_text("${user.name}@machine")
machine.screenshot("screen")
machine.send_key("ctrl-d")
# TODO: Fix the XWayland test (log the cagebreak output to debug):
# with subtest("ensure xwayland works with xterm"):
# machine.send_key("ctrl-t")
# machine.send_key("t")
# machine.wait_until_succeeds("pgrep xterm")
# machine.wait_for_text("${user.name}@machine")
# machine.screenshot("screen")
# machine.send_key("ctrl-d")
'';
})