XWayland coredumps on FreeBSD 14.1-RELEASE

[tulilirockz]

For some reason Xwayland just coredumps on a failed assertion when running niri on FreeBSD 14.1 with drm-515-kmod, absolutely no idea what causes it tho. Doesnt seem to happen on Sway

❯ Xwayland
Assertion failed: (dev->size == sizeof(dev_t)), function xwl_dmabuf_feedback_main_device, file ../hw/xwayland/xwayland-dmabuf.c, line 475.
(EE) 
Fatal server error:
(EE) Caught signal 6 (Abort trap). Server aborting
(EE)

System Information

• niri version: 0.1.9 (unknown commit)
  • Im using the LATEST port branch, and as of the time of writing, theyre fetching these dependency versions: https://cgit.freebsd.org/ports/tree/x11-wm/niri/distinfo

• Distro: FreeBSD 14.1-RELEASE-p5 with PkgBase

• APU: AMD Ryzen 3 2200g with Vega 8 integrated graphics

• More system information at: https://bsd-hardware.info/?probe=cb476ab6ab

[YaLTeR]

Uhhhhhh? No idea honestly

[tulilirockz]

This looks like what is going on here, but instead of the compositor crashing its just Xwayland: hyprwm/Hyprland#6408

this also seems related: https://reviews.freebsd.org/D26642

[tulilirockz]

Trying to nest sway in niri causes this to happen, too:
Assertion failed: (dev_id_arr->size == sizeof(dev_id)), function linux_dmabuf_feedback_v1_handle_main_device, file backend/wayland/backend.c, line 159.

[tulilirockz]

After testing out a ton of stuff, apparently nesting niri on.. niri... makes it work! - its just the tty backend that doesnt like Xwayland for some reason

[YaLTeR]

Does this still happen?

[YaLTeR]

Feel free to reopen with more info if you think this is a niri issue.

[tulilirockz]

Hello! Sorry for not answering earlier, I completely forgot about it. This is most likely an upstream issue. I tried manually updating smithay and tons of dependencies but even then it didnt fix the issue. Nowadays I dont use FreeBSD anymore so I cant really do anything about this issue anymore

[esad]

I am just testing FreeBSD 14.2 and this is still happening with Xwayland as well as e.g. cage when invoked from niri. This is very probably due to dev_t in libc crate having different definitions depending on which FreeBSD version it targets (see pop-os/cosmic-comp#1028 and referenced smithay fix at https://github.com/Smithay/client-toolkit/blob/25079ae75cb6952b0542aa343bd5a52c81d135d4/src/dmabuf.rs#L15-L19), I think this could also be worked around in niri freebsd port