Public bug reported: Large (48kb) clipboard operations fail deadlocking applications. 1) This will cause whatever program receives a paste command to instantly enter a locked up state 2) Using `ps -e` to find wl-copy and issue a `kill <wl-copy-pid>` will result in the program recovering. 3) Transfers of 47 1K blocks will work correctly 4) Transfers of 48 1K blocks will fail. 5) This only happens when waypiping into my ubuntu 24.04 system. The same reproduction steps seems to work correctly when using waypipe 0.10.04 on a different system. 6) I have found an open issue upstream that seems to match this behavior "https://gitlab.freedesktop.org/mstoeckl/waypipe/-/issues/97"; 7) I suspect (but have not confirmed) that this commit https://gitlab.freedesktop.org/mstoeckl/waypipe/-/commit/328e0d43972c5f89305be23582a64cfdda90620b would resolve the issue. 8) An Archlinux system using a newer version of waypipe does not have this behavior.
Steps to reproduce 1) Open two terminals on a target ubuntu 24.04 system via waypipe 2) In terminal 1 run `dd if=/dev/urandom bs=1k count=48 status=none | base64 | WAYLAND_DEBUG=1 wl-copy --foreground` 3) In terminal 2 run `WAYLAND_DEBUG=1 wl-paste` 4) wl-copy and wl-paste will hang 5) Issue a control+c to wl-copy and data will stream as expected to wl-paste. System running programs. ``` grland@sadavir:~$ wl-copy --version wl-clipboard 2.2.1 Copyright (C) 2018-2023 Sergey Bugaev License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ``` ``` grland@sadavir:~$ waypipe --version waypipe 0.8.6 features: lz4 zstd dmabuf video vaapi unavailable: ``` ``` grland@sadavir:~$ ssh -V OpenSSH_9.6p1 Ubuntu-3ubuntu13.12, OpenSSL 3.0.13 30 Jan 2024 ``` System used as graphical display ``` [greg@endora ~]$ waypipe --version waypipe 0.10.4 features: lz4: true zstd: true dmabuf: true video: true ``` ``` [dedrone@endora ~]$ wl-copy --version wl-clipboard 2.2.1 Copyright (C) 2018-2023 Sergey Bugaev License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ``` ``` [greg@endora ~]$ ssh -V OpenSSH_10.0p2, OpenSSL 3.5.0 8 Apr 2025 ``` Bug report guidelines compliance lsb_release -rd ``` No LSB modules are available. Description: Ubuntu 24.04.2 LTS Release: 24.04 ``` apt-cache policy waypipe ``` waypipe: Installed: 0.8.6-2build1 Candidate: 0.8.6-2build1 Version table: *** 0.8.6-2build1 500 500 http://us.archive.ubuntu.com/ubuntu noble/universe amd64 Packages 100 /var/lib/dpkg/status ``` What I expected to happen ``` Pasting large files works correctly and does not cause the program to hang ``` What happened ``` Pasting more than 48k of data locks up the application involved in the copy and paste commands ``` ** Affects: waypipe (Ubuntu) Importance: Undecided Status: New ** Attachment added: "Log file of copy" https://bugs.launchpad.net/bugs/2116032/+attachment/5888323/+files/wl-paste.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2116032 Title: Waypipe hangs when pasting more than 48kb data To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/waypipe/+bug/2116032/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
