lyx segfaults upon opening a .lyx file

[J B]

Running:
$ lyx mlfriendsonly2.lyx
gives a segfault. Other lyx files work fine, and this file used to work fine last year.

1) $ lsb_release -rd
No LSB modules are available.
Description: Ubuntu 24.04 LTS
Release: 24.04

2) $ apt-cache policy lyx
lyx:
  Installed: 2.4.0~RC3-1build4
  Candidate: 2.4.0~RC3-1build4
  Version table:
 *** 2.4.0~RC3-1build4 500
        500 http://archive.ubuntu.com/ubuntu noble/universe amd64 Packages
        100 /var/lib/dpkg/status

3) the GUI to open
4) segfault

I enabled apport following the instructions (enabled=1, commenting out problem_types line, but apport does not pop up). So I am using valgrind and gdb and attaching them below.

Strangely this crash also caused wayland to crash, before I uninstalled snapd.

[J B (buchner-johannes)]

G_SLICE=always-malloc G_DEBUG=gc-friendly valgrind -v --tool=memcheck --leak-check=full --num-callers=40 --log-file=valgrind.log $(which lyx) /mnt/data/daten/PostDoc2/research/stats/mlfriends-analysis/pres/mlfriendsonly2.lyx

[J B (buchner-johannes)]

looks like an infinite stack? (gdb never completes "backtrace full")

[J B (buchner-johannes)]

other gdb commands from https://wiki.ubuntu.com/Backtrace

"thread apply all backtrace" hangs indefinitely and does not complete.

[J B (buchner-johannes)]

boot log from journalctl -xb