xfwm4 coredump during boot on Groovy proposed Program terminated with signal SIGTRAP, Trace/breakpoint trap.

[bbhtt]

# journalctl -b -0

Aug 24 13:33:32 systemd-coredump[5725]: Process 3025 (xfwm4) of user 1000 dumped core.

                                        Stack trace of thread 3025:
                                        #0 0x00007f5cd08cd0b5 n/a (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.4 (deleted) + 0x580b5)
                                        #1 0x00007f5cd091f614 n/a (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.4 (deleted) + 0xaa614)

# coredumpctl info xfwm4
Journal file /var/log/journal/383ea8c95927438c95c2011a5f5bbfbb/[e-mail]~ is truncated, ignoring file.
           PID: 3025 (xfwm4)
           UID: 1000 (korte)
           GID: 1000 (korte)
        Signal: 5 (TRAP)
     Timestamp: Mon 2020-08-24 13:33:30 UTC (30min ago)
  Command Line: xfwm4
    Executable: /usr/bin/xfwm4
 Control Group: /user.slice/user-1000.slice/session-c11.scope
          Unit: session-c11.scope
         Slice: user-1000.slice
       Session: c11
     Owner UID: 1000 (korte)
       Boot ID: <>
    Machine ID: <>
      Hostname: kortewegdevries
       Storage: /var/lib/systemd/coredump/core.xfwm4.1000.e561b2d6a5fc41638972bb8aa2f32fcd.3025.1598276010000000000000.zst
       Message: Process 3025 (xfwm4) of user 1000 dumped core.

                Stack trace of thread 3025:
                #0 0x00007f5cd08cd0b5 n/a (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.4 (deleted) + 0x580b5)
                #1 0x00007f5cd091f614 n/a (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6400.4 (deleted) + 0xaa614)

backtrace:

Reading symbols from /usr/bin/xfwm4...

(No debugging symbols found in /usr/bin/xfwm4)
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `xfwm4'.
Program terminated with signal SIGTRAP, Trace/breakpoint trap.
#0 0x00007f5cd08cd0b5 in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
[Current thread is 1 (Thread 0x7f5ccf2c9200 (LWP 3025))]
(gdb) bt
#0 0x00007f5cd08cd0b5 in g_logv () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1 0x00007ffed891bb80 in ()
#2 0x00007f5cd091f782 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f5cd091f614 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0xffffffffffffffff in ()
#5 0x00007f5cd091f78b in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6 0x00007f5cd0caea00 in () at /lib/x86_64-linux-gnu/libgdk-3.so.0
#7 0xffffffffffffffff in ()
#8 0x00007f5cd091f795 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x00007f5cd0cae457 in () at /lib/x86_64-linux-gnu/libgdk-3.so.0
#10 0xffffffffffffffff in ()
#11 0x00007f5cd091f79f in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5cd0caf0f0 in () at /lib/x86_64-linux-gnu/libgdk-3.so.0
#13 0xffffffffffffffff in ()
#14 0x00007f5cd091f76f in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x0000558f242ab800 in ()
#16 0xffffffffffffffff in ()
#17 0x00007f5cd091f7dc in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f5cd0c90017 in () at /lib/x86_64-linux-gnu/libgdk-3.so.0
#19 0xffffffffffffffff in ()
#20 0x0000005b0000006e in ()
#21 0x00007f5cd039cb80 in main_arena () at /lib/x86_64-linux-gnu/libc.so.6
#22 0x0000000000000500 in ()

System Information:

# cat /proc/version_signature

Ubuntu 5.8.0-16.17-generic 5.8.0

# lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Groovy Gorilla (development branch)
Release: 20.10
Codename: groovy

xfwm4 4.14.5-1
systemd 246.2-1ubuntu1