Gala dumped core while interacting with the Pen & Drawing settings

[o-alquimista]

What Happened?

You will find the core dump near the end of this journald log file: journald.log.

And this is the output of G_MESSAGES_DEBUG=all io.elementary.settings: elementary-settings-cache-clear.log

Steps to Reproduce

1. Because of issue System Settings crashes when clicking on Pen & Drawing settings-wacom#83, I must clear the cache first. rm -rf ~/.cache/io.elementary.settings.
2. Open System Settings and go to Pen & Drawing.
3. Grab the pen and start moving it around in that window, then try to change the select boxes and toggles in there.

Gala crashed exactly when I was interacting with the Tracking Mode select box. I was changing its value using the pen.

Expected Behavior

It shouldn't crash.

Package versions:

• gala: 8.4.0
• io.elementary.settings: 8.0.3~r1431+pkg88~ubuntu8.1
• io.elementary.settings.wacom: 8.0.2+r453+pkg7~ubuntu24.04.1

I will to try to reproduce it again on 8.4.1.

OS Version

8.x (Circe)

OS Architecture

amd64 (on most hardwares)

Session Type

Secure Session (Wayland, This is the default)

Software Version

Latest release (I have run all updates)

Log Output

fev 10 11:44:12 helium kernel: gala[3343]: segfault at 18 ip 0000703fce3588be sp 00007ffec6a7e850 error 4 in libmutter-14.so.0.0.0[1588be,703fce250000+166000] likely on CPU 3 (core 3, socket 0)
fev 10 11:44:12 helium kernel: Code: 41 56 41 55 49 89 fd 48 89 f7 31 f6 41 54 41 89 d4 49 83 c5 28 53 e8 91 2c f0 ff 44 89 e2 49 8b 7d 08 f2 0f 10 05 aa b1 08 00 <f2> 0f 59 04 d0 f2 4c 0f 2c f0 e8 83 70 f0 ff 48 89 c3 eb 32 66 0f
fev 10 11:44:12 helium systemd[1]: Started systemd-coredump@6-31697-0.service - Process Core Dump (PID 31697/UID 0).
fev 10 11:44:13 helium kernel: audit: type=1400 audit(1770734653.408:1632): apparmor="DENIED" operation="open" class="file" profile="snap.firefox.firefox" name="/proc/pressure/memory" pid=6199 comm="MemoryPoller" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
fev 10 11:44:13 helium systemd-coredump[31698]: Process 3343 (gala) of user 1000 dumped core.
                                                
                                                Module libgcc_s.so.1 from deb gcc-14-14.2.0-4ubuntu2~24.04.amd64
                                                Module libstdc++.so.6 from deb gcc-14-14.2.0-4ubuntu2~24.04.amd64
                                                Module libzstd.so.1 from deb libzstd-1.5.5+dfsg2-2build1.1.amd64
                                                Module libudev.so.1 from deb systemd-255.4-1ubuntu8.12.amd64
                                                Module libsystemd.so.0 from deb systemd-255.4-1ubuntu8.12.amd64
                                                Stack trace of thread 3343:
                                                #0  0x0000703fce3588be n/a (libmutter-14.so.0 + 0x1588be)
                                                #1  0x0000703fce364170 n/a (libmutter-14.so.0 + 0x164170)
                                                #2  0x0000703fce3506f8 n/a (libmutter-14.so.0 + 0x1506f8)
                                                #3  0x0000703fce5a7518 n/a (libmutter-clutter-14.so.0 + 0x8e518)
                                                #4  0x0000703fce595851 clutter_stage_process_event (libmutter-clutter-14.so.0 + 0x7c851)
                                                #5  0x0000703fce5a20f0 _clutter_stage_process_queued_events (libmutter-clutter-14.so.0 + 0x890f0)
                                                #6  0x0000703fce57a4d5 n/a (libmutter-clutter-14.so.0 + 0x614d5)
                                                #7  0x0000703fcf634585 n/a (libglib-2.0.so.0 + 0x5d585)
                                                #8  0x0000703fcf693977 n/a (libglib-2.0.so.0 + 0xbc977)
                                                #9  0x0000703fcf634f47 g_main_loop_run (libglib-2.0.so.0 + 0x5df47)
                                                #10 0x0000703fce2d505a meta_context_run_main_loop (libmutter-14.so.0 + 0xd505a)
                                                #11 0x000059190be13345 n/a (gala + 0x41345)
                                                #12 0x0000703fcda2a1ca n/a (libc.so.6 + 0x2a1ca)
                                                #13 0x0000703fcda2a28b __libc_start_main (libc.so.6 + 0x2a28b)
                                                #14 0x000059190bdfde85 _start (gala + 0x2be85)
                                                
                                                Stack trace of thread 3360:
                                                #0  0x0000703fcdb1b4fd __poll (libc.so.6 + 0x11b4fd)
                                                #1  0x0000703fcf6938ce n/a (libglib-2.0.so.0 + 0xbc8ce)
                                                #2  0x0000703fcf634f47 g_main_loop_run (libglib-2.0.so.0 + 0x5df47)
                                                #3  0x0000703fce7e8582 n/a (libgio-2.0.so.0 + 0x11a582)
                                                #4  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3362:
                                                #0  0x0000703fcdb1b4fd __poll (libc.so.6 + 0x11b4fd)
                                                #1  0x0000703fcf6938ce n/a (libglib-2.0.so.0 + 0xbc8ce)
                                                #2  0x0000703fcf634f47 g_main_loop_run (libglib-2.0.so.0 + 0x5df47)
                                                #3  0x0000703fce3a69e6 n/a (libmutter-14.so.0 + 0x1a69e6)
                                                #4  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3361:
                                                #0  0x0000703fcdb1b4fd __poll (libc.so.6 + 0x11b4fd)
                                                #1  0x0000703fcf6938ce n/a (libglib-2.0.so.0 + 0xbc8ce)
                                                #2  0x0000703fcf633a23 g_main_context_iteration (libglib-2.0.so.0 + 0x5ca23)
                                                #3  0x0000703fcf845595 n/a (libdconfsettings.so + 0x7595)
                                                #4  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3366:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 5838:
                                                #0  0x0000703fcdb2728d syscall (libc.so.6 + 0x12728d)
                                                #1  0x0000703fcf68d52d g_cond_wait (libglib-2.0.so.0 + 0xb652d)
                                                #2  0x0000703fcf5fe58b n/a (libglib-2.0.so.0 + 0x2758b)
                                                #3  0x0000703fcf5fe5ec g_async_queue_pop (libglib-2.0.so.0 + 0x275ec)
                                                #4  0x0000703fcd6530fb n/a (libpangoft2-1.0.so.0 + 0xc0fb)
                                                #5  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #6  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #7  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3357:
                                                #0  0x0000703fcdb2728d syscall (libc.so.6 + 0x12728d)
                                                #1  0x0000703fcf68d52d g_cond_wait (libglib-2.0.so.0 + 0xb652d)
                                                #2  0x0000703fcf5fe58b n/a (libglib-2.0.so.0 + 0x2758b)
                                                #3  0x0000703fcf663c43 n/a (libglib-2.0.so.0 + 0x8cc43)
                                                #4  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3381:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3368:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3367:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 4322:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3370:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3376:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3380:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3358:
                                                #0  0x0000703fcdb1b4fd __poll (libc.so.6 + 0x11b4fd)
                                                #1  0x0000703fcf6938ce n/a (libglib-2.0.so.0 + 0xbc8ce)
                                                #2  0x0000703fcf633a23 g_main_context_iteration (libglib-2.0.so.0 + 0x5ca23)
                                                #3  0x0000703fcf633a79 n/a (libglib-2.0.so.0 + 0x5ca79)
                                                #4  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3383:
                                                #0  0x0000703fcdb1b4fd __poll (libc.so.6 + 0x11b4fd)
                                                #1  0x0000703fcf6938ce n/a (libglib-2.0.so.0 + 0xbc8ce)
                                                #2  0x0000703fcf634f47 g_main_loop_run (libglib-2.0.so.0 + 0x5df47)
                                                #3  0x0000703fce3a51e7 n/a (libmutter-14.so.0 + 0x1a51e7)
                                                #4  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 4235:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3382:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 4234:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3413:
                                                #0  0x0000703fcdb2728d syscall (libc.so.6 + 0x12728d)
                                                #1  0x0000703fcf68d52d g_cond_wait (libglib-2.0.so.0 + 0xb652d)
                                                #2  0x0000703fcf5fe58b n/a (libglib-2.0.so.0 + 0x2758b)
                                                #3  0x0000703fcf5fe5ec g_async_queue_pop (libglib-2.0.so.0 + 0x275ec)
                                                #4  0x0000703fcd6530fb n/a (libpangoft2-1.0.so.0 + 0xc0fb)
                                                #5  0x0000703fcf662e62 n/a (libglib-2.0.so.0 + 0x8be62)
                                                #6  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #7  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3364:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 5837:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3365:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3369:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3375:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 3374:
                                                #0  0x0000703fcda98d71 n/a (libc.so.6 + 0x98d71)
                                                #1  0x0000703fcda9b7ed pthread_cond_wait (libc.so.6 + 0x9b7ed)
                                                #2  0x0000703fad999edd n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599edd)
                                                #3  0x0000703fad965fbb n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x565fbb)
                                                #4  0x0000703fad999e0c n/a (libgallium-25.2.8-0ubuntu0.24.04.1.so + 0x599e0c)
                                                #5  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #6  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                
                                                Stack trace of thread 5841:
                                                #0  0x0000703fcdb1b4fd __poll (libc.so.6 + 0x11b4fd)
                                                #1  0x0000703fa4057596 n/a (libpulse.so.0 + 0x34596)
                                                #2  0x0000703fa40406e4 pa_mainloop_poll (libpulse.so.0 + 0x1d6e4)
                                                #3  0x0000703fa404b1b3 pa_mainloop_iterate (libpulse.so.0 + 0x281b3)
                                                #4  0x0000703fa404b278 pa_mainloop_run (libpulse.so.0 + 0x28278)
                                                #5  0x0000703fa405b7c1 n/a (libpulse.so.0 + 0x387c1)
                                                #6  0x0000703f6370d67b n/a (libpulsecommon-16.1.so + 0x5b67b)
                                                #7  0x0000703fcda9caa4 n/a (libc.so.6 + 0x9caa4)
                                                #8  0x0000703fcdb29c6c n/a (libc.so.6 + 0x129c6c)
                                                ELF object binary architecture: AMD x86-64
fev 10 11:44:13 helium systemd[1]: systemd-coredump@6-31697-0.service: Deactivated successfully.
fev 10 11:44:13 helium gnome-text-editor[6533]: Lost connection to Wayland compositor.
fev 10 11:44:13 helium loupe[12600]: Lost connection to Wayland compositor.
fev 10 11:44:13 helium io.elementary.f[4146]: Error reading events from display: Broken pipe
fev 10 11:44:13 helium io.elementary.t[10906]: Error reading events from display: Broken pipe

Hardware Info

Tablet: One by Wacom CTL-472

[leolost2605]

Judging from the stack trace this seems like an issue in mutter itself instead of gala. Could you try whether the same thing happens when changing the setting under gnome shell?

[o-alquimista]

You're right, it crashes GNOME Shell as well.

fev 12 18:31:15 helium kernel: gnome-shell[65376]: segfault at 18 ip 0000741f77b588be sp 00007ffffac76f10 error 4 in libmutter-14.so.0.0.0[1588be,741f77a50000+166000] likely on CPU 7 (core 3, socket 0)
fev 12 18:31:15 helium kernel: Code: 41 56 41 55 49 89 fd 48 89 f7 31 f6 41 54 41 89 d4 49 83 c5 28 53 e8 91 2c f0 ff 44 89 e2 49 8b 7d 08 f2 0f 10 05 aa b1 08 00 <f2> 0f 59 04 d0 f2 4c 0f 2c f0 e8 83 70 f0 ff 48 89 c3 eb 32 66 0f
fev 12 18:31:15 helium systemd[1]: Started systemd-coredump@6-69801-0.service - Process Core Dump (PID 69801/UID 0).
fev 12 18:31:16 helium dbus-daemon[1249]: [system] Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)
fev 12 18:31:16 helium systemd-coredump[69802]: [🡕] Process 65376 (gnome-shell) of user 1000 dumped core.

• io.elementary.settings debug log: elementary-settings-from-gnome.log
• journald (just the core dump lines): elementary-gnome-journald.log

It crashes exactly when I tap the Tracking Mode select-box.