Public bug reported:

On a Ubuntu 24.04 install with Gnome, I have semi-regular crashes where
my desktop environment starts hanging, until it crashes and I have to
log in again. I attached an analysis of the last crash.

(Disclosure: The crash report was extracted by claude code)

```bash
$ apport-unpack /var/crash/_usr_bin_gnome-shell.1000.crash /tmp/gnome-crash
$ cat /tmp/gnome-crash/Signal
6
$ cat /tmp/gnome-crash/SignalName
SIGABRT
$ cat /tmp/gnome-crash/Package
gnome-shell 46.0-0ubuntu6~24.04.12
$ cat /tmp/gnome-crash/DistroRelease
Ubuntu 24.04
$ cat /tmp/gnome-crash/Uname
Linux 6.8.0-90-generic x86_64
$ cat /tmp/gnome-crash/Date
Fri Jan 16 23:12:26 2026
$ cat /tmp/gnome-crash/CurrentDesktop
ubuntu:GNOME
$ cat /tmp/gnome-crash/DisplayManager
gdm3
```

```bash
$ dpkg -l gnome-shell mutter libmutter-14-0 gjs libgjs0g | grep "^ii"
ii  gjs                  1.80.2-1build2         amd64  Mozilla-based javascript 
bindings for the GNOME platform
ii  gnome-shell          46.0-0ubuntu6~24.04.12 amd64  graphical shell for the 
GNOME desktop
ii  libgjs0g:amd64       1.80.2-1build2         amd64  Mozilla-based javascript 
bindings for the GNOME platform
ii  libmutter-14-0:amd64 46.2-1ubuntu0.24.04.14 amd64  window manager library 
from the Mutter window manager
```

```bash
$ gnome-extensions list --enabled
[email protected]
[email protected]
[email protected]
[email protected]
```

```bash
$ cat /tmp/gnome-crash/JournalErrors | grep "JS ERROR" -A10
Jan 16 23:12:26 three-conifer gnome-shell[5448]: JS ERROR: TypeError: 
message.notification is null
                                                 
vfunc_map/<@resource:///org/gnome/shell/ui/calendar.js:904:17
                                                 
vfunc_map@resource:///org/gnome/shell/ui/calendar.js:903:24
                                                 
open@resource:///org/gnome/shell/ui/boxpointer.js:94:14
                                                 
open@resource:///org/gnome/shell/ui/popupMenu.js:980:26
                                                 
toggle@resource:///org/gnome/shell/ui/popupMenu.js:857:18
                                                 
vfunc_event@resource:///org/gnome/shell/ui/panelMenu.js:142:23
                                                 
@resource:///org/gnome/shell/ui/init.js:21:20
```

```bash
$ cat /tmp/gnome-crash/StacktraceTop
??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
g_assertion_message_expr () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
??? () at /usr/lib/x86_64-linux-gnu/mutter-14/libmutter-clutter-14.so.0
??? () at /usr/lib/x86_64-linux-gnu/mutter-14/libmutter-clutter-14.so.0
??? () at /usr/lib/gnome-shell/libst-14.so
```

```bash
$ cat /tmp/gnome-crash/JournalErrors | grep -E "gnome-shell|ABRT" | head -5
Jan 16 23:12:35 three-conifer systemd[5131]: [email protected]: 
Main process exited, code=dumped, status=6/ABRT
Jan 16 23:12:35 three-conifer systemd[5131]: [email protected]: 
Failed with result 'core-dump'.
```

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2138529

Title:
  gnome-shell crashes with SIGABRT through notification/calendar panel

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