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daniellandau / switcher

Gnome Shell extension to switch windows quickly by typing
GNU General Public License v3.0
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Switcher crashes when opened twice over an open "hide on lose focus" guake window on Wayland #165

Open brettk-git opened 3 months ago

brettk-git commented 3 months ago

The following steps lead to a complete crash and logout of Gnome (steps tested on a fresh Fedora 39 installation):

1) log in using Wayland (not Xorg); 2) install and enable the Switcher extension; 3) open a terminal, run "guake -p"; 4) in the "Main window" tab, check the "Hide on lose focus" option, close the preferences window; 5) in another terminal, type "guake-toggle" to make the guake window appear; 6) now the guake window has appeared, press Super+W to make the Switcher window appear; 7) at this point the guake window has disappeared by itself, which is normal; press Esc to make the Switcher window disappear as well; 8) repeat steps 5) and 6); now the crash occurs.

daniellandau commented 3 months ago

Would you have something in the logs? I'm wondering where the bug in that even is, guake, switcher, or gnome shell

brettk-git commented 3 months ago

I would think the bug may come from switcher, or from gnome-shell, or from both (I doubt it comes from guake). My logs show this

`gnome-shell[6225]: Object St.Icon (0x559545b1ecc0), has been already disposed — impossible to access it. This might be caused by the object having been destroyed from C code using something such as destro> == Stack trace for context 0x5595458dc390 ==

0 5595459a6b48 i file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/util.js:180 (11faa5b79c90 @ 29)

                                          #1   5595459a6a50 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/modes/modeUtils.js:183 (3134655114c0 @ 839)
                                          #2   5595459a6988 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/modes/switcher.js:76 (3134655f0880 @ 135)
                                          #3   5595459a68e0 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:122 (31346556fa60 @ 84)
                                          #4   7ffcae949870 b   self-hosted:221 (3350b5670970 @ 267)
                                          #5   5595459a6840 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:121 (313465536d30 @ 63)
                                          #6   5595459a67a8 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:217 (3134655a9d80 @ 164)
                                          #7   7ffcae94a330 b   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:225 (31346552ed80 @ 1031)
                                          #8   7ffcae94aa40 b   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:426 (11faa5b5a1f0 @ 6)
                                          #9   5595459a6718 i   resource:///org/gnome/shell/ui/init.js:21 (3350b5670ba0 @ 48)

gnome-shell[6225]: Object St.Icon (0x559545b1ecc0), has been already disposed — impossible to access it. This might be caused by the object having been destroyed from C code using something such as destro> == Stack trace for context 0x5595458dc390 ==

0 5595459a6a50 i file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/modes/modeUtils.js:184 (3134655114c0 @ 851)

                                          #1   5595459a6988 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/modes/switcher.js:76 (3134655f0880 @ 135)
                                          #2   5595459a68e0 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:122 (31346556fa60 @ 84)
                                          #3   7ffcae949870 b   self-hosted:221 (3350b5670970 @ 267)
                                          #4   5595459a6840 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:121 (313465536d30 @ 63)
                                          #5   5595459a67a8 i   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:217 (3134655a9d80 @ 164)
                                          #6   7ffcae94a330 b   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:225 (31346552ed80 @ 1031)
                                          #7   7ffcae94aa40 b   file:///home/brettk/.local/share/gnome-shell/extensions/switcher@landau.fi/extension.js:426 (11faa5b5a1f0 @ 6)
                                          #8   5595459a6718 i   resource:///org/gnome/shell/ui/init.js:21 (3350b5670ba0 @ 48)

`

and then

audit[6225]: ANOM_ABEND auid=1001 uid=1001 gid=1001 ses=5 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=6225 comm="gnome-shell" exe="/usr/bin/gnome-shell" sig=11 res=1 kernel: gnome-shell[6225]: segfault at 8 ip 00007f06fbcac100 sp 00007ffcae94a460 error 6 in libmutter-clutter-13.so.0.0.0[7f06fbc8d000+9a000] likely on CPU 4 (core 8, socket 0)

followed by a core dump.

Can you reproduce?