Bug#1100523: nautilus: high CPU usage, problem with nautilus-async-jobs and thumbnails

[Louis-Philippe Véronneau]

Package: nautilus
Version: 48~rc-2
Severity: important

Dear maintainers,

I'm having problems with Nautilus using a lot of CPU resources (more 
than 90% of 1 core, on a recent laptop), seemingly for no reasons.

This seems like a somewhat recent change, as I didn't notice this issue 
before this week.

Running it with "G_MESSAGES_DEBUG=all" gives me the attached log file, 
but it seems the problem lies with the nautilus-async-jobs function that 
tries to create thumbnails.

After a few minutes of nautilus being opened in a directory, it starts 
spamming messages like these:

(org.gnome.Nautilus:35064): nautilus-async-jobs-DEBUG: 15:39:36.863: 
stopping thumbnail info in 0x559773fb7700
(org.gnome.Nautilus:35064): nautilus-async-jobs-DEBUG: 15:39:36.863: 
starting thumbnail info in 0x559773fb7700

Disabling thumbnails looks like it fixes the issues...

Cheers,

-- System Information:
Debian Release: trixie/sid
   APT prefers unstable
   APT policy: (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.17-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US.UTF-8
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages nautilus depends on:
ii  bubblewrap                      0.11.0-2
ii  desktop-file-utils              0.28-1
ii  eject                           2.40.4-5
ii  gsettings-desktop-schemas       48~rc-1
ii  gvfs                            1.57.2-1
ii  libadwaita-1-0                  1.7~rc-1
ii  libc6                           2.41-4
ii  libcairo2                       1.18.2-2
ii  libcloudproviders0              0.3.6-1+b1
ii  libgdk-pixbuf-2.0-0             2.42.12+dfsg-2
ii  libgexiv2-2                     0.14.3-1+b1
ii  libglib2.0-0t64                 2.84.0-1
ii  libglib2.0-data                 2.84.0-1
ii  libgnome-autoar-0-0             0.4.5-2
ii  libgnome-desktop-4-2t64         44.1-2
ii  libgraphene-1.0-0               1.10.8-5
ii  libgstreamer-plugins-base1.0-0  1.26.0-1
ii  libgstreamer1.0-0               1.26.0-1
ii  libgtk-4-1                      4.17.5+ds-3
ii  libnautilus-extension4          48~rc-2
ii  libpango-1.0-0                  1.56.1-1
ii  libportal-gtk4-1                0.9.1-1
ii  libportal1                      0.9.1-1
ii  libselinux1                     3.8-4
ii  libtinysparql-3.0-0             3.8.2-5
ii  libwayland-client0              1.23.1-3
ii  libx11-6                        2:1.8.10-2
ii  nautilus-data                   48~rc-2
ii  shared-mime-info                2.4-5+b2
ii  tracker-extract [localsearch]   3.8.2-4
ii  xdg-user-dirs-gtk               0.14-1

Versions of packages nautilus recommends:
ii  gnome-sushi           46.0-2
ii  gvfs-backends         1.57.2-1
ii  libgdk-pixbuf2.0-bin  2.42.12+dfsg-2
ii  librsvg2-common       2.59.90+dfsg-2

nautilus suggests no packages.

-- no debconf informatio

-- 
   ⢀⣴⠾⠻⢶⣦⠀
   ⣾⠁⢠⠒⠀⣿⡁  Louis-Philippe Véronneau
   ⢿⡄⠘⠷⠚⠋   pollo at debian.org / veronneau.org
   ⠈⠳⣄
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