picom experimental-backends eating all my ram via xorg

[gforgas]

Hello,

After a system upgrade I'm experiencing some kind of memory leak bug when using picom with experimental backends.

I'm adding some outputs, please let me know what else to provide if needed.

sudo pacman -Q | grep picom picom 9.1-2

uname -a Linux iddqd 5.17.3-artix1-1 #1 SMP PREEMPT Thu, 14 Apr 2022 18:16:36 +0000 x86_64 GNU/Linux

[2022-04-15T00:06:27+0200] [PACMAN] Running 'pacman -Syu'
[2022-04-15T00:06:27+0200] [PACMAN] synchronizing package lists
[2022-04-15T00:06:31+0200] [PACMAN] starting full system upgrade
[2022-04-15T00:06:37+0200] [ALPM] running '60-mkinitcpio-remove.hook'...
[2022-04-15T00:06:37+0200] [ALPM] transaction started
[2022-04-15T00:06:37+0200] [ALPM] upgraded tzdata (2021e-1 -> 2022a-1)
[2022-04-15T00:06:37+0200] [ALPM] upgraded glibc (2.35-2 -> 2.35-3)
[2022-04-15T00:06:37+0200] [ALPM-SCRIPTLET] Generating locales...
[2022-04-15T00:06:38+0200] [ALPM-SCRIPTLET] en_US.UTF-8... done
[2022-04-15T00:06:38+0200] [ALPM-SCRIPTLET] Generation complete.
[2022-04-15T00:06:38+0200] [ALPM] upgraded libffi (3.4.2-4 -> 3.4.2-5)
[2022-04-15T00:06:38+0200] [ALPM] upgraded util-linux-libs (2.37.4-1 -> 2.38-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded zlib (1:1.2.11-5 -> 1:1.2.12-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded libsysprof-capture (3.42.1-3 -> 3.44.0-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded glib2 (2.70.4-2 -> 2.72.0-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded xz (5.2.5-2 -> 5.2.5-3)
[2022-04-15T00:06:38+0200] [ALPM] upgraded libtiff (4.3.0-1 -> 4.3.0-2)
[2022-04-15T00:06:38+0200] [ALPM] upgraded shared-mime-info (2.0+115+gd74a913-1 -> 2.0+144+g13695c7-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded gdk-pixbuf2 (2.42.6-2 -> 2.42.8-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded expat (2.4.7-1 -> 2.4.8-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded harfbuzz (4.0.1-1 -> 4.2.0-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded freetype2 (2.11.1-1 -> 2.12.0-1)
[2022-04-15T00:06:38+0200] [ALPM] upgraded fontconfig (2:2.13.96-1 -> 2:2.14.0-1)
[2022-04-15T00:06:38+0200] [ALPM-SCRIPTLET] Rebuilding fontconfig cache...
[2022-04-15T00:06:41+0200] [ALPM] upgraded libx11 (1.7.3.1-1 -> 1.7.5-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded cairo (1.17.4-5 -> 1.17.6-2)
[2022-04-15T00:06:41+0200] [ALPM] upgraded pango (1:1.50.5-1 -> 1:1.50.6-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded librsvg (2:2.52.7-1 -> 2:2.54.0-2)
[2022-04-15T00:06:41+0200] [ALPM] upgraded gtk-update-icon-cache (1:4.6.1-3 -> 1:4.6.2-2)
[2022-04-15T00:06:41+0200] [ALPM] upgraded adwaita-icon-theme (41.0-1 -> 42.0-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded alsa-card-profiles (1:0.3.48-1 -> 1:0.3.50-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded amd-ucode (20220309.cd01f85-1 -> 20220411.705f19a-1)
[2022-04-15T00:06:41+0200] [ALPM] warning: /etc/pacman.d/mirrorlist installed as /etc/pacman.d/mirrorlist.pacnew
[2022-04-15T00:06:41+0200] [ALPM] upgraded artix-mirrorlist (20220310-1 -> 20220325-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded libudev (250.3-1 -> 250.4-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded openssl (1.1.1.m-1 -> 1.1.1.n-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded krb5 (1.19.2-2 -> 1.19.3-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded at-spi2-core (2.42.0-1 -> 2.44.0-2)
[2022-04-15T00:06:41+0200] [ALPM] upgraded atk (2.36.0-1.1 -> 2.38.0-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded ca-certificates-mozilla (3.76-1 -> 3.77-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded curl (7.82.0-1 -> 7.82.0-2)
[2022-04-15T00:06:41+0200] [ALPM] upgraded binutils (2.38-3 -> 2.38-4)
[2022-04-15T00:06:41+0200] [ALPM] upgraded bluez-libs (5.63-2 -> 5.64-2)
[2022-04-15T00:06:41+0200] [ALPM] upgraded esysusers (250.3-1 -> 250.4-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded etmpfiles (250.3-1 -> 250.4-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded libusb (1.0.25-2 -> 1.0.26-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded hwdata (0.357-1 -> 0.358-1)
[2022-04-15T00:06:41+0200] [ALPM] upgraded kmod (29-2 -> 29-3)
[2022-04-15T00:06:41+0200] [ALPM] upgraded flashrom (1.2-2 -> 1.2-3)
[2022-04-15T00:06:41+0200] [ALPM] upgraded libstemmer (2.2.0-1 -> 2.2.0-2)
[2022-04-15T00:06:42+0200] [ALPM] upgraded libxmlb (0.3.7-1 -> 0.3.8-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded python (3.10.2-1 -> 3.10.4-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded libarchive (3.6.0-1 -> 3.6.1-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded json-glib (1.6.6-1 -> 1.6.6-2)
[2022-04-15T00:06:42+0200] [ALPM] upgraded util-linux (2.37.4-1 -> 2.38-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded udev (250.3-1 -> 250.4-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded gnutls (3.7.3-1 -> 3.7.4-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded gobject-introspection-runtime (1.70.0-5 -> 1.72.0-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded libgpg-error (1.44-1 -> 1.45-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded libgcrypt (1.9.4-1 -> 1.10.1-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded sqlite (3.38.0-1 -> 3.38.2-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded libsecret (0.20.5-1 -> 0.20.5-2)
[2022-04-15T00:06:42+0200] [ALPM] upgraded fwupd (1.7.6-1 -> 1.7.7-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded gc (8.2.0-2 -> 8.2.0-3)
[2022-04-15T00:06:42+0200] [ALPM] upgraded perl (5.34.0-3 -> 5.34.1-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded git (2.35.1-1 -> 2.35.2-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded gsettings-desktop-schemas (41.0-1 -> 42.0-1)
[2022-04-15T00:06:42+0200] [ALPM] upgraded glib-networking (1:2.70.1-1 -> 1:2.72.0-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded go (2:1.17.8-1 -> 2:1.18.1-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded groff (1.22.4-6 -> 1.22.4-7)
[2022-04-15T00:06:43+0200] [ALPM] upgraded grub (2:2.06-4 -> 2:2.06-5)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libxcursor (1.2.0-2.1 -> 1.2.1-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libepoxy (1.5.9-1 -> 1.5.10-1.1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded wayland (1.20.0-1 -> 1.20.0-2)
[2022-04-15T00:06:43+0200] [ALPM] upgraded vulkan-icd-loader (1.3.207-1 -> 1.3.208-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded mesa (21.3.7-2 -> 22.0.1-3)
[2022-04-15T00:06:43+0200] [ALPM] upgraded gtk3 (1:3.24.33-1 -> 1:3.24.33-2)
[2022-04-15T00:06:43+0200] [ALPM] upgraded gzip (1.11-1 -> 1.12-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded imlib2 (1.8.0-1.1 -> 1.8.1-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded inxi (3.3.12-1 -> 3.3.15-1)
[2022-04-15T00:06:43+0200] [ALPM] installed libbpf (0.7.0-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libnetfilter_conntrack (1.0.8-1.1 -> 1.0.9-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded iproute2 (5.16.0-1 -> 5.17.0-2)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libtool (2.4.6+59+gb55b1cc8-2 -> 2.4.7-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libsndfile (1.0.31-1 -> 1.1.0-2)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libcanberra (0.30+2+gc0620e4-5 -> 1:0.30+r2+gc0620e4-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libevdev (1.12.0-1 -> 1.12.1-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libical (3.0.14-1 -> 3.0.14-2)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libwacom (2.1.0-1 -> 2.2.0-1)
[2022-04-15T00:06:43+0200] [ALPM] upgraded libinput (1.20.0-1 -> 1.20.0-2)
[2022-04-15T00:06:44+0200] [ALPM] upgraded linux (5.16.14.artix1-1 -> 5.17.2.artix3-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded linux-firmware-whence (20220309.cd01f85-1 -> 20220411.705f19a-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded linux-firmware (20220309.cd01f85-1 -> 20220411.705f19a-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded man-db (2.10.1-1 -> 2.10.2-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded nspr (4.33-1 -> 4.33-2)
[2022-04-15T00:06:44+0200] [ALPM] upgraded nss (3.76-1 -> 3.77-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded openssh (8.9p1-1 -> 9.0p1-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded pavucontrol (1:5.0-1 -> 1:5.0+r35+g964f298-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded pipewire (1:0.3.48-1 -> 1:0.3.50-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded pipewire-alsa (1:0.3.48-1 -> 1:0.3.50-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded pipewire-pulse (1:0.3.48-1 -> 1:0.3.50-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded polybar (3.6.1-1 -> 3.6.2-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded python-cairo (1.20.1-3 -> 1.21.0-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded vim-runtime (8.2.4464-1 -> 8.2.4651-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded vim (8.2.4464-1 -> 8.2.4651-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded vte-common (0.66.2-1 -> 0.68.0-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded vte3 (0.66.2-1 -> 0.68.0-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded wpa_supplicant (2:2.10-3 -> 2:2.10-4)
[2022-04-15T00:06:44+0200] [ALPM] upgraded xorg-iceauth (1.0.8-2.1 -> 1.0.9-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded xorg-mkfontscale (1.2.1-2.1 -> 1.2.2-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded xorg-setxkbmap (1.3.2-2.1 -> 1.3.3-1)
[2022-04-15T00:06:44+0200] [ALPM] upgraded xorg-xdpyinfo (1.3.2-4 -> 1.3.3-4)
[2022-04-15T00:06:44+0200] [ALPM] upgraded xorg-xwayland (22.1.0-1 -> 22.1.1-1)

Disabling experimental backends seems to solve the issue.

[gforgas]

Sorry for posting this in the wrong place. I'm reposting in issues.