301098 2025-10-20 08:51:12 -0700 [GTK][WPE] bwrapinfo.json file leaks 2026-01-20 09:50:44 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=238403 P2 Normal --- 1 clopez webkit-unassigned pgriffis oldest_to_newest 2152584 0 clopez 2025-10-20 08:51:12 -0700 Each time the browser is started it is leaking bwrapinfo.json files at ${XDG_RUNTIME_DIR}/.flatpak/webkit-${PID}-${ID} And this can be an issue that can cause ${XDG_RUNTIME_DIR} to become full This is causing issues for example, on the RPi4 boards running the WPE performance bot CI. See: https://build.webkit.org/#/builders/895/builds/20515 ** (MiniBrowser:3724721): WARNING **: 07:59:25.587: Failed to create '/run/user/1906/.flatpak/webkit-3724721-4': No space left on device ** (MiniBrowser:3724721): WARNING **: 07:59:25.587: Failed to make socket file /run/user/1906/wpe/bus-proxy-4BU1E3 for dbus proxy: No space left on device ** (MiniBrowser:3724721): WARNING **: 07:59:25.588: Failed to make socket file /run/user/1906/wpe/a11y-proxy-S0T1E3 for dbus proxy: No space left on device ** (WPEWebProcess:2): WARNING **: 07:59:26.014: Can't connect to a11y bus: Could not connect: No such file or directory ** (MiniBrowser:3724721): WARNING **: 07:59:26.043: Failed to create '/run/user/1906/.flatpak/webkit-3724721-5': No space left on device A manual inspect via ssh shows thousands of this files that end adding and consuming all the space available there (380M) bb-wpe-rpi4-perf6-64 ~ # du -hs /run/user/1906/.flatpak 189M /run/user/1906/.flatpak bb-wpe-rpi4-perf6-64 ~ # df -h /run/user/1906/.flatpak Filesystem Size Used Avail Use% Mounted on tmpfs 380M 189M 191M 50% /run/user/1906 bb-wpe-rpi4-perf6-64 ~ # find /run/user/1906/.flatpak -type f -name bwrapinfo.json|wc -l 48162 2152585 1 clopez 2025-10-20 08:52:09 -0700 273334@main added the code to create this bwrapinfo.json files 2153018 2 pgriffis 2025-10-21 10:11:57 -0700 It looks like Flatpak has a lot of logic to deal with this: https://github.com/flatpak/flatpak/blob/main/common/flatpak-instance.c It involves locking the file at various points, and a garbage collection step. 2160601 3 clopez 2025-11-21 09:17:52 -0800 Does it make sense that we create this files if WebKit is not running inside flatpak? I understand that this is for xdg-desktop-portal, but xdg-desktop-portal is only relevant when running inside flatkpak, isn't it? So.. can we at least check if we are running inside flatpak, and if not avoid creating this files? 2173364 4 clopez 2026-01-20 09:50:44 -0800 This continue to be an issue. I'm workaround-ing the problem by deploying a systemd timer on the bots to clean this files daily