220335 2021-01-05 13:14:57 -0800 [WPE][GTK] File descriptor leak 2021-02-23 13:13:55 -0800 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux RESOLVED MOVED https://bugs.webkit.org/show_bug.cgi?id=220090 P2 Normal --- 1 mcatanzaro webkit-unassigned bugs-noreply mcatanzaro tpopela oldest_to_newest 1717448 0 mcatanzaro 2021-01-05 13:14:57 -0800 Open MiniBrowser (or Epiphany), launch five browser tabs, and use gnome-system-monitor to inspect the open files of the first and last WebKitWebProcess. Do not use flatpak, because when running Epiphany under flatpak, everything seems fine for some reason I don't understand. But when running outside flatpak, I see the number of local sockets usually -- but not always -- increases by 2 for each web process launched. We are leaking some file descriptors... somewhere. Sadly, this is going to be hard to debug. 1720359 1 mcatanzaro 2021-01-18 09:07:28 -0800 From bug #220090, we can probably avoid this by removing G_SUBPROCESS_FLAGS_INHERIT_FDS, but to do that we need a way to exempt the WPE render host socket by passing it to ProcessLauncher and from there to g_subprocess_launcher_take_fd(). r241816 -- which seemed like a nice cleanup at the time -- made this harder. 1732668 2 mcatanzaro 2021-02-23 13:13:55 -0800 I tracked this down to wpebackend-fdo, https://github.com/Igalia/WPEBackend-fdo/pull/136.