xwayland: Avoid creating a tree query on crash (!348) · Merge requests · Plasma / KWin

Vlad Zahorodnii requested to merge work/xwayland-crash into master Oct 14, 2020

If Xwayland has crashed, the Workspace will block stacking order updates and start destroying all X11 clients.

Once stacking order updates are unblocked, the Workspace will mark the X stacking order as dirty and create a new Xcb::Tree object.

We don't want to create that Xcb::Tree object because accessing it after the XCB connection has been shut down will lead to a crash.

BUG: 427688 FIXED-IN: 5.20.1

xwayland: Avoid creating a tree query on crash