[Webkit-unassigned] [Bug 167218] New: [GTK] WebProcess reliably crashes when opening inspector and compositing disabled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=167218

            Bug ID: 167218
           Summary: [GTK] WebProcess reliably crashes when opening
                    inspector and compositing disabled
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Major
          Priority: P3
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mike at vee.net
                CC: bugs-noreply at webkitgtk.org

WebKit2GTK: 2.14.3

When using WebKit2GTK+ with compositing disabled (i.e. WEBKIT_DISABLE_COMPOSITING_MODE=1 set) opening the Inspector will immediately cause the WebProcess to crash. I can repro this 100% reliably with 2.14.[2,3] using Epiphany 3.22.0:

> WEBKIT_DISABLE_COMPOSITING_MODE=1 epiphany

And it's also a problem for the WK2 port of Geary, where WEBKIT_DISABLE_COMPOSITING_MODE=1 gets set first thing in main(), which obviously makes debugging CSS and JS issues there kind of annoying.

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