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I am seeing the same 100% CPU usage and a partially drawn rectangle as reported in bug 370215, however with Eclipse 4.10 (build id: 20181206-0815), I believe both when hovering a symbol reference, and when opening an auto-complete pop-up. This is not reproducible at will, but happens from time to time, so I suspect some race condition between the UI responding to a user action and to some background event, such as when hitting a breakpoint or completing the execution of a statement. Console output from running with SWT_LIB=1: SWT_LIB_Gtk:3.18.9 (Dynamic gdbus) SWT_LIB GDbus firing up. Implementation v1.5 SWT_LIB Webkit2 Webkitgtk:2.20.5 (webkitgtk >=2.5 is Webkit2) SWT Glue code version: 54.0 info: +BrowserFunction/GDBus, +WebkitExtension Folder versioning, +WebKitExtension OSGI support, +setUrl(..postData..), -setCookie(), -getCookie +mouseDown/Focus
Also, just for completeness, I see a few messages like this on the console, probably not related, but here you are: *** BUG *** In pixman_region32_init_rect: Invalid rectangle passed Set a breakpoint on '_pixman_log_error' to debug
I see freezes from time to time as well, especially when hovering over something or doing Ctrl + hover. Of course it's not very reproducible at all, seems to happen almost randomly.
I'm also experiencing freeze when hovering. Console output with "export SWT_LIB_VERSIONS=1" and "./eclipse" : SWT_LIB_Gtk:3.24.20 (Dynamic gdbus) SWT_LIB GDbus firing up. Implementation v1.5 Installation Details: eclipse.buildId=4.20.0.I20210611-1600 org.eclipse.swt.internal.gtk.theme=Adwaita org.eclipse.swt.internal.webkitgtk.version=2.32.0 After debugging and looking at the stack dump shared in bug 370215, it seems to be stuck in a while loop at org.eclipse.swt.widgets.Shell.setVisible(Shell.java:2917): do { if (GTK.GTK4) { OS.g_main_context_iteration (0, false); } else { GTK3.gtk_main_iteration_do (false); } if (isDisposed ()) break; iconic = minimized || (shell != null && shell.minimized); } while (!mapped && !iconic);
