https://bugs.freedesktop.org/show_bug.cgi?id=92384
Bug ID: 92384
Summary: Bogus use of wl_surface scaling leads to compositor
crash
Product: Wayland
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: weston
Assignee: [email protected]
Reporter: [email protected]
Created attachment 118797
--> https://bugs.freedesktop.org/attachment.cgi?id=118797&action=edit
patch for glfw making it reproduce the crash
This happens on both Weston 1.9.0 and latest git as of the 10th of October.
In the attached patch against GLFW, wl_egl_window_resize is incorrectly called
in maybeChangeScale(), which leads to a client lockup and potentially a
compositor crash (I haven’t been able to reproduce it each time, but in a good
50%).
Steps to reproduce:
1. Clone, patch and install GLFW master (https://github.com/glfw/glfw)
2. Get Citra (http://citra-emu.org/) or probably any other GLFW program
3. Start Weston with two mixed-scaling outputs
4. Run the GLFW program, and move it between the different outputs.
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