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  1. Qt
  2. QTBUG-124872

Qtwebengine crashes on video playing if compiled with O3

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    • Icon: Bug Bug
    • Resolution: Out of scope
    • Icon: P1: Critical P1: Critical
    • None
    • 6.7.0
    • WebEngine
    • None
    • Linux/Wayland

      Description

      Hi,

      I am a qutebrowser user, and since 6.7.0, its renderer, i.e. qtwebengine, crashes when a video is loaded. After playing a bit with the compilation flags, building it with O3 seems to be the culprit.

      I managed to reproduce it with simplebrowser and a pyqt app (in attachment). You will find a backtrace of the webengine process crash under simplebrowser in attachment.

      Step to reproduce

      1. Compile qtwebengine with O3
      2. simplebrowser youtube.com
      3. Click or hover on any video

      Expected result

      The video plays.

      Actual result

      The process crashes (status code 5).

        1. bt_simple.txt
          13 kB
        2. test_webengine.py
          1.0 kB
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            mnegyokru Martin Negyokru
            f380cedric JustWant2 ReportABug
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              Created:
              Updated:
              Resolved:

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