[Webkit-unassigned] [Bug 195532] [GTK] webkit2gtk3: magazine_chain_pop_head(): WebKitWebProcess killed by SIGSEGV

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195532

Michael Catanzaro <mcatanzaro at igalia.com> changed:

           What    |Removed                     |Added
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                 CC|                            |mcatanzaro at igalia.com
           See Also|                            |https://bugzilla.redhat.com
                   |                            |/show_bug.cgi?id=1687186

--- Comment #12 from Michael Catanzaro <mcatanzaro at igalia.com> ---
I can't reproduce.

I wrote in the downstream bug:

Web process memory corruption. This is going to be hard or impossible to debug. :/

* If you're able to reproduce the crash somehow, that gives us only a vague chance of tracking this down. Otherwise: no chance.

* Actual code bug might be in the surrounding GStreamer MediaPlayer code, or it might be somewhere completely unrelated and the GStreamer code is just getting unlucky. No way to know from the backtrace.

* To catch memory corruption, we can use asan or valgrind. I believe asan is currently broken with WebKit. That means instructing the WebKit UI process to launch the web process under valgrind, which requires a debug build of WebKit (not provided by Fedora, and no guarantee the crash would even occur in a custom build, either) and messing with debug environment variables.

Memory corruption is the absolute worst. Sadly there's nothing actionable here, and getting anything actionable would be hard.

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