[Webkit-unassigned] [Bug 275205] [GStreamer] Crash in WebCore::VideoFrameGStreamer::createWrappedSample when used by ImageDecoderGStreamer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=275205

--- Comment #9 from Michael Catanzaro <mcatanzaro at redhat.com> ---
Well I hit the crash probably at least 5 times just now, but each time I did something wrong (forgot to disable sandbox, used the wrong path in WEBKIT_GST_HARNESS_DUMP_DIR=, used Epiphany rather than MiniBrowser causing the web process to crash due to the gst-editing-services critical when setting GST_DEBUG=) and in each case failed to get the requested dumps.

Now that I've got the command right and can create the .mmd files, the crash has disappeared and I'm hitting the crash from bug #260723 instead, almost every time. Sometimes I also see bug #260455 or I hit a different crash in skia, but I'm not going to report a bug for the skia crash because I'm pretty sure it's caused by running out of file descriptors, so bug #260723 again. I also see MediaPlayerPrivateGStreamer.cpp error messages indicating that TextureMapperPlatformLayerProxyDMABuf is broken, but again I'm pretty confident that's caused by running out of file descriptors, so won't post them.

Finally I figured out that this bug #275205 never occurs when the sandbox is disabled. That's strange. That means there is also no good way to get the requested .mmd files. I will try to sabotage the sandbox a bit.

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