[Bug 71759] Intel driver fails with "intel_do_flush_locked failed: No such file or directory" if buffer imported with EGL_NATIVE_PIXMAP_KHR

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71759

--- Comment #9 from Fabrice Bellet <fabrice at bellet.info> ---
The bug is still there on a Fedora 23, with the vaapi intel driver. Triggered
with this gstreamer pipeline : gst-launch-1.0 filesrc
location=~/Downloads/NeroAVC.mp4 ! decodebin ! cluttersink

with NeroAVC.mp4 taken from http://samples.mplayerhq.hu/V-codecs/h264/

It happens when DRI3 is enabled (setting LIBGL_DRI3_DISABLE=1 is a possible
workaround, as the code path in the intel driver is different in the DRI2 case,
I provide a log in this case if needed).

Here is the output from the pipeline obtained with CLUTTER_DEBUG, COGL_DEBUG,
GST_DEBUG set, with INTEL_DEBUG=bat,tex,dri, and with latest mesa from git
master.

The problem is caused by a drmioctl returning -2 for command
I915_GEM_EXECBUFFER2. I also provide a related log obtained with drm.debug=7.

Hope this helps,

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