On 04/08/16 15:17, Nicolas Boichat wrote:
On Thu, Aug 4, 2016 at 7:17 PM, Martin Peres
<martin.pe...@linux.intel.com> wrote:


On 04/08/16 13:08, Nicolas Boichat wrote:

On Thu, Aug 4, 2016 at 5:52 PM, Martin Peres
<martin.pe...@linux.intel.com> wrote:

On 04/08/16 05:07, Nicolas Boichat wrote:


egl/x11 fixup has already be sent here:
https://patchwork.freedesktop.org/patch/101934/

Compile-tested only (on android only).

I was first thinking of modifying most functions in egl_dri2.c to take
in
dri2_egl_display *dri2_dpy instead of _EGLDisplay *disp as parameter, so
we do not need to set disp->DriverData early in the dri_initialize_*
functions.

But there are some functions that do need disp as well:
 - dri2_add_config, to call _eglInitConfig (disp->DriverData does not
need
to be
   set), and to check if extensions are supported.
 - dri2_setup_screen (similar reasons)

Ideas to untangle this are welcome. In the mean time, this patch series
should
fix crashes and a piglit test.

Nicolas Boichat (4):
  egl/wayland: Set disp->DriverData to NULL on error
  egl/surfaceless: Set disp->DriverData to NULL on error
  egl/drm: Set disp->DriverData to NULL on error
  egl/android: Set dpy->DriverData to NULL on error


This patch series fixes egl_khr_fence_sync for me:
Tested-by: Martin Peres <martin.pe...@linux.intel.com>


Thanks!

However, egl-create-context-verify-gl-flavor is still crashing, even with
"egl/dri2: dri2_initialize: Do not reference-count TestOnly display"
applied. The issue is that eglGetProcAddress("glGetString") returns NULL.


That's surprising, Michel said that my patch fixed that issue. Did you
try reverting "9ee683f877 (egl/dri2: Add reference count for
dri2_egl_display)" to confirm that my original patch broke it?


Yes, reverting the patch fixes the issue.

Ok, let's see how I understand eglGetProcAddress should work in this case:
- eglapi.c:eglGetProcAddress
- egldriver.c:_eglGetDriverProc
- egldriver.c:_eglMatchDriver, dpy->Options.TestOnly = EGL_TRUE
- egldriver.c:_eglMatchAndInitialize
- Calls drv->API.Initialize = egl_dri2.c:dri2_initialize
- Returns EGL_TRUE as TestOnly is true (before "egl/dri2:
dri2_initialize: Do not reference-count TestOnly display", it would
return EGL_FALSE, so eglGetProcAddress would fail)

So I don't really see how 9ee683f877 + "egl/dri2: dri2_initialize: Do
not reference-count TestOnly display" would fail (while reverting
9ee683f877 would work).

Any chance you could help tracing through the code? Or at least enable
debugging output?

Sorry for the noise, a make clean fixed the issue :s

I can confirm that "egl/dri2: dri2_initialize: Do not reference-count TestOnly display" fixes the issue, you can add my Tested-by!
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