[Bug 94515] xorg-server 1.18.2 freeze desktop on i915

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94515

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Tobias Klausmann from comment #2)
> i can confirm this bug (sometimes right at startup), it always leads to the
> following backtrace (sorry for no line numbers):
> 
> #0  0x00007f1c47e8b487 in ioctl () at /lib64/libc.so.6
> #1  0x00007f1c491cdbf8 in drmIoctl () at /usr/lib64/libdrm.so.2
> #2  0x00007f1c43972fff in sna_present_queue_vblank () at
> /usr/lib64/xorg/modules/drivers/intel_drv.so

That can't be the same bug as FadeMind isn't using DRI3/Present. Please file a
separate bug, and here both drm.debug=0x7 dmesg and/or Xorg.0.log with
xf86-video-intel compiled with --enable-debug=full will be vital.

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