Created attachment 123842 [details] Xorg log for the crash Running "nq-sdl -mem 128 +set vid_width 1024 +set vid_height 768" crashes Xorg. If resolution is unchanged (e.g. native 1280x1024 for example), no crash. Using latest git DDX. Attaching gdb backtrace and Xorg.log -- Window manager: WindowMaker 0.95.6+b1 -- chipset: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) -- system architecture: x86-64 / 64bit -- xf86-video-intel: GIT head/master a508b11bde9f3119b49b3e0f652587efb9e037af -- xserver: X.Org X Server 1.18.3-1 -- mesa: 11.2.2-1 -- libpixman: 0.33.6-1 -- libdrm version: 2.4.68-1 -- kernel version: 4.5.4-grsec -- Linux distribution: current Debian Testing -- Machine or mobo model: Asus H97M-PLUS, core i7-4770 -- Display connector: VGA
Created attachment 123843 [details] Xorg core dump backtrace
Sorry, I need a full-debug log for this one. Judging by the explanation and trace, I would say that we have a pending swap that isn't being cleared across the mode change. I need to dig out why it wasn't flushed - or find the right reason.
Created attachment 123845 [details] DDX full debug log As requested. :)
Apparently disabling TearFree causes this issue to disappear as well ..
Looks the same assert as (should be) fixed by: commit 46ffdf295d161a70459508ef0643d70af66ed990 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Sun May 22 18:31:50 2016 +0100 sna/dri2: Avoid chaining swaps across a mode change If the pixmap on a drawable changes between swap events, just queue a normal vblank event rather than chaining up. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk
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