Created attachment 54854 [details] first 10,000 lines of Xorg.0.log intel X driver: 2.17.0 git-e2c8bac9 X server: 1.10.4 git-e3a24feb kernel: 3.1.0 mesa: 7.12 git-45bd5c43 gedit has consistently started showing blank application icons and invisible-text for me, and causes everything else to become sluggish while it opens. Other apps are also affected, but less consistently. When the issue first started, the high CPU usage and sluggishness would go away when gedit was minimized or completely hidden. (The sluggishness extended to the mouse cursor changing icons, too.) Closing gedit out took a loooong time, way longer than just having a lot of tabs open in it normally takes. The sluggishness, invisible-text and high CPU usage (maxing out one core) also appears sometimes when opening a text document in nano on the command line, or even opening a man page. Sometimes it also makes gnome-panel unresponsive, freezing the clock-display and system-monitor applet, even. dmesg is completely filled with messages like this: [1968361.628814] [drm:i915_gem_create_mmap_offset] *ERROR* failed to allocate offset for bo 0 [1968361.637942] [drm:i915_gem_create_mmap_offset] *ERROR* failed to allocate offset for bo 0 [1968361.647082] [drm:i915_gem_create_mmap_offset] *ERROR* failed to allocate offset for bo 0 [1968361.656186] [drm:i915_gem_create_mmap_offset] *ERROR* failed to allocate offset for bo 0 [1968371.544376] [drm:i915_gem_create_mmap_offset] *ERROR* failed to allocate offset for bo 0 The 'bo 0' bit is kinda weird... I checked Xorg.0.log, and it showed a bunch of these, and it's constantly printing more: [1969776.763] (WW) intel(0): intel_uxa_prepare_access: bo map (use gtt? 1, access 1) failed: No space left on device [1969776.782] (WW) intel(0): intel_uxa_prepare_access: bo map (use gtt? 1, access 1) failed: No space left on device [1969776.791] (WW) intel(0): intel_uxa_prepare_access: bo map (use gtt? 1, access 1) failed: No space left on device Starting a second X server in a guest session showed the same thing in Xorg.1.log, but, unlike in my main session, gedit and all other applications actually worked, with nothing invisible or unresponsive.
I've put a patch into 2.18.0 that allows you to disable the bo cache which appears to be the symptom behind the crashes. Can you please update and add Section "Driver" Option "BufferCache" "False" EndSection to your xorg.conf and see if that sweeps the issue under the carpet? *** This bug has been marked as a duplicate of bug 39552 ***
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