Comment # 1 on bug 1040463 from Takashi Iwai

The symptom sounds like the bug that was fixed recently by the upstream commit
4e6fdafa7ac395ad47a80a0e7b4fd1e11550f862
 drm/i915: Use pagecache write to prepopulate shmemfs from pwrite-ioctl

I tried to backport it, but totally untested.

A test kernel is being built in OBS home:tiwai:bnc1040463 repo.  Could you try
it later?  The kernel package should appear some time later (an hour or so) at
  http://download.opensuse.org/repositories/home:/tiwai:/bnc1040463/standard/