(In reply to Emil Velikov from comment #3)
> Guys have you actually looked at the following line ?
> Aperture size is 268435456 MiB -- That is 256 TiB !!!
> 
> That's rather impossible amount if you ask me. So there's either a bug in
> IGT's gem_aperture_size() or one of the two ioctls
> (I915_GEM_CONTEXT_GETPARAM I915_GEM_GET_APERTURE) that it uses.
> 
> With a couple of print statements you should be able to quickly track the
> exact offender. Good luck !

Yes, we saw it. The bug is reported to IGT (not to DRM/Intel). We propose the
test should skip.

I just checked on our IVB platform with 32 GB of memory. Looks like we would
need now 2 TB.

root@IVB102:/opt/X11R7/src/intel-gpu-tools/tests# ./gem_userptr_blits
--run-subtest mlocked-normal-sync
IGT-Version: 1.15-ge3abb20 (x86_64) (Linux: 4.7.0-nightly+ x86_64)
Aperture size is 2048 MiB
Total RAM is 31,945 MiB
Testing unsynchronized mappings...
Testing synchronized mappings...
Killed