[Bug 79670] [BYT regression ppgtt] igt/gem_exec_big fails, with ppgtt enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79670

--- Comment #18 from Guo Jinxian <jinxianx.guo at intel.com> ---
Created attachment 101329
  --> https://bugs.freedesktop.org/attachment.cgi?id=101329&action=edit
dmesg

(In reply to comment #17)
> Please retest on latest -nightly, that should have a fix.

The result on latest -nightly still fail.

Output:
[root at x-hsw27 tests]# ./gem_exec_big
IGT-Version: 1.7-g1b1f4b1 (x86_64) (Linux:
3.15.0-rc8_drm-intel-nightly_fff6c5_20140618+ x86_64)
Test assertion failure function exec, file gem_exec_big.c:90:
Last errno: 0, Success
Failed assertion: tmp == gem_reloc[0].presumed_offset
error: 7974912 == -1

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