[Bug 89959] [SKL]igt/gem_concurrent_blit subcase sporadically causes system hang and *ERROR* blitter: timed out waiting for forcewake ack to clear.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89959

Joonas Lahtinen <joonas.lahtinen at linux.intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #12 from Joonas Lahtinen <joonas.lahtinen at linux.intel.com> ---
This was earlier masked by an another bug (possibly e1000e memory corrupt one)
bufmgr would initialize properly only at random occasions, so the testcase
could not be run succesfully at all. Now that the bufmgr initializes properly
so able to proceed.

The gem_render_copy test runs for several thousand iterations without crashing.
I'm getting hangs with gem_concurrent_blit now, but they're different than the
earlier reported ones;

[  681.882688] gem_concurrent_blit: starting subtest
gtt-render-overwrite-source-forked
[  682.869957] [drm] RC6 on
[  686.869348] [drm] stuck on render ring
[  686.873886] [drm] GPU HANG: ecode 9:0:0x85dffffb, in gem_concurrent_
[12313], reason: Ring hung, action: reset
[  686.887309] drm/i915: Resetting chip after gpu hang
[  686.904592] gem_concurrent_blit: starting subtest
gtt-render-overwrite-source-read-bcs-forked

The error reports do not seem very coherent with single bug, I continue looking
at the problem I get.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150615/dc88a4a3/attachment.html>