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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SNB] [i915] GPU HANG: ecode 6:0:0x85fffffc, in aquaria [2893], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99977#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SNB] [i915] GPU HANG: ecode 6:0:0x85fffffc, in aquaria [2893], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99977">bug 99977</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Ok, same error pops out:
ERROR: 0x00000012
Context page GTT translation generated a fault (GTT entry not valid)
TLB page VTD translation generated an error
Try:
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c
b/drivers/gpu/drm/i915/i915_gem_context.c
index 6827a85408bf..0910f59dfddf 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -105,6 +105,7 @@ static int get_context_size(struct drm_i915_private
*dev_priv)
case 6:
reg = I915_READ(CXT_SIZE);
ret = GEN6_CXT_TOTAL_SIZE(reg) * 64;
+ ret = 18 * PAGE_SIZE;
break;
case 7:
reg = I915_READ(GEN7_CXT_SIZE);
Something else to try is intel_iommu=igfx-off</pre>
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