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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Graphics performance drops + GPU hangs in ubuntu 13.10 (linux 3.11)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70594">70594</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Graphics performance drops + GPU hangs in ubuntu 13.10 (linux 3.11)
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>shuhao@shuhaowu.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=87809" name="attach_87809" title="i915_error_state">attachment 87809</a> <a href="attachment.cgi?id=87809&action=edit" title="i915_error_state">[details]</a></span>
i915_error_state
I'm experiencing some really bad GPU hangs + graphics overall slowdown while
playing games such as Kerbal Space Program.
This might be a temperature dependent thing, but right now the system is not
cooling itself via lowering the cpu clock when reaching ~95C like it did with
Ubuntu 13.04, but just mysteriously decreasing the performance (games become
very laggy) at ~86C (lm-sensor say that is the "high temperature") in Ubuntu
13.10. The laptop in question is a Thinkpad T420.
Here's some dmesg logs:
[ 3737.594116] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3737.594123] [drm] capturing error event; look for more information in
/sys/kernel/debug/dri/0/i915_error_state
[ 3737.606201] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x16358000 ctx 2) at 0x163587e4
[ 3759.646704] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3759.646763] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x283c6000 ctx 2) at 0x283c6718
[ 3777.660257] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3777.660316] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28486000 ctx 2) at 0x284861c8
[ 3802.679082] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3802.679152] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x16425000 ctx 2) at 0x164251c8
[ 3810.685111] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3810.685179] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x16506000 ctx 2) at 0x16506260
[ 3838.706195] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3838.706252] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28416000 ctx 2) at 0x284161c8
[ 3838.706256] [drm:i915_set_reset_status] *ERROR* render ring hung flushing bo
(0x7ee6000 ctx 2) at 0x284161c8
[ 3845.893990] hda-intel: IRQ timing workaround is activated for card #0.
Suggest a bigger bdl_pos_adj.
[ 3847.700964] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3847.701496] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x7ef0000 ctx 2) at 0x7ef01c8
[ 3863.725016] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3863.725060] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x170e0000 ctx 2) at 0x170e051c
[ 3863.738137] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for
forcewake old ack to clear.
[ 3866.978023] hda-intel 0000:00:1b.0: Unstable LPIB (14104 >= 1764); disabling
LPIB delay counting
[ 3891.710082] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3891.710171] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28cec000 ctx 2) at 0x28cec51c
[ 3910.748409] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3910.748494] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28d60000 ctx 2) at 0x28d601c8
[ 3928.749952] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 3928.750016] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x7eb4000 ctx 2) at 0x7eb41c8
[ 4020.843251] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4020.843325] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x283f6000 ctx 2) at 0x283f6534
[ 4033.841035] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4033.841115] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28cdf000 ctx 2) at 0x28cdf51c
[ 4071.845631] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4071.845731] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28f79000 ctx 2) at 0x28f7951c
[ 4071.859475] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for
forcewake old ack to clear.
[ 4134.917096] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4134.917173] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x28ed1000 ctx 2) at 0x28ed151c
[ 4165.928426] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4165.928481] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x283b6000 ctx 2) at 0x283b61c8
[ 4181.940477] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4181.940547] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x283a6000 ctx 2) at 0x283a6ae4
[ 4216.990852] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4216.990918] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x2af9b000 ctx 2) at 0x2af9b51c
[ 4226.998387] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4226.998463] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x2ae72000 ctx 2) at 0x2ae721c8
[ 4234.992398] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 4234.992479] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x2afba000 ctx 2) at 0x2afba1c8
Here's the error state:</pre>
</div>
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