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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - "Hung GPU" errors when resuming from suspend-to-disk on kernel 3.8 (SNB/HD3000)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=64725">64725</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>"Hung GPU" errors when resuming from suspend-to-disk on kernel 3.8 (SNB/HD3000)
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>thiago@kde.org
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=79482" name="attach_79482" title="i915_error_state after the hung messages">attachment 79482</a> <a href="attachment.cgi?id=79482&action=edit" title="i915_error_state after the hung messages">[details]</a></span>
i915_error_state after the hung messages
When resuming a hibernated Linux 3.8 (suspend-to-disk), I get the following
errors in dmesg:
[133824.298846] Restarting tasks ... done.
[133824.302138] video LNXVIDEO:00: Restoring backlight state
[133824.574336] [drm] Enabling RC6 states: RC6 off, RC6p off, RC6pp off
[133839.582069] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed...
GPU hung
[133839.582074] [drm] capturing error event; look for more information in
/debug/dri/0/i915_error_state
[133847.567832] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed...
GPU hung
[133855.565593] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed...
GPU hung
[-- a couple more --]
[133873.569751] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring
wedged!
[133873.570591] [drm:i915_reset] *ERROR* Failed to reset chip.
Similar hung messages are to be found in Xorg.0.log, but I failed to capture it
before rebooting.
This is a regression from 3.7. With the exact same userspace, resume-from-disk
works on all 3.7 kernels I've tried, and it fails on all 3.8 kernels I've
tried.
Steps to reproduce:
1) suspend-to-disk
2) resume-from-disk
I initially thought this was related to suspend-to-disk while an extra output
was enabled, besides LVDS, and resuming while that output was not connected.
That particular bug happened in 3.5 or 3.6, but disappeared in 3.7.
Hardware:
- SandyBridge (Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz)
- Dell Latitude E6420, BIOS version A05
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Dell Device 0493
Flags: bus master, fast devsel, latency 0, IRQ 43
Memory at e1400000 (64-bit, non-prefetchable) [size=4M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 4000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel:
Stock Fedora 17 kernels.
Last one to show failure: kernel-3.8.11-100
(there's an updated 3.8.12, but I haven't tested)</pre>
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