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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 --- - [HSW]dmesg with <6> error while booting system"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59549">59549</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>yangweix.shui@intel.com
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW]dmesg with <6> error while booting system
</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>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.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=73239" name="attach_73239" title="dmesg_all">attachment 73239</a> <a href="attachment.cgi?id=73239&action=edit" title="dmesg_all">[details]</a></span>
dmesg_all
System Environment:
--------------------------
Arch: x86_64
Platform: Haswell
Kernel: (drm-intel-fixes) 0f3b6849dd55943d915f4b461d7db5e8308d4083
Bug detailed description:
-------------------------
It happens on haswell with -fixes kernel. It also happens on -queued kernel.
I can't catch a good commit.
dmesg:
<6>[ 3.963129] [drm] Initialized drm 1.1.0 20060810
<6>[ 3.966972] [drm] Memory usable by graphics device = 2048M
<6>[ 3.966976] fb: conflicting fb hw usage inteldrmfb vs VESA VGA - removing
generic driver
<3>[ 3.982474] [drm:i915_write32] *ERROR* Unknown unclaimed register before
writing to c5100
<6>[ 3.982510] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
<6>[ 3.982511] [drm] Driver supports precise vblank timestamp query.
<6>[ 4.233857] [drm] GMBUS [i915 gmbus dpd] timed out, falling back to bit
banging on pin 6
<6>[ 4.260260] fbcon: inteldrmfb (fb0) is primary device
<6>[ 4.469661] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
<6>[ 4.478856] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on
minor 0
<6>[ 5.710454] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Reproduce steps:
----------------
1. dmesg -r | egrep "<[1-6]>" |grep drm</pre>
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