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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 --- - imac 12,1 i915 crash when using x86 kernel with efi cross"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59431">59431</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>imac 12,1 i915 crash when using x86 kernel with efi cross
</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>kc@cobradevil.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>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=73107" name="attach_73107" title="kernel error message">attachment 73107</a> <a href="attachment.cgi?id=73107&action=edit" title="kernel error message">[details]</a></span>
kernel error message
Hi,
i have been waiting a while for new kernels to come up and see if this problem
got fixed, but that has not happened yet.
I'm trying to boot an x86 kernel with a 64 bit efi firmware using grub. This is
supported since kernel 3.4 but i cannot start the imac without disabling the
i915 driver. I can start the system with i915.disable=1 but without this option
it gives me the attached kernel message (picture).
When using the same kernel version but 64 bit, the system boots without
problems.
I'm not sure how I should report this bug so if more information is needed, I'm
happy to give that.
I have tested this with an ubuntu install using kernel version 3.5.0 till the
latest kernel 3.8 rc3.</pre>
</div>
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