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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111685">111685</a>
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<th>Summary</th>
<td>[Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>not set
</td>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>omar.squircleart@gmail.com
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=145359" name="attach_145359" title="Bisect log">attachment 145359</a> <a href="attachment.cgi?id=145359&action=edit" title="Bisect log">[details]</a></span>
Bisect log
To reproduce, pass the parameter amdgpu.dpm=0 to a kernel v5.2 or higher. The
kernel will hang at boot. v5.1 boots correctly.
I have bisected the kernel between v5.1 and v5.2, the bisect log is attached
below.
The last three lines from the log are as follow, the full log is attached
below:
kernel: BUG: unable to handle page fault for address: ffff91fe41bdf5f8
kernel: #PF: supervisor read access in kernel mode
kernel: #PF: error_code(0x0000) - not-present page</pre>
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