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<th>Priority</th>
<td>medium
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bisected, regression] flood of GPU fault detected in logs caused by 9af20... drm/radeon: fix fence locking in the pageflip callback"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59089">59089</a>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Summary</th>
<td>[bisected, regression] flood of GPU fault detected in logs caused by 9af20... drm/radeon: fix fence locking in the pageflip callback
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<th>Severity</th>
<td>normal
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>All
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<th>Reporter</th>
<td>alexandre.f.demers@gmail.com
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<th>Hardware</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Version</th>
<td>git
</td>
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<th>Component</th>
<td>Drivers/Gallium/r600
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<th>Product</th>
<td>Mesa
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<p>
<div>
<pre>GPU fault detected flood in logs (dmesg, kernel, errors and everything) of the
following form:
[ 533.928472] radeon 0000:03:00.0: GPU fault detected: 146 0x00335514
[ 533.928477] radeon 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR
0x00000000
[ 533.928483] radeon 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x00000000
>From time to time, there will be an address value different from 0x00000000.
They are produced at an awful rate, producing GB of logs in no time.
Appeared in kernel 3.8.0-rcX using a cayman GPU (HD 6950).
Bisecting to identify when the flood first appeared points at:
Commit: 4ac0533abaec2b83a7f2c675010eedd55664bc26
Author: Jerome Glisse <<a href="mailto:jglisse@redhat.com">jglisse@redhat.com</a>> 2012-12-13 12:08:11
Committer: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>> 2012-12-14 10:45:24
Parent: 9af20792124850369e764965690b99b20623dfc4 (drm/radeon: fix fence locking
in the pageflip callback)
Branch: remotes/origin/master
Follows: v3.7-rc7
Precedes: v3.8-rc1
drm/radeon: fix htile buffer size computation for command stream checker
Fix the size computation of the htile buffer.
Signed-off-by: Jerome Glisse <<a href="mailto:jglisse@redhat.com">jglisse@redhat.com</a>>
Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
Maybe be related to some of the crashes seen in <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Random crashes on CAYMAN"
href="show_bug.cgi?id=58667">bug 58667</a>.</pre>
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