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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - VMC page fault and Coherent Slave Error: Address violation after upgrading to 4.20"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109200">109200</a>
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<th>Summary</th>
<td>VMC page fault and Coherent Slave Error: Address violation after upgrading to 4.20
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>vicluo96@gmail.com
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=142927" name="attach_142927" title="kernel log on 4.20.arch1-1">attachment 142927</a> <a href="attachment.cgi?id=142927&action=edit" title="kernel log on 4.20.arch1-1">[details]</a></span>
kernel log on 4.20.arch1-1
I'm currently using AMD 2500U on Thinkpad E585 with Archlinux kernel
4.20.arch1-1. Everything works fine with 4.19.12. However after upgrading to
4.20.arch1-1, system crashes after gnome-shell starts. The error log reports:
Dec 31 11:57:09 lzThinkpad kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault
(src_id:0 ring:158 vmid:1 pasid:32768, for process gnome-shell pid 1008 thread
gnome-shel:cs0 pid 1022)
Dec 31 11:57:09 lzThinkpad kernel: amdgpu 0000:05:00.0: in page starting at
address 0x0000800100020000 from 18
Dec 31 11:57:09 lzThinkpad kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x0010013C
Dec 31 11:57:09 lzThinkpad kernel: mce: [Hardware Error]: Machine check events
logged
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Deferred error, no action
required.
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: CPU:0 (17:11:0)
MC20_STATUS[-|-|MiscV|-|AddrV
Dec 31 11:57:09 lzThinkpad kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault
(src_id:0 ring:158 vmid:1 pasid:32768, for process gnome-shell pid 1008 thread
gnome-shel:cs0 pid 1022)
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Error Addr:
0x00007ffcffffff00
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: IPID: 0x0000002e00000000,
Syndrome: 0x000000005b240205
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Coherent Slave Error:
Address violation.
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Deferred error, no action
required.
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Error Addr:
0x00007ffcffffff00
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: cache level: L3/GEN,
mem/io: IO, mem-tx: IRD, part-proc: SRC (no timeout)
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Coherent Slave Extended
Error Code: 1
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Error Addr:
0x00007ffcffffff00
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Error Addr:
0x00007ffcffffff00
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Error Addr:
0x00007ffcffffff00
Dec 31 11:57:09 lzThinkpad kernel: [Hardware Error]: Error Addr:
0x00007ffcffffff00
(more Error Addr lines omitted)</pre>
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