<html>
    <head>
      <base href="https://bugs.freedesktop.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU hang on SI"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105952">105952</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU hang on SI
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/Vulkan/radeon
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>turo@alternativegames.net
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>GPU hangs when running any Vulkan program. I tested with vulkan-smoketest but
seems to happen with anything.

gmc_v6_0_process_interrupt: 28 callbacks suppressed
amdgpu 0000:01:00.0: GPU fault detected: 147 0x0f2a7001
amdgpu 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x0F47FFF9
amdgpu 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0A070001
amdgpu 0000:01:00.0: VM fault (0x01, vmid 5) at page 256376825, read from ''
(0x00000000) (112)

Kernel 4.15.11 (current in Debian testing), LLVM 6.0.0, Pitcairn.

Bisected to:
4ad7595f350462c704fbe5b2bd2ca406c904e78e is the first bad commit
commit 4ad7595f350462c704fbe5b2bd2ca406c904e78e
Author: Samuel Pitoiset <<a href="mailto:samuel.pitoiset@gmail.com">samuel.pitoiset@gmail.com</a>>
Date:   Wed Apr 4 12:12:03 2018 +0200

    radv: rename radv_emit_prefetch() to radv_emit_prefetch_L2()

    Signed-off-by: Samuel Pitoiset <<a href="mailto:samuel.pitoiset@gmail.com">samuel.pitoiset@gmail.com</a>>
    Reviewed-by: Bas Nieuwenhuizen <<a href="mailto:bas@basnieuwenhuizen.nl">bas@basnieuwenhuizen.nl</a>>
    Tested-by: Dieter Nützel <<a href="mailto:Dieter@nuetzel-hh.de">Dieter@nuetzel-hh.de</a>>


Despite the commit message it seems to contain functional changes, in
particular it seems to enable some DMA transfers on all chips. It looks it
doesn't work on SI.</pre>
        </div>
      </p>


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