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    <body><span class="vcard"><a class="email" href="mailto:marc@dragonfly.plus.com" title="Marc Thomas <marc@dragonfly.plus.com>"> <span class="fn">Marc Thomas</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - WARNING: CPU: 0 PID: 487 at drivers/gpu/drm/amd/amdgpu/../display /dc/gpio/gpio_base.c:64 dal_gpio_open_ex+0xc/0x30 [amdgpu]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105725">bug 105725</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">CC</td>
           <td>
                
           </td>
           <td>marc@dragonfly.plus.com
           </td>
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      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - WARNING: CPU: 0 PID: 487 at drivers/gpu/drm/amd/amdgpu/../display /dc/gpio/gpio_base.c:64 dal_gpio_open_ex+0xc/0x30 [amdgpu]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105725#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - WARNING: CPU: 0 PID: 487 at drivers/gpu/drm/amd/amdgpu/../display /dc/gpio/gpio_base.c:64 dal_gpio_open_ex+0xc/0x30 [amdgpu]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105725">bug 105725</a>
              from <span class="vcard"><a class="email" href="mailto:marc@dragonfly.plus.com" title="Marc Thomas <marc@dragonfly.plus.com>"> <span class="fn">Marc Thomas</span></a>
</span></b>
        <pre>I also see the WARNING messages in 4.17.10 and 4.18-rc6:

# grep WARNING dmesg.4.18.0-rc6
[    9.167769] WARNING: CPU: 4 PID: 1133 at
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_base.c:64
dal_gpio_open_ex+0xc/0x30 [amdgpu]
[    9.184735] WARNING: CPU: 4 PID: 1133 at
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c:488
dal_ddc_open+0x31/0xe0 [amdgpu]
[    9.246097] WARNING: CPU: 10 PID: 1134 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88
dm_dp_aux_transfer+0xa5/0xb0 [amdgpu]
[    9.411094] WARNING: CPU: 4 PID: 1133 at
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:88
dm_dp_aux_transfer+0xa5/0xb0 [amdgpu]


This is on an Ryzen 2700x based system with an RX480 GPU, connected to an
IIyama ProLite XB2380HS via DVI.

I'm also running Slackware-current Linux, so I wonder whether it's something in
Slackware's kernel config.

PS: This may be the same as <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - dal_gpio_open_ex+0x34/0x180 [amdgpu]"
   href="show_bug.cgi?id=106164">Bug 106164</a>.</pre>
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