<div dir="ltr"><div>Indeed, you're right.</div><div><br></div><div>Marek<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 8, 2019 at 4:59 PM Yang, Philip <<a href="mailto:Philip.Yang@amd.com">Philip.Yang@amd.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Marek,<br>
<br>
I guess you are using old kernel config with 5.x kernel, and the kernel <br>
config option CONFIG_HMM is missing because the dependency option <br>
CONFIG_ZONE_DEVICE is missing in old config file. Please update your <br>
kernel config file to enable option CONFIG_ZONE_DEVICE.<br>
<br>
You should have this message in dmesg log:<br>
<br>
"HMM_MIRROR kernel config option is not enabled, "<br>
"add CONFIG_ZONE_DEVICE=y in config file to fix<br>
<br>
Philip<br>
<br>
<br>
On 2019-04-08 4:46 p.m., Marek Olšák wrote:<br>
> Hi,<br>
> <br>
> amdgpu_mn_register fails with -ENODEV in amdgpu_gem_userptr_ioctl.<br>
> <br>
> The regression happened within the last 1-2 months.<br>
> <br>
> Marek<br>
> <br>
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</blockquote></div>