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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - AMD Navi GPU frequent freezes on both Manjaro/Ubuntu with kernel 5.3 and mesa 19.2 -git/llvm9"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111481#c54">Comment # 54</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - AMD Navi GPU frequent freezes on both Manjaro/Ubuntu with kernel 5.3 and mesa 19.2 -git/llvm9"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111481">bug 111481</a>
from <span class="vcard"><a class="email" href="mailto:git@dougty.com" title="Doug Ty <git@dougty.com>"> <span class="fn">Doug Ty</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=145439" name="attach_145439" title="Additional log of divide error">attachment 145439</a> <a href="attachment.cgi?id=145439&action=edit" title="Additional log of divide error">[details]</a></span>
Additional log of divide error
(In reply to Matthias Müller from <a href="show_bug.cgi?id=111481#c52">comment #52</a>)
<span class="quote">> Comment on <span class=""><a href="attachment.cgi?id=145436" name="attach_145436" title="Log of divide error">attachment 145436</a> <a href="attachment.cgi?id=145436&action=edit" title="Log of divide error">[details]</a></span>
> Log of divide error
>
> i just encountered a "random" freeze, too.
> And because it seems to be something "new", i thought i'd post it here -
> seems to be some kind of null pointer from what i found?</span >
I've also been getting this, albeit very rarely. It doesn't seem to happen with
older firmware (ie. Jul 14th firmware extracted from Fedora's linux-firmware
package), only the newer firmware from the ~agd5f/radeon_ucode repo causes
this.
I figured maybe it had to do with PCIe bandwidth, but it occurs on 3.0 as well
as 4.0. Even occurs with system-wide AMD_DEBUG=nodma in my /etc/environment.
There is no amdgpu error in journalctl, just the above. Screen freezes & I have
to reboot with REISUB.
Perhaps this is a different issue, and if so, perhaps we should make a separate
bug report for it?</pre>
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