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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Packet0 not allowed and GPU fault detected errors with Serious Engine games"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87278#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Packet0 not allowed and GPU fault detected errors with Serious Engine games"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87278">bug 87278</a>
from <span class="vcard"><a class="email" href="mailto:alexandre.f.demers@gmail.com" title="Alexandre Demers <alexandre.f.demers@gmail.com>"> <span class="fn">Alexandre Demers</span></a>
</span></b>
<pre>(In reply to Daniel Scharrer from <a href="show_bug.cgi?id=87278#c0">comment #0</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=110808" name="attach_110808" title="dmesg output with the GPU fault errors filtered out">attachment 110808</a> <a href="attachment.cgi?id=110808&action=edit" title="dmesg output with the GPU fault errors filtered out">[details]</a></span>
> dmesg output with the GPU fault errors filtered out
>
> Running Serious Sam 3 or The Talos Principle spams dmesg with thousands of
> these errors:
>
> [ 6001.212237] radeon 0000:01:00.0: GPU fault detected: 147 0x02528801
> [ 6001.212243] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR
> 0x0FF02192
> [ 6001.212246] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS
> 0x12088001
> [ 6001.212249] VM fault (0x01, vmid 9) at page 267395474, read from TC (136)
>
> There are also a few "Packet0 not allowed" errors (followed by a hex dump):
>
> [15446.473341] radeon 0000:01:00.0: Packet0 not allowed!
>
> So far it's only these errors in dmesg - I haven't observed any actual
> rendering issues, crashes, GPU lockups because of this.
>
> I have only attached a filtered kernel log with the GPU fault errors removed
> - the full log is available at <a href="http://constexpr.org/tmp/serious-dmesg.log">http://constexpr.org/tmp/serious-dmesg.log</a>
> (140 MiB).
>
> Both of these games use the Serious Engine 3.5 (Serious Sam 3) or 4 (The
> Talos Principle). This is also reproducible with The Talos Principle Public
> Test which as of now is still available as a free download on Steam.
>
> Kernel: 3.18.0-gentoo
> GPU: Radeon HD 7950
> Driver: radeonsi, Mesa 10.5.0-devel (git-ff96537)
>
> This might be related to <a class="bz_bug_link
bz_status_NEW "
title="NEW - [radeonsi] radeon 0000:01:00.0: Packet0 not allowed!"
href="show_bug.cgi?id=84500">bug 84500</a> - however those spurious Packet0 have
> been gone for a while now with updated Mesa - now I got them again but only
> while running Serious Engine games.</span >
I haven't had a look at the log when launching SS3, but for sure it crashes in
no time. It crashes in no time once in a game. It could be related to your bug.
However, I think the VM and the Packet 0 are different bugs. I'll have a look
in the logs if I get something similar.</pre>
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