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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [4.17-rc1] RIP: smu7_populate_single_firmware_entry.isra.6+0x57/0xc0 [amdgpu] RSP: ffffa17901efb930"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105760#c33">Comment # 33</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [4.17-rc1] RIP: smu7_populate_single_firmware_entry.isra.6+0x57/0xc0 [amdgpu] RSP: ffffa17901efb930"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105760">bug 105760</a>
from <span class="vcard"><a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>(In reply to Thomas Martitz from <a href="show_bug.cgi?id=105760#c21">comment #21</a>)
<span class="quote">>
> I assume this is some mapped memory and some HW component in the GPU writes
> to it while the CPU is using it, isn't it? If so, the proper fix would be to
> prevent that but I don't know what's the proper way of doing it in this
> context.</span >
The CPU is writing to a buffer that the GPU ultimately reads. Even if the data
in the buffer were corrupted by the GPU somehow, the CPU's pointer should still
be valid. Can you add slub_debug=FPZU to the kernel command line in grub and
attach your dmesg output?</pre>
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