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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - segfault in radeonsi HEVC hardware decoding with yuv420p10le"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110702#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - segfault in radeonsi HEVC hardware decoding with yuv420p10le"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110702">bug 110702</a>
from <span class="vcard"><a class="email" href="mailto:pierre-eric.pelloux-prayer@amd.com" title="Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>"> <span class="fn">Pierre-Eric Pelloux-Prayer</span></a>
</span></b>
<pre>(In reply to Christian König from <a href="show_bug.cgi?id=110702#c10">comment #10</a>)
<span class="quote">> (In reply to Pierre-Eric Pelloux-Prayer from <a href="show_bug.cgi?id=110702#c9">comment #9</a>)
> > The driver fails when trying to allocate a buffer for this video with a
> > ENOMEM error (the requested size is 3 GB).
>
> Well that strongly sounds like we miscalculated the necessary size somewhere.</span >
Indeed.
The size is computed by the `calc_ctx_size_h265_main10()` function.
I'm not familiar enough with hevc to fix it though (but the calculation seems
to overflow because context_buffer_size_per_ctb_row is 1GB and is multiplied by
max_references (= 23) and the result is stored in an unsigned int).</pre>
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