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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@prime_busy@hang-blt - incomplete - kernel BUG at drivers/dma-buf/dma-buf.c:99!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111612#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@prime_busy@hang-blt - incomplete - kernel BUG at drivers/dma-buf/dma-buf.c:99!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111612">bug 111612</a>
from <span class="vcard"><a class="email" href="mailto:michael.j.ruhl@intel.com" title="Michael Ruhl <michael.j.ruhl@intel.com>"> <span class="fn">Michael Ruhl</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=111612#c2">comment #2</a>)
<span class="quote">> + BUG_ON(dmabuf->cb_shared.active || dmabuf->cb_excl.active);
>
> which is quite odd as the exported dmabuf has no bearing on the native
> object and its fences.</span >
Is it possible that this is occurring because of these patches:
67c97fb79a7f ("dma-buf: add reservation_object_fences helper")
dd7a7d1ff2f1 ("drm/i915: use new reservation_object_fences helper")
0e1d8083bddb ("dma-buf: further relax reservation_object_add_shared_fence")
5d344f58da76 ("dma-buf: nuke reservation_object seq number")
which was reverted by:
dma-buf: Restore seqlock around dma_resv updates
?
I am having difficulty placing these change.</pre>
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