[Bug 54111] [IVB]I-G-T prime test/ module_reload fail with *ERROR* “Memory manager not clean?=.=?UTF-8?Q? Delaying takedown”

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54111

--- Comment #14 from Imre Deak <imre.deak at gmail.com> ---
(In reply to comment #13)
> I think Imre is now banging his head against this ...

If think commit be8a42ae60 fixed the issue in the bug description. comment #10
seems to support this and I can't reproduce that issue with current
drm-intel-nightly either.

Unfortunately commit be8a42ae60 also introduced two new regressions. The first
is when i915_gem_prime_import() fails for a self imported object and we do an
extranous dma_buf_put in drm_gem_prime_fd_to_handle(). The second is not taking
any reference on dma_buf on the import path for self imported objects that
leads to the 'prime_self_import: prime_self_import.c:61: check_bo: Assertion
`ptr1' failed.' error.

Dave Airlie is working on a final fix for the second regression. Until that's
ready could people try the following two patches? They should fix both of the
above issues:

https://patchwork.kernel.org/patch/2414801/

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