[Bug 109677] [CI][SHARDS] igt at gem_mmap_gtt@hang - fail - Timed out waiting for children

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109677

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|REOPENED                    |RESOLVED

--- Comment #11 from Chris Wilson <chris at chris-wilson.co.uk> ---
Optimistically,

commit 3499c5eb17054e2abd88023fe962768140d24302 (upstream/master,
origin/master, origin/HEAD)
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Sep 24 13:15:03 2019 +0100

    i915/gem_map_gtt: Escape from slow forked GTT access

    Beware the slithy t'oves.

    Forked GTT access on icl is notoriously slow, so rather than spend an
    eternity checking the whole object, check for a completion event after
    handling the pagefault. It's is the race of the pagefault vs reset that
    we care most about, and we expect the bug to result in the pagefault
    being blocked indefinitely, so checking afterwards does not reduce
    coverage.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
    Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

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