[Bug 104327] [IGT] gem_shrink subtest mmap-gtt oom

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104327

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
The problem here is that we end up with all 128 threads hitting the reclaim
logic; each threading pinning the object it has faulted. Only one thread can
make any progress through the oom-logic, but it can't make progress unless it
is the one holding struct_mutex. Ergo it reports failure and the oom-killer
proceeds without mercy.

There is certainly no quick fix for this.

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