[Bug 45546] Magic The Gathering Arena updater: Unity fork of Mono-runtime reports 'Fatal error in gc, GetThreadContext failed' ( suspension of Mono-managed threads sometimes exceed 100ms)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45546

--- Comment #15 from Anton Romanov <theli.ua at gmail.com> ---
(In reply to Anastasius Focht from comment #13)
> (timing) analysis of the MTGA updater/Mono-Runtime on your own, backing
> whatever alternative conclusion you come to. Waiting for it ...
your own traces show that multiple threads are pending on get_thread_context.
get_thread_context is a wineserver call and wineserver is single threaded. That
means that they all get queued up and whoever is a bit later to the party has
its latency increased.

(In reply to Zebediah Figura from comment #14)
> I think Anton's point is it's not clear why the function should be
> *expected* possibly to never return; i.e. why was that contingency added in
> the first place?

Yup, why was it implemented in a such a way that it times out and returns
ACCESS DENIED instead of just waiting indefinitely.

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