Re: [PATCH v7 0/2] MR2044: ntoskrnl.exe: Implement acquiring and releasing guarded mutexes

[Jactry Zeng (＠jactry)]

On Thu Jan 22 06:50:56 2026 +0000, Colleirose wrote:
> Hi all,
> The lack of these functions is causing the game Duet Night Abyss to fail
> to open since the latest release. Looking on the Proton issue tracker,
> there are at least 2 other games that fail for the same reason.
> This merge request has been open since 2023 without any further
> progress. Is there any update on whether the tests are failing due to
> this code or for unrelated issues, and what other progress needs to be made?
> If OP no longer has interest in fixing this issue I would be willing to
> look into fixing it myself to fix the broken apps.
> Hi,

Does this series exactly fix the issue and make those games playable? AFAIU, it is AntiCheatExpert requires these functions, and sometimes just implementing a couple of functions is far from making the game playable; what is worse, maybe some other game will become unplayable because the exposing of these functions guides them to another code path (e.g. it goes further in the anti-cheat detection) that has issues on Wine.

btw, Arknights: Endfield, which ships AntiCheatExpert, depends on KeAcquireGuardedMutex() too.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/2044#note_127675