Re: [PATCH 0/2] MR10248: ntdll: Prefer CONTEXT.MxCsr over CONTEXT.FltSave.MxCsr in NtSetContextThread() on x64.

[Paul Gofman (＠gofman)]

OpenJDK JVM runtime wants to comapre MxCsr with the initial one and restore the initial if that differs by setting CONTEXT.MxCsr (in exception handler). We currently prefer MxCsr from CONTEXT.FltSave but turns out that is not the case on Windows. Failure to actually update MxCsr from exception context when continuing execution causes inifinite exception loop.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10248#note_131376