[Bug 47571] Unable to start some Games in Wine with UMIP enabled on Ryzen 3000 series CPUs

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=47571

Brendan Shanks <bshanks at codeweavers.com> changed:

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                 CC|                            |bshanks at codeweavers.com

--- Comment #8 from Brendan Shanks <bshanks at codeweavers.com> ---
I've reproduced the problem with multiple games, it's caused because the kernel
only does UMIP instruction emulation for 32-bit processes. Some 64-bit games
also use these instructions and crash as a result. I'm testing a kernel patch
that will enable the emulation for 64-bit processes, for now the clearcpuid=514
kernel parameter should be used to disable UMIP.

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