[Bug 47198] League of Legends 9.10+ crashes after champion select (anticheat, access of 64-bit TEB from WoW64 via %gs register)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=47198

--- Comment #115 from Zebediah Figura <z.figura12 at gmail.com> ---
(In reply to David Torok from comment #114)
> Well, this was a while back but as I remember I don't believe syscalls were
> executed after the far jump that changes %cs. Between the 2 far jump %cs
> changes only the 64 bit TEB->PEB access happened. So as far as I understand,
> there is no need to be able to "directly execute" 64 bit syscalls from a 32
> bit process. The normal "syscall path" for this application follows wine's
> own syscall thunks. (Therefore also eliminating the need to solve bug 48291)

>From the analysis shared with me by Andrew Wesie a couple years ago I believe
there were direct SYSCALL instructions. Note also the contents of attachment
64481. Perhaps that's changed since then.

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