https://bugs.winehq.org/show_bug.cgi?id=45642
--- Comment #14 from Zebediah Figura z.figura12@gmail.com --- (In reply to Fabian Maurer from comment #13)
I don't follow, why does this mean we need to start a thread? All we need is the "1" at the right place in memory.
"The right place in memory" is the KSHARED_USER_DATA page. This page notably includes timestamps which must be kept up to date; see bug 29168 and the attached Staging patch.