Re: [ros-dev] Re: [ros-diffs] [greatlrd] 21611: kjk_hyperion : "Breaking auditing lock for a temporary fix: allow ExEnterCriticalRegionAndAcquireFastMutexUnsafe and ExReleaseFastMutexUnsafeAndLeaveCriticalRegion to be called from any thread; fixes UserEnterShared, UserEnterExclusive and UserLeave in win32k"

[Alex Ionescu]

KJKHyperion wrote:
>   Alex Ionescu wrote:
>  
> >   This fix is broken. The real problem is win32k,
> > you should fix that
> >  instead.
> >   
> >  
>  win32k has no "problem" under this point of view, and as much as we all
>  like to blame win32k, there is nothing inherently wrong in its use of
>  ExEnterCriticalRegionAndAcquireFastMutexUnsafe. If you want to explain,
>  please do
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>   
Like I said on the PM, those functions must not be called by non-system
threads.

I added those calls as a hack since win32k depended on the broken
implementation of fast mutexes.

Best regards,
Alex Ionescu