sysenter patch question

Scott Long scottl at
Sat Jan 14 07:32:03 PST 2006

Divacky Roman wrote:
> hi
> there's a patch which makes fbsd use sysenter. why wasnt it commited? is there
> any plan to make it into kernel? or was it just forgotten?
> thnx for the info
> roman

I was the last to work on the patch, and that was about a year or so
ago.  It worked fine under fairly simple processes, but trying to run
things like KDE and Mozilla made it blow up fairly quickly.  I suspect
that it has something to do with thread upcalls, but I never got around
to figuring it out.  If someone wants to pick it up, that would be
great.  Note that this only matters for i386; amd64 has always had its
own version of sysenter that it uses.


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