DragonFly BSD
DragonFly kernel List (threaded) for 2004-04
[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]

Re: nvidia machdep.c patch still useful ?


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 7 Apr 2004 09:04:01 -0700 (PDT)

:My kernel's not quite up-to-date, but the snippet below successfully 
:queries and sets %fs.
:
:I'm fairly certain that setting any i386 segment register (except %cs) 
:is a non-privileged instruction.  Of course, the descriptor must support 
:the appropriate access to actually *use* it...
:

    Yup, ok.  Hmm.  Well, 5.x is still restoring %fs so I think for now
    we should do the same, especially since fixing %gs seems to have 
    cleaned up known existing userland problems.

						-Matt



[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]