On Mon, Mar 19, 2007 at 11:16:38AM +0800, Krishnappa Abhijith-A21204 wrote:
> Regarding Kernel mode in UML process. This question is on UML TT
> mode
> A UML process wil be in Kernel mode only for executing the getpid(), and
> also some signals is a UML specified stack.
And whenever the UML kernel executes a system call, of which there are
many.
> Also when UML process enters the KERNEL by the means described above the
> tracing is turned off, this is done for performance issues only
> right ?
No, it's done for security. A UML process must not be allowed to
execute system calls on the host. Only the UML kernel may do that.
Jeff
--
Work email - jdike at linux dot intel dot com
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