Re: [PATCH] linux-2.5.43_vsyscall_A0

Andi Kleen
2002-10-21T16:22:02Z

On Mo\fn, Oct 21, 2002 at 05:43:29PM +0200, Stephen Hemminger wrote:
> Would it be possible to allow UML to use mmap to put an alternative text
> page at the fixed address with the UML appropriate version of the
> vsyscall?
nly with lots of special cases in the VM. vsyscall is currently located
in the kernel fixing, giving user mmap access to kernel mappings
would need quite some changes.

Global sysctl is much easier and safer. As soon as x86-64 gets useful
vsyscalls again I will implement it (as I said earlier it is currently
turned off because of problems with the timers)

-Andi