Messages in this thread | | | Date | Fri, 8 Aug 2008 16:15:08 -0700 | From | Suresh Siddha <> | Subject | Re: Kernel oops with 2.6.26, padlock and ipsec: probably problem with fpu state changes |
| |
On Fri, Aug 08, 2008 at 04:10:42PM -0700, Wolfgang Walter wrote: > By the way, if padlock is used from userspace, could this be aproblem, too? I > mean not via the kernel crypto layer but directly. I think these extensions > are not restricted to a privileged user.
No. Userspace will not have any such issue. Kernel is special, as it has to preserve the user-space context and also use these instructions for its own kernel purpose.
It is ok to get a spurious DNA from userland.
thanks, suresh
| |