lkml.org 
[lkml]   [2010]   [Jul]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 1/2] x86_64 page fault NMI-safe
> Why do we force IST use for NMI, btw? Maybe we shouldn't, and just use
> the normal kernel stack mechanisms?

If you don't use IST the SYSCALL entry is racy during the window
when RSP is not set up yet (same for MCE etc.)

-Andi
--
ak@linux.intel.com -- Speaking for myself only.


\
 
 \ /
  Last update: 2010-07-16 01:01    [W:0.267 / U:0.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site