lkml.org 
[lkml]   [2014]   [Nov]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: frequent lockups in 3.18rc4
On Fri, Nov 21, 2014 at 08:48:58AM -0800, Linus Torvalds wrote:
>
> (The 64-bit mode also has a "WARN_ON_ONCE(in_nmi())", which I guess is
> good - but it's good because the 64-bit version is written the way it
> is).

Actually, in_nmi() is now safe for vmalloc faults. In fact, it handles the
clobbering of the cr2 register just fine. I wrote tests to test this, and
submitted patches to get rid of that warn on. But that never went through.

https://lkml.org/lkml/2013/10/15/894

-- Steve



\
 
 \ /
  Last update: 2014-11-21 18:41    [W:0.354 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site