lkml.org 
[lkml]   [2014]   [Apr]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86-64: espfix for 64-bit mode *PROTOTYPE*
On 04/22/2014 06:23 PM, Andrew Lutomirski wrote:
>
> What's the to_dmesg thing for?
>

It's for debugging... the espfix page tables generate so many duplicate
entries that trying to output it via a seqfile runs out of memory. I
suspect we need to do something like skip the espfix range or some other
hack.

> It looks sane, although I haven't checked the detailed register manipulation.
>
> Users of big systems may complain when every single CPU lines up for
> that mutex. Maybe no one cares.

Right now the whole smpboot sequence is fully serialized... that needs
to be fixed.

Konrad - I really could use some help figuring out what needs to be done
for this not to break Xen.

-hpa



\
 
 \ /
  Last update: 2014-04-23 04:21    [W:0.162 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site