lkml.org 
[lkml]   [2009]   [Jun]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: dma-debug: check_for_stack background?
On Sun, Jun 14, 2009 at 08:56:29PM +0200, Stefan Richter wrote:
> Hi,
>
> it took a while but I finally noticed that the DMA debug facility warns
> about mappings of on-stack memory. What's the problem with that? Are
> there architectures which don't support such mappings, or is it a
> question of caution not to DMA-map the stack?

I'm not sure if it is possible on all architectures, however the
DMA mapping documentation prohibts the use of stack memory.

--
Ben (ben@fluff.org, http://www.fluff.org/)

'a smiley only costs 4 bytes'


\
 
 \ /
  Last update: 2009-06-14 23:23    [W:0.057 / U:0.420 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site