Messages in this thread | | | Date | Sun, 14 Jun 2009 22:20:18 +0100 | From | Ben Dooks <> | Subject | Re: 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'
| |