Kernel Dump

[David O'Brien]

On Wed, Jun 22, 2005 at 11:23:25PM -0700, Peter Wemm wrote:
> IA64 and Sparc systems usually had sparse memory configurations and the 
> old raw format didn't have any facility to avoid storing holes.
..
> I've just rewritten the AMD64 crashdump support to use ELF like ia64.  
> In fact, I reused most of the ia64 code. We ran into serious problems 
> at work, first on the amd64 platform and now also the i386 platform.  
> The problem is that x86 machines are increasinly having memory holes.  
> The simplistic dump code has no way to skip the memory hole and tries 
> to dump things like the AGP frame buffer, pci card MMIO space, 
> PCI-Express configuration space (this means accessing hardware!!) and 
> so on.

Hi Peter,

This is great news!  I'm really happy to see this work.  Will we be able
to switch to this for 6.0R?

-- 
-- David  (obrien at FreeBSD.org)