[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Bogus low-memory mode



On Wed, May 29, 2013 at 11:27:28AM +0200, Samuel Thibault wrote:
> Richard Braun, le Wed 29 May 2013 11:13:30 +0200, a écrit :
> > Also, considering GNU Mach currently only manages one contiguous block
> > of physical memory,
> 
> Not really. It is already able to skip some areas as unusable, see
> init_alloc_aligned().

Right, this could be used for small holes.

> > and some drivers (Linux drivers mostly IIRC) assume
> > that
> 
> Really? I've mostly seen Linux drivers use virtual memory, not physical
> memory.

Right too, I didn't find any actually used old-style direct mem_map
access.

The work then reduces to parsing the E820 memory map.

-- 
Richard Braun


Reply to: