Messages in this thread | | | From | Jonathan George <> | Subject | Re: large memory support for x86 | Date | Thu, 12 Oct 2000 14:06:03 -0400 |
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>On Thu, 12 Oct 2000, Oliver Xymoron wrote: >> On Wed, 11 Oct 2000, Kiril Vidimce wrote: >> >> > My primary concern is whether a process can allocate more than 4 GB of >> > memory, rather than just be able to use more than 4 GB of physical >> > memory in the system. >> >> Define allocate. There are tricks you can play, but userspace is still a >> flat 32-bit address space per-process. > > >Allocate = malloc(). The process needs to be able to operate on >4 GB >chunks of memory. I understand that it's only a 32 bit address space >which is why I was surprised when I read that Linux 2.4.x will support >upwards of 64 GB's of memory. > > >Thanks for all the responses. > > >KV
You can, of course, bank switch memory by using a shared segment and cloning additional process heaps. Obviously a _single_ 32bit address space can only access 4GB at a time.
--Jonathan--
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