Messages in this thread | | | Date | Fri, 4 Dec 1998 08:08:45 -0800 | From | "David S. Miller" <> | Subject | Re: Problem with 1G RAM |
| |
From: Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz> Date: Fri, 4 Dec 1998 10:43:33 +0100 (CET)
Yes, those are 64bit platforms. At least I hope it works well on sparc64, nobody confirmed it yet (somebody tried it with 2.5GB RAM though). sparc64 should support up to 1TB physical RAM, but most of the boxes won't allow you to put that much memory in, AFAIK it is something around 64GB or so at most one can put in at the moment.
Right.
In fact, even sparc32, although PAGE_OFFSET is there 0xf0000000, should support up to 2GB memory...
Right on sun4m, and you can get away with around 3.5GB on sun4d. The sun4m limitation is due to the IOMMU, the sun4d case is just a matter of running out of kernel + user address space. In these sparc32 cases the PAGE_OFFSET is set dynamically at boot time based upon how much memory is in the machine.
Later, David S. Miller davem@dm.cobaltmicro.com
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |