Date: Fri, 20 Jun 2003 16:35:25 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: Peter Wemm <peter@wemm.org> Cc: cvs-src@FreeBSD.org Subject: Re: cvs commit: src/sys/amd64/amd64 pmap.c Message-ID: <ybsu1alqk02.wl@ett.sat.t.u-tokyo.ac.jp> In-Reply-To: <ybswufhqqyy.wl@ett.sat.t.u-tokyo.ac.jp> References: <ybs1xxpsj4n.wl@ett.sat.t.u-tokyo.ac.jp> <20030620044141.8B0652A8C8@canning.wemm.org> <ybswufhqqyy.wl@ett.sat.t.u-tokyo.ac.jp>
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At Fri, 20 Jun 2003 14:04:53 +0900, Hidetoshi Shimokawa wrote: > > At Thu, 19 Jun 2003 21:41:41 -0700, > Peter Wemm wrote: > > > > Hidetoshi Shimokawa wrote: > > > At Thu, 19 Jun 2003 12:02:04 -0700, > > > Peter Wemm wrote: > > > > > Modified files: > > > > > sys/amd64/amd64 pmap.c > > > > > Log: > > > > > Fix direct map page table for 2GB+ physical memory. > > > > > > > > Thank you! :-) > > > > > > > > Cheers, > > > > -Peter > > > > > > Do you have any plan to increase KVA up to 512GB? > > > struct vm_page consumes 250MB space for 8GB memory. > > > > Yes, once I return from my trip, which should be next week. It shouldn't > > be too hard, it probably is a relatively simple matter of increasing the > > slots reserved for growing KVM, and teaching pmap_growkernel how to grow > > downwards.... OK, maybe thats easier said than done. :-) > > I though there are something other than that to change KERNBASE. > I understand what we should do. I made patch for that, http://www.sat.t.u-tokyo.ac.jp/~simokawa/amd64/kva.patch.txt (include /dev/kmem fix for direct map and debug code) I failed to link kernel for 2GB+ KVA space (set KPDPI to (NPDPEPG-4)). Linker produces the following errors: locore.o: In function `btext': /usr/obj/amd64/export/home/src/sys/FireWire/{standard input}:53: relocation truncated to fit: R_X86_64_32S .bss cam.o: In function `cam_fetch_status_entry':/export/home/src/sys/cam/cam.c:187:relocation truncated to fit: R_X86_64_32S .text ..... Do you have any idea? /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html
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