Date: Fri, 11 Jul 2003 14:56:12 -0700 From: Peter Wemm <peter@wemm.org> To: des@des.no (Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?=) Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/amd64/include pmap.h vmparam.h Message-ID: <20030711215612.51C6F2A7EA@canning.wemm.org> In-Reply-To: <xzp4r1u9aid.fsf@dwp.des.no>
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Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?= wrote: > Peter Wemm <peter@FreeBSD.org> writes: > > Increase user VM space from 1/2TB (512GB) to 128TB. > > What's our file size limit these days? Thats a very good question. Last year, I was able to make Very Large sparse files on a ufs1 fs and mmap them to try and fill up the ia64 user VM. The 32 bit block numbers were the limit though. ufs2 should have no such problem itself, but if its living in a disklabel'ed drive, the physical limit for the partition is 1TB. If you use the raw disk without a label, or use gpt on the drive, that limit is gone too. Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5
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