Date: Tue, 11 Oct 2011 20:43:29 +0200 From: rank1seeker@gmail.com To: hackers@freebsd.org Subject: Re: 8.2R i386 bassed md root, doesn't like all machines Message-ID: <20111011.184329.046.1@DEV> In-Reply-To: <4E5F8E91.3060206@gmail.com> References: <20110901.131731.343.1@DEV> <4E5F8E91.3060206@gmail.com>
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----- Original Message ----- From: Mark Tinguely <marktinguely@gmail.com> To: rank1seeker@gmail.com Cc: hackers@freebsd.org Date: Thu, 01 Sep 2011 08:54:25 -0500 Subject: Re: 8.2R i386 bassed md root, doesn't like all machines > On 9/1/2011 8:17 AM, rank1seeker@gmail.com wrote: > > Works excellent! > > I boot it from USB stick. > > > > Now I added ~150 MB of ports to it. > > >From that point on, it doesn't boot on all machines. > > > > Booting 2 times in a row on laptop with 4 gb ram: > > http://www.starforce.biz/md_root_1.jpg > > http://www.starforce.biz/md_root_2.jpg > > > > Without ports, it did booted fine! > > > > Then I plug it in desktop with 2 GB of ram and booted it and it works! > > I've did it again, just to be sure. > > > > Back to my laptop and same fail again. > > > > > > Domagoj Smolčić > > _______________________________________________ > > freebsd-hackers@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > > > > This must be a 32 bit i386 kernel. > > From the vm_thread_new() error messages, your kernel virtual memory map > is depleted. > > The OS uses KVA for a physical page attribute table. Therefore the 4GB > machine will use more KVA than a 2GB. Apparently this difference is a > enough to cause you problems. > > Either increase your KVA (KVA_PAGES setting in your kernel configuration > file; see sys/i386/include/pmap.h look for values) or decrease your KVA > use (memory drive?). > I see. It worked. Yes it is 8.2 i386, as it is the only that has NKPT kernel option. For other archs, I would have to edit src code. What would be the formula, to set the KVA_PAGES to, if I know the size of MD(in Mb), so it would work on all machines, regardled of RAM amount (for i386, all less then 4 GB) Domagoj Smolčič
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