Date: Mon, 16 May 2011 14:27:08 -0700 From: Neel Natu <neelnatu@gmail.com> To: rank1seeker@gmail.com Cc: freebsd-hackers@freebsd.org Subject: Re: MD ROOT and image size limitation (makes kernel panic) Message-ID: <BANLkTimQV%2B19g=9TbHCNq1VbDUFoWVaB4Q@mail.gmail.com> In-Reply-To: <20110516.183617.687.1@DEV> References: <20110516.183617.687.1@DEV>
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Hi, On Mon, May 16, 2011 at 11:36 AM, <rank1seeker@gmail.com> wrote: > I have a 4 GB or ram, so why kernel panic with my MD ROOT, if larger then > ~40 MB? > I've tried to split up root in 20MB image and usr in 160 MB > Via loader.conf root becomes md0 and usr md1 and panic occurs even when > they are split > > I had to get rid of md1, to be able to boot with md0 as a root. > > What exactly imposes limitation, inside kernel's code to SIZE of an image? > My hardware definatelly isn't ... > > Is this different on amd64? > I've tested this, only with i386. > We hit this problem at work and the solution was to increase NKPT. If you are using -current then NKPT is already a kernel config option. With 8.x you will need to modify <machine/pmap.h>. best Neel > > Domagoj S. > _______________________________________________ > 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" >
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