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Date:      Wed, 29 Feb 2012 21:41:30 +0100
From:      Marius Strobl <marius@alchemy.franken.de>
To:        "Garrett R. Groesbeck" <garrett.groesbeck@gmail.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: FreeBSD 9.0-RELEASE - Trouble Booting on SPARC64 - kmem_suballoc error
Message-ID:  <20120229204130.GA61509@alchemy.franken.de>
In-Reply-To: <000001ccf4d6$66513b00$32f3b100$@gmail.com>
References:  <000001ccf4d6$66513b00$32f3b100$@gmail.com>

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On Sun, Feb 26, 2012 at 05:31:35PM -0500, Garrett R. Groesbeck wrote:
> Hello,
> 
> I hope you are well. I've been working on a Sun Blade 2000 with FreeBSD 9.0
> (sparc64) installed.
> 
> There's trouble with /boot/loader.conf when you try to boot the install disc
> (and even after the install when I try to boot up):
> 
> panic: kmem_suballoc: bad status return of 3
> 
> So when it gives me the chance to enter a boot command, I enter the
> following:
> 
> OK set hw.physmem=1048576000
> 

That apparently is a bug in the MI part of the VM triggered by the
highly fragment physical memory of b1k and b2k with 2 GB of RAM.
You can work around it by setting the vm.kmem_size_scale tunable to
2 without sacrificing physical memory. The latter meanwhile is also
the default set by the MD part, awaiting further clues from alc@.

Marius




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