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Date:      Mon, 6 Dec 2010 14:30:01 -0800
From:      mdf@FreeBSD.org
To:        Marius Strobl <marius@alchemy.franken.de>
Cc:        src-committers@freebsd.org, Alan Cox <alc@rice.edu>, alc@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org, Max Khon <fjoe@samodelkin.net>
Subject:   Re: svn commit: r216016 - head/sys/sparc64/include
Message-ID:  <AANLkTinhyfHmdP4K5QVC5tv%2BGN%2BfzNpvU%2BV4JKF_cMHv@mail.gmail.com>
In-Reply-To: <20101206220733.GG38282@alchemy.franken.de>
References:  <201011281926.oASJQKiE040689@svn.freebsd.org> <20101128194542.GF9966@alchemy.franken.de> <AANLkTinwkVO%2BRkr7coYGhuMdZ_UQQa3_18c3D6fBLucA@mail.gmail.com> <20101129192308.GX80343@alchemy.franken.de> <20101129192417.GA18893@alchemy.franken.de> <4CF691A5.8070608@rice.edu> <20101202164727.GB38282@alchemy.franken.de> <4CF7D711.9040505@rice.edu> <20101206220733.GG38282@alchemy.franken.de>

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On Mon, Dec 6, 2010 at 2:07 PM, Marius Strobl <marius@alchemy.franken.de> wrote:
[lots of snip]

> With that one the kernel now survies memguard_init() but then panics
> right afterwards when kmeminit() calls kmem_suballoc():
> KDB: debugger backends: ddb
> KDB: current backend: ddb
> Copyright (c) 1992-2010 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>        The Regents of the University of California. All rights reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 9.0-CURRENT #18 r215249:216120M: Mon Dec  6 13:27:57 CET 2010
>    marius@v20z.zeist.de:/home/marius/co/build/head2/sparc64.sparc64/usr/home/m4
> WARNING: WITNESS option enabled, expect reduced performance.
> panic: kmem_suballoc: bad status return of 3

[more snip]

Shooting in the dark a little...

The bad status of 3 is presumably KERN_NO_SPACE because we attempted
to allocate too much space from the kernel_map.  What are the actual
values of vm_kmem_size, kernel_map->min_offset, kernel_map->max_offset
at panic time?  How much virtual space does sparc64 support (since
earlier it was reported it's computed based on hardware capability,
for this specific machine?)

Thanks,
matthew


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