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Date:      Mon, 25 Feb 2002 12:25:30 +0900
From:      Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>
To:        Matthew Dillon <dillon@apollo.backplane.com>
Cc:        Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>, arch@FreeBSD.ORG
Subject:   Re: reclaiming v_data of free vnodes
Message-ID:  <200202250325.g1P3PVN9092431@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp>
In-Reply-To: <200202242041.g1OKfXt95731@apollo.backplane.com>
References:  <200202231556.g1NFu9N9040749@silver.carrots.uucp.r.dl.itc.u-tokyo.ac.jp> <200202242041.g1OKfXt95731@apollo.backplane.com>

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On Sun, 24 Feb 2002 12:41:33 -0800 (PST),
  Matthew Dillon <dillon@apollo.backplane.com> said:

Matthew>     cache).  330,000 vnodes and/or inodes is pushing what a kernel
Matthew>     with only 1G of KVM can handle.  For these machines you may want
Matthew>     to change the kernel start address from c000000 (1G of KVM) to
Matthew>     8000000 (2G of KVM).  I forget exactly how that is done.

Increasing KVM is not likely to help. The panic message in the Friday
night was something like this:

kmem_malloc(256): kmem_map too small: (~=200M) total allocated

in kmem_malloc() called by ffs_vget().

It may help me to expand kmem_map to 512M. This, however, scales the
number of vnodes/inodes to only up to about twice of the present
number.


Matthew>     Did kern.maxvnodes auto-size to 330,000 or did you set it up
Matthew>     there manually?  Or is kern.maxvnodes set lower and it blew it out
Matthew>     on its own due to load?

It is set automatically by the kernel.

-- 
Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> <tanimura@FreeBSD.org>

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