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Date:      Thu, 21 Nov 2002 01:24:20 +0200
From:      "Petri Helenius" <pete@he.iki.fi>
To:        "David Schultz" <dschultz@uclink.Berkeley.EDU>
Cc:        <freebsd-questions@FreeBSD.ORG>, <freebsd-net@FreeBSD.ORG>
Subject:   Re: panic: kmem_map too small
Message-ID:  <11fd01c290eb$f48311e0$862a40c1@PHE>
References:  <0e3b01c28fc4$ff9a4ee0$862a40c1@PHE> <20021119152114.GA2228@HAL9000.homeunix.com> <3DDBDE2B.6050407@he.iki.fi> <20021120195919.GA679@HAL9000.homeunix.com>

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>
> Read LINT (or NOTES) carefully.  You can't set KVA_PAGES to 1024,
> because then your kernel would take up the entire 4 GB virtual
> address space.  Since the kernel must fit into 4 GB alongside
> every user process, that leaves you no room for programs.  Try a
> more reasonable value like 512 (2 GB).
>
Am I correct assuming that the default is 256? I´m not coming near this
utilization when the system panics.

With about 150M in use and KVA_PAGES undefined in config (default),
both 4.7-STABLE and 5.0-CURRENT panic (1G installed memory).

Pete


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