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Date: Sun, 15 Jun 2003 09:30:15 -0700 (PDT)
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To: freebsd-bugs@FreeBSD.org
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
Subject: Re: kern/53350: fill up a malloc md-disk on 5.1-R causes panic 
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The following reply was made to PR kern/53350; it has been noted by GNATS.

From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To: Jay Kuri <jay@oneway.com>
Cc: FreeBSD-gnats-submit@freebsd.org
Subject: Re: kern/53350: fill up a malloc md-disk on 5.1-R causes panic 
Date: Sun, 15 Jun 2003 18:24:17 +0200

 >>Description:
 >          If you have a 5.1-R system with, say, 256M of ram
 >and you mdconfig one or several malloc md-devices totalling around 100M,
 >if you attempt to use them to capacity, the machine will panic.  The
 >message given is:
 >
 > panic: kmem_malloc(4096): kmem_map too small: 108347392 total allocated
 
 It's really very simple:  You ran out of kernel mapped memory ("KVM").
 
 Remedy: Don't Do That.
 
 See also: malloc(9), md(4)
 
 This PR can be closed.
 
 -- 
 Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
 phk@FreeBSD.ORG         | TCP/IP since RFC 956
 FreeBSD committer       | BSD since 4.3-tahoe    
 Never attribute to malice what can adequately be explained by incompetence.