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Date: Thu, 26 Jun 2003 15:11:13 +0200
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To: Robert Watson <rwatson@freebsd.org>, current@freebsd.org
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Subject: Re: FreeBSD 5.1-Release freezes
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On Wed, 25 Jun 2003 16:44:56 -0400 (EDT)
Robert Watson <rwatson@freebsd.org> wrote:

> The code most likely to cause a memory leak in the MAC Framework is
> the label management code, since that's the only code that really does
> much in the way of memory allocaiton.  Try compiling options MAC_DEBUG
> into your kernel, which causes the MAC Framework to track the number
> of labels it has allocated/free'd in a series of variables: 
> 
> static unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs,
>     nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents,
>     nmacipqs, nmacpipes, nmacprocs;

After running a few commands, ssh logins and loading mac_seeotheruids we
now have:
security.mac.debug.label_fallback: 0
security.mac.debug.counters.mbufs: 0
security.mac.debug.counters.creds: 17
security.mac.debug.counters.ifnets: 3
security.mac.debug.counters.ipqs: 0
security.mac.debug.counters.bpfdescs: 0
security.mac.debug.counters.sockets: 7
security.mac.debug.counters.pipes: 2
security.mac.debug.counters.procs: 63
security.mac.debug.counters.mounts: 6
security.mac.debug.counters.temp: 0
security.mac.debug.counters.vnodes: 524
security.mac.debug.counters.devfsdirents: 99

Loading mac_seeotheruids made vnodes increase a little, but it has (very
slowly) been increasing and as you can see is now at 524 (don't know if
this means anything).

br
socketd