Date: Thu, 26 Jun 2003 12:59:36 +0200 From: Socketd <db@traceroute.dk> To: Robert Watson <rwatson@freebsd.org>, current@freebsd.org Subject: Re: FreeBSD 5.1-Release freezes Message-ID: <20030626125936.76c8d6cd.db@traceroute.dk> In-Reply-To: <Pine.NEB.3.96L.1030625164029.58599A-100000@fledge.watson.org> References: <20030625191652.289ba4db.db@traceroute.dk> <Pine.NEB.3.96L.1030625164029.58599A-100000@fledge.watson.org>
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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; > > You can inspect them using a series of sysctls in the > security.mac.debug tree; I'd be interested to see how those values > change as you approach the hang. Hmm, this is strange. I build the same kernel with: makeoptions DEBUG=-g options DDB #Enable the kernel debugger options INVARIANTS #Enable calls of extra sanity checking options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS options WITNESS #Enable checks to detect deadlocks and cycles options MAC options MAC_DEBUG Now it doesn't hang and there is nothing in the logs. Btw here is some info: 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: 429 security.mac.debug.counters.devfsdirents: 96 Again I am not running anything but the base system and ssh. br socketd
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