Date: Thu, 26 Nov 2009 16:07:26 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: John Hickey <jhickey@ISI.EDU> Cc: freebsd-bugs@freebsd.org Subject: Re: debugging a mbuf leak Message-ID: <20091126160522.T37440@maildrop.int.zabbadoz.net> In-Reply-To: <20091123213609.GD19973@pod.isi.edu> References: <20091123213609.GD19973@pod.isi.edu>
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On Mon, 23 Nov 2009, John Hickey wrote: Hi John, > One of our main servers here has a slow mbuf leak. We are not sure what > is causing it at this point. Does anyone have some pointers on how to > dig further into this? There are a couple of things to check: 1) is it really a leak? This can easily be tested by going down to single user and see if the mbufs got freed again. 2) maybe starting with this first: which version of freebsd is this? > Mon Nov 23 13:19:15 PST 2009 > > 16364/2836/19200 mbufs in use (current/cache/total) > 928/2216/3144/132096 mbuf clusters in use (current/cache/total/max) > 512/1664 mbuf+clusters out of packet secondary zone in use > (current/cache) > 0/135/135/66048 4k (page size) jumbo clusters in use > (current/cache/total/max) > 0/0/0/33024 9k jumbo clusters in use (current/cache/total/max) > 0/0/0/16512 16k jumbo clusters in use (current/cache/total/max) > 5947K/5681K/11628K bytes allocated to network (current/cache/total) > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0/5/33280 sfbufs in use (current/peak/max) > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > 0 requests for I/O initiated by sendfile > 0 calls to protocol drain routines > > Mon Nov 23 13:24:21 PST 2009 > > 18085/2660/20745 mbufs in use (current/cache/total) > 923/2455/3378/132096 mbuf clusters in use (current/cache/total/max) > 512/1664 mbuf+clusters out of packet secondary zone in use > (current/cache) > 0/135/135/66048 4k (page size) jumbo clusters in use > (current/cache/total/max) > 0/0/0/33024 9k jumbo clusters in use (current/cache/total/max) > 0/0/0/16512 16k jumbo clusters in use (current/cache/total/max) > 6367K/6115K/12482K bytes allocated to network (current/cache/total) > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0/5/33280 sfbufs in use (current/peak/max) > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > 0 requests for I/O initiated by sendfile > 0 calls to protocol drain routines > > _______________________________________________ > freebsd-bugs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" > -- Bjoern A. Zeeb It will not break if you know what you are doing.
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