strangeness about netstat -m and mbuf clusters

Kris Kennaway kris at
Wed Apr 13 03:22:00 PDT 2005

On Wed, Apr 13, 2005 at 12:14:18PM +0200, Oliver Brandmueller wrote:
> Hi everybody,
> I have something real strange about netst -m in RELENG_5:
> caipi# uname -a
> FreeBSD caipi 5.4-STABLE FreeBSD 5.4-STABLE #11: Tue Apr  5 13:18:21 CEST 2005     root at hudson:/usr/obj/usr/src/sys/APP  i386
> caipi# netstat -m
> 463324 mbufs in use
> 4294964312/25600 mbuf clusters in use (current/max)
> 0/4/6656 sfbufs in use (current/peak/max)
> 109863 KBytes allocated to network
> 0 requests for sfbufs denied
> 0 requests for sfbufs delayed
> 0 requests for I/O initiated by sendfile
> 323 calls to protocol drain routines

See the errata for 5.3, this is still true for later versions.

> On all the machines where this happens I also see, that I cannot use vi 
> to edit a file on an NFS filesystem. vi simply does nothing, it hangs 
> and cannot be killed or only after a long time. Using truss is not 
> possible: "truss: PIOCBIS: Inappropriate ioctl for device" (procfs is 
> mounted). Using another editor (vim for example) works as expected.

Sounds like rpc.lockd is not set up on client and/or server.

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