Date: Fri, 23 Jul 1999 17:14:55 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: David Malone <dwmalone@maths.tcd.ie>, Doug <Doug@gorean.org>, "David E. Cross" <crossd@cs.rpi.edu>, freebsd-hackers@FreeBSD.ORG, crossd@cs.rpi.edu Subject: Re: mbuf leakage in NFSv3 writes, possbile? Message-ID: <199907240014.RAA30153@apollo.backplane.com> References: <199907231747.NAA94297@cs.rpi.edu>
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I'd say that there is a definite leak somewhere. The question is where.
I'll run some buildworld tests w/ the latest current to see if I can
cause mbufs to leak. I suspect that the problem may be related to a
specific situation, though, such as a particular type of FS op failure.
Unfortunately, I do not have any -stable machines setup at the moment
that I can use for NFS testing.
You could try backing out the nfs_serv.c and related patches from your
-stable source to see if that fixes this particular problem. If it does
then we will know where to look.
-Matt
Matthew Dillon
<dillon@backplane.com>
:Ok, here are some real stats....
:
:"w" is the read-only machine, it services everything that "s" (the
:read-write machine) does... in fact it services more.
:
:*w crossd $ strings -a /kernel | grep \^___maxusers
:___maxusers 96
:*w crossd $ uname -a
:FreeBSD w.cs.rpi.edu 3.2-STABLE FreeBSD 3.2-STABLE #1: Tue Jun 29 09:36:32 EDT 1999 root@w.cs.rpi.edu:/usr/src/sys/compile/WOBBLE i386
:*w crossd $ uptime
: 1:43PM up 24 days, 2:08, 3 users, load averages: 0.00, 0.00, 0.00
:*w crossd $ netstat -m
:106/2688 mbufs in use:
: 85 mbufs allocated to data
: 21 mbufs allocated to packet headers
:64/426/2048 mbuf clusters in use (current/peak/max)
:1188 Kbytes allocated to network (11% in use)
:0 requests for memory denied
:0 requests for memory delayed
:0 calls to protocol drain routines
:
:*s crossd $ uname -a
:FreeBSD s.cs.rpi.edu 3.2-STABLE FreeBSD 3.2-STABLE #0: Thu Jul 22 18:12:21 EDT 1999 root@phoenix.cs.rpi.edu:/usr/src/sys/compile/STAGGER i386
:*s crossd $ strings -a /kernel | grep \^___maxusers
:___maxusers 512
:*s crossd $ uptime
: 1:43PM up 19:23, 2 users, load averages: 0.02, 0.01, 0.00
:*s crossd $ netstat -m
:3629/4096 mbufs in use:
: 3621 mbufs allocated to data
: 8 mbufs allocated to packet headers
:3550/3660/8704 mbuf clusters in use (current/peak/max)
:7832 Kbytes allocated to network (96% in use)
:0 requests for memory denied
:0 requests for memory delayed
:0 calls to protocol drain routines
:
:--
:David Cross | email: crossd@cs.rpi.edu
:Systems Administrator/Research Programmer | Web: http://www.cs.rpi.edu/~crossd
:Rensselaer Polytechnic Institute, | Ph: 518.276.2860
:Department of Computer Science | Fax: 518.276.4033
:I speak only for myself. | WinNT:Linux::Linux:FreeBSD
:
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