Date: Sun, 1 Feb 1998 00:57:58 -0800 (PST) From: lord@crocodile.org To: FreeBSD-gnats-submit@FreeBSD.ORG Cc: dk@farm.org Subject: kern/5618: kernel memory leak Message-ID: <199802010857.AAA00357@noir.crocodile.org>
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>Number: 5618
>Category: kern
>Synopsis: kernel memory leak in routetbl.
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Feb 1 01:00:01 PST 1998
>Last-Modified:
>Originator: Vadim Zaliva
>Organization:
Private
>Release: FreeBSD 2.2.2-RELEASE i386
>Environment:
Moderately loaded 2.2.2 box on LAN running routed, httpd, ircd, sshd.
Used and shell box for dosen people. Uptime was around 50 days.
There was IP alias on the one and only ethernet interface.
>Description:
Noticed slowdown of the system. In `vmstat -m` output routbl category
occupies more than 10 meg.
Output of `vmstat -m`:
Memory statistics by bucket size
Size In Use Free Requests HighWater Couldfree
16 62 1218 62899 1280 0
32 49630 34 307579 640 0
64 8367 1745 1710296 320 0
128 9936 208 4505330 160 12584
256 62664 392 3000116 80 1168
512 71 193 156979 40 2150
1K 27 161 5810616 20 1514765
2K 8 24 3703 10 1395
4K 8 6 14449 5 0
8K 3 2 7 5 0
16K 4 0 4 5 0
32K 1 0 1 5 0
Memory usage type by bucket size
Size Type(s)
16 devbuf, pcb, routetbl, vnodes, proc, mrt, temp, IpFw/IpAcct, sysctl
32 devbuf, pcb, routetbl, pgrp, session, subproc, ether_multi, temp
64 devbuf, routetbl, ifaddr, namecache, VM mapent, VM pgdata, file,
lockf, in_multi
128 devbuf, pcb, routetbl, zombie, ifaddr, cred, vnodes, VM map,
VM object, VM pgdata, file desc, ip_moptions, temp, ttys,
IpFw/IpAcct, isa_devlist
256 devbuf, socket, pcb, routetbl, vnodes, VM map, VM pgdata, file desc,
subproc, FFS node, NFS srvsock, NFS daemon, temp, select
512 devbuf, pcb, ioctlops, mount, UFS mount, VM pgdata, file desc, proc,
temp, BIO buffer
1K devbuf, namei, UFS mount, VM pgdata, file desc, NQNFS Lease, temp,
BIO buffer
2K devbuf, UFS mount, VM pgdata, proc, BIO buffer
4K mbuf, devbuf, ioctlops, VM pgdata, MSDOSFS mount, temp
8K NFS node, UFS quota, UFS mount, VM pgdata
16K devbuf, namecache
32K VM pgdata
Memory statistics by type Type Kern
Type InUse MemUse HighUse Limit Requests Limit Limit Size(s)
mbuf 1 4K 4K 18437K 1 0 0 4K
devbuf 38 80K 81K 18437K 129 0 0 16,32,64,128,256,512,1K,2K,4K,16K
socket 4663 1166K 1215K 18437K 238525 0 0 256
pcb 9280 1740K 1813K 18437K 316399 0 0 16,32,128,256,512
routetbl 98885 13905K 13907K 18437K 172810 0 0 16,32,64,128,256
zombie 0 0K 1K 18437K 155045 0 0 128
ifaddr 9 2K 2K 18437K 9 0 0 64,128
namei 1 1K 16K 18437K 5749510 0 0 1K
ioctlops 0 0K 4K 18437K 27 0 0 512,4K
cred 49 7K 30K 18437K 77650 0 0 128
pgrp 34 2K 7K 18437K 37185 0 0 32
session 27 1K 7K 18437K 32596 0 0 32
mount 4 2K 2K 18437K 4 0 0 512
NFS node 1 8K 8K 18437K 1 0 0 8K
vnodes 3873 482K 498K 18437K 64729 0 0 16,128,256
namecache 3823 255K 255K 18437K 3823 0 0 64,16K
UFS quota 1 8K 8K 18437K 1 0 0 8K
UFS mount 10 19K 19K 18437K 10 0 0 512,1K,2K,8K
VM map 56 14K 59K 18437K 155101 0 0 128,256
VM mapent 3999 250K 250K 18437K 3999 0 0 64
VM object 834 105K 402K 18437K 3759469 0 0 128
VM pgdata 583 78K 272K 18437K 39710 0 0 64,128,256,512,1K,2K,4K,8K,32K
file 126 8K 33K 18437K 1620648 0 0 64
file desc 50 8K 29K 18437K 155692 0 0 128,256,512,1K
lockf 4 1K 1K 18437K 47702 0 0 64
proc 61 30K 120K 18437K 157076 0 0 16,512,2K
subproc 59 5K 53K 18437K 310149 0 0 32,256
FFS node 3743 936K 955K 18437K 2073167 0 0 256
NQNFS Lease 1 1K 1K 18437K 1 0 0 1K
NFS srvsock 2 1K 1K 18437K 2 0 0 256
NFS daemon 1 1K 1K 18437K 1 0 0 256
ip_moptions 1 1K 1K 18437K 45773 0 0 128
in_multi 2 1K 1K 18437K 11445 0 0 64
ether_multi 1 1K 1K 18437K 11444 0 0 32
mrt 1 1K 1K 18437K 1 0 0 16
MSDOSFS mount 1 4K 4K 18437K 1 0 0 4K
temp 101 9K 26K 18437K 225380 0 0 16,32,128,256,512,1K,4K
ttys 401 51K 99K 18437K 32147 0 0 128
IpFw/IpAcct 6 1K 1K 18437K 6 0 0 16,128
isa_devlist 1 1K 1K 18437K 1 0 0 128
sysctl 0 0K 1K 18437K 11 0 0 16
BIO buffer 21 23K 178K 18437K 64286 0 0 512,1K,2K
select 27 7K 52K 18437K 10313 0 0 256
Memory Totals: In Use Free Requests
19202K 599K 15571979
>How-To-Repeat:
I don't know :-)
>Fix:
reboot
>Audit-Trail:
>Unformatted:
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