Re: Possible memory leak?

Pet Farrari <pf@xxxxxxxxxxx> writes:

Hi,

I installed FreeBSD 6.1 stable in WRAP.
As an internet/network router, I configured dhclient and bpalogin for
Telstra's cable Internet. I have installed named, and wireless access
point (ath) in the system as well.

In the Top command, I found the system started with 93MB free memory,
but in 5 days, it gradually decreased to 64MB, and then no more
internet connection until I reboot the system.

Here is the hardware config from its dmesg:

FreeBSD 6.1-STABLE #0: Tue Aug 22 10:14:07 EST 2006
root@xxxxxxxxxxxxxxxx:/usr/obj/usr/src/sys/CORE
WARNING: debug.mpsafenet forced to 0 as ipsec requires Giant
WARNING: MPSAFE network stack disabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Geode(TM) Integrated Processor by National Semi (266.67-MHz
586-class CPU)
Origin = "Geode by NSC" Id = 0x540 Stepping = 0
Features=0x808131<FPU,TSC,MSR,CX8,CMOV,MMX>
real memory = 134217728 (128 MB)
avail memory = 121892864 (116 MB)
module_register_init: MOD_LOAD (vesa, 0xc08c5554, 0) error 19
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
cpu0 on motherboard
pcib0: <Host to PCI bridge> pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
sis0: <NatSemi DP8381[56] 10/100BaseTX> port 0x1000-0x10ff mem
0x80000000-0x80000fff irq 10 at device 14.0 on pci0
sis0: Silicon Revision: DP83816A
miibus0: <MII bus> on sis0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
sis0: Ethernet address: 00:0d:b9:03:e2:2c
sis0: [GIANT-LOCKED]
sis1: <NatSemi DP8381[56] 10/100BaseTX> port 0x1400-0x14ff mem
0x80040000-0x80040fff irq 11 at device 16.0 on pci0
sis1: Silicon Revision: DP83816A
miibus1: <MII bus> on sis1
ukphy1: <Generic IEEE 802.3u media interface> on miibus1
ukphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
sis1: Ethernet address: 00:0d:b9:03:e2:2d
sis1: [GIANT-LOCKED]
ath0: <Atheros 5212> mem 0x80080000-0x8008ffff irq 9 at device 17.0 on pci0
ath0: [GIANT-LOCKED]
ath0: Ethernet address: 00:15:6d:50:0e:2a
ath0: mac 5.9 phy 4.3 radio 4.6
isab0: <PCI-ISA bridge> port 0xf400-0xf43f,0xf600-0xf63f at device
18.0 on pci0
isa0: <ISA bus> on isab0
pci0: <bridge> at device 18.1 (no driver attached)
atapci0: <National Geode SC1100 ATA33 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc0f at device 18.2 on
pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <multimedia, audio> at device 18.3 (no driver attached)
pci0: <bridge> at device 18.5 (no driver attached)
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xe0000-0xe7fff on isa0
ppc0: parallel port not found.
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A, console
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
Timecounters tick every 1.000 msec
IPsec: Initialized Security Association Processing.
IP Filter: v4.1.8 initialized. Default = pass all, Logging = disabled
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding
disabled, default to accept, logging disabled
ad0: 1001MB <HYPERSTONE FLASH DISK 30/06/03> at ata0-master PIO4
Trying to mount root from ufs:/dev/ad0s1a

Here is the output of df -k command:

# df -k
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 68951 33250 30185 52% /
devfs 1 1 0 100% /dev
/dev/ad0s1d 11351 154 10289 1% /usr/var
/dev/ad0s1e 758599 176809 521103 25% /usr
procfs 4 4 0 100% /proc
devfs 1 1 0 100% /usr/var/named/dev

I m not sure what s wrong. Your suggestion is highly appreciated.

The memory status is not a problem; in fact, it's desirable.
See the FAQ "Why does top show very little free memory even when I
have very few programs running?"
http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/misc.html#TOP-FREEMEM

Can you be more descriptive about the actual problem you're seeing?

--
Lowell Gilbert, embedded/networking software engineer
http://be-well.ilk.org/~lowell/
.

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