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Subject2.4.20-ac2 Memory Leak?
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My router box has a problem, it seems to be running out of memory. Programs
that worked fine earlier are now swapping like crazy.

What confuses me is that if I add up all the RSS of the processes I get 5.9M,
a number drastically lower than the available RAM on the machine (24M) and
drastically lower than the amount of RAM "free" says is taken (22M).

It seems something in kernel space has taken a ton of memory out of play?
Or is my diagnosis wrong?


USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.8 1216 196 ? S Mar09 0:06 init [2]
root 2 0.0 0.0 0 0 ? SW Mar09 0:02 [keventd]
root 3 0.0 0.0 0 0 ? SWN Mar09 0:01 [ksoftirqd_CPU0]
root 4 0.0 0.0 0 0 ? SW Mar09 0:25 [kswapd]
root 5 0.0 0.0 0 0 ? SW Mar09 0:00 [bdflush]
root 6 0.0 0.0 0 0 ? SW Mar09 0:00 [kupdated]
root 111 0.0 0.0 0 0 ? SW Mar09 0:00 [eth0]
root 118 0.0 0.8 1408 192 ? S Mar09 0:08 dhclient -pf /var/run/dhclient.eth0.pid eth0
root 182 0.0 1.1 1284 248 ? S Mar09 0:18 /sbin/syslogd
root 185 0.0 0.7 1840 168 ? S Mar09 0:04 /sbin/klogd
root 205 0.0 0.6 1236 156 ? S Mar09 0:00 /usr/sbin/inetd
root 212 0.0 1.0 2688 240 ? S Mar09 0:00 /usr/sbin/sshd
root 224 0.0 0.6 2308 140 tty1 S Mar09 0:03 -bash
stark 225 0.0 0.5 2276 116 tty2 S Mar09 0:01 -bash
stark 226 0.0 0.6 2300 144 tty3 S Mar09 0:06 -bash
root 227 0.0 0.5 1200 116 tty4 S Mar09 0:00 /sbin/getty 38400 tty4
root 228 0.0 0.5 1200 116 tty5 S Mar09 0:00 /sbin/getty 38400 tty5
root 229 0.0 0.5 1200 116 tty6 S Mar09 0:00 /sbin/getty 38400 tty6
root 236 0.0 0.6 1736 144 tty1 S Mar09 0:03 tail -100f /var/log/ppp.log
root 245 0.0 0.8 2000 184 ? S Mar09 1:09 pppd call provider
root 253 0.0 0.0 0 0 ? SW Mar09 0:00 [eth1]
root 303 0.0 0.7 2088 160 ? S Mar09 0:25 /usr/sbin/zhm arilinn.mit.edu neskaya.mit.edu
root 494 0.0 0.5 5772 128 ? S Mar09 0:00 /usr/sbin/sshd
stark 496 0.0 1.5 5904 356 ? S Mar09 1:47 /usr/sbin/sshd
stark 497 0.5 2.7 3412 620 ? S Mar09 69:08 zwgc -ttymode -nofork -f /home/stark/.zwgc.desc
root 1315 0.0 0.7 1440 160 ? S Mar10 0:07 /usr/sbin/dhcpd -q eth1
root 11109 0.0 1.9 2316 432 tty2 S 14:02 0:01 bash
root 11367 0.0 1.9 2316 432 tty2 S 18:07 0:00 bash
root 11368 0.0 3.3 2488 744 tty2 R 18:07 0:00 ps auxww



total: used: free: shared: buffers: cached:
Mem: 22962176 22597632 364544 0 245760 3223552
Swap: 67489792 4120576 63369216
MemTotal: 22424 kB
MemFree: 356 kB
MemShared: 0 kB
Buffers: 240 kB
Cached: 2352 kB
SwapCached: 796 kB
Active: 3008 kB
Inact_dirty: 192 kB
Inact_clean: 340 kB
Inact_target: 708 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 22424 kB
LowFree: 356 kB
SwapTotal: 65908 kB
SwapFree: 61884 kB
Committed_AS: 8552 kB



Module Size Used by Not tainted
ipt_MASQUERADE 1784 0 (autoclean)
ipt_LOG 3384 1 (autoclean)
ipt_state 536 1 (autoclean)
ipt_TCPMSS 2360 1 (autoclean)
ip_nat_ftp 3568 0 (unused)
iptable_nat 21016 2 [ipt_MASQUERADE ip_nat_ftp]
ip_conntrack_irc 3152 0 (unused)
ip_conntrack_ftp 4208 1 [ip_nat_ftp]
ip_conntrack 27776 4 [ipt_MASQUERADE ipt_state ip_nat_ftp iptable_nat ip_conntrack_irc ip_conntrack_ftp]
ethertap 3108 1
iptable_filter 1644 1 (autoclean)
ip_tables 14296 8 [ipt_MASQUERADE ipt_LOG ipt_state ipt_TCPMSS iptable_nat iptable_filter]
pppoe 7820 1
pppox 1176 1 [pppoe]
ppp_generic 19836 3 (autoclean) [pppoe pppox]
slhc 5104 0 (autoclean) [ppp_generic]
8139too 14216 2
rtc 6588 0 (autoclean)


--
greg

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