v24 out of memory

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jnjn
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Joined: 07 Jun 2006
Posts: 448
Location: PRC

PostPosted: Mon Jul 10, 2006 11:49    Post subject: v24 out of memory Reply with quote
internet access dies first. after firing up kiwi syslog, it shows nothing.
web admin is ok, but wan ip becomes 0.0.0.0.
after a minute, syslog shows nvram commit out of memory.
anyway to fix it?
uptime, about 10 hours, running some p2p etc.
free memory varied between 200k to 1.8M.
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jnjn
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Joined: 07 Jun 2006
Posts: 448
Location: PRC

PostPosted: Mon Jul 10, 2006 11:50    Post subject: Reply with quote
running 07/10/06 on a buffalo wbr-g54 with 16m ram
cyberde
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Posts: 1488
Location: the Netherlands

PostPosted: Mon Jul 10, 2006 19:02    Post subject: Reply with quote
No problem here, running on a WRT54GSv4. Current uptime is now 22 minutes but it had an uptime of two days.


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Firmware: DD-WRT v24-sp2 (latest available) mega
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magicman
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Joined: 16 Jun 2006
Posts: 38

PostPosted: Mon Jul 10, 2006 21:41    Post subject: Reply with quote
in the ip filtering (adjust these for p2p) in the management tab under administration set maximum ports to 4096 and timeouts to 90 seconds for both.

if you do ANY p2p you must change those settings.
BrainSlayer
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Joined: 06 Jun 2006
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Location: Dresden, Germany

PostPosted: Mon Jul 10, 2006 22:30    Post subject: Reply with quote
he is surelly using the voip version of v24. this version takes alot of memory
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jnjn
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Joined: 07 Jun 2006
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Location: PRC

PostPosted: Tue Jul 11, 2006 5:01    Post subject: Reply with quote
nope, not voip version.
just generic.
anyone interested in investigeting my setting?
port(connection) limit was set to 3072 and now 2048 to save around 300kB of memory.
maybe it will increase some stability?
BrainSlayer
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Location: Dresden, Germany

PostPosted: Tue Jul 11, 2006 5:06    Post subject: Reply with quote
show me your "ps" output after login with telnet
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jnjn
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Location: PRC

PostPosted: Tue Jul 11, 2006 5:07    Post subject: Reply with quote
c the web admin page.


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jnjn
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Joined: 07 Jun 2006
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Location: PRC

PostPosted: Tue Jul 11, 2006 5:08    Post subject: Reply with quote
here it comes:

DD-WRT VeryBusyBox v1.2.0 (2006.07.10-23:48+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ # ps
PID Uid VmSize Stat Command
1 root 412 S /sbin/init noinitrd
2 root SW [keventd]
3 root RWN [ksoftirqd_CPU0]
4 root SW [kswapd]
5 root SW [bdflush]
6 root SW [kupdated]
12 root SW [mtdblockd]
53 root 312 S resetbutton
74 root 440 S /usr/sbin/telnetd
80 root 840 S httpd
91 root 392 S nas -P /tmp/nas.wl0lan.pid -H 34954 -l br0 -i eth2 -A
96 root 320 S /sbin/wland
311 root 264 S /usr/sbin/pptpd -c /tmp/pptpd/pptpd.conf -o /tmp/pptp
312 root 268 S /usr/sbin/bcrelay -i br0 -o ppp[0-9].* -n
318 root 320 S /tmp/ppp/redial 20
322 root 360 S pppoecd eth1 -u bXXXXXXXX@adsl -p XXXXXXXX -r 1492 -t
450 root 476 S /sbin/syslogd -R 192.168.171.1
452 root 460 S /sbin/klogd
468 root 596 S dnsmasq --conf-file /tmp/dnsmasq.conf
529 root 352 S process_monitor
535 root 456 S upnp -D -L br0 -W ppp0 -I 60 -A 180
820 root 576 S -sh
821 root 448 R ps
BrainSlayer
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Joined: 06 Jun 2006
Posts: 6971
Location: Dresden, Germany

PostPosted: Tue Jul 11, 2006 5:13    Post subject: Reply with quote
okay nothing critical. everything is looking fine you're just using many services. i see pptp server ,pppoe client, upnp, syslog (is this really neccessary?)
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"So you tried to use the computer and it started smoking? Sounds like a Mac to me.." - Louis Rossmann https://www.youtube.com/watch?v=eL_5YDRWqGE&t=60s
BrainSlayer
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Joined: 06 Jun 2006
Posts: 6971
Location: Dresden, Germany

PostPosted: Tue Jul 11, 2006 5:14    Post subject: Reply with quote
and the kernel is additionally using 3 mb for caching. this is a dynamic pool and the kernel will give you this 3 mb if you need it. so your router is running fine
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"So you tried to use the computer and it started smoking? Sounds like a Mac to me.." - Louis Rossmann https://www.youtube.com/watch?v=eL_5YDRWqGE&t=60s
jnjn
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Joined: 07 Jun 2006
Posts: 448
Location: PRC

PostPosted: Tue Jul 11, 2006 5:25    Post subject: Reply with quote
hope so. Very Happy
pptp is critical to me, damn campus network can't access resources out of the country, proxy's slow, so need to vpn to somewhere and get through.
pptp client is on? gotta disable it.
jnjn
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Joined: 07 Jun 2006
Posts: 448
Location: PRC

PostPosted: Tue Jul 11, 2006 5:28    Post subject: Reply with quote
pptp client was set to disable. maybe it is needed (auto enabled) to run pptp server?
GeeTek
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Joined: 06 Jun 2006
Posts: 3768
Location: I'm the one on the plate.

PostPosted: Tue Jul 11, 2006 6:17    Post subject: Re: v24 out of memory Reply with quote
jnjn wrote:
internet access dies first. after firing up kiwi syslog, it shows nothing.
web admin is ok, but wan ip becomes 0.0.0.0.
after a minute, syslog shows nvram commit out of memory.


In the DD-wrt/linux environment can this problem possibly be caused by running low on memory ? If yes, will a router with more memory avoid the problem, or just delay the problem because Linux is so bad at memory management ? When I run BASIC code in my GW BASIC interpreter, my available memory drops during program execution, but will usually (80% of the time) release memory in time for the program to continue running . 20% of the time I get "out of memory" error (random). Compiling the code to .EXE solves the memory outage problem of the 1986 year version of the BASIC interpreter that I use.

Edit - I have read that the *nix core is different about memory management. I'm just curios to know if *nix MIGHT run low on memory at times because of not releasing what is not needed, and cause service outrages. If this is true, it is very easy to set the unit to reboot once a week. Very Happy
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