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memory problem

Hi, I use Cisco 871 IOS ver. 12.4(24)T.

I have losed connectivity to internet, and when i look at the log buffer, i get these messages:

011510: .Apr 9 09:03:50.040 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 2789> from <cli 192.168.3.20>.

011511: .Apr 9 09:03:51.267 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 5786> from <cli 192.168.3.252>.

011512: .Apr 9 09:03:54.039 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 2789> from <cli 192.168.3.20>.

011513: .Apr 9 09:04:01.269 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 5786> from <cli 192.168.3.252>.

011514: .Apr 9 09:04:02.040 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 56292> from <cli 192.168.3.20>.

011515: .Apr 9 09:04:02.268 eest: %SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for Firewall State. No memory available -Process= "Chunk Manager", ipl= 3, pid= 1, -Traceback= 0x8005763Cz 0x80393F6Cz 0x803973B8z

011516: .Apr 9 09:04:03.040 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 56292> from <cli 192.168.3.20>.

%SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x80058904, alignment 32

Pool: Processor Free: 2164336 Cause: Memory fragmentation

Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Syslog", ipl= 3, pid= 197, -Traceback= 0x800255FCz 0x8003F204z 0x80058908z 0x80057750z 0x8005ADFCz 0x800573A4z 0x81433250z 0x8144CB64z 0x81452AB0z 0x81D61CE8z 0x81D5A7B8z 0x81D5B228z 0x81D5F8D8z 0x81D5FF44z 0x80E8278Cz 0x80E842D0z

011522: .Apr 9 09:04:11.042 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 56292> from <cli 192.168.3.20>.

011523: .Apr 9 09:04:21.267 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 5786> from <cli 192.168.3.252>.

%SYS-2-CHUNKEXPANDFAIL: Could not expand chunk pool for Firewall State. No memory available -Process= "Chunk Manager", ipl= 3, pid= 1, -Traceback= 0x8005763Cz 0x80393F6Cz 0x803973B8z

%SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x80058904, alignment 32

Pool: Processor Free: 2168932 Cause: Memory fragmentation

Alternate Pool: None Free: 0 Cause: No Alternate pool

-Process= "Syslog", ipl= 3, pid= 197, -Traceback= 0x800255FCz 0x8003F204z 0x80058908z 0x80057750z 0x8005ADFCz 0x800573A4z 0x81433250z 0x8144CB64z 0x81452AB0z 0x81D62308z 0x81D74278z 0x81D68298z 0x81D65164z 0x81D5C1FCz 0x81D5F8D8z 0x81D5FF44z

011530: .Apr 9 09:04:39.466 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 6435> from <cli 192.168.3.3>.

011531: .Apr 9 09:04:43.465 eest: %DNSSERVER-3-UDPDNSOVERLOAD: Low available memory: dropping <id# 6435> from <cli 192.168.3.3>.

I assume that the memory has been overloading, but why this happend?

I reloaded the router and now works fine. Can anybody helps me ? Thanks in advance!

7 Replies 7

paolo bevilacqua
Hall of Fame
Hall of Fame

This happens a lot with IOS, it's a class of bugs called "memory leak".

You best bet is to upgrade IOS and hope it has beed fixed.

Hi p.bevilacqua, thanh you for your reply! I'm currently with the newest IOS :( Any other idea ?

Downgrade IOS.

try: ip dns server queue limit forwarder 10

Is this router a DNS server?

Does it have to be?

romainsab84
Level 1
Level 1

Hi Zenon,

 

I have same problem on my C897VA device and in checking my computer, i found that is my torrent downloading software who genere this problem.

 

I just need to lauch program for have this problem every 30min while 5min, don't need to downloading for it.

 

It block every new webpage request...

The low memory issue is almost certainly the result of a memory leak bug in the software that you are running. Is it possible to try a different version of software? Otherwise you just need frequent rebooting of your router.

HTH

Rick
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