04-08-2009 11:50 PM - edited 03-04-2019 04:18 AM
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!
04-09-2009 12:03 AM
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.
04-09-2009 12:26 AM
Hi p.bevilacqua, thanh you for your reply! I'm currently with the newest IOS :( Any other idea ?
04-09-2009 01:49 AM
Downgrade IOS.
12-31-2011 04:42 AM
try: ip dns server queue limit forwarder 10
01-02-2012 09:18 AM
Is this router a DNS server?
Does it have to be?
02-01-2021 06:14 AM - edited 02-01-2021 06:16 AM
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...
02-01-2021 08:29 AM
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.
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