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Cisco ASA 5512-X ""Lua runtime: not enough memory"

aaron-rousch
Level 1
Level 1

Good day everyone.

Yesterday, I was working on a Cisco ASA 5512-X Firewall that was being used as a VPN Firewall when suddenly I was disconnected from the ASDM. My SSH session from Putty was closed, and I am unable to get back into any of them. 

I took a console cable directly connected to the Firewall. I was greeted with the usual log message but with the message "Lua runtime: not enough memory" which kept interrupting my inputs while I was troubleshooting. 

when I used the "show memory" command this is what caught my attention 

Free memory: 117768378 bytes (7%)
Used memory: 1628998880 bytes (93%)
------------- ------------------
Total memory: 1746767258 bytes (100%)

i assume the high used memory was why my remote sessions were cut off so abruptly and the reason why i can't get back in using ASDM or SSH.

Strangely enough, i was still able to connect and use the VPN without issues, others were still able to connect and use the VPN as well.

I have a feeling i am dealing with the Bug labeled CSCto76775 and i am currently in the process of backing up the running-config and submitting a downtime request form so i can Power-Cycle the device

I have uploaded two text files for reference, one is the "show version" of the device in question and another one is an abbreviated output of the "show memory detail"

My question is, is there another way i can free up the memory so i can re-gain access to the ASDM and re-establish SSH connections or is Power Cycling the only way?

Thank you for your time

Any help would be appreciated.

 

-Aaron 

PS: if this is in the wrong area, please let me know so i can re-ask the question in the correct location.

 

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