FortiGate 401E 7.0.4 fork() failed: (12)Cannot allocate memory

[Ildar]

After update firmware to 7.0.4 I try to see GUI dashboard widget "Firewall Users" and device down with error "Failed ti retrieve info". In ssh console after same minutes

# diagnose sys top
[sys_top:559] fork() failed: (12)Cannot allocate memory

and not answer.

In com-port connect console:

fork() failed
fork() failed
fork() failed
fork() failed
fork() failed

https debug not show nothing, it stoped after open page with widget "Firewall Users"

[warshad]

Hi,

Can you please try to reboot the FGT and check again?

> C195FW001 # diag sys top
[sys_top:560] fork() failed: (12)Cannot allocate memory

Regarding this error message, please run the command #diag sys top-summary & whichever, process is consuming high memory then kill it as the following.

#diag sys kill 99 <process_id>

How to interpret the process_id, please review the below kb article on it.

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Diagnose-sys-top-CLI-command/ta-p/190238?e...

[AlexC-FTNT]

If your fortigate is a low-end series model, it may not have enough memory to run the firmware. 

Check also the "diag sys flash list" - you should see at least 10% available space for the active partition (the one with "Yes")