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Initial Public Release
FXOS - 1.1(4.x)
FXOS - 2.0(x)
FXOS - 2.1(x)
The Cisco Firepower 4100 and 9300 Series Security Platforms (FPR4100 and FPR9300) that run the affected Firepower eXtensible Operating System (FXOS) software versions reboot after approximately 210 days of uptime.
The issue that is described in this Field Notice (FN) is related to a memory leak in the FXOS software that causes the affected FPR4100 and FPR9300 platforms to reboot after approximately 210 days of uptime.
The affected platforms reboot due to a Kernel Panic after approximately 210 days of uptime. After the reboot, you can enter the show system reset-reason command into the CLI in order to confirm the Kernel Panic:
# connect fxos
(fxos)# show system reset-reason
----- reset reason for Supervisor-module 1 (from Supervisor in slot 1) ---
1) At 512932 usecs after Sun Apr 16 09:53:03 2017
Reason: Kernel Panic
Cisco recommends that you upgrade the FXOS software in order to resolve the reboot issue for the affected units.
Customers that have a valid service contract can download updated FXOS software versions that address this issue from Cisco Software Central.
Refer to the table in order to determine the recommended upgrade path for your specific product:
|Impacted Software Version(s)
||Fixed Software Version(s)
2.0(1.148) or later
2.0(1.148) or later
2.1(1.83) or later
How To Identify Software Levels
Enter the show version command in order to determine the FXOS software version that your platform currently runs.
Note: The Package-Vers line indicates the FXOS software version.
FPR4120-A# show version
If the output the show version command indicates that your platform currently runs an affected FXOS software version, then enter the show version | i uptime command in order to determine the length of time that the platform has been up:
FPR4120-A# connect fxos
FPR4120-A(fxos)# show version | i uptime
Kernel uptime is 34 day(s), 21 hour(s), 45 minute(s), 27 second(s)
In order to follow the bug ID link below and see detailed bug information, you must be
a registered customer and you must be logged in.
|CSCvd90400 (registered customers only)
||Unexpected reload due to memory leak on FPR4100 and 9300 FXOS platforms
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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