% ERROR: C4K_SUPERVISOR-2-SOFTERROR: memory inconsistency detected

maurosep182 · ‎12-03-2012

I have a bug in a 4900m switch, the log shows the following error:

% C4K_SUPERVISOR-2-SOFTERROR: memory inconsistency detected

IOS version is:

bootflash: cat4500e-entservices-mz.150-2.SG.bin

This is the show version:

Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-ENTSERVICES-M), Version 15.0(2)SG, RELEASE SOFTWARE (fc4)

Technical Support: http://www.cisco.com/techsupport

Compiled Tue 26-Apr-11 17:00 by prod_rel_team

Image text-base: 0x10000000, data-base: 0x12C90670

ROM: 12.2(44r)SG5

Sushi Revision 11, Tatooine Revision 141, Forerunner Revision 1.79

SFD_4900_1 uptime is 20 weeks, 4 days, 5 hours, 4 minutes

System returned to ROM by power-on

System image file is "bootflash:cat4500e-entservices-mz.150-2.SG.bin"

cisco WS-C4900M (MPC8548) processor (revision 2) with 524288K bytes of memory.

Processor board ID JAE1444008Y

MPC8548 CPU at 1.33GHz, Cisco Catalyst 4900M

Last reset from PowerUp

5 Virtual Ethernet interfaces

36 Gigabit Ethernet interfaces

16 Ten Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

What are the causes of this error?

What are the solutions?

Sandeep Choudhary · ‎12-03-2012

Hi Oscar,

Well, since this is a 4500, that means it has the ability to have redundant supervisors. Do you have redundant supes in this chassis? If so, you can simply pull the Active supe out and let the redundant one take over, then you can re-seat the supe and then pull the active supe out and re-seat it. This should take you back to the original supervisor without taking the switch down.

If you do not have redundant supervisors, you will want to reboot your switch at your next maintenance window.

If there is a memory problem and a process on the switch tries to use the affected memory, then there could be issues. If you don't have the redundant supervisors like I stated in my last post, I would reboot the switch at the soonest maintenance window.

***

%C4K_SUPERVISOR-2-FPGASOFTERROR: Memory inconsistency detected is due to a legitimate parity error occurring on a device on the supervisor. The switch should be reloaded at the next available maintenance window ***

Hope it helps.

Please rate if it helps.