Switch WS-C4510R+E rebooting issue

[HCL Support]

Hi,

We have faced the issue with one Access Switch WS-C4510R+E having SUP# WS-X45-SUP7-E and showing the last rebooting reason as below,

CSS45B4W1.trv uptime is 56 minutes

We have checked the current IOS of this Switch and found deferred from Cisco.

Also attaching the crashinfo files, show tech-support an dshare us if have some more finding other than IOS part.

Regards,

Ashutosh

Uptime for this control processor is 58 minutes

System returned to ROM by reload

System restarted at 15:05:59 IST Mon Sep 10 2012

Running default software

Last reload reason: Critical software exception

[Arumugam Muthaiah · Accepted solution]

Hi,

I have gone throug the capture shared by you decoded both crashinfo and found below detail

HW: WS-C4510R+E

SW: cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin

------------------ dir crashinfo: ------------------

Directory of crashinfo:/

9922  -rw-           0  Jan 13 2012 15:52:25 +05:30  koops.dat
9923  -rwx      783094  Sep 10 2012 11:54:53 +06:30  crashinfo_iosd_20120910-112352-UTC
9924  -rw-          44  Sep 10 2012 14:54:32 +06:30  last_crashinfo
9925  -rwx      547415  Sep 10 2012 14:54:32 +06:30  crashinfo_iosd_20120910-142331-UTC
9926  -rwx      806623  Sep 10 2012 07:01:46 +06:30  crashinfo_iosd_20120910-063045-UTC

141433856 bytes total (137157632 bytes free)

Log:

*Sep 10 00:31:39.290: %SYS-2-CHUNKBADMAGIC: Bad magic number in chunk header, chunk 89699058  data 896A7790  chunkmagic 15A3C78B  chunk_freemagic EF4321D5 -Process= "Check heaps", ipl= 0, pid= 7

-Traceback= 1#d1c16a2e6f8ceec1892aa2e47e2a2618  :10000000+FCC0E4 :10000000+1BEE56C :10000000+1BEE794 :10000000+1C168F0

• Decoded the both crashinfo and found that both gave the same reason
  
• This issue is matching with known Bug CSCtr35883, please see the detail below,
  
  • The switch crashes with a bad magic number in chunk header.
    
  • A switch running 15.0(2)SG/3.2.0SG through 15.0(2)SG1/3.2.1S will experience this issue
    

Suggestion:

• This bug is fixed in 03.02.02.SG.150-2.SG2 or later
  
• To view more information about this bug please visit the Bug Toolkit located on Cisco's Website at:
  

http://www.cisco.com/cgi-bin/Support/Bugtool/home.pl

Regards,

Aru

*** please rate if this post is useful ****

[n.ghafarzadeh]

Hi,

Our network contains two 4507+E Cisco switches and another two SUP 7L-E.Their IOS was cat4500e-universalk9.SPA.03.07.00.E.152-3.E.bin.
MACsec technology on a communication port channel having two 3850 Stack Cisco switches was used.
Afterwards, one of the switches started experiencing random reboots every couple of days while displaying in show version reload reason
"software critical exception" after each restart.

Checking the logs,this error was being seen: "%C4K_SWITCHINGENGINEMAN-4-VFEIMINTERRUPT: Q.8�)L�d"
Supervisors were upgraded to 3.8.6 and 3.8.1 versions but it did not address the problem.
Rommon was upgraded to cat4500-e-ios-promupgrade-150-1r-SG14 version and it did not solved the issue as well.
VSL Links expansion from 4 GB to 20 GB tried and the restarts were still happening.

Finally, MACsec was removed from its communication link with the Cisco 3850 Stack and it did the trick!

I am still wondering whether Cisco does have any solution for this problem?

regards.