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Stack Cisco Catalyst 3750 24PS

flielguera
Beginner
Beginner

Hello:

I have a Stack of Switchs Cisco Catalyst 3750, with  IOS version 12.2(50)SE, since three days ago we Iost connectivity for 5 minutes, I see the log and the following message appears:

, changed state to up
000034: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: System previously crashed with the following message: (CC3750_Cronos_15-1)
000035: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(50)SE, RELEASE SO
FTWARE (fc1) (CC3750_Cronos_15-1)
000036: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Copyright (c) 1986-2009 by Cisco Systems, Inc. (CC3750_Cronos_15-1)
000037: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Compiled Sat 28-Feb-09 03:33 by weiliu (CC3750_Cronos_15-1)
000038: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED:   (CC3750_Cronos_15-1)
000039: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)! (CC3750_Cronos_15
-1)
000040: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED:   (CC3750_Cronos_15-1)
000041: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: SRR0 = 0x019631C4  SRR1 = 0x00029230  SRR2 = 0x006B7644  SRR3 = 0x00021000 (CC3750_Cronos
_15-1)
000042: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: ESR = 0x00000000  DEAR = 0x00000000  TSR = 0x8C000000  DBSR = 0x10000000 (CC3750_Cronos_1
5-1)
000043: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED:   (CC3750_Cronos_15-1)
000044: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: CPU Register Context: (CC3750_Cronos_15-1)
000045: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Vector = 0x00002000  PC = 0x00A708FC  MSR = 0x00029230  CR = 0x22000042 (CC3750_Cronos_15
-1)
000046: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: LR = 0x00A708C0  CTR = 0x01957C68  XER = 0x2000004C (CC3750_Cronos_15-1)
000047: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R0 = 0x00A708C0  R1 = 0x0590B0C0  R2 = 0x00000000  R3 = 0x039F3394 (CC3750_Cronos_15-1)
000048: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R4 = 0x00000000  R5 = 0x00000000  R6 = 0x00000000  R7 = 0x00000000 (CC3750_Cronos_15-1)
000049: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R8 = 0x00007530  R9 = 0x00000000  R10 = 0x00000000  R11 = 0x00000005 (CC3750_Cronos_15-1)
000050: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R12 = 0x1D31EC3D  R13 = 0x00110000  R14 = 0x01B7D6A8  R15 = 0x00000000 (CC3750_Cronos_15-
1)
000051: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R16 = 0x00000000  R17 = 0x00000000  R18 = 0x00000000  R19 = 0x00000000 (CC3750_Cronos_15-
1)
000052: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R20 = 0x00000000  R21 = 0x00000000  R22 = 0x00000000  R23 = 0x0000006A (CC3750_Cronos_15-
1)
000053: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R24 = 0x00000000  R25 = 0x0000006B  R26 = 0x00000000  R27 = 0x00000000 (CC3750_Cronos_15-
1)
000054: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: R28 = 0x0272B384  R29 = 0x01EC5BFC  R30 = 0x027292D0  R31 = 0x00000000 (CC3750_Cronos_15-
1)
000055: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED:   (CC3750_Cronos_15-1)
000056: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Stack trace: (CC3750_Cronos_15-1)
000057: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: PC = 0x00A708FC, SP = 0x0590B0C0 (CC3750_Cronos_15-1)
000058: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Frame 00: SP = 0x0590B0D0    PC = 0x00A708C0 (CC3750_Cronos_15-1)
000059: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Frame 01: SP = 0x0590B100    PC = 0x01952D50 (CC3750_Cronos_15-1)
000060: *Mar 17 09:35:24.619: %PLATFORM-1-CRASHED: Frame 02: SP = 0x0590B118    PC = 0x019527A0 (CC3750_Cronos_15-1)
000061: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED: Frame 03: SP = 0x0590B150    PC = 0x0194CACC (CC3750_Cronos_15-1)
000062: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED: Frame 04: SP = 0x0590B170    PC = 0x01BBF5DC (CC3750_Cronos_15-1)
000063: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED: Frame 05: SP = 0x0590B1A8    PC = 0x00DEDC54 (CC3750_Cronos_15-1)
000064: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED: Frame 06: SP = 0x0590B1C8    PC = 0x01B7D998 (CC3750_Cronos_15-1)
000065: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED: Frame 07: SP = 0x0590B1D0    PC = 0x00A72888 (CC3750_Cronos_15-1)
000066: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED: Frame 08: SP = 0x00000000    PC = 0x00A69358 (CC3750_Cronos_15-1)
000067: *Mar 17 09:35:24.627: %PLATFORM-1-CRASHED:   (CC3750_Cronos_15-1)
CC3750_Cronos_15#

Please,  some have any ideas about what happend.

I very appreciate your answesrs.

Regards.

Fernando,

5 Replies 5

garapoglou
Participant
Participant

Hi,

Is IP routing enabled on that switch?

Best regards,

Giorgos

Hello, thanks for you reply.

No, this Stack doesn´t IP Routing enable.

Regards.

Fernando,

Did you recently load this IOS?

It seems as this could be memory issue with your 3750. From the message, there should be a crash file written on your flash.

You should open a ticket with TAC and send them the crash file.

HTH

Reza

Leo Laohoo
VIP Community Legend VIP Community Legend
VIP Community Legend

12.2(50)SE

Hi Fernando,

Your switch stack crashed then there should be a few "crashinfo" files.  Can you post these.  I remembered testing this IOS version and I rolled back because I found it was very buggy.

Michael Simon
Beginner
Beginner

From decoding the crashdump this is a memory corruption crash.


There are two memory corruption crashes that are likely candidates in this IOS image:

CSCta48905   Memory corruption due to ssh

Fixed in 12.2(50)SE3

http://cdetsweb-prd.cisco.com/apps/goto?identifier=CSCsz94252CSCsz94252  Memory Corruption/Crash on reauthenticate on MDA Port with Radius Vlan

Fixed in 12.2(50)SE3 and 12.2(52)SE

It is hard to say from the information available which this event was.  The decodes were very generic to memory corruption crashes.

The reason this is common is that in a memory corruption crash the processes that precede the crash are the ones that detect the memory corruption. The process that corrupted the memory will have released control and not be represented in the normal decodes.

In a normal crash that is caused by some code executing the tracebacks will point to those functions and that makes it easier to identify a specific bug.

The simple answer is to upgrade to a current IOS image.  As usual when you upgrade you should review the release notes for the new image so you may be aware of any known issues that might impact your network.

12.2(50)SE5

http://www.cisco.com/en/US/products/ps10144/prod_release_notes_list.html

12.2(55)SE3

http://www.cisco.com/en/US/products/ps10144/prod_release_notes_list.html

........Mike

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