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Cisco 3750 Switch crushed

fgasimzade
Level 4
Level 4

Hello,

Recently one of our 3750 switches crushed 3  times during 2 hours with the following syslog messages:

                04:21 PM             (switch-name)                  Alert      98: 00:01:39:

                04:21 PM             (switch-name)                  Alert      97: 00:01:39: Frame 05: SP = 0x00000000 PC = 0x0039A5E4

                04:21 PM             (switch-name)                  Alert      96: 00:01:39: Frame 04: SP = 0x03C817A8 PC = 0x003A2FF8

                04:21 PM             (switch-name)                  Alert      95: 00:01:39: Frame 03: SP = 0x03C817A0 PC = 0x01616314

                04:21 PM             (switch-name)                  Alert      94: 00:01:39: Frame 02: SP = 0x03C81780 PC = 0x00212684

                04:21 PM             (switch-name)                  Alert      93: 00:01:39: Frame 01: SP = 0x03C81758 PC = 0x01613250

                04:21 PM             (switch-name)                  Alert      92: 00:01:39: Frame 00: SP = 0x03C81728 PC = 0x0161E9D0

                04:21 PM             (switch-name)                  Alert      89: 00:01:39:

                04:21 PM             (switch-name)                  Alert      90: 00:01:39: Stack trace:

                04:21 PM             (switch-name)                  Alert      87: 00:01:39: R24 = 0x00000000 R25 = 0x00000000 R26 = 0x00000000 R27 = 0x00000000

                04:21 PM             (switch-name)                  Alert      91: 00:01:39: PC = 0x0161E9D4, SP = 0x03C81718

                04:21 PM             (switch-name)                  Alert      88: 00:01:39: R28 = 0x03A73F0C R29 = 0x03C74258 R30 = 0x00000000 R31 = 0x03C74258

                04:21 PM             (switch-name)                  Alert      84: 00:01:39: R12 = 0x000433A9 R13 = 0x00110000 R14 = 0x01615FF4 R15 = 0x00000000

                04:21 PM             (switch-name)                  Alert      85: 00:01:39: R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x00000000

                04:21 PM             (switch-name)                  Alert      86: 00:01:39: R20 = 0x00000000 R21 = 0x00000000 R22 = 0x00000000 R23 = 0x00000000

                04:21 PM             (switch-name)                  Alert      83: 00:01:39: R8 = 0x00000000 R9 = 0x03C81705 R10 = 0x03A4DDE6 R11 = 0x03A4DDE5

                04:21 PM             (switch-name)                  Alert      82: 00:01:39: R4 = 0x03C81706 R5 = 0x00000000 R6 = 0x025D632C R7 = 0xBEEFCAFE

                04:21 PM             (switch-name)                  Alert      79: 00:01:39: Vector = 0x00002000 PC = 0x0161E9D4 MSR = 0x00029210 CR = 0x33000005

                04:21 PM             (switch-name)                  Alert      81: 00:01:39: R0 = 0x0161E9D0 R1 = 0x03C81718 R2 = 0x00000000 R3 = 0x03C74258

                04:21 PM             (switch-name)                  Alert      80: 00:01:39: LR = 0x0161E9D0 CTR = 0x00000000 XER = 0xE0000000

                04:21 PM             (switch-name)                  Alert      75: 00:01:39: SRR0 = 0x00393704 SRR1 = 0x00029210 SRR2 = 0x004CF998 SRR3 = 0x00021000

                04:21 PM             (switch-name)                  Alert      78: 00:01:39: CPU Register Context:

                04:21 PM             (switch-name)                  Alert      77: 00:01:39:

                04:21 PM             (switch-name)                  Alert      76: 00:01:39: ESR = 0x00000000 DEAR = 0x00000000 TSR = 0x8C000000 DBSR = 0x01000000

                04:21 PM             (switch-name)                  Alert      74: 00:01:39:

                04:21 PM             (switch-name)                  Alert      73: 00:01:39: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!

                04:21 PM             (switch-name)                  Alert      72: 00:01:39:

                04:21 PM             (switch-name)                  Alert      71: 00:01:39: Compiled Tue 06-Feb-07 05:20 by antonino

                04:21 PM             (switch-name)                  Alert      70: 00:01:39: Copyright (c) 1986-2007 by Cisco Systems, Inc.

                04:21 PM             (switch-name)                  Alert      69: 00:01:39: Cisco IOS Software, C3750ME Software (C3750ME-I5K91-M), Version 12.2(35)SE2, RELEASE SOFTWARE (fc1)

                04:21 PM             (switch-name)                  Alert      68: 00:01:39: System previously crashed with the following message:

 

Also, in show version I have this:

 

System returned to ROM by address error at PC 0x161E9D4, address 0x0

Switch   Ports  Model              SW Version              SW Image            
------   -----  -----              ----------              ----------          
*    1   28     ME-C3750-24TE      12.2(35)SE2             C3750ME-I5K91-M  

 

After 3rd crush the switch is working fine for several hours, however I dont get syslogs anymore

Any clue why it could happen?

Thank you in advance

 

3 Replies 3

Joseph W. Doherty
Hall of Fame
Hall of Fame

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Posting

Your question is the kind more suitable for TAC, but if you have maintenance, you might consider upgrading your IOS version and see if the problem goes away.

(NB: Unsure it's as applicable to the ME variant, but on "regular" 3750s, 55[SE9] is very solid.)

Dear All,

 

We have already upgraded the IOS, it helped

Thank you for your comments

InayathUlla Sharieff
Cisco Employee
Cisco Employee

I can try helping you if you could provide me show tech output from the box?

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