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3560 switches randomly rebooting

Hi All,

Our access layer consist mostly of Cisco 3560-48PS switches. Since a couple of week switches randomly start rebooting. When i look in de logging of these switches i see this output:000273: Dec 3 08:29:39: %PLATFORM-1-CRASHED: System previously crashed with the following message:
000274: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Cisco IOS Software, C3560 Software (C3560-IPBASEK9-M), Version 12.2(53)SE1, RELEASE SOFTWARE (fc2)
000275: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Technical Support: http://www.cisco.com/techsupport
000276: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Copyright (c) 1986-2010 by Cisco Systems, Inc.
000277: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Compiled Fri 12-Mar-10 16:54 by prod_rel_team
000278: Dec 3 08:29:39: %PLATFORM-1-CRASHED:
000279: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
000280: Dec 3 08:29:39: %PLATFORM-1-CRASHED:
000281: Dec 3 08:29:39: %PLATFORM-1-CRASHED: SRR0 = 0x027592E8 SRR1 = 0x00029230 SRR2 = 0x011C0628 SRR3 = 0x00029230
000282: Dec 3 08:29:39: %PLATFORM-1-CRASHED: ESR = 0x00000000 DEAR = 0x00000000 TSR = 0x84000000 DBSR = 0x01000000
000283: Dec 3 08:29:39: %PLATFORM-1-CRASHED:
000284: Dec 3 08:29:39: %PLATFORM-1-CRASHED: CPU Register Context:
000285: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Vector = 0x00002000 PC = 0x011C0628 MSR = 0x00029230 CR = 0x35000095
000286: Dec 3 08:29:39: %PLATFORM-1-CRASHED: LR = 0x011C015C CTR = 0x011C0554 XER = 0xA0000060
000287: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R0 = 0x00000001 R1 = 0x04E2CB38 R2 = 0x00000000 R3 = 0x04E2CB80
000288: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R4 = 0xFFFFFFFF R5 = 0x00000025 R6 = 0x04E2CC08 R7 = 0x00000000
000289: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R8 = 0x00000000 R9 = 0x00000000 R10 = 0x06B6843E R11 = 0x00000000
000290: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R12 = 0x0000001C R13 = 0x00110000 R14 = 0x01401434 R15 = 0x00000000
000291: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R16 = 0x00000020 R17 = 0x00000000 R18 = 0x00000000 R19 = 0xFFFFFFFF
000292: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R20 = 0x00000003 R21 = 0x0000027A R22 = 0x00000000 R23 = 0xFFFFFFFF
000293: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R24 = 0x00000000 R25 = 0x0000000D R26 = 0x04E2CC08 R27 = 0x00000000
000294: Dec 3 08:29:39: %PLATFORM-1-CRASHED: R28 = 0xFFFFFFFF R29 = 0x00000000 R30 = 0x0000026D R31 = 0x02CD7744
000295: Dec 3 08:29:39: %PLATFORM-1-CRASHED:
000296: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Stack trace:
000297: Dec 3 08:29:39: %PLATFORM-1-CRASHED: PC = 0x011C0628, SP = 0x04E2CB38
000298: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 00: SP = 0x04E2CBE0 PC = 0x011C015C
000299: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 01: SP = 0x04E2CBF8 PC = 0x011CC114
000300: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 02: SP = 0x04E2CC50 PC = 0x01EFF0BC
000301: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 03: SP = 0x04E2CCA8 PC = 0x01F00068
000302: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 04: SP = 0x04E2CD10 PC = 0x01F01854
000303: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 05: SP = 0x04E2CDA8 PC = 0x01F025D8
000304: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 06: SP = 0x04E2CE30 PC = 0x01F02CFC
000305: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 07: SP = 0x04E2CE50 PC = 0x01407844
000306: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 08: SP = 0x04E2CE70 PC = 0x0140798C
000307: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 09: SP = 0x04E2CE98 PC = 0x0140BF20
000308: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 10: SP = 0x04E2CED8 PC = 0x01411990
000309: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 11: SP = 0x04E2CEF8 PC = 0x014014A8
000310: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 12: SP = 0x04E2CF00 PC = 0x01B6742C
000311: Dec 3 08:29:39: %PLATFORM-1-CRASHED: Frame 13: SP = 0x00000000 PC = 0x01B5DEB8
000312: Dec 3 08:29:39: %PLATFORM-1-CRASHED:  

I have no clue what this means and why it happens. Is this a hardware failure, software bug or config failure?? I can't open a TAC case because these switches are EOS, but we still have to use these switches. Why causes this and is there a way to solve this issue?

1 Reply 1

Mark Malone
VIP Alumni
VIP Alumni

Hey


looks like software crash upgrade to new ios would be the first thing i would do , why i say that if you look at the sh ver you will see

System returned to ROM by address error at PC 0x11C0628, address 0x0

Less Common Types of System Crashes

Address Error

Address errors occur when the software tries to access data on incorrectly-aligned boundaries; two-byte and four-byte accesses are allowed only on even addresses. An address error usually indicates a software bug, but faulty hardware can also be a cause

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