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New Member

Unexpected exception to CPUvector 1400 problem on route 1811

Hello ,

My router is rebooting 3 times for two days.It's 1811 , and after the reboot the crashinfo file shows every tim the same message :

11:17:06 PCTime Wed Jan 24 2007: Unexpected exception to CPUvector 1400, PC = 0x80855AF4, LR = 0x80854A70

-Traceback= 0x80855AF4 0x80854528 0x8083F6D4 0x8083FE7C 0x8084083C 0x80840A54 0x80BB2E64 0x80BB3250 0x814B6834 0x800950E8 0x800C3BC0 0x800C7170

CPU Register Context:

MSR = 0x00029220 CR = 0x40000008 CTR = 0x00000000 XER = 0x00000000

R0 = 0x00029220 R1 = 0x83F2CFF0 R2 = 0xFFE97C10 R3 = 0x83F2D030

R4 = 0xFFFFFFFF R5 = 0x00000025 R6 = 0x83F2D470 R7 = 0x00000000

R8 = 0x00000000 R9 = 0x00029220 R10 = 0x00000000 R11 = 0x00000003

R12 = 0x0000001A R13 = 0xFFE994A8 R14 = 0x00000000 R15 = 0x00000279

R16 = 0x00000020 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x00000000

R20 = 0x00000000 R21 = 0xFFFFFFFF R22 = 0x00000000 R23 = 0xFFFFFFFF

R24 = 0x00000000 R25 = 0x00000035 R26 = 0xFFFFFFFF R27 = 0x00029220

R28 = 0x83F2D470 R29 = 0x00000002 R30 = 0x00000244 R31 = 0x83F2D000

=== Start of Crashinfo Collection (11:17:06 PCTime Wed Jan 24 2007) ===

First i want to ask what means problem in CPUvector 1400 because i searched it int the net but with no results for now.

I think that upgrade to higher version will solve the problem , but the funny thing here is that i have 11 router like the one with the rebooting problem. They are all configured in same configuration, IOS version , modules ,etc

like the rebooting router and everything it's ok with them.

I think the following info is needed

Router 1811

Cisco IOS Software, C181X Software (C181X-ADVIPSERVICESK9-M), Version 12.4(2)T1,


ROM: System Bootstrap, Version 12.3(8r)YH5, RELEASE SOFTWARE (fc1)

System image file is "flash:c181x-advipservicesk9-mz.124-2.T1.bin"

Thanks in advance :)


Re: Unexpected exception to CPUvector 1400 problem on route 1811

You are hitting the bug :CSCsa79340. Upgrade IOS to 12.4(4)T1 would fix the bug.

New Member

Re: Unexpected exception to CPUvector 1400 problem on route 1811

Thnaks for the perfect answer. According to the CSCsa79340 bug i found another forum post saying a problem like mine. There is memory leak after specific amount of denys ACL was logged , causing router reload wich is exactly my case. I'll try stop logging for the current ACL and test , or upgrade to the 12.4(4)T1 . Thanks again for the troubleshooting ;-)

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