From: Joseph Brunner (joe@affirmedsystems.com)
Date: Wed Jun 04 2008 - 03:24:40 ART
it just crashed my router! (real router not dynamips)
Router#show vers
Cisco IOS Software, C2600 Software (C2600-ENTSERVICESK9-M), Version
12.4(12), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 17-Nov-06 11:18 by prod_rel_team
ROM: System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Router uptime is 0 minutes
System returned to ROM by error - a SegV exception, PC 0x802404F0
System image file is "flash:c2600-entservicesk9-mz.124-12.bin"
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Cisco 2621XM (MPC860P) processor (revision 2.0) with 94540K/3764K bytes of
memory.
Processor board ID JAE08093ZSJ
M860 processor: part number 5, mask 2
2 FastEthernet interfaces
32K bytes of NVRAM.
32768K bytes of processor board System flash (Read/Write)
Configuration register is 0x2142
Router#Show run | b (.*)(\1)+
: Unexpected exception to CPUvector 1200, PC = 0x8006A8D0, LR = 0x8006A880
-Traceback= 0x8006A8D0
CPU Register Context:
MSR = 0x00001032 CR = 0x30003009 CTR = 0x825B5820 XER = 0xE000063F
R0 = 0x825B57B4 R1 = 0x83F469B4 R2 = 0x83D80000 R3 = 0x00000000
R4 = 0x00000001 R5 = 0x80000000 R6 = 0x83D80000 R7 = 0x00000000
R8 = 0x00000000 R9 = 0x825B57B4 R10 = 0x00000000 R11 = 0x3D2083D8
R12 = 0x50003003 R13 = 0xFFF4B634 R14 = 0x81121570 R15 = 0x00000000
R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x83095B38
R20 = 0xFFFFFFFF R21 = 0x00000000 R22 = 0x199CD903 R23 = 0x83F47D20
R24 = 0x83F47DB0 R25 = 0x83875D8C R26 = 0x00000000 R27 = 0x847A04A0
R28 = 0x00000004 R29 = 0x00000001 R30 = 0x802828F8 R31 = 0x00000000
: Unexpected exception to CPUvector 1200, PC = 0x80068AE0, LR = 0x80068A18
-Traceback= 0x80068AE0
CPU Register Context:
MSR = 0x00001032 CR = 0x30003009 CTR = 0x810D6BB4 XER = 0xC000063F
R0 = 0x842AD65F R1 = 0x83F4680C R2 = 0x83D80000 R3 = 0x00000006
R4 = 0x83F4683C R5 = 0x83F46874 R6 = 0x83D80000 R7 = 0x68010000
R8 = 0x00000006 R9 = 0x94D62F84 R10 = 0x00000000 R11 = 0x00000000
R12 = 0x00000000 R13 = 0xFFF4B634 R14 = 0x81121570 R15 = 0x00000000
R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x83095B38
R20 = 0xFFFFFFFF R21 = 0x00000000 R22 = 0x199CD903 R23 = 0x83D80000
R24 = 0x83800000 R25 = 0x842AD5D8 R26 = 0x815BB5A0 R27 = 0x00000006
R28 = 0x842AD65F R29 = 0x842AD608 R30 = 0x842AD608 R31 = 0x842AD608
Nested write_crashinfo call (2 times)
=== Flushing messages () ===
: Unexpected exception to CPUvector 1200, PC = 0x802404F0, LR = 0x802404BC
-Traceback= 0x802404F0
CPU Register Context:
MSR = 0x00001032 CR = 0x30003005 CTR = 0x810D7140 XER = 0xC000063F
R0 = 0x84292AB8 R1 = 0x83F46A54 R2 = 0x83D80000 R3 = 0x841DFE80
R4 = 0xFFFFFFFE R5 = 0x00000000 R6 = 0x83D80000 R7 = 0x68010000
R8 = 0x00001032 R9 = 0x84292A88 R10 = 0x83B80000 R11 = 0x84292A88
R12 = 0x00000000 R13 = 0xFFF4B634 R14 = 0x81121570 R15 = 0x00000000
R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x83095B38
R20 = 0xFFFFFFFF R21 = 0x00000000 R22 = 0x199CD903 R23 = 0x83D80000
R24 = 0x83800000 R25 = 0x842AD5D8 R26 = 0x815BB5A0 R27 = 0x00000006
R28 = 0x842AD65F R29 = 0x00000002 R30 = 0x00000000 R31 = 0x0000000B
*** System received a SegV exception ***
signal= 0xb, code= 0x1200, context= 0x83f457c0
PC = 0x802404f0, Vector = 0x1200, SP = 0x83f46a54
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Patrick Galligan
Sent: Wednesday, June 04, 2008 1:47 AM
To: Narbik Kocharians
Cc: Jafar T; 2008ccie@live.com; ccielab@groupstudy.com
Subject: Re: how to crash a router?
Just tried it on a number of routers and switches, with various IOS
versions, and on Dynamips. I get the traceback, but it doesn't crash
the router. Version and/or platform specific?
On Wed, Jun 4, 2008 at 12:07 PM, Narbik Kocharians <narbikk@gmail.com>
wrote:
> Try this:
> Show run | b (.*)(\1)+
>
> hahahahahaha don't do it on the production router.
>
> On Tue, Jun 3, 2008 at 6:38 PM, Jafar T <jafar@paris.com> wrote:
>
>> simulate high traffic,
>>
>> then do a debug ip.
>>
>>
>> --
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