Cisco 2600 boot loop

Discussion in 'Cisco' started by Fernando Donate, Jun 18, 2004.

  1. This is the console output:

    Smart Init is disabled. IOMEM set to: 10
    Using iomem percentage: 10
    Unexpected exception to CPUvector 200, PC = 804D7B88
    -Traceback= 804D7B88 804D7050 804D6830 810E30AC 804D41E0 804D42C4
    804540C4 80370
    664 80370858 8045B540 8045EA68
    Free space check for flash:crashinfo_19930301-000009 failed (64/578)

    === Flushing messages (00:00:09 UTC Mon Mar 1 1993) ===

    Queued messages:
    *Mar 1 00:00:09.739: %SYS-3-LOGGER_FLUSHING: System pausing to ensure
    console d
    ebugging output.
    *Mar 1 00:00:05.059: %LINEPROTO-5-UPDOWN: Line protocol on Interface
    , changed state to up
    *** System received a Bus Error exception ***
    signal= 0xa, code= 0x200, context= 0x827b6418
    PC = 0x804d7b88, Vector = 0x200, SP = 0x828c9128

    Sometimes the error is "Bus error exception" other "SegV exception".
    I use confreg 0x2142 at rommon but the router always is 'looping'. I
    removed all hardware devices (VIC 2FXS) and reseat the memory in
    chasis (RAM,flash) but no luck.

    Any solutions? How can I enable smart init? I need help!

    Fernando Donate, Jun 18, 2004
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  2. Fernando Donate

    Kevin Widner Guest

    If you have a show ver for this router, paste the show ver followed by
    that traceback into the output interpreter at Cisco.

    Kevin Widner, Jun 18, 2004
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  3. Hola Fernando.

    Usually, a boot loop caused by a bus error exception is hardware
    related, Rarely, the bus error exception boot loop can be caused by a
    software fault.

    Did you verify that all network cards are supported by the Cisco IOS
    Software to check the minimum versions of Cisco IOS Software needed
    for hardware?
    Also try to remove the cards and reload the router. If the router
    boots without errors, add cards one at a time to discover the faulty
    module. If removing the cards does not solve the problem, try
    reseating the system Flash and DRAM.

    Victor Cappuccio
    Victor Cappuccio, Jun 19, 2004
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