System received a Bus Error exception

Discussion in 'Cisco' started by nlcny@yahoo.com, Oct 19, 2007.

  1. Guest

    One of my Cisco 3640 routers keep crashing lately, giving the
    following on the console--

    -Traceback= 610561EC 610688F4 610484D4
    *** System received a Bus Error exception ***
    signal= 0xa, code= 0xc, context= 0x61c87ab0
    PC = 0x6043542c, Cause = 0x420, Status Reg = 0x34018002

    A 'show region' is below:

    Region Manager:

    Start End Size(b) Class Media Name
    0x03A00000 0x03FFFFFF 6291456 Iomem R/W iomem
    0x30000000 0x30FFFFFF 16777216 Flash R/O flash
    0x60000000 0x639FFFFF 60817408 Local R/W main
    0x60008950 0x61155ABF 18141552 IText R/O main:text
    0x61156000 0x61AE71DF 10031584 IData R/W main:data
    0x61AE71E0 0x61D5151F 2532160 IBss R/W main:bss
    0x61D51520 0x639FFFFF 30075616 Local R/W main:heap
    0x80000000 0x839FFFFF 60817408 Local R/W main:(main_k0)
    0xA0000000 0xA39FFFFF 60817408 Local R/W main:(main_k1)


    Can someone please confirm what may be the cause of the problem? Thanks
     
    , Oct 19, 2007
    #1
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  2. Merv Guest

    Merv, Oct 19, 2007
    #2
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  3. Peter Guest

    Greetings...

    On Fri, 19 Oct 2007 15:58:46 UTC, wrote:

    > One of my Cisco 3640 routers keep crashing lately, giving the
    > following on the console--
    >
    > -Traceback= 610561EC 610688F4 610484D4
    > *** System received a Bus Error exception ***
    > signal= 0xa, code= 0xc, context= 0x61c87ab0
    > PC = 0x6043542c, Cause = 0x420, Status Reg = 0x34018002
    >
    > A 'show region' is below:
    >
    > Region Manager:
    >
    > Start End Size(b) Class Media Name
    > 0x03A00000 0x03FFFFFF 6291456 Iomem R/W iomem
    > 0x30000000 0x30FFFFFF 16777216 Flash R/O flash
    > 0x60000000 0x639FFFFF 60817408 Local R/W main
    > 0x60008950 0x61155ABF 18141552 IText R/O main:text
    > 0x61156000 0x61AE71DF 10031584 IData R/W main:data
    > 0x61AE71E0 0x61D5151F 2532160 IBss R/W main:bss
    > 0x61D51520 0x639FFFFF 30075616 Local R/W main:heap
    > 0x80000000 0x839FFFFF 60817408 Local R/W main:(main_k0)
    > 0xA0000000 0xA39FFFFF 60817408 Local R/W main:(main_k1)
    >
    >
    > Can someone please confirm what may be the cause of the problem? Thanks


    The key is

    > *** System received a Bus Error exception ***

    This is indicative of a Hardware failure. I have seen something
    similar with an old 4700 Router, it would crash at random intervals,
    anything between 4 hours to 4 weeks of operation, regardles of any
    obvious operation. Replacing the router cured the problem.

    Cisco H/W failures are not always common, but they do happen......;-)

    Cheers............pk.

    --
    Peter from Auckland.
     
    Peter, Oct 19, 2007
    #3
  4. Merv Guest

    Post output of show version and show stack
     
    Merv, Oct 19, 2007
    #4
  5. Merv Guest

    Also Cisco docs on troubleshooting bus errors also suggest trying to
    upgrade IOS software in the event the issue is osftware rleated
     
    Merv, Oct 20, 2007
    #5
  6. Guest

    On Oct 19, 4:34 pm, Merv <> wrote:
    > Post output of show version and show stack


    Here they here, thanks. I know the IOS is old but we don't have
    support to get the upgrade and the router has been operating without
    issues for over 2 years.

    ------------------ show version ------------------

    Cisco Internetwork Operating System Software
    IOS (tm) 3600 Software (C3640-IS-M), Version 12.2(1), RELEASE SOFTWARE
    (fc2)
    Copyright (c) 1986-2001 by cisco Systems, Inc.
    Compiled Fri 27-Apr-01 03:19 by cmong
    Image text-base: 0x60008950, data-base: 0x61156000

    ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE
    SOFTWARE (fc1)

    uptime is 13 hours, 40 minutes
    System returned to ROM by bus error at PC 0x610561EC, address 0x1
    System image file is "flash:c3640-is-mz.122-1.bin"

    cisco 3640 (R4700) processor (revision 0x00) with 59392K/6144K bytes
    of memory.
    Processor board ID 26388688
    R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
    Bridging software.
    X.25 software, Version 3.0.0.
    SuperLAT software (copyright 1990 by Meridian Technology Corp).
    1 FastEthernet/IEEE 802.3 interface(s)
    1 ATM network interface(s)
    DRAM configuration is 64 bits wide with parity disabled.
    125K bytes of non-volatile configuration memory.
    16384K bytes of processor board System flash (Read/Write)

    Configuration register is 0x2102



    ------------------ show stacks ------------------


    Minimum process stacks:
    Free/Size Name
    5604/6000 DHCPD Receive
    8116/12000 Init
    5288/6000 RADIUS INITCONFIG
    8720/12000 Virtual Exec

    Interrupt level stacks:
    Level Called Unused/Size Name
    1 40679547 7964/9000 Network interfaces
    2 11608 8620/9000 DMA/Timer Interrupt
    3 0 9000/9000 PA Management Int Handler
    4 47 8616/9000 Console Uart
    5 0 9000/9000 External Interrupt
    7 12310505 8604/9000 NMI Interrupt Handler

    System was restarted by bus error at PC 0x610561EC, address 0x1
    3600 Software (C3640-IS-M), Version 12.2(1), RELEASE SOFTWARE (fc2)
    Compiled Fri 27-Apr-01 03:19 by cmong (current version)
    Image text-base: 0x60008950, data-base: 0x61156000


    Stack trace from system failure:
    FP: 0x61E41358, RA: 0x610561EC
    FP: 0x61E413D0, RA: 0x610688F4
    FP: 0x61E41408, RA: 0x610484D4


    ***************************************************
    ******* Information of Last System Crash **********
    ***************************************************
     
    , Oct 22, 2007
    #6
  7. Merv Guest

    System was restarted by bus error at PC 0x610561EC, address 0x1

    the above message with an invalid memory address suggest that the
    issue is potentially a software bug.

    Not that you software is old but it is the first release of 12.2

    are all of your 3640's running the same release ?

    You really should get a minimal support contract ( 8 x 5 NBD ) so you
    can upgrade the software

    has anything changed in your environment lately in terms of volume or
    type of traffic that is hitting this box ?

    Any config changes ?

    do you have an OC3 ATM interface in the 3640 ???

    =============================================

    The failure was caused by a software defect.Note that this is a bus
    error crash
    and can also be hardware related.Please read Troubleshooting Bus Error
    Crashes
    for more details,especially if no bug from the list seems to match
    your issue.

    The stack trace decoded symbols are:
    rs8234_data_receive_complete
    rs8234_data_receive_complete
    rs8234_data_receive_complete
    atmoc3_rs8234_interrupt
    atmoc3_pm5346
     
    Merv, Oct 22, 2007
    #7
  8. Merv Guest

    On Oct 22, 2:48 pm, Merv <> wrote:
    > System was restarted by bus error at PC 0x610561EC, address 0x1
    >
    > the above message with an invalid memory address suggest that the
    > issue is potentially a software bug.
    >
    > Not that you software is old but it is the first release of 12.2
    >
    > are all of your 3640's running the same release ?
    >
    > You really should get a minimal support contract ( 8 x 5 NBD ) so you
    > can upgrade the software
    >
    > has anything changed in your environment lately in terms of volume or
    > type of traffic that is hitting this box ?
    >
    > Any config changes ?
    >
    > do you have an OC3 ATM interface in the 3640 ???
    >
    > =============================================
    >
    > The failure was caused by a software defect.Note that this is a bus
    > error crash
    > and can also be hardware related.Please read Troubleshooting Bus Error
    > Crashes
    > for more details,especially if no bug from the list seems to match
    > your issue.
    >
    > The stack trace decoded symbols are:
    > rs8234_data_receive_complete
    > rs8234_data_receive_complete
    > rs8234_data_receive_complete
    > atmoc3_rs8234_interrupt
    > atmoc3_pm5346



    Are you experiencing a lot of errors of the ATM interfce

    post show interface for the ATM interface

    then clear counters and monitor

    how many ATM PVC's are configured on interface ?
     
    Merv, Oct 22, 2007
    #8
  9. Guest

    Merv, thanks so much for your replies and insights. Much appreciate
    it.

    Yea, all our 3640's are running the same IOS release. The one that's
    having issues does have an ATM interface that's connected via DS3 to a
    disaster recovery site. The config hasn't been changed, nor has
    traffic increased since it went live 2 years ago. I'll see if I can
    get the IOS upgraded.

    Thanks again.

    The partial show int is below:

    ATM0/0 is up, line protocol is up
    Hardware is RS8234 ATM DS3
    Internet address is x.x.x.x/30
    MTU 4470 bytes, sub MTU 4470, BW 45000 Kbit, DLY 190 usec,
    reliability 255/255, txload 3/255, rxload 2/255
    Encapsulation ATM, loopback not set
    Keepalive not supported
    Encapsulation(s): AAL5
    1024 maximum active VCs, 1 current VCCs
    VC idle disconnect time: 300 seconds
    Last input 00:00:22, output 00:00:00, output hang never
    Last clearing of "show interface" counters never
    Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
    1041
    Queueing strategy: Per VC Queueing
    30 second input rate 362000 bits/sec, 148 packets/sec
    30 second output rate 699000 bits/sec, 148 packets/sec
    73141416 packets input, 4166298791 bytes, 0 no buffer
    Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
    85323223 packets output, 265472058 bytes, 0 underruns
    0 output errors, 0 collisions, 1 interface resets
    0 output buffer failures, 0 output buffers swapped out


    On Oct 22, 2:48 pm, Merv <> wrote:
    > System was restarted by bus error at PC 0x610561EC, address 0x1
    >
    > the above message with an invalid memory address suggest that the
    > issue is potentially a software bug.
    >
    > Not that you software is old but it is the first release of 12.2
    >
    > are all of your 3640's running the same release ?
    >
    > You really should get a minimal support contract ( 8 x 5 NBD ) so you
    > can upgrade the software
    >
    > has anything changed in your environment lately in terms of volume or
    > type of traffic that is hitting this box ?
    >
    > Any config changes ?
    >
    > do you have an OC3 ATM interface in the 3640 ???
    >
    > =============================================
    >
    > The failure was caused by a software defect.Note that this is a bus
    > error crash
    > and can also be hardware related.Please read Troubleshooting Bus Error
    > Crashes
    > for more details,especially if no bug from the list seems to match
    > your issue.
    >
    > The stack trace decoded symbols are:
    > rs8234_data_receive_complete
    > rs8234_data_receive_complete
    > rs8234_data_receive_complete
    > atmoc3_rs8234_interrupt
    > atmoc3_pm5346
     
    , Oct 24, 2007
    #9
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