Machine Check Exception

Discussion in 'Tyan' started by kaushal, May 11, 2010.

  1. kaushal

    kaushal Guest

    I get the below information on the console of Ubuntu Linux 8.04
    server. I did some basic troubleshooting by replacing RAM but did not
    help.Also Please suggest/guide me the further steps to be taken to fix
    this issue.

    #########################################################################################################################
    ata 5.00 : exception Emask 0x1 SAct 0x0 SErr 0X0 action 0x0
    ata 5.00 : CPB resp_flags 0x11 :, CMD error
    ata 5.00 : cmd c8/00:88:6f:f2:01/00:00:00:00:00/e5 tag0 dma 69632
    ata 5.00 : status : {DRDY ERR}
    ata 5.00 : error : {UNC}

    HARDWARE ERROR

    CPU 1 : MACHINE CHECK EXCEPTION
    4 BANK 4 : b200000000070f0f
    TSC 24adf1489e

    This is not a software problem !
    Run through mce-log ascii to decode and contact your hardware vendor

    HARDWARE ERROR

    CPU 0 : MACHINE CHECK EXCEPTION
    4 BANK 4 : b200000000070f0f
    TSC 24adf15158

    This is not a software problem !
    Run through mce-log ascii to decode and contact your hardware vendor

    Kernel Panic - not syncing Machine check

    #########################################################################################################################


    I have replaced all the RAM Chips with the new set and It worked fine
    for sometime and then when i start mysql server the system spew out
    the Machine Check Exception again.I have tried to decode the MCE on a
    test machine using the below method.

    #cat error
    CPU 1 : MACHINE CHECK EXCEPTION 4 BANK 4 : b200000000070f0f
    TSC 24adf1489e
    # /usr/sbin/mcelog --k8 --ascii < error
    HARDWARE ERROR. This is *NOT* a software problem!
    Please contact your hardware vendor
    CPU 1 0 data cache TSC 24adf1489e
    STATUS 0 MCGSTATUS 0
    #cat error
    CPU 0 : MACHINE CHECK EXCEPTION 4 BANK 4 : b200000000070f0f
    TSC 24adf15158
    # /usr/sbin/mcelog --k8 --ascii < error
    HARDWARE ERROR. This is *NOT* a software problem!
    Please contact your hardware vendor
    CPU 0 0 data cache TSC 24adf15158
    STATUS 0 MCGSTATUS 0

    I am not sure what those error means. Please suggest the further
    steps.

    Thanks,

    Kaushal
     
    kaushal, May 11, 2010
    #1
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