Parity Error Help

2003-05-02
2003-05-05
  • Jonathan Gottlieb

    I am experiencing infrequent random parity errors when connecting a SCSI disk to my Adaptec APA-1460D SlimSCSI card.  The laptop I am using is a RocketBrick2A manufactured by The Brick Computer Company.  The version of Linux that is loaded on the machine is 2.4.10-4GB.  Model of the disk is an HP C3323-300.  Disk is accessed as a raw unformatted SCSI device.  Below is the data from /var/log/messages.  Any insight into the possible causes of the error are greatly appreciated.

    Thanks,
    Jonathan

    ------------------

    /var/log/messages Data:

    Apr 27 08:45:10 slic2 cardmgr[889]: initializing socket 0
    Apr 27 08:45:10 slic2 kernel: cs: memory probe 0xa0000000-0xa0ffffff: clean.
    Apr 27 08:45:10 slic2 cardmgr[889]: socket 0: Adaptec APA-1460 SlimSCSI
    Apr 27 08:45:10 slic2 cardmgr[889]: executing: 'insmod -v /lib/modules/2.4.10-4GB//pcmcia/aha152x_cs.o'
    Apr 27 08:45:10 slic2 cardmgr[889]: + Using /lib/modules/2.4.10-4GB//pcmcia/aha152x_cs.o
    Apr 27 08:45:10 slic2 cardmgr[889]: + Symbol version prefix ''
    Apr 27 08:45:11 slic2 kernel: aha152x: processing commandline: ok
    Apr 27 08:45:11 slic2 kernel: aha152x: BIOS test: passed, detected 1 controller(s)
    Apr 27 08:45:11 slic2 kernel: aha152x: resetting bus...
    Apr 27 08:45:11 slic2 kernel: aha152x0: vital data: rev=1, io=0x340 (0x340/0x340), irq=3, scsiid=7, reconnect=enabled, parity=enabled, synchronous=disabled, delay=100, extended translation=disabled
    Apr 27 08:45:11 slic2 kernel: aha152x0: trying software interrupt, ok.
    Apr 27 08:45:11 slic2 kernel: scsi0 : Adaptec 152x SCSI driver; $Revision: 2.4 $
    Apr 27 08:45:12 slic2 PAM-unix2[836]: session finished for user root, service su
    Apr 27 08:45:12 slic2 kernel:   Vendor: HP        Model: C3323-300         Rev: 5011
    Apr 27 08:45:12 slic2 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 02
    Apr 27 08:45:12 slic2 kernel: Attached scsi disk sda at scsi0, channel 0, id 6, lun 0
    Apr 27 08:45:12 slic2 kernel: SCSI device sda: 2056008 512-byte hdwr sectors (1053 MB)
    Apr 27 08:45:12 slic2 cardmgr[889]: executing: './scsi start sda'
    Apr 27 08:45:12 slic2 kernel:  sda: unknown partition table
    Apr 27 08:45:13 slic2 cardmgr[889]: + SuSE,sd,0,0,6,0
    Apr 27 08:45:18 slic2 kernel: (scsi0:6:0) datai sempty timeout<3>(scsi0:6:0) fifos should be empty and phase should have changed
    Apr 27 08:45:18 slic2 kernel: (scsi0:6:0) manual transfer count differs from automatic (count=63990;stcnt=64022;diff=30;fifostat=27)<3>(scsi0:6:0) parity error
    Apr 27 08:46:18 slic2 kernel: (scsi0:6:0) cannot abort running or disconnected command
    Apr 27 08:46:41 slic2 su: (to nobody) root on none
    Apr 27 08:46:41 slic2 PAM-unix2[1033]: session started for user nobody, service su
    Apr 27 08:47:58 slic2 kernel: aha152x: timer expired
    Apr 27 08:47:58 slic2 kernel: aha152x0: scsi reset in
    Apr 27 08:48:03 slic2 kernel: (scsi0:6:0) datai sempty timeout<3>(scsi0:6:0) fifos should be empty and phase should have changed
    Apr 27 08:48:03 slic2 kernel: (scsi0:6:0) manual transfer count differs from automatic (count=105465;stcnt=105570;diff=100;fifostat=94)<6>(scsi0:6:0) reselection missed?<3>(scsi0:6:0) parity error
    Apr 27 08:49:03 slic2 kernel: (scsi0:6:0) cannot abort running or disconnected command
    Apr 27 08:49:03 slic2 kernel: scsi: device set offline - not ready or command retry failed after bus reset: host 0 channel 0 id 6 lun 0
    Apr 27 08:49:03 slic2 kernel:  I/O error: dev 08:00, sector 976
    Apr 27 08:49:03 slic2 kernel:  I/O error: dev 08:00, sector 1230
    Apr 27 08:49:03 slic2 kernel:  I/O error: dev 08:00, sector 976
    Apr 27 08:49:03 slic2 kernel:  I/O error: dev 08:00, sector 960

     
    • David Hinds

      David Hinds - 2003-05-05

      Do you have some reason for not taking the errors at face value (i.e. that you have a hardware problem)?  Have you used any other SCSI devices with this setup?  Is the drive properly terminated and also configured to supply termination power?

      -- Dave

       

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