UDMA ICRC error

From: Roberto Nunnari (nunnari_at_die.supsi.ch)
Date: 05/24/03

  • Next message: Zer0: "Re: UDMA ICRC error" 
    Date: Sat, 24 May 2003 20:45:32 +0200
To: freebsd-stable@freebsd.org

    Hi there.

    OS version: FreeBSD 4.7-Stable FreeBSD #3

    I just added a disk to my box and after playing with
    fdisk and disklabel with this configuration:

    fdisk:
    ****************************************************************
    g c16383 h16 s63
    p 1 165 0 39102336
    ****************************************************************

    disklabel
    ****************************************************************
    # /dev/ad1c:
    type: ESDI
    disk: ad1s1
    label:
    flags:
    bytes/sector: 512
    sectors/track: 63
    tracks/cylinder: 16
    sectors/cylinder: 1008
    cylinders: 16383
    sectors/unit: 39102336
    rpm: 3600
    interleave: 1
    trackskew: 0
    cylinderskew: 0
    headswitch: 0 # milliseconds
    track-to-track seek: 0 # milliseconds
    drivedata: 0

    8 partitions:
    # size offset fstype [fsize bsize bps/cpg]
       a: 524288 0 4.2BSD 2048 16384 94 # (Cyl. 0 - 520*)
       b: 524288 524288 4.2BSD 2048 16384 94 # (Cyl. 520*- 1040*)
       c: 39102336 0 unused 0 0 # (Cyl. 0 - 38791*)
       d: 524288 1048576 4.2BSD 2048 16384 94 # (Cyl. 1040*- 1560*)
       e: 37529472 1572864 4.2BSD 2048 16384 94 # (Cyl. 1560*- 38791*)
    ****************************************************************

    I have that (to me) crypted errore message..

    can anybody tell me what does that UDMA ICRC error means?

    May 24 19:58:30 saturn /kernel: ad0: DMA limited to UDMA33, non-ATA66 cable or
    device
    May 24 19:58:30 saturn /kernel: ad0: 9770MB <Maxtor 91021U2> [19852/16/63] at
    ata0-master UDMA33
    May 24 19:58:30 saturn /kernel: ad1: 19092MB <Maxtor 2B020H1> [38792/16/63] at
    ata1-master UDMA33
    May 24 19:58:30 saturn /kernel: Mounting root from ufs:/dev/ad0s1a
    May 24 19:58:30 saturn /kernel: ad1s1a: UDMA ICRC error reading fsbn 32 of 16-31
    (ad1s1 bn 32; cn 0 tn 0 sn 32) retrying
    May 24 19:58:30 saturn last message repeated 2 times
    May 24 19:58:30 saturn /kernel: ad1s1a: UDMA ICRC error reading fsbn 32 of 16-31
    (ad1s1 bn 32; cn 0 tn 0 sn 32) falling back to PIO mode

    Please, also send replies to my mailbox, as I'm not on
    the list.

    Thanks for your help.

    Regards. 

    -- 
               Roberto Nunnari -software engineer-
                 mailto:nunnari@die.supsi.ch
  Scuola Universitaria Professionale della Svizzera Italiana
            Dipartimento di Informatica e Elettronica
                   http://www.die.supsi.ch
  SUPSI-DIE
  Via Cantonale                        tel: +41-91-6108561
  6928 Manno                 """       fax: +41-91-6108570
  Switzerland               (o o)
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