Re: [PARPORT] Problems with PP SparQ on Thinkpad 390E

From: Johannes Martin (jmartin@csr.csc.uvic.ca)
Date: Wed Mar 08 2000 - 23:34:20 EST

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    Another update:
    The drive is currently working fine:
    -----
    Mar 8 19:59:44 Halef kernel: pd: pd version 1.05, major 45, cluster 64, nice 0
    Mar 8 19:59:44 Halef kernel: pda: Sharing parport0 at 0x378
    Mar 8 19:59:44 Halef kernel: pda: epat 1.01, Shuttle EPAT chip c6 at 0x378, mode 5 (EPP-32), delay 1
    Mar 8 19:59:44 Halef kernel: pda: SyQuest SparQ, master, 1960560 blocks [957M], (1945/16/63), removable media
    Mar 8 19:59:44 Halef kernel: pda: pda1
    (i.e. it was able to read sector 0)
    -----
    I left the drive go idle for a while, then:
            rmmod pd
            modprobe pd
    -----
    Mar 8 20:23:59 Halef kernel: pd: pd version 1.05, major 45, cluster 64, nice 0
    Mar 8 20:23:59 Halef kernel: pda: Sharing parport0 at 0x378
    Mar 8 20:23:59 Halef kernel: pda: epat 1.01, Shuttle EPAT chip c6 at 0x378, mode 5 (EPP-32), delay 1
    Mar 8 20:23:59 Halef kernel: pda: SyQuest SparQ, master, 1960560 blocks [957M], (1945/16/63), removable media
    Mar 8 20:24:00 Halef kernel: pda:pda: do_pd_read_drq: status = 0x10451 = ERR SEEK READY ABRT TMO
    Mar 8 20:24:00 Halef kernel: pda: do_pd_read: status = 0x451 = ERR SEEK READY ABRT
    Mar 8 20:24:00 Halef last message repeated 4 times
    Mar 8 20:24:00 Halef kernel: end_request: I/O error, dev 2d:00 (PD), sector 0
    Mar 8 20:24:01 Halef kernel: unable to read partition table
    -----
    While the system is attempting to read the partition table, it accepts no
    keyboard input at all on the console, then, a few seconds later, all the
    error messages appear on the scrren.

    Reloading pd doesn't help in getting the drive up again in this scenario.
    I have to power cycle the SparQ drive in order to get it back up. Once I
    have done that, it works fine again.

    Help! :(

            Johannes

    On Thu, 9 Mar 2000, Johannes Martin wrote:

    > On Wed, 8 Mar 2000 grant@torque.net wrote:
    > > > pda: do_pd_read: status = 0x4051 = ERR SEEK READY UNC
    > >
    > > UNC is an uncorrectable ECC error (reported by the hardware). Most likely
    > > the media is bad.
    > Thanks for the info. Indeed it seems like one of the media is bad, I can
    > now reproduce this error by running e2fsck on that disk, the error occurs
    > at the same block every time.
    >
    > This still leaves one problem open: why does the sparq drive refuse to do
    > anything at all (except for ejecting the cartridge) once such an error has
    > been encountered?
    >
    > With the disk I am currently using (the one that fails the e2fsck), the
    > first error message usually looks like:
    > pda: do_pd_read_drq: status = 0x14051 = ERR SEEK READY UNC TMO
    > The drive keeps making noises as if it was seeking, until I remove and
    > reload the pd module. Interestingly the pd modules seems to be able to
    > reset the drive, so I can use it again (previously, I had to power down
    > the drive before it would work again).
    >
    > Any help would be appreciated
    > Johannes
    >
    >

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