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    SubjectStrange thing about a bug report
    Hi!

    Sorry to annoy you all, but I would like a quick suggestion about a
    problem I have submitting a bug report about my UDMA66 card to either
    linux-kernel or Andre Hedrick.

    I have sent the attached bug report (email) twice to Andre, and once to
    the linux-kernel, and I am afraid that it never reached the destination:
    I read linux-kernel every day, and my message did not appear, and I sent
    an 'if-you-ignore-my-message-pls-blind-reply' to Andre, and nothing so
    far.

    My box is not in the ORBS database, so I do not know what on earth (inet;)
    could be the problem.

    The bug is described in the attach.

    Thx 4 your kind help,

    -- SaPE

    Peter Sasi <sape@sch.hu>

    From sape@iq.rulez.org Sun Jan 16 12:59:27 2000
    Date: Wed, 12 Jan 2000 15:44:54 +0100 (CET)
    From: Sasi Peter <sape@iq.rulez.org>
    To: linux-kernel@vger.rutgers.edu
    Subject: Re: Bug report (fwd)

    Hi@

    Here is a bug report for IDE extended twice, with updates.
    I forward it here, because I thought I sent it to Andre, but now I think,
    maybe I can better reach him here.

    -- SaPE

    Peter Sasi <sape@sch.hu>

    ---------- Forwarded message ----------
    Subject: Re: Bug report

    On Tue, 11 Jan 2000, Sasi Peter wrote:
    > On Tue, 11 Jan 2000, Sasi Peter wrote:
    > > This is supposed to be a bug report.
    > > The setup:
    > > disk 1: WDC AC420400D
    > > disk 2: WDC WD68BA
    > > disk 3: WDC AC420400D
    > > disk 4: 32x Sony ATAPI CDROM
    > > Abit BH6 MB, 256MB RAM, Celeron 400 (slotA), Abit HotRod
    > > Yesterday:
    > > Redhat 2.2.12-20 kernel (raid 0.90)
    > > disks: 1 is hda, 2 is hdb, 3 is hdc, 4 is hdd
    > > ribbon0 on ide0, ribbon1 on ide1, both 40 wire
    > > hdd often reports media change, although no activity is present, and the
    > > drive is empty.
    > > hdc does not work 'tuned up': hdparm -d1 -c1 is reliable, but -u1 -m8
    > > makes it have same DMA timeouts.
    > > I suspected, that the ide1 cable was faulty
    > > Today:
    > > stock 2.2.14+raid0145-19990824-2.2.14+ide.2.2.14.20000108(use DMA if
    > > avail., PIIX tuning enabled)
    > > disks: 3 is hda, 4 is hdd, 2 is hde and 1 is hdg
    > > 3 is udma33, 2 and 1 are udma66
    > > ribbon0 on ide0, ribbon1 on ide1
    > > two 80 wire (come with the HotRod) ribbons on ide2 and ide3
    > > now hdg shows:
    > > Jan 11 08:28:26 iq kernel: hdg: timeout waiting for DMA
    > > Jan 11 08:28:26 iq kernel: hdg: irq timeout: status=0x58 { DriveReady
    > > SeekComplete DataRequest }
    > > Jan 11 08:28:26 iq kernel: hdg: DMA disabled
    > > Jan 11 08:28:26 iq kernel: ide3: reset: success
    > > If I reenable DMA for it, it has the same error in seconds, and DMA
    > > disables again.
    > One more think to report here:
    >
    > I tried to use ide0=dma ide2=dma ide3=dma boot options, and thig got even
    > worse:
    > Even hde started to get a DMA timeout, and after that error message the
    > box locked hard.

    Even worse: with your 0111 patch it frrezes hard without a printed error,
    just at the beggining fscking the volumes not unmounted clean. Currently I
    have hdparm -d0 for all drives at the beginning of sysinit, so I can only
    operate w/o dma, so the server function is onoperational.

    Can you help w/ advices/some patch?

    > > Otherwise the system is under considerable multimedia load (static video
    > > and audio mpeg streams from the raid0 on the 3 drives), ~1TB/4day out on
    > > my 100Mbps ethernet adapter.
    > >
    > > One more weird thing: during the change once I booted the new kernel (DMA
    > > and tuning enabled) with the old layout, all the disks on PIIX, and it did
    > > an fsck (because of solely the mount count), and it just failed with a
    > > short read on the last partition from hdc. Rebooting with the old kernel
    > > it did the fsck again, and it passed without complaints.
    > >
    > > What part of my system do you think causes all the mess?

    Thanks in advance.

    -- SaPE

    Peter Sasi <sape@sch.hu>


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