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    SubjectRe: SATA exceptions with 2.6.20-rc5
    On Friday, 19. January 2007 16:05, Alistair John Strachan wrote:
    > On Tuesday 16 January 2007 01:53, Jeff Garzik wrote:
    > > Robert Hancock wrote:
    > > > I'll try your stress test when I get a chance, but I doubt I'll run
    > > > into the same problem and I haven't seen any similar reports. Perhaps
    > > > it's some kind of wierd timing issue or incompatibility between the
    > > > controller and that drive when running in ADMA mode? I seem to remember
    > > > various reports of issues with certain Maxtor drives and some nForce
    > > > SATA controllers under Windows at least..
    > >
    > > Just to eliminate things, has disabling ADMA been attempted?
    > >
    > > It can be disabled using the sata_nv.adma module parameter.
    > Setting this option fixes the problem for me. I suggest that ADMA defaults
    > off in 2.6.20, if there's still time to do that.

    Not for me.
    I'm still have the same trouble, but less (maybe about every hour, instead of
    every 5 minutes). futhermore, I found a patch
    cocktail-2.6.20-rc3.patch:, which improves the
    situation too!

    Now, the funny thing is that I've two SATA HDDs, but only 1 causes all the

    The affected drive is a:
    sda - @ata3.0 - WDC WD2500KS-00M 02.0
    ATA-7, max UDMA/133, 488395055 sectors: LBA48

    "ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
    ata3.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 out
    res 40/00:ff:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
    ata3: soft resetting port
    ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
    ata3.00: configured for UDMA/133:PIO0
    ata3: EH complete
    SCSI device sda: 488395055 512-byte hdwr sectors (250058 MB)
    sda: Write Protect is off
    sda: Mode Sense: 00 3a 00 00"

    the "good" HDD is a:
    sdb - @ata4.0 - WDC WD2500YD-01N 10.0
    ATA-7, max UDMA/133, 490234752 sectors: LBA48 NCQ (depth 0/1)

    AMD64 4200+
    nForce 4 SLI
    2 GB
    SMP PREEMPT kernel
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      Last update: 2007-01-19 21:57    [W:0.022 / U:0.044 seconds]
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