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    SubjectRe: 2.5.69 and ide-floppy errors
    On Sun, May 11 2003, Bartlomiej Zolnierkiewicz wrote:
    >
    > On Sun, 11 May 2003, Gregoire Favre wrote:
    >
    > > On Sun, May 11, 2003 at 02:35:48PM +0200, Bartlomiej Zolnierkiewicz wrote:
    > > >
    > > > Hi,
    > > >
    > > > Don't compile TCQ support in.
    > > > What do you have on hda and hdb?
    > >
    > > Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
    > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    > > ICH4: IDE controller at PCI slot 00:1f.1
    > > ICH4: chipset revision 1
    > > ICH4: not 100% native mode: will probe irqs later
    > > ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio
    > > ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:pio
    > > hda: IC35L120AVVA07-0, ATA DISK drive
    > > hdb: IOMEGA ZIP 250 ATAPI, ATAPI FLOPPY drive
    > > hda: tagged command queueing enabled, command queue depth 8
    > > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    > > hdc: SONY DVD RW DRU-500A, ATAPI CD/DVD-ROM drive
    > > ide1 at 0x170-0x177,0x376 on irq 15
    > > hda: host protected area => 1
    > > hda: 241254720 sectors (123522 MB) w/1863KiB Cache, CHS=239340/16/63, UDMA(100)
    > > /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 p4 < p5 p6 >
    > > hdc: ATAPI 16X DVD-ROM DVD-R CD-R/RW drive, 8192kB Cache, UDMA(33)
    > >
    > > I'll recompil without TCQ: thank you very much for the info!!!
    >
    > Thanks for report.
    >
    > Jens, can you comment on this issue. TCQ shouldn't be enabled
    > when there is other device on a channel?

    Correct, that needs a check. It should work, but is far from optimal
    both from the software and hardware point of view... So I'd much rather
    just keep TCQ enabled only on a single drive on a channel. That way I
    don't have to deal with the ide tcq stupidities.

    --
    Jens Axboe

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