IDE read problem with ht6560a fixed in ide- patches only

From: Petr Soucek (petr@ryston.cz)
Date: Sat Jul 15 2000 - 07:37:18 EDT

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    Hi,

    my 486 box with Holtek HT6560A ide vlb controller works only with 2.2
    kernel with Andre Hedrick's patches - I tested 2.2.15 and 2.2.17pre4
    and both work fine.

    But 2.2.17pre4, 2.2.12 (Redhat), 2.3.99pre6, 2.4.0-test2 ends with
    the same error during reading partition table:

    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 50MHz system bus speed for PIO modes; override with
    idebus=xx
    hda: WDC AC24300L, ATA DISK drive
    hdb: WDC AC36400L, ATA DISK drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: 8421840 sectors (4312 MB) w/256KiB Cache, CHS=557/240/63
    hdb: 12594960 sectors (6449 MB) w/256KiB Cache, CHS=833/240/63
    Partition check:
     hda:hda: status timeout: status=0xff { Busy }
    hda: drive not ready for command
    ide0: reset timed-out, status=0xff
    hda: status timeout: status=0xff { Busy }
    hda: drive not ready for command
    ide0: reset timed-out, status=0xff
    hda: status timeout: status=0xff { Busy }
    end_request: I/O error, dev 03:00 (hda), sector 0
    hda: drive not ready for command
     unable to read partition table
     hdb:hdb: status timeout: status=0xff { Busy }
    hdb: drive not ready for command
    ide0: reset timed-out, status=0xff
    hdb: status timeout: status=0xff { Busy }
    hdb: drive not ready for command
    ide0: reset timed-out, status=0xff
    hdb: status timeout: status=0xff { Busy }
    end_request: I/O error, dev 03:40 (hdb), sector 0
    hdb: drive not ready for command
     unable to read partition table

    (the same behavior both with and without ide0=ht6560b)

    With Andre's patches both disks works fine, but there is another
    problem, false "ports already in use":

    Uniform Multi-Platform E-IDE driver Revision: 6.30
    ide: Assuming 50MHz system bus speed for PIO modes; override with
    idebus=xx
    hda: WDC AC24300L, ATA DISK drive
    hdb: WDC AC36400L, ATA DISK drive
    ide1: ports already in use, skipping probe
    ide2: ports already in use, skipping probe
    ide3: ports already in use, skipping probe
    ide4: ports already in use, skipping probe
    ide5: ports already in use, skipping probe
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: WDC AC24300L, 4112MB w/256kB Cache, CHS=557/240/63
    hdb: WDC AC36400L, 6149MB w/256kB Cache, CHS=833/240/63
    .... other devices initialization
    Partition check:
     sda: sda1 sda2 sda3
     hda: [PTBL] [524/255/63] hda1 hda2 < hda5 >
     hdb: [PTBL] [784/255/63] hdb1 hdb2 < hdb5 >

    For completeness, this is clean 2.2.17pre4 kernel:

    hda: WDC AC24300L, ATA DISK drive
    hdb: WDC AC36400L, ATA DISK drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: WDC AC24300L, 4112MB w/256kB Cache, CHS=557/240/63
    hdb: WDC AC36400L, 6149MB w/256kB Cache, CHS=833/240/63
    .....

    Partition check:
     sda: sda1 sda2 sda3
     hda:hda: status timeout: status=0xff { Busy }
    hda: drive not ready for command
    ide0: reset timed-out, status=0xff
    hda: status timeout: status=0xff { Busy }
    hda: drive not ready for command
    ide0: reset timed-out, status=0xff
    hda: status timeout: status=0xff { Busy }
    end_request: I/O error, dev 03:00 (hda), sector 0
    hda: drive not ready for command
     unable to read partition table
     hdb:hdb: status timeout: status=0xff { Busy }
    hdb: drive not ready for command
    ide0: reset timed-out, status=0xff
    hdb: status timeout: status=0xff { Busy }
    hdb: drive not ready for command
    ide0: reset timed-out, status=0xff
    hdb: status timeout: status=0xff { Busy }
    end_request: I/O error, dev 03:40 (hdb), sector 0
    hdb: drive not ready for command
     unable to read partition table

    It seems the wrong behavior was fixed in ide-2.2..... patches, but
    not in both 2.2. and 2.4 mainstream kernel.

    Best Regards,

    Petr Soucek
    Ryston Electronics s.r.o
    petr@ryston.cz http://www.ryston.cz/

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