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    SubjectRe: Linux 2.4.21-rc3 : IDE pb on Alpha
    Hi again !

    the system could boot without DMA. It displayed lots of messages, but it seems
    to work :


    Linux version 2.4.21-rc3 (root@alpha) (gcc version 3.2.3) #4 Sun May 25 19:16:43 CEST 2003
    Booting on Tsunami variation Webbrick using machine vector Webbrick from SRM
    Command line: root=/dev/hda2 console=tty0 console=ttyS0,9600 bootdevice=scd0 bootfile=2.4.21-rc3/vmlinux
    memcluster 0, usage 1, start 0, end 256
    memcluster 1, usage 0, start 256, end 32655
    memcluster 2, usage 1, start 32655, end 32768
    freeing pages 256:384
    freeing pages 805:32655
    reserving pages 805:806
    On node 0 totalpages: 32655
    zone(0): 32655 pages.
    zone(1): 0 pages.
    zone(2): 0 pages.
    Kernel command line: root=/dev/hda2 console=tty0 console=ttyS0,9600 bootdevice=scd0 bootfile=2.4.21-rc3/vmlinux
    Using epoch = 1952
    Console: colour VGA+ 80x25
    Calibrating delay loop... 921.84 BogoMIPS
    Memory: 252720k/261240k available (2094k kernel code, 6472k reserved, 451k data, 320k init)
    Dentry cache hash table entries: 32768 (order: 6, 524288 bytes)
    Inode cache hash table entries: 16384 (order: 5, 262144 bytes)
    Mount cache hash table entries: 512 (order: 0, 8192 bytes)
    Buffer-cache hash table entries: 8192 (order: 3, 65536 bytes)
    Page-cache hash table entries: 32768 (order: 5, 262144 bytes)
    POSIX conformance testing by UNIFIX
    PCI: dev Adaptec AIC-7892A U160/m type 64-bit
    isapnp: Scanning for PnP cards...
    isapnp: No Plug & Play device found
    Linux NET4.0 for Linux 2.4
    Based upon Swansea University Computer Society NET3.039
    Initializing RT netlink socket
    srm_env: version 0.0.5 loaded successfully
    Starting kswapd
    Journalled Block Device driver loaded
    pty: 256 Unix98 ptys configured
    Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI ISAPNP enabled
    ttyS00 at 0x03f8 (irq = 4) is a 16550A
    ttyS01 at 0x02f8 (irq = 3) is a 16550A
    rtc: Digital UNIX epoch (1952) detected
    Real Time Clock Driver v1.10e
    Floppy drive(s): fd0 is 2.88M
    FDC 0 is a post-1991 82077
    Uniform Multi-Platform E-IDE driver Revision: 7.00beta3-.2.4
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    hda: WDC AC23200L, ATA DISK drive
    hdc: Maxtor 6Y120L0, ATA DISK drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    ide1 at 0x170-0x177,0x376 on irq 15
    hda: attached ide-disk driver.
    hda: task_no_data_intr: status=0x51 { DriveReady SeekComplete Error }
    hda: task_no_data_intr: error=0x04 { DriveStatusError }
    hda: host protected area => 1
    hda: 6346368 sectors (3249 MB) w/256KiB Cache, CHS=6296/16/63
    hdc: attached ide-disk driver.
    hdc: host protected area => 1
    hdc: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=238216/16/63
    Partition check:
    hda: hda1 hda2 hda3 hda7
    hdc: hdc1
    SCSI subsystem driver Revision: 1.00
    scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8
    <Adaptec 29160 Ultra160 SCSI adapter>
    aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs

    blk: queue fffffc00002214e8, no I/O memory limit
    Vendor: HP Model: C1537A Rev: L706
    Type: Sequential-Access ANSI SCSI revision: 02
    blk: queue fffffc00002216e8, no I/O memory limit
    Vendor: COMPAQ Model: BD01864552 Rev: 3B04
    Type: Direct-Access ANSI SCSI revision: 02
    blk: queue fffffc00002218e8, no I/O memory limit
    Vendor: COMPAQ Model: BD01864552 Rev: 3B04
    Type: Direct-Access ANSI SCSI revision: 02
    blk: queue fffffc0000221ae8, no I/O memory limit
    Vendor: COMPAQ Model: BD01864552 Rev: 3B04
    Type: Direct-Access ANSI SCSI revision: 02
    blk: queue fffffc0000221ce8, no I/O memory limit
    Vendor: COMPAQ Model: BD01864552 Rev: 3B04
    Type: Direct-Access ANSI SCSI revision: 02
    blk: queue fffffc000feee128, no I/O memory limit
    ------
    After that, nothing special. I'm amazed by the number of "blk: queue..."
    messages. This time, it only appears on SCSI, and not on IDE anymore.

    So it seems as the IDE problem is in the ALI 1543 / DMA code. I have an old
    K6/2 notebook somewhere with the same IDE controller, so I may retry on it.

    I'm interested in any suggestion, of course ;-)

    Willy

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