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    Subject2.4.10ac10, cdrecord 1.9-6, Mitsumi CR-4804TE: lock up burning too large image
    When (accidentally) trying to burn ~670MB onto a 74" cdr disk, I experienced
    a complete lock up.

    It went to 99% (as one would expect), and then drive began giving weird
    sounds - as if it was moving the head from start to end over and over. After
    a short while, the whole system locked up, no mouse, keyboard, caps lock,
    ctrl-alt-del, alt-sysrq-{s,u,b}.

    It used to give a nice error when disk size was exceeded with 2.2.18pre19
    and a tad older cdrecord (1.9-something (1.10-4 failed on 2.2 BTW, giving
    error on mmapping /dev/null)).

    I assume this is a kernel thing...

    BTW: Also the cd audio ripping speed has dropped from ~8x to ~1x with both
    my cdrw and cd drive. The drop took place before upgrading from 2.2 to 2.4.
    I am and was using scsi-emulation for both drives. I tried going back to
    older cdparanoia, but it didn't help. Before I try to binary search what has
    changed, does anybody have any ideas on what to try?

    kernel 2.4.10-ac10 SMP
    cdrecord 1.9-6

    scsi : 0 hosts left.
    SCSI subsystem driver Revision: 1.00
    scsi0 : SCSI host adapter emulation for IDE ATAPI devices
    Vendor: MITSUMI Model: CR-4804TE Rev: 2.4C
    Type: CD-ROM ANSI SCSI revision: 02
    APIC error on CPU0: 08(02)
    Attached scsi CD-ROM sr1 at scsi0, channel 0, id 1, lun 0
    sr0: scsi3-mmc drive: 32x/32x cd/rw xa/form2 cdda tray
    Uniform CD-ROM driver Revision: 3.12
    sr1: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray

    hdparm /dev/hdd:

    HDIO_GET_MULTCOUNT failed: Input/output error
    I/O support = 0 (default 16-bit)
    unmaskirq = 0 (off)
    using_dma = 1 (on)
    keepsettings = 0 (off)
    HDIO_GET_NOWERR failed: Input/output error
    readonly = 0 (off)
    BLKRAGET failed: Input/output error
    HDIO_GETGEO failed: Invalid argument

    cdrecord -scanbus:
    0,1,0 1) 'MITSUMI ' 'CR-4804TE ' '2.4C' Removable CD-ROM

    kernel messages before the lockup:

    Oct 20 20:35:53 kernel: scsi : aborting command due to timeout : pid 155966,
    @+scsi0, channel 0, id 1, lun 0 0x2a 00 00 05 48 9e 00 00 1f 00
    Oct 20 20:35:53 kernel: hdd: timeout waiting for DMA
    Oct 20 20:35:53 kernel: ide_dmaproc: chipset supported ide_dma_timeout func
    @+only: 14
    Oct 20 20:35:54 kernel: hdd: status timeout: status=0xd0 { Busy }
    Oct 20 20:35:54 kernel: hdd: drive not ready for command
    Oct 20 20:36:28 kernel: hdd: ATAPI reset timed-out, status=0xd0
    <halted at this point>

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