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    SubjectRe: Massive e2fs corruption with 2.2.9/10? (NOT HERE!)
    On Thu, 17 Jun 1999, Alan Cox wrote:

    > > If I copy a large (650Mb) file to a different filename, then perform a
    > > compare on them, I encounter random, different miscompares. I've seen
    > > this on several 2.2.9 and 2.2.10 systems.
    >
    > Ok people is this
    >
    > SCSI or IDE (or a mix)
    > What compiler was used
    >
    > I'll go try and break my hardisk

    Yet another datapoint:

    Result: No corruption here. I tested by generating a 200MB /scratch/random
    from dd'ing /dev/urandom then copying it and md5sum'ing it.

    Kernel:
    [root@cocoa /scratch]# cat /proc/version
    Linux version 2.2.10-ac2 (root@cocoa) (gcc version 2.7.2.3) #1 Sat Jun 19
    23:22:22 BST 1999

    Motherboard: Asus P2B, Intel BX

    CPU: Intel PII-266

    Memory: 1 x 64MB PC100, 1 x 128MB PC100

    Discs:
    [root@cocoa /scratch]# cat /proc/ide/hd?/model
    IBM-DHEA-36481
    FUJITSU MPA3035ATU
    CR-4801TE
    TAEIL CDD-7320T

    [root@cocoa /scratch]# cat /proc/ide/hd?/driver
    ide-disk version 1.08
    ide-disk version 1.08
    ide-scsi version 0.6
    ide-cdrom version 4.53

    [root@cocoa /scratch]# cat /proc/ide/hd?/settings
    name value min max mode
    ---- ----- --- --- ----
    bios_cyl 790 0 65535 rw
    bios_head 255 0 255 rw
    bios_sect 63 0 63 rw
    breada_readahead 4 0 127 rw
    bswap 0 0 1 r
    file_readahead 72 0 2097151 rw
    io_32bit 1 0 3 rw
    keepsettings 0 0 1 rw
    max_kb_per_request 122 1 127 rw
    multcount 8 0 8 rw
    nice1 1 0 1 rw
    nowerr 0 0 1 rw
    pio_mode write-only 0 255 w
    slow 0 0 1 rw
    unmaskirq 1 0 1 rw
    using_dma 1 0 1 rw
    name value min max mode
    ---- ----- --- --- ----
    bios_cyl 847 0 65535 rw
    bios_head 128 0 255 rw
    bios_sect 63 0 63 rw
    breada_readahead 4 0 127 rw
    bswap 0 0 1 r
    file_readahead 72 0 2097151 rw
    io_32bit 1 0 3 rw
    keepsettings 0 0 1 rw
    max_kb_per_request 122 1 127 rw
    multcount 16 0 16 rw
    nice1 1 0 1 rw
    nowerr 0 0 1 rw
    pio_mode write-only 0 255 w
    slow 0 0 1 rw
    unmaskirq 1 0 1 rw
    using_dma 1 0 1 rw
    name value min max mode
    ---- ----- --- --- ----
    bios_cyl 0 0 1023 rw
    bios_head 0 0 255 rw
    bios_sect 0 0 63 rw
    io_32bit 1 0 3 rw
    keepsettings 0 0 1 rw
    log 0 0 1 rw
    nice1 1 0 1 rw
    pio_mode write-only 0 255 w
    slow 0 0 1 rw
    transform 1 0 3 rw
    unmaskirq 1 0 1 rw
    using_dma 1 0 1 rw
    name value min max mode
    ---- ----- --- --- ----
    breada_readahead 4 0 127 rw
    dsc_overlap 1 0 1 rw
    file_readahead 72 0 2097151 rw
    io_32bit 1 0 3 rw
    keepsettings 0 0 1 rw
    max_kb_per_request 122 1 127 rw
    nice1 1 0 1 rw
    pio_mode write-only 0 255 w
    slow 0 0 1 rw
    unmaskirq 1 0 1 rw
    using_dma 1 0 1 rw

    Best Regards,
    Alex.


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