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    SubjectRe: 2.2.1 drivers/scsi/st.c
    On Jan 30, Wakko Warner wrote:

    > I don't understand enough about the kernel to do this so I'm asking here..
    >
    > In 2.0.36 when writing to a scsi tape, it would accept all data sizes
    > (mainly sending the output of gzip to the tape). In 2.2.1, it'll send all
    > out except for the last block (which is less than 4096, and I'm assuming
    > it's not the blocksize that the driver is expecting).
    >
    > What I'm looking for is a patch that will pad the block being written to the
    > next higher block size with NULLs.

    probably the wrong way to go -- padding NULLs might kill your original data (semantics)!

    which tape drive are you using ?


    check the default tape block size for both 2.0/2.2 kernel using `mt stat'.
    for DAT, EXABYTE etc. (which do support variable length tape blocks)
    you can/should use

    mt setblk 0

    to enable variable block lengths. so you can write final blocks which
    are not multiples of blocksize (and not mutliples of powers of two).


    Harald
    --
    All SCSI disks will from now on ___ _____
    be required to send an email notice 0--,| /OOOOOOO\
    24 hours prior to complete hardware failure! <_/ / /OOOOOOOOOOO\
    \ \/OOOOOOOOOOOOOOO\
    \ OOOOOOOOOOOOOOOOO|//
    Harald Koenig, \/\/\/\/\/\/\/\/\/
    Inst.f.Theoret.Astrophysik // / \\ \
    koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^

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